Find the surface area of the regular pyramid. HELP QUICK!! (Asking again because the commenter DankBoi18 tried to put a virus on my pc)

Find The Surface Area Of The Regular Pyramid. HELP QUICK!! (Asking Again Because The Commenter DankBoi18

Answers

Answer 1

We will see that the surface area of the triangular pyramid is equal to 170.1 yd^2

How to get the area of the pyramid?

Remember that the area of a triangle is equal to:

A = (1/2)*b*h

Where b is the base, and h is the height.

On the triangular pyramid, we have 3 faces with a base of 9 yards and a height of 10 yd, so the area of these 3 faces is:

A  = (1/2)*(10 yd)*(9 yd) = 45 yd^2

Also, we can see that the bottom face has a base of 9 yards and a height of 7.8 yards, then its area is:

A' = (1/2)*(9 yd)*(7.8 yd) = 35.1 yd^2

So the total surface area of the pyramid is:

S = 3*A + A' = 3*45 yd^2 + 35.1 yd^2 = 170.1 yd^2

If you want to learn more about pyramids, you can read:

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Related Questions

HELP ME PLEASE WORTH 25 points

Answers

I think the answer is A) 8

Answer:

A. 8

Step-by-step explanation:

When finding the radius of a circle given area we have to remember the following formulas

[tex]A=\pi *r^{2}[/tex]   and    [tex]r^2=\frac{A}{\pi }[/tex]   or    [tex]r=\sqrt{\frac{A}{\pi } }[/tex]

So using either  [tex]r^2=\frac{A}{\pi }[/tex]   or    [tex]r=\sqrt{\frac{A}{\pi } }[/tex]  we fill out the following

[tex]r^2=\frac{64\pi }{\pi }[/tex]    [tex]r=\sqrt{\frac{64\pi }{\pi } }[/tex] both would equal 8  

The image below explains how we get 8  

PLEASE I REALLY NEED SOMEONE TO ANSWER THIS FOR ME. IF SOMEONE CONTINUES TO ANSWER MY QUESTIONS ILL KEEP UPPING THE POINTS>

Answers

Answer:

WHAT NEEDS TO BE ANSWERED?????

Step-by-step explanation:

I CAN MAYBE HELP!!!

Answer:

Which DId you forgot to link it?

Step-by-step explanation:

im confuseddddddddddddd

Answers

Answer:

You spent $14.5

Step-by-step explanation:

You just add tgem ad yeah

Answer:

Step-by-step explanation:

barrier = parameter, so we add all the sides:

8+3+3+5+5 = 24

24*1.75 = $42.

THEN, we need the area to solve for the mulch.

I would split it up into two parts so the rectangle and then the triangle.

First, 8*3 is 24

now we divide this by four because one bag covers four square feet

so, 6 bags (24/4=6) which is $36 (6*$6).

_______________

Now, the triangle, which a = (hb*b)/2

12 divided by four again so 3

3 * 6 = $18.

Now we add ALL costs up to get

42+36+18 = $96 total for the entire project.

write a function for the line that includes the points (4,-5) and (8,-7)

Answers

Answer:

[tex]y = -\frac{1}{2} x - 3[/tex]

Step-by-step explanation:

Answer:

f(x) = -1/2x - 3.

Step-by-step explanation:

The slope of the line = ((-7 - -5) / (8 - 4)

= -2/4

= -1/2.

y - y1 = m(x - x1)

m = -1/2, x1 = 8 and y = -7 so:

y - (-7) = -1/2(x - 8)

y + 7 = -1/2x + 4

y = -1/2x - 3.

A scientist wants to estimate the number of lions living in a region.

On Thursday, he locates and tags some lions. I

On Friday he returns and locates 10 less lions than he had on Thursday.

He notices that 4 of the lions are tagged

The scientist works out an estimate for the total number of lions living in the

region.

He notices that the number of lions that he had caught on Thursday, was a

fifth of the total number of lions.

How many lions live in the region?

Answers

The number of the lions that live in the region investigated by the considered scientist is 80.

How to form mathematical expression from the given description?

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

For this case, we're specified that:

He locates and tags lions on ThursdayOn friday, he locates 10 less lions than he had on Friday.He notices (on friday) that 4 of the lions are tagged.The number of lions caught on thursday was a fifth of the total number of lions.

Let we take:

x = number of lions the scientist located and tagged on thursday.

Then, we get:

x - 10 = number of lions the scientist located (and assumingly found that they're tagged) on friday,

4 = number of lions he found tagged on friday.

That means, x -10 is same number as 4

or, we get:

[tex]x - 10 = 4\\\text{Adding 10 on both the sides}\\\\x = 14[/tex]

That means, on thursday, the scientist located and tagged 14 lions.

Now, suppose that the region had 'y' number of lions,

Then, as per the data in the question,

one-fifth of y =  number of lions located by scientist on thursday

or, we get:
[tex]\dfrac{y}{5} = x\\\\\dfrac{y}{5} = 14\\\\\text{Multiplying 5 on both the sides}\\\\y = 80[/tex]


Thus, the number of lions that live in the region considered is 80

Learn more about forming equations here:

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The total number of lines is 70.

We have given that,

A scientist wants to estimate the number of lions living in a region.

On Thursday, he locates and tags some lions.

On Friday he returns and locates 10 less lions than he had on Thursday.

He notices that 4 of the lions are tagged

The scientist works out an estimate for the total number of lions living in the region.

we have to determine the no of lines in the length.

on Thursday no.of lines=x

on friday=(x-10)=4

x-10=4

add like terms

What is the like terms?

Like terms are terms whose variables and their exponents such as the 2 in x^2 are the same.

x=10+4

x=14

No.of total lions =5th of (no. of tagged on Thursday.)

=5(14)

=70

Therefore the total number of lines is 70.

To learn more about the word problem visit:

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please help, thanks if you do

Answers

Answer:

(2,7)

Step-by-step explanation:

not sure if this is correct though

EASY POINTS!!
Question 4 of 10
True or false? The graph represents a function
A. True
B. False
SUBMIT

Answers

Answer: True

Step-by-step explanation:

It passes the vertical line test, no two points are on the same x value

Correct option is A .True . The given graph is of a function by vertical line test

What is a vertical line test for function?

The vertical line test is a test that checks whether a  given graph is of a function or not. It states that every vertical line passing through the given graph should intersect the graph at most one point .( which comes from the definition of function that that a function takes every point in the input set to a unique image in the codomain set)

For the given graph whenever we will draw a vertical line passing through any point on the domain then it will cut the graph at one point only this can be seen in the attached figure.

Therefore, its true that the given graph represents a function.

Correct option is A. True.

Also, Learn more about the vertical line test from the link below:

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A system of equations has no solution. if y = 8x 7 is one of the equations, which could be the other equation? 2y = 16x 14 y = 8x – 7 y = –8x 7 2y = −16x − 14

Answers

A system of equations has no solution. if y = 8x+ 7 is one of the equations, The other equation will be y = 8x - 7.

What is the system of two equations?

A set of two linear equations with two variables is called a system of linear equations. They create a system of linear equations when evaluated collectively.

The first equation is given as:

y = 8x + 7

The equations in the system would have different constant values if the system of equations had no solution.

y=8x+b

Where:

b is a variable that is not equal to 7.

The equation whose standard form is y=ax+b has no solution. Only equation 2 satisfies the generalized form.

Hence.if y = 8x+ 7 is one of the equations, The other equation will be y = 8x - 7.

To learn more about the system of two equations refer to the link;

https://brainly.com/question/21620502

Answer:

B

Step-by-step explanation:

A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?

2y = 16x +14  

y = 8x – 7

y = –8x + 7

2y = −16x − 14

Select the correct answer from the drop-down menu.
Consider each table of values.
Function f
Function g
Function h
х
X
Ax)
х
g(x)
x
х
h(x)
1
5
3
17
N
8.8
N
11
5
25
15.6
4 6
3
29
7
33
6
22.4
4.
83
9
41
8
29.2
of the three functions,
represent linear relationships.
Reset
Next

Answers

Answer:

69

6+6 = 12

and

12 + 12 24

24 + 24 48

48 + 12 = 69

Mr. Blue's first year salary is $30,000 and it doubles each year. What is the explicit rule for the sequence in simplified form?


Question 3 options:


an = 30,000(2)n


an = 29,500(2)n−1


an = 30,000(2)n−1


an = 30,000(0. 5)n+1

Answers

Answer:

an = 30000 * 2^(n-1)

Step-by-step explanation:

The explicit rule of Mr. Blue 's salary

is an = 30000 * 2^(n-1)

How to determine the explicit

How to determine the explicitformula?

Mr. Blue's salary is a geometric sequence

with the following parameters:

First term, a1 = 30000

Rate, r = 2

The explicit rule is calculated as:

an = a1* r^(n-1)

This gives

an = 30000 * 2^(n-1)

please help, thank you if you do help me

Answers

Answer:

Question 1: -3

Question 2: 5

Step-by-step explanation:

Question 1's value decreses by 3 so the answer is -3 :)

Question 2's value increases by 5 so the answer is 5 :)

Have an amazing day!!

Please rate and mark brainliest!!

A bike wheel has a 16-inch diameter. Approximately how far will the wheel travel in three rotations? Use 3.14
for π

Answers

Answer:

151 inches

Step-by-step explanation:

(2 points 8. Triangle ABC is shown on the graph below! IL 6 1 c. Triangle ABC is translated 1 unit night and 2 units down. What are the coordinates of the translated triangle? d. Use arrow Rotation to write a rule for this translation,​

Answers

Answer:

see explanation

Step-by-step explanation:

(c)

1 unit right means add 1 to the x- coordinate

2 units down means subtract 2 from the y- coordinate.

A (1, 3 ) → A' (1 + 1, 3 - 2 ) → A' (2, 1 )

B (4, 5 ) → B' (4 + 1, 5 - 2 ) → B' (5, 3 )

C (3, 1 ) → C' (3 + 1, 1 - 2 ) → C' (4, - 1 )

(d)

the translation rule is

(x, y ) → (x + 1, y - 2 )

You have read 4 of the books shown. Which choice shows 2 ways of writing the fraction of these books that you read?

Answers

Total books read: 4Total books in list: 12

So it can be shown as:

[tex]\sf \dfrac{read \ books}{total \ books \ in \ list}[/tex]

[tex]\hookrightarrow \sf \dfrac{4}{12}[/tex]

on simplifying

[tex]\hookrightarrow \sf \dfrac{1}{3}[/tex]

So, option 1 is correct.

First one

Let's find

Total read books=4Total books=12

fraction:-

4/12

Cancel by 4

1/3

Hence verified

PLs help need in 2 minutes

Answers

There are 1.25 pounds of beans in each bag
Explanation: 20 divided by 16= 1.25

help im stuck on this question

Answers

Answer:

The answer is C. The frequency is 15 more than expected.

Step-by-step explanation:

A dice has 1-6. There are 3 odd numbers and 3 even numbers. So a 50% chance of landing an even number. Since you rolled 30 times and got 18 even then more than half of 30 times.

Ali is collecting signatures for a petition

• He currently has 520 signatures.

• He has 6 more weeks to collect the remaining signatures he needs.

• He needs a total of at least 1,000 signatures before he can submit the petition.

Ali wants to collect the same number of signatures each week.

Which number line represents all possible numbers of signatures Ali could collect in each of the remaining

weeks so that he will have enough signatures to submit the petition?

A

0

+

10 20 30 40 50 60 70 80 90 100 110 120

B. +

0

+ +

10 20 30 40

+

50 60 70 80 90 100 110 120

C

0

+

+

10 20 30 40 50 60 70 80 90 100 110 120

D D

0

10 20 30 40 50 60 70 80 90 100 110 120

Answers

Using proportions, it is found that he should collect 80 signatures in each week.

What is a proportion?

A proportion is a fraction of a total amount.

He currently has 520 signatures, and needs 1000, hence he needs to collect more 1000 - 520 = 480 signatures.

He has six weeks to collect the signatures, hence the number he needs to collect each week is given by:

N = 480/6 = 80.

More can be learned about proportions at https://brainly.com/question/24372153

Alexandra and Stephanie are sisters, and they're saving their money to buy a used car. Together they have more than $2,500, and Alexandra has $700 more than Stephanie. How much money does Stephanie have?

Answers

Answer:

Stephanie has more than $900

Step-by-step explanation:

Represent the unknowns:  a for Alexandra and s for Stephanie.

Then a + s > $2,500, and a = s + $700.

Substituting the latter into the former equation, we get:

(s + $700) + s > $2,500, or

2s > $1800

Then s > $900; Stephanie has more than $900.

Someone, please help me! I will give Brainliest!

Identify the key features of the parabola, 8(y + 4) = (x + 1)2:

Axis of Symmetry:

Vertex:

Focus:

Directrix:

Answers

Answer:

Step-by-step explanation:

8(y+4)=2(x+1)

divide by 8    y+4=1/4x+1/4   subtract 4    y=1/4x - 3 3/4   multiply by 4   y=1/4(x-15)

Answers:

Equation in standard form: [tex]y = \frac{1}{8}(x+1)^{2} -4[/tex]

Axis of Symmetry: x = -1

Vertex: (-1, -4)

Focus: (-1, -2)

Directrix: y = -6

Step-by-step explanation:

First, let's clean up some of the mess with the equation that we have been given in this question and put it in standard form so that we can find the features we've been asked to give.

Our initial equation is:  [tex]8(y+4)=(x+1)^{2}[/tex]

In order to put our equation in standard form, we must isolate y, so that it is in terms of y.

First, we need to divide both sides by 8. When we do this, we get  [tex]y+4=\frac{(x+1)^{2} }{8}[/tex] or [tex]y+4=\frac{1}{8}(x+1)^{2}[/tex]. Then we need to subtract 4 from both sides to get:  [tex]y = \frac{1}{8}(x+1)^{2} -4[/tex].

Now, we can start to find the features of the parabola. Remember, the standard form of equations involving parabolas is [tex]y=a(x-h)+k[/tex] where [tex]a =\frac{1}{4p}[/tex].

The axis of symmetry is at [tex]x=h[/tex], in this case [tex]h=-1[/tex] so the axis of symmetry is [tex]x=-1[/tex].

The vertex is located at [tex](h, k)[/tex]. As we previously stated [tex]h=-1[/tex], but additionally, [tex]k=-4[/tex] making the vertex located at [tex](-1,-4)[/tex].

The focus is located at [tex](h, k+p)[/tex] and the directrix is located at [tex]y=k-p[/tex]. For this, we need to find p which we can find with the equation [tex]a =\frac{1}{4p}[/tex]. Substituting the value of “a” into the equation, we get [tex]\frac{1}{8} = \frac{1}{4p}[/tex]. We can cross-multiply to get the equation [tex]4p=8[/tex]. Dividing by 4 on both sides, we get [tex]p=2[/tex]. Now we can find the focus and directrix.

The focus is located at [tex](-1, [-4+2])[/tex] or [tex](-1,-2)[/tex] and the directrix is represented by the equation [tex]y=(-4-2)[/tex] or [tex]y=-6[/tex].

Hopefully this answered your question this time, and with this, I hope you are able to solve it without help the next time

What is the distance between the points (-4 , -12) and (-4 , 21) in the coordinate plane?

Answers

Answer:

33

Step-by-step explanation:

Because 21 goes to 0 then to -12 we add then and it equals 33. I hope this helps!

Nadia needs one cup of ice cream for every student in her class for their year-end party. the ice cream is only sold in pints. if there are 24 students in her class, how many pints of ice cream will she need? describe how to solve this problem.

Answers

Answer:

12 pints

Step-by-step explanation:

There are 24 students & each one gets 1 cup, so you will need 24 cups total.  There are 2 cups in a pint.  You divided the 24 cups you need by 2 cups in a pint to get the answer of 12 pints.

You can double check:  12 pints converted to cups (2 cups in a pint) is 12 x2 = 24 cups

X = Y + 4
2x - 3y = -2
2) What is the solution to the system of equations?
A) (6, 10)
B) (9.5)
(10.6)
D) (14.10)

Answers

Answer:

D) (14.10)

Step-by-step explanation:

x-y=4

2x -3y= -2

2. (x-y=4)2

(2x -3y= -2) 1

3. 2x-2y=8 (equation 1)

2x-3y =-2 (equation 2)

4.subtract equation 2 from equation 1 to eliminate x

5. y= 10

6. use either of the initial equations to find x eg.

x-y = 4

x- 10= 4

x = 10 + 4

x= 14

therefore x,y = 14,10

A bank account balance, in dollars, is modeled by the equation f(t)=1000⋅(1. 08)t, where t is time measured in years.


About how many years will it take for the account balance to double? Explain or show how you know

Answers

F(t) = 1000 * 1.,08 * t

Initiaton deposition 1000

interest annually

t = years

How long does it take to double the amount , 1000 * 2= 2000

2000 = 1000 * 1,08^t

2000 / 1000 = 1,08 ^t

2 = 1,08^t

log 2 = log 1,08 ^t

log 2 = t * log 1,08

log 2 / log 1,08 = t

t = 9 years

What are the missing measures for E and J???

Are the triangles similar? Yes or no?

Answers

Answer:

No

Step-by-step explanation:

To tell whether two triangles are similar or not, we can compare their side lengths or angle measures

in this case, only angle measure are given so will compare those:

m<F = m<I but this is not enough, we need to compare other angles as well

m<H is not equal to m<G

The sum of interior angles in a triangle is equal to 180

so the measure of angle J

100+55+J = 180

J = 25

The measure of angle E

100+35+E = 180

E = 45

Now, neither of these angles are equal to each other so we can conclude that these triangles are not similar.

what is the probability of pulling a red card out o a deck of cards

Answers

Answer:

26/52 or 1/2

Step-by-step explanation:

there's 52 cards in a deck 26 of them are red 26 of them are black

two events A and B, are independent P(A)=0.3 P(A and B)=0.24 what is P(B)

Answers

Answer: 0.8

Step-by-step explanation: where the events are independent you multiply p(A) by p(B)

Please help and match the following.

Answers

Answer:

-4x^3 is a monomial

2x + 3 is a binomial

5x^2 + 2x - 10 is a trinomial

Step-by-step explanation:

Monomial equations have one term, biomials have two terms, and trinomial have three.

Answer:

-4x^3 is Monomial

2x + 3 is binomial

5x^2 + 2x - 10 is trinomial

Step-by-step explanation:

Monomial means one term

Binomial is 2 terms

Trinomial is 3 terms

Hope this helps!

Colter rides his dirt bike 8800 yards in 3 days how many miles did he ride?

Answers

Answer:

5 miles

Step-by-step explanation:

Step 1:  Convert yards to miles

[tex]1760\ yards = 1\ mile[/tex]

[tex]8800\ yards * \frac{1\ mile}{1760\ yards}[/tex]

[tex]5\ miles[/tex]

Answer: 5 miles

"How many buses do you need for 800 people "if each bus holds 175 people?

Answers

5 buses

Explanation:

1 bus → 175 people

=======

? bus → 800/175

? bus → 4.57

Rounding to nearest whole number : 5

A coin is biased to display heads 75% of the time. it is tossed 20 times, and the outcomes are recorded. the most improbable simulation for this coin is heads.

Answers

A percentage is a way to describe a part of a whole.  The most improbable simulation for this coin is heads are 9.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

The most improbable simulation for this coin for heads is the frequency of heads coming up out of 20 which is far from the estimated frequency. Since out of these 20 times 75% of the times the head will come up. Therefore, the number of times the head will come up can be written as,

[tex]75\%\ of\ 20\\\\= \dfrac{75}{100} \times 20\\\\= 15[/tex]

Now it is estimated that at least 15 times out of 20, the head will come up. Thus, the most improbable simulation for this coin is heads are 9.

Learn more about Percentages:

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Answer:

A coin is biased to display heads 75% of the time. It is tossed 20 times, and the outcomes are recorded. The most improbable simulation for this coin is

9 heads.

Step-by-step explanation:

Other Questions
The House and Senate ______ Committees are responsible for reviewing each agency's budget, which includes interviewing top officials from each federal agency. Figure b 32.5 12.5 30 figure a 13 12 5 If the relative frequencies being compared are 0.21 and 0.79, which conclusion is most likely supported by the data? an association cannot be determined between the categorical variables because the relative frequencies are not similar in value. there is likely an association between the categorical variables because the relative frequencies are not similar in value. an association cannot be determined between the categorical variables because the sum of the relative frequencies is 1.0. there is likely an association between the categorical variables because the sum of the relative frequencies is 1.0. revolution that questioned accepted views of the world In memory research, retrieval, remembering, and knowing do not mean the same thing. Retrieval is the general act of recalling or recognizing something from memory, Remembering, specifically applies to situations when we retrieve personal memories of events, and knowing refers to_____ The earliest surviving Shang writing on oracle bone inscriptions was primarily used for what purpose?A. To document family histories and genealogiesB. To mark military accomplishments and great moments in Shang historyC. To ask gods questions about lifeD. To make political announcements to the people E. To praise local elites 11 is a quotient of a number y and 6 Who lead the french forces in the battle of puebla?. Lin needs `5` cups of flour to make muffins for her family, but only has `3. 5` cups of flour left. How much more flour does she need? what is an example of parallelism in Eraser tattoo? What is extinction? Explain how human activities can lead to extinction of some species. Rajani has a bag that contains strawberry chews, cherry chews, and lime chews. She performs an experiment. Rajani randomly removes a chew from the bag, records the result, and returns the chew to the bag. Rajani performs the experiment 38 times. The results are shown below: A strawberry chew was selected 23 times. A cherry chew was selected 4 times. A lime chew was selected 11 times. Based on these results, express the probability that the next chew Rajani removes from the bag will be strawberry or cherry as a fraction in simplest form. journal entry from the perspective of caliban Can I get some help for these questions? During World War I, how did Britains systems of production and distribution provide the nation with advantages, but also create vulnerabilities? What is protoplasm of a cell that surrounds the nucleus?a. Cytoplasmb. Centrosomec. Membraned. Mitosis Pleasse I need help Asap!!!!Help Pleaseeee The play states that Earhart was "commander" of the flight in name only. In what ways was Earhart as much in command as Stultz and Gordon? Use at least TWO details from the play to support your answer. Identify the trinomial that is not a perfect square. A. 64x2 + 48x + 9 B. 25x2 + 70x + 49 C. 100x2 + 60x + 9 D. 121x2 + 100x + 25 Art can provide a unique and meaningful reflection on the value of a culture. Art can educate about current issues: destruction of the rain forest, bring people closer to religious values and traditions.a. Trueb. False