plz help me asapppppppp

Plz Help Me Asapppppppp

Answers

Answer 1

Answer:

7. x = 37.5

8. x = 8

Step-by-step explanation:

7. The sides of the triangles are proportional, therefore:

x/20 = (46 - 16)/16

x/20 = 30/16

Cross multiply

x*16 = 30*20

16x = 600

Divide both sides by 16

x = 600/16

x = 37.5

8. The sides of the triangles are proportional. Therefore,

(7x - 1)/22 = (3x + 1)/10

Cross multiply

10(7x - 1) = 22(3x + 1)

70x - 10 = 66x + 22

Collect like terms

70x - 66x = 10 + 22

4x = 32

4x/4 = 32/4

x = 8


Related Questions

Y=6(1.02)^x growth or decay?

Answers

Answer:

(Exponential) Growth

Step-by-step explanation:

Given that the growth rate is greater than 1, this is exponential growth where the growth rate is 2%.

Simplify the difference. (2w2 – 8w – 8) – (5w2 + 3w – 5)

Answers

Answer:

-3w2-11w-3

Step-by-step explanation:

take w2 and w as variables. you can substitute it as w2=y and w=X then expand brackets

2y-8x-8-5y-3x+5

note that the signed changed at the second part because it was expanded with the minus sign which is basically like -1, so it changes the signs

then you collect like terms:

2y-5y-8x-3x-8+5= -3y-11x-3

now put substitute back w2=y and w=X

-3w2-11w-3

if it won't be a problem solving with w2 and w, then you skip the substitution part and solve the same

classify the angles below as acute, right, obtuse or straight ​

Answers

Answer:

Obtuse - over 90°

Acute - less than 90°

Right - 90°

Straight - 180°

1. Obtuse

2. Acute

3. Right

1. Obtuse angle
2. Acute angel
3. Right angle

Help pls I’ll give extra points

Answers

Answer:

1. Gorgeous

2. Tremendous

3. Coarse

4. Crackling

5. Appetizing

Step-by-step explanation:

Those are the only words that make sense in each square.

Answer:

1.) gorgeous

2.) tremendous

3.) crackling

4.) coarse

5.) appetizing

6.) buttery

7.) magnificent

Hope this helps!

Please help…. The table below shows the amount of money Linda spends for a craft demonstration

Answers

to get the equation of any straight line, we simply need two points off of it, let's use those ones in the picture below.

[tex](\stackrel{x_1}{8}~,~\stackrel{y_1}{32})\qquad (\stackrel{x_2}{15}~,~\stackrel{y_2}{53}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{53}-\stackrel{y1}{32}}}{\underset{\textit{\large run}} {\underset{x_2}{15}-\underset{x_1}{8}}} \implies \cfrac{ 21 }{ 7 } \implies 3[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{32}=\stackrel{m}{ 3}(x-\stackrel{x_1}{8}) \\\\\\ y-32=3x-24\implies {\Large \begin{array}{llll} y=3x+8 \end{array}}[/tex]

From a rock ledge, the angle of elevation to the top of a tree is 22°. The angle of depression to the base of the tree is 12°.

a) Find the height of the rock ledge, to
the nearest metre.
b) Find the height of the tree, to the
nearest metre.

Answers

The height of the rock ledge will be 20.35 meters.

The height of the tree will be 58.75 meters

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The angle of elevation to the top of a tree is 22°.

And, The angle of depression to the base of the tree is 12°.

Now,

Let the height of the rock ledge = x

So, By figure, we get;

⇒ tan 12° = x / 96

⇒ x = 96 × tan 12°

⇒ x = 20.35 meters

And, Let total height of the tree = x + y

                                                = 20.35 + y

Hence, By figure, we get;

⇒ tan 22° = y / 96

⇒ y = 96 × tan 22°

⇒ y = 96 × 0.40

⇒ y = 38.4 meter

Thus, The height of tree = 38.4 meters + 20.35 meters

                                      = 58.75 meters

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To find:-

The height of the rock ledge.Height of the tree .

Answer:-

Part A :-

Here we can see that the distance between the rock ledge and the base of the tree is 96m . Also the angle of elevation to the top of the tree from the rock is 22° .

Firstly, we can see that,

[tex]\implies \angle CAD =\angle EDA = 12^o\\[/tex]

This is so because they are alternate interior angles .

Now , in ADE ,

[tex]\implies \tan\theta =\dfrac{p}{b}=\dfrac{AE}{ED}\\[/tex]

[tex]\implies \tan 12^o =\dfrac{AE}{96m} \\[/tex]

[tex]\implies AE = 96\tan12^o m \\[/tex]

[tex]\implies AE = 96 (0.21)m \\[/tex]

[tex]\implies AE = 20.16 \ m \\[/tex]

Hence the height of the rock ledge is 20.16 m.

_______________________________________

Part B :-

Now in ACB , we have;

[tex]\implies \tan\theta =\dfrac{BC}{AC} \\[/tex]

[tex]\implies \tan 22^o =\dfrac{BC}{96m} \\[/tex]

[tex]\implies BC = 96\tan 22^o \ m \\[/tex]

[tex]\implies BC = 96(0.4) m \\[/tex]

[tex]\implies BC = 38.4 \ m \\[/tex]

Now the total height of the tree will be = BC + AE

[tex]\implies h_{tree}= BC + AE \\[/tex]

[tex]\implies h_{tree}=38.4\ m + 20.16 \ m =\boxed{58.56\ m} \\[/tex]

Hence the height of the tree is 58.56m.

and we are done!

Two parallel lines are crossed by a transversal.

Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom right angle is 50 degrees. At the intersection of lines c and a, the top left angle is y degrees.
What is the value of y?

Answers

The value of y is 130°

What are corresponding angles?

The angles occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

Given here:

Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom right angle is 50 degrees. At the intersection of lines c and a, the top left angle is y degrees.

Thus the angle adjacent to the 50-degree angle will be 130

but this angle corresponds to the angle y thus y=130 as corresponding angles are equal when a transversal intersects two parallel lines

Hence, The value of y is 130°

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Lydia used 1/3 pound of peppers and 1/10 pound of cheese to make 3 pizzas. If Lydia uses the same recipe to make 1 pizza, how much cheese is needed?​

Answers

Answer: Lydia used 1/3 pound of peppers and 1/10 pound of cheese to make 3 pizzas, which means that she used 1/3 / 3 = 1/9 pound of peppers and 1/10 / 3 = 1/30 pound of cheese per pizza.

If Lydia uses the same recipe to make 1 pizza, she will need 1/9 pound of peppers and 1/30 pound of cheese. Therefore, the amount of cheese needed is 1/30 pound.

Step-by-step explanation:

In this figure please see attached questions

Answers

y2 = 14

y1 = 2

Solution

m = (14 - 2) / (8 - 2)

m = 4 / 4 = 1

Remark

Why is the slope one? I should be 2 shouldn't it? No because there is a common factor to be taken out -- the common factor is 2Answer:

Step-by-step explanation:

y = 2x - 2

x        y

2       2

4       6

6      10

8       14

I will use Desmos to get the line.

The slope  should be 2

Formula

Slope (m) = ( (y2 - y1) / (x2 - x1) )

Givens

x2 = 8

x1 = 4

y2 = 14

y1 = 6

Solution

m = ( (14 - 6) / ( 8 - 4)

m = 8 / 4

m = 2

4.5% is equivalent to what fraction in reduced terms

Answers

9/200

Step-by-step explanation:

I hope this helps :), have a nice day!

When 4 is added to five times a number the sum is 34. Find the number. *

Answers

Answer:

let the number be 'x'

now,

4+5x=345x=34-4x=30/5x=6

so, the number is 6.

hope it helps

stay safe, healthy and happy.

Complete the square for the expression. Then factor the trinomial.
x2 - 6x
Expression:
Factored form:

Answers

Expression: x² - 6x + 9

Factored form: (x - 3)²

Using the concept of factorization.

What is factorization?

The breaking or breakdown of an entity (such as an integer, a matrix, or even a polynomial) into such a combination of some other unit, or factors, whose multiplication yields the original number, matrix, etc., is known as factorization or factoring in mathematics.

Similarly to this, factoring is a very useful technique in algebra that is utilized at all levels. Additionally, to, of course, simplify complex expressions, it offers a standard way for solving quadratic equations. Graphing functions also makes advantage of it.

Factor the expression, put each factor equal to 0, and then solve each equation to solve a quadratic equation by factoring. To do this, rearrange all terms on one side of the equation such the other side equals 0.

Given that,

x² - 6x

Now, to find the value of c = (b/2)²

divide the coefficient of x by 2.

So, divide 6 by 2 we get: ( -1.3)²

Next, multiply -1 by 3: (-3)²

Now, raise -3 to the power of 2, we get: 9

So, the expression becomes: x² - 6x + 9

Factorized form: (x - 3) (x -3)

or we can write (x - 3)²

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WILL MARK BRAINLIEST!!!


Given: square ABCD with a perimeter of 48 units. Find the number of units in BD (in simplest radical form)

Answers

Answer:

12√2 units

Step-by-step explanation:

Step-by-step explanation:

perimeter of a square=4side

perimeter= 4s= 48 units

S= 48/4

S = 12 units

digonal BD = S√2

= 12√2 Units

BD = 12√2 Uits

Manuel's small dog eats
1
8
bag of dog food in 1 month. His large dog eats
5
8
bag of dog food in 1 month.

How many bags do both dogs eat in 6 months?

Answers

Answer:

I wanna say 348?? maybe.... I think

The dogs both would eat 4 1/2 bags

ANSWER FAST
q>d, if d=3

Answers

Answer:

It depends on what q is.

Step-by-step explanation:

Is d is less than q then q will be greater.

Answer:

q would be anything that’s over 3

Step-by-step explanation:

If d=3, then q>3, so q is any number larger then 3

I thought of a number, added 26 to it, and then divided the result by 20.what is my number?

Answers

Answer:

Step-by-step explanation:

14 MAY BE

What are the x-intercepts of the following graph? On a coordinate plane, a parabola opens down and goes through (negative 2, 0), has a vertex at (0, 4), and goes through (2, 0). a. (0, 2) and (0, -2) c. (2, 0) and (-2, 0) b. (0, 4) d. (1, 0) and (3, 0)

Answers

Answer:

C

Step-by-step explanation:

If you read the question carefully, you find that the function goes through (- 2,0) and (2,0)

Where the y value = 0 you have points that are x intercepts. The answer is anything where the y value = 0

The x intercepts are (-2, 0 ) and (2,0)

The answer is C

Answer:

c

Step-by-step explanation

(2, 0) and (-2, 0)

40% of an hour?

(I've tried 24 minutes...it's not the answer)

Answers

40% of an hour is 24 minutes.

Given there are 60 minutes in an hour, we can multiply this by 0.4 to find that 24 minutes constitutes 40% of an hour. I assume the system is not working properly for you, but 40% of an hour is 24 minutes.

40% of an hour is 24 minutes = 2/5 hours.

What is  multiplication?

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

Given that,

there are 60 minutes in an hour,

we can multiply this by 0.4 to find that 24 minutes constitutes 40% of an hour.

i.e. 60*40%= 24 minutes

Hence, 40% of an hour is 24 minutes = 2/5 hours.

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Tell whether the angles are complementary or supplementary. Then find the value of x.

Answers

Answer:

Complementary

x = 15

Step-by-step explanation:

Given angles are complementary, because their sum is 90°.

Now, let us find the value of x.

-> 3x° + 45° = 90°

-> 3x° = 90° - 45°

-> 3x° = 45°

-> x = 45/3

-> x = 15

MAp teat need help fast

Answers

Answer:

50.3

Step-by-step explanation:

--o-=o=-o-o-o=--o-=o=-o-o-o-o=-

Explain how to write a quadratic equation given the following three points on the graph (5,31) (3,11) (0,11)

Answers

Given:

The graph of a quadratic function passes through the points (5,31) (3,11) (0,11).

To find:

The equation of the quadratic function.

Solution:

A quadratic function is defined as:

[tex]y=ax^2+bx+c[/tex]            ...(i)

It is passes through the point (0,11). So, substitute [tex]x=0,y=11[/tex] in (i).

[tex]11=a(0)^2+b(0)+c[/tex]

[tex]11=c[/tex]

Putting [tex]c=11[/tex] in (i), we get

[tex]y=ax^2+bx+11[/tex]               ...(ii)

The quadratic function passes through the point (5,31). So, substitute [tex]x=5,y=31[/tex] in (ii).

[tex]31=a(5)^2+b(5)+11[/tex]

[tex]31-11=a(25)+5b[/tex]

[tex]20=25a+5b[/tex]

Divide both sides by 5.

[tex]4=5a+b[/tex]                  ...(iii)

The quadratic function passes through the point (3,11). So, substitute [tex]x=3,y=11[/tex] in (ii).

[tex]11=a(3)^2+b(3)+11[/tex]

[tex]11-11=a(9)+3b[/tex]

[tex]0=9a+3b[/tex]

Divide both sides by 3.

[tex]0=3a+b[/tex]                 ...(iv)

Subtracting (iv) from (iii), we get

[tex]4-0=5a+b-3a-b[/tex]

[tex]4=2a[/tex]

[tex]\dfrac{4}{2}=a[/tex]

[tex]2=a[/tex]

Putting [tex]a=2[/tex] in (iv), we get

[tex]0=3(2)+b[/tex]

[tex]0=6+b[/tex]

[tex]-6=b[/tex]

Putting [tex]a=2,b=-6[/tex] in (ii), we get

[tex]y=(2)x^2+(-6)x+11[/tex]

[tex]y=2x^2-6x+11[/tex]

Therefore, the required quadratic equation is [tex]y=2x^2-6x+11[/tex].

3. Selecting three desserts from eight possible choices on a menu. How
many choices are there if you determine a 1st, 2nd and 3rd rank. What are
the possible outcome? Show all evidence of understanding.

Answers

Answer:

56 possible outcomes

Step-by-step explanation:

Order does not matter in this case, so we will find all the possible combinations:

8 nCr 3 = 8! / ((8 – 3)! 3!) = 40320 / 720 = 56

Therefore, there are 56 possible outcomes.

How do I even do thissss?

Answers

Please provide your question with a math problem in the form of an image or text.

I will say, your username is true!

If x = 7, which inequality is true?
A.
- 4 + 3x < 17
C. -7 - 2x > 1
B. 5-XS 9
D. 1 - 4x2 25

Answers

Answer:

c would be it

Step-by-step explanation:

Answer:

B. or D., not sure the inequality for B. & D.

Step-by-step explanation:

substitute 7 to the inequalities to find if it's true:

A. - 4 + 3x < 17 => -4 + 3(7) < 17 => 17 < 17 (false)

C. -7 - 2x > 1 => -7 - 2(7) > 1 => -21 > 1 (false)

Help asap PLSSS!! I’d really appreciate it. Thank you!!

Answers

The value of x and y in equations 17x - y = 40 and 2x + 4y = 50 are x = 3 and y = 11.

What is equation ?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

A mathematical expression with an equals sign is referred to as an equation. Algebra is widely used in equations. When performing calculations but unsure of the precise amount, algebra is used.

17x - y = 40  ⇒ (1)

2x + 4y = 50 ⇒ (2)

(1)* 4

68x - 4y = 160

Adding equation (1) and (2)

68x - 4y = 160

2x + 4y = 50

⇒ 70 x = 210

        x = 3

Substituting the value of x in equation (1)

17*3 - y = 40

51 - y = 40

-y = 40 - 51

-y = -11

y = 11

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PLEASE HELP WITH EASY FRACTIONS APPRECIATED MUCH!!!

Answers

Answer: 3/4 is right

Step-by-step explanation:

help with this math assignment pls

Answers

From the classification angles, it was possible to find the arcs:

UL=40, UY= 90, TY=50, YLE =270, LE=140 and UET=220.

UET

If UE= 180 and TE=40, you have:

UET=UE+TE

UET=180+40

UET=220

Classification Angles

They are a lot of classifications for angles like complementary angles, supplementary angles, right angles, and others. See below:

complementary angles - two angles whose sum is equal to 90°.supplementary angles - two angles whose sum is equal to 180°.right angles - angles whose measure is 90°.opposite angles - opposite angles consequently they are congruent.

The question gives mTE=40, and it asks:

UL

UL is opposite the arc TE, therefore its value is also 40.

UY

The figure shows a right angle, then UY is equal to 90.

TY

If UY is equal 90, YE is equal to 90 too, because they are supplementary. If YE=90 and TE=40, you have:

TE+TY=90

40+TY=90

TY=90-40

TY=50

YLE

YLE = YE+UE. The figure shows YE=90 and UE represents a semicircle (180). Thus,

YLE= 90+180=270

LE

If UE= 180 and UL=40, you have:

UE=UL+LE

180=40+LE

LE=180-40

LE=140

UET

If UE= 180 and TE=40, you have:

UET=UE+TE

UET=180+40

UET=220

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. This line plot shows how many miles Maya walked this week.

Answers

Answer:

60.5 or 60 1/2

Step-by-step explanation:

7 (2)

8.5 (1)

9 (1)

9.5 (2)

10 (1)

14 + 8.5 + 9 + 19 + 10

60.5

D) 60 1/2 miles is the correct answer

PLZ HELP!!! BRAINLYEST WILL BE GIVEN TO BEST ANSWER!!!! IF YOU PUT A LINK I WILL REPORT YOU!!!!! DONT TRY ME!!!!!! YALL BEEN WASTING MY POINTS LATELY I HATE IT SO NO SNEAKY LINK OR NON ANSWER OR U WILL BE REPORTED.

I tried to count it but with 8 annoying siblings messing with u all the time, it is impossible

Answers

The answers is 16 students donated food.

Find the area of the polygon.
19 ft
14 ft
3 ft
4 ft
4 ft

Answers

The answer is 3ft.







Explain …
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