Answer:
see below ( I do not think 449.57 m^2 is correct for surface area)
Surface area = 374.65 m^2 Volume = 448.83 = ~~ 449 m^3
Step-by-step explanation:
Find the SURFACE AREA (NOT the volume)
Height of cone = sqrt ( 13^2 - 4.5^2) = 12.1963 m
surface area equation for cone = pi * r * (r+ sqrt (h^2+r^2) ) = 247.4 m^2
Sphere surface area = 4 pi r^2 = 254.5 m^2
HEMIsphere is 1/2 of this = 127.235 m^2
Add the two surface areas = 374.65 m^2
For VOLUME: cone 1/3 pi r^2 h = 257.979 m^3
HEMIsphere = 1/2 4/3 pi r^3 = 190.851 m^3
Total VOLUME is then 448.83 m^3
1. What is the sum of the four 30 degrees angles in the wheel? Show your work.
Answer:
120 degrees
Step-by-step explanation:
30 * 4 = 120
Answer:
Step-by-step explanation:
30 + 30 + 30 + 30 = 30 x 4 = 120 degrees
Use appropriate property and find -1/6×4/7+1/2-3/7×1/6
Answer:
1/3
Step-by-step explanation:
Multiply left to right, so you start with -1/6*4/7=-2/21
Then you apply the fraction rule so -1/6*4
and 4 can be expressed by 4/1 so -1/6*4/1=-2/3
Then after solving you will get -4/6
then you factor 4=2*2 what will be -2*2/6
Then you cancel the common factors what are 2
so you bring back the 7 so -2/3/7 and 7 can be expressed as 7/1 and then you apply the fraction rule and flip it to 1/7 what will be solved as -2/21
so then it will be -2/21+1/2-1/14-3/7*1/6
Then you will have to solve -3/7*1/6 what is 1/14
so -2/21+1/2-1/14=1/3 final equation
Answer:
⅓Step-by-step explanation:
Have a great day✧◝(⁰▿⁰)◜✧Patty has a flower box in the shape of a rectangular prism with interior dimensions that are 15 inches in length, 8 inches in width, and 6 inches in height. Patty will fill the flower box 3/4 full of soil. How many cubic inches of soil will be in the flower box?
Answer:
540 cubic inches.
Step-by-step explanation:
You are designing a triangular pennant for your school. If you have only 117 square inches of fabric and you want the pennant, when suspended from its base, to hang down 18 inches, what must the length of the
base be?
Answer:
13 inches
Step-by-step explanation:
Area of fabric : 117 square inchesHeight : 18 inchesBase x Height x 1/2 = Area (Fabric)Base x 18 x 1/2 = 117Base x 9 = 117Base = 13 inchesAnswer:
The base must be 13 inches
Step-by-step explanation:
Step 1: Determine the length of the base
[tex]A = 1/2 * b * h[/tex]
[tex]117\ in^2 = 1/2 * b * 18\ in[/tex]
[tex]117\ in^2 = 9\ in * b[/tex]
[tex]\frac{117\ in^2}{9\ in} = \frac{9\ in * b}{9\ in}[/tex]
[tex]13\ in = b[/tex]
Answer: The base must be 13 inches
PLEASE HELP NOW
HURRY
Answer:
13
Step-by-step explanation:
we us the pythagorean theorem
sqrt( 144 + 25) = 13
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS PLEASE AND PLEASE EXPLAIN WHY THAT IS THE ANSWER
Answer:
<1= 68 degree
<2= 112 degree
<3= 68 degree
<4= 112 degree
<5= 68 degree
<6= 112 degree
<7= 68 degree
<8= 112 degree
Step-by-step explanation:
steps in the image-
I NEED THIS ANSWER ASAP
base twelve needs 12 digits so we use "t" for ten and "e" for eleven and our usual ten digits.* what base ten number does 1t5e represent?
Answer:
65
Step-by-step explanation:
t = 10
e = 11
10 + (11*5)
65
On Friday, Jessica babysat for 3 hours and earned $27. On Saturday, Jessica babysat for 6 hours and earned $54. On Friday, Jessica babysat for 7 hours and earned $63. Write an equation to represent her earnings if x represents hours and y represents earnings
Answer:
y = 9x
Step-by-step explanation:
We can make the x-values represent how many hours Jessica babysat, and the y-values represent how much money she earned each day.
We have these points:
(3, 27)(6, 54)(7, 63)The days of the week she worked do not matter in this problem. We are just trying to find the association between hours worked and money earned.
We can start by finding the slope of the line by using two of the points. I will be using (3, 27) and (6, 54).
The slope formula is [tex]\displaystyle m = \frac{y_2-y_1}{x_2-x_1}[/tex].
Substitute these two points into the formula:
[tex]\displaystyle m = \frac{54-27}{6-3}[/tex] [tex]\displaystyle m = \frac{27}{3}[/tex][tex]m=9[/tex]The slope of the line is m = 9.
Now, we can use the point-slope equation to find the equation of the line that represents Jessica's earnings.
Point-slope equation: [tex]y-y_1=m(x-x_1)[/tex].
Substitute the slope m = 9 and the point (3, 27) into the equation.
[tex]y-(27)=9(x-(3))[/tex] [tex]y-27=9(x-3)[/tex] [tex]y-27=9x-27[/tex][tex]y=9x[/tex]The equation y = 9x represents Jessica's earnings, where x represents hours and y represents earnings.
Use a net to find the surface area of the prism.
What is the value of 14 × 10,000?
140
1,400
14,000
140,000
Answer:
140000
Step-by-step explanation:
Hewo Yuri-san here Allow me to help! :3
Answer:
-140,000
Step-by-step explanation:
Here's a trick I learned in 5th grade.
You see all the zero's behind the number 10,000 just add them onto the back of the number you're mutliplying with and it gives you the answer.
In this case, we have the number 10,000 with 4 zero's and we're going to add that to the back of 14 which gives us the answer 140,000 And they both have 4 zero's. :)
Therefore, the answer is 140,000
Hope this Helps!
Have a great day!
-Yuri-san
Read the following numbers and write them in expanded form 443 092 101
(d) Sandy’s gross annual income is $51,350. She is paid biweekly and has 5% deducted from her paycheck for her 403(b). Her employer matches her deduction, up to 4%. How much is deposited into Sandy’s 403(b) each payday?
Based on the annual income, the payment period, and the amount deducted for the 403(b), the amount deposited into Sandy's 403(b) is $220.
How much is deposited into Sandy's 403(b)?First find the biweekly income:
= 51,350 / (52 weeks / 2 )
= 51,350 / 21 weeks
= $2,445.24
5% is deducted from her wages and the employer matches 4% of the salary. The amount deposited is:
= (5% + 4%) x 2,445.24
= $220
Find out more on 403(b) at https://brainly.com/question/2908111.
Stacey has 30 hamburgers. 4/6 of them have cheese on them. The rest are plain. How many burgers have cheese on them?
Answer:
20 burgers
Step-by-step explanation:
4/6×30 = 2/3 ×30 = 60/3 = 20
Find dy/dx (the derivative ) of f(x) = 4x
2
using
limits definition of the derivitive (of limit of the
DQ when h> 0
Formulas needed
a) Equation of a line in slopeyintercept form y = f(x) = mx + b
b) Equation of a line slopepoint y y1 = m (x x1)
Derivative are used to determine the nature of a function. The derivative of the function f(x) = 4x^2 is 8x
Derivative of a functionThe formula for finding the derivative of a function is expressed as:
f'(x) = nax^n-1
Given the function expressed as:
f(x) = 4x^2
We are to find its derivative as shown:
f'(x) = 2(4)x^2-1
f'(x) = 8x^1 = 8x
Hence the derivative of the function f(x) = 4x^2 is 8x
Learn more on derivative here: https://brainly.com/question/416343
CAN SOMEONE PLEASE HELP ME WITH THIS
Answer:
7a is not a factor because it doesnt divide into anything.
7a is not a term because it is not only the variable.
3 is a constant because it is a number in the expression.
7a is not a coefficient because it is not just the number.
8b and 5b are like terms because they have the same variables.
None of these are true Thats false because some of the answers are right
I log 25 - 2log 3 2 - 2log3 + log 18 10
Step-by-step explanation:
1 log 5² - 2 log 2⁵ - 2log3 + log 18 10
= 2log 5 - 10log2 - 2log3 + log 18 10
Which table shows a data o for an antenna that revolves at exactly twice the rate of the antenna described in the graph?
The table shows a data for an antenna that revolves at exactly twice the rate of the antenna described in the graph is Table D.
How to illustrate the rate?The formula to calculate the rate will be:
= Change in revolution/Change in time
The rate of the given antenna will be:
= (60 - 30)/(4 - 2)
= 30/2
= 15
Also, the rate of antenna 1 is 23, antenna 2 is 25, antenna 3 is 2. The rate for antenna 4 will be:
= (720 - 660)/(24 - 22)
= 60/2
= 30
It can be seen that 30 is double of 15.
Therefore, table D revolves at exactly twice the rate of the antenna.
Learn more about rate on:
https://brainly.com/question/2375289
In which type of circuit can you find total resistance by adding all of the individual resistances?
Answer:
Series Circuit
Step-by-step explanation:
In a series circuit, the total resistance is equal to the sum of all resistances. Hope this helps u out!
Identify and correct the error. B 50° A 50
Answer:
30 degrees
this is a guess but an educated one because the total angle adds up to 180 deg so one i assume is around 100 plus 50 plus 30 makes sense
Write the algebraic expression that matches each graph.
Answer:
f(x) = |x - 2| - 2
Step-by-step explanation:
Based on the shape of the graph, it's an absolute value function.
so the template for it is f(x) = |x|
From there, you can make some additions to show how much the graph has shifted from the template equation
since the graph went over to the left by 2 units and down by 2 units, this is added into the equation as follows:
f(x) = |x - 2| - 2
a mountain bike is on sale for 25% off. The regular price is $123.50. About how much is the discount
X+3=2X+6(x+4)
Please Answer!
Find the equation of a line parallel to y=4x+2 that contains the point (−2,−3). Write the equation in slope-intercept form.
Answer:
y = 4x + 5
Step-by-step explanation:
Use point-slope formula to plug in the known point and slope.
find the surface area of each shipping package. Which package has the greater surface area? Does the same package have a greater volume?
package A: 14 x 12 x 3
package B: 11 x 6 x 8
Answer:
greater area: Ano, B has the greater volumeStep-by-step explanation:
The relevant area and volume formulas are ...
A = 2(LW +H(L +W))
V = LWH
When there are multiple instances of the calculations to be done, it is convenient to let a spreadsheet do them. The results are attached.
Figure A has the larger area.
Figure B has the larger volume.
__
Additional comment
The more "cube-like" the prism is, the less area it will have for the same volume. Here, package B is more "cube-like" than package A. (The ratio of largest-to-smallest dimensions is smaller for package B.)
If triangleABC is a right angle triangle at C.then what is the value of cos(A+B)
Answer:
Hi there!
As we know that the sum of all three angles of a triangle is 180°.
If ∆ABC is right angled at C
C = 90°
=> [tex]\:\mathsf\red{∠A\: +\:∠B\: +\: ∠C\:=\:180°}[/tex]
=> [tex]\:\sf{∠A\: +\:∠B\: +\: 90°\:=\:180°}[/tex]
=> [tex]\:\sf{∠A\: +\:∠B\: =\:180°\:-\:90°}[/tex]
=> [tex]\:\sf{∠A\: +\:∠B\: =\:90°}[/tex]
Multiplying cos both sides. We get,
=> [tex]\:\sf{cos\:(∠A\: +\:∠B)\: =\:cos\:90°}[/tex]
We know cos 90° = 0, by trigonometric ratio.
=> [tex]\:\sf{cos\:90°\:=\:0}[/tex]
So,
[tex]\:\mathsf{cos(∠A\: +\:∠B)=\:cos\:90°\:=\:0}[/tex]
=> [tex]\:\sf\purple{cos\:(∠A\:+\:∠B)\:=\:0}[/tex]
[tex]\:\mathsf\blue{Hope\:this\:helps\:you!\:}[/tex]
A factory’s production is modeled by function f(x) where f(x) is the number of parts produced per hour and x is the number of people working during production choose the ordered pair that represents a posible domain and range of the function
Answer:
5,10
Step-by-step explanation:
this is the answer
Ben spent 1/6 of his money on a burger, fries, and a drink. Then he spent half of the money he had left: $5 on a magazine, $8.25 on a bookmark, and $10.50 on a book. How much money did he have to begin with?
Please answer asap and please explain your answer.
The amount of money Ben had to begin with after spending 1/6 and 1/2 of it is 57 dollars.
How to find the how much money he had with an equation?let
x = amount he had to begin with
He spent 1/6 of his money on a burger, fries, and a drink. Therefore,
amount spent on burger, fries, and a drink = 1 / 6 x
Hence,
amount he had left = x - 1 / 6 x =6x - x /6 = 5 / 6 x
Then he spent half of the money he had left.
1 / 2(5 /6 x) = 5 + 8.25 + 10.50
5 / 12 x = 23.75
cross multiply
5x = 23.75 × 12
5x = 285
divide both sides by 5
x = 285 / 5
x = 57
Therefore, the amount of money he have to begin with is $57.
learn more on equation here: https://brainly.com/question/5718696
Answer:
$57
Step-by-step explanation:
10.50 - 7.50 = 3
3 x 19 =57
$57
Which unit could be used to measure the capacity of a kitchen pot? O a) kilograms b) quarts c) pounds
Answer:
a
Step-by-step explanation:
pounds because all will measure with it only even shop keepers........................................
A bowl has 8 green grapes and 15 red grapes. Henry randomly chooses a grape, eats it, and then chooses another grape. (a) What is the probability that both grapes are green? (b) What is the probability that Henry eats a red grape then a green grape?
Answer:
A. 28/253
B. 60/253
Step-by-step explanation
A. first step is to add all the grapes up which = 23
then you would put the
green grapes/ the total which would be 8/23
since henry ate one grape you would subtract 8-1 and then 23-1 and you would get 7 and 22
then you would put 7/22 and multiply 8/23 which gets you 28/253
B. first you put red grapes over total grapes which are 15/23
then,
you would do the green grapes which are 8/22
you would multiply 15/23 and 8/22 which = 60/253
Solve for t. Please help asap!
Answer:
The answer is B.
[tex]t=+\sqrt{\frac{d-3}{a} } , -\sqrt{\frac{d-3}{a}[/tex]
Step-by-step explanation:
[tex]d=3+at^2\\\\d-3=at^2\\\\\frac{d-3}{a}=t^2\\\\ t=+\sqrt{\frac{d-3}{a} } , -\sqrt{\frac{d-3}{a} }[/tex]