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Korvikt [17]
3 years ago
7

What is the area of this figure?

Mathematics
2 answers:
STALIN [3.7K]3 years ago
6 0
360 because you multiply 8 x 5 x 9
Crazy boy [7]3 years ago
5 0
The awnser would be 360 because 9x5x8=360.P.S. I used a caculator
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Can you guys help me find the slope for the given graph and y-intercept <br> (pictures included)
serious [3.7K]

Answer:

I believe the answer is

y =  \frac{2}{3} x + 1

slope = 2/3x

y-intercept = 1

Step-by-step explanation:

Hope this helps!

4 0
3 years ago
Alison saves 29.26 each month how many months will it take her to save enough money to buy a stereo for 339.12
AleksandrR [38]
29.26x=339.12
X=11.6
Therefore it wil take her 11.6 months
5 0
3 years ago
Read 2 more answers
Covert each into algebraic equations
marshall27 [118]

Answer:

1) 2x=4x-8

2) 4(x+2)=20

3) 2x-9=4(x+5)

3 0
2 years ago
The deck of a bridge is suspended 275 feet above a river. If a pebble falls off the side of the bridge, the height, in feet, of
Ivenika [448]

Answer:

Our equation for the height is:

y(t) = 275 - 16*t^2.

a) To find the average velocity between two times, t1 and t2, (where t2 > t1) the equation is:

AV = \frac{y(t2) - y(t1)}{t2 - t1}

Then:

i) t1 = 4s, t2 = 4s + 0.1s = 4.1s

The average velocity is:

AV = \frac{(275 - 16*4.1^2) - (275 - 16*4^2)}{4.1 - 4} = \frac{16(4^2 - 4.1^2)}{0.1} = -129.6

And the units will be ft/s, so the average speed is:

-129.6 ft/s

The minus sign is because te pebble is falling down.

ii)  t1 = 4s, t2 = 4s + 0.05s = 4.05s

The average velocity is:

AV = \frac{(275 - 16*4.05^2) - (275 - 16*4^2)}{4.05 - 4} = \frac{16(4^2 - 4.05^2)}{0.05} = -128.8

So the average speed is -128.9 ft/s

iii)  t1 = 4s, t2 = 4s + 0.01s = 4.01s

The average speed is:

AV = \frac{(275 - 16*4.01^2) - (275 - 16*4^2)}{4.01 - 4} = \frac{16(4^2 - 4.01^2)}{0.01} = -128.16

The average speed is -128.16 ft/s.

b) The instantaneous velocity of the pebble after 4 seconds can be obtained by looking at the velocity equation, that is the derivative of the height equation.

v(t) = dy(t)/dt.

v(t) = -2*16*t + 0

Then the velocity at t = 4s is:

v(4s) = -32*4 = -128

The instantaneous velocity at t = 4s is -128 ft/s.

3 0
3 years ago
Calculate the area of a circle with a diameter of 8cm.<br> Show all your work.
vesna_86 [32]

A≈50.27cm²

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·82≈50.26548cm²

7 0
2 years ago
Read 2 more answers
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