3 years ago

Please help x

Mathematics

1 answer:

seraphim [82]3 years ago

5 0

7) (-30x^2 -20)/3x^2-3
8) squareroot(20b+3)
9) (S-d)/2(symbol for pi)×d

(i could not fit 7,8 and 9 into the picture)

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5. A rectangular pyramid measures three feet by four feet at the base, and has a height of seven feet. Find its volume.

den301095 [7]

Answer: 28 ft

Step-by-step explanation:

Multiply 3,4, and 7 to get 84 ft cubed. To find the volume of a pyramid, divide by 3 to get 28 ft.

4 0

3 years ago

NEED ANSWER FAST PLASE FAST

Dovator [93]

Answer:

D. no solution

Step-by-step explanation:

h-z=3(1)

h=3+z(minus z from both side)

put in the second equation

-3h,+3z=6(2)

-3(3+z)+3z=6

-9-3z+3z=6

-9=6( not true)

so the equation doesn't have a solution.

3 0

2 years ago

A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(

Marina86 [1]

$f(t) = -16t^{2} +48t + 100$
Average rate of change from t = 3 seconds to t = 5 seconds = $\frac{f(5)-f(3)}{5-3} = \frac{(-16( 5^{2})+48(5)+100)-(-16( 3^{2})+48(3)+100 }{2}=$ $\frac{(-16(25)+240+100)-(-16(9)+144+100)}{2} = \frac{(-400+240+100)-(-144+144+100)}{2}=$ $\frac{-60-100}{2} = \frac{-160}{2} = -80$

5 0

2 years ago

Need help on this please!

omeli [17]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Rewrite <br> 4x-8y=16 in slope intercept form.

strojnjashka [21]

-8y = -4x + 16
Y = 4/8x - 2

6 0

3 years ago