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3 years ago

Find the volume of the pyramid

Mathematics

1 answer:

tigry1 [53]3 years ago

4 0

V pyramid = (1/3)*B*h where B is the area of the base
V = (1/3) * 12 * 16 * 7
V = 448 m^3

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A gardener measured the heights of two plants at the end of every week. The function y=3x+8.5 gives the hight of plant a in cent

MAVERICK [17]

Answer:

12 weeks

Step-by-step explanation:

Step one:

given data

let the heights of the plants be y

and the number of weeks be x

Plant A

y=3x+8.5--------------1

Plant B

y=2.5x+14.5----------2

Required

The number of weeks taken for both plants to have the same height

,equate the two expressions above

3x+8.5=2.5x+14.5

3x-2.5x=14.5-8.5

0.5x= 6

divide both sides by 0.5

x= 6/0.5

x= 12 weeks

6 0

3 years ago

For the function f(x) = 2x +3, evaluate f(3).

AveGali [126]

Answer:

Step-by-step explanation:

f(3) = 2(3) + 3

= 9

4 0

3 years ago

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Help me please I’ll give brainlest if it right

beks73 [17]

Answer:

it' should be 0.15 have a great day

8 0

3 years ago

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5(y-4)=7(2y+1) I need the answer

8_murik_8 [283]

Answer: $y = -3$

Move all terms containing y to the left, all other terms to the right

Add -14y to each side of the equation

$-20 + 5y + -14y = 7 + 14y + -14y$

Combine like terms: 5y + -14y = -9y

$-20 + -9y = 7 + 14y + -14y$

Combine like terms: 14y + -14y = 0

$-20 + -9y = 7 + 0\\-20 + -9y = 7$

Add '20' to each side of the equation

$-20 + 20 + -9y = 7 + 20$

Combine like terms: -20 + 20 = 0

$0 + -9y = 7 + 20\\-9y = 7 + 20$

Combine like terms: 7 + 20 = 27

$-9y = 27$

Divide each side by -9

$-9y/9=27/-9\\y=-3$

8 0

3 years ago

Write 0.0002839 in scientific notation.

Anika [276]

Answer:2.84 x 10-4

There you go!

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3 years ago

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