3 years ago

PLEASE HELP ME I WILL GIVE BRAINLIST

Mathematics

1 answer:

Hatshy [7]3 years ago

4 0

For the first one I believe it's the 3rd answer and for the second question I believe its the first answer

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If f(x) = 2x2 - x, find f(-3).

jonny [76]

F(x) = 2x^2 - x
if x=-3

f(-3) = (2*(-3)^2) - (-3)
f(-3) = (2*9) + 3
f(-3) = 18 + 3
f(-3) = 21

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2 years ago

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Find the area of the shape shown below... please

steposvetlana [31]

Answer:

12.5

Step-by-step explanation:

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For what value of x is P|| BC?<br> A. 5<br> B. 6<br> C. 7<br> D. 8

77julia77 [94]

Answer:

Option C. x=7

Step-by-step explanation:

we know that

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then

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Remember that

If two figures are similar them the ratio of its corresponding sides is proportional

$\frac{AP}{AB}=\frac{AQ}{AC}$

substitute the values

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Solve for x

$\frac{x}{2x+7}=\frac{x-3}{2x-2}\\ \\x(2x-2)=(2x+7)(x-3)\\ \\2x^{2}-2x=2x^{2}-6x+7x-21\\ \\3x=21\\ \\x=7\ units$

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An aquarium is 8 feet long, 5 feet wide, and 3.4 feet deep. What is the volume of the tank?

Novosadov [1.4K]

Answer:8x5x3.4= 132 feet squared

Step-by-step explanation:

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2 years ago

Out of 208 Marbles, 26 of them are red. What percent is red?

olga nikolaevna [1]

So, add the numbers together to get the total. Then #green/#total x 100 will give you the percentage.

Please let me know if you need additional clarification.

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2 years ago