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Gnesinka [82]
3 years ago
14

Does anyone know this?

Mathematics
2 answers:
barxatty [35]3 years ago
8 0

Answer:

\Huge \boxed{-2}

Step-by-step explanation:

f(x)=-2x^2-2x+10

For f(2), the input of the function is 2.

Let x = 2.

f(2)=-2(2)^2-2(2)+10

Evaluate.

f(2)=-2(4)-2(2)+10

f(2)=-8-4+10

f(2)=-2

lora16 [44]3 years ago
5 0

Answer:

f(x) =  - 2 {x}^{2}  - 2x + 10

put the value of x = 2

f(2)  =  - 2( {2}^{2} )  - 2(2) + 10

f(2)  =  - 8 - 4 + 10

f(2) =  - 12 + 10

f(2) =  - 2

hope it helps u

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If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nea
777dan777 [17]

Answer:

<u>The lengths of side A is 22.4 and B is 11.9</u>.

Step-by-step explanation:

Given:

If side A is twice as long as B and C is 25 using the Pythagorean Theorem.

Now, to find the lengths of side A and B.

Let the side B be x.

So, the side A be 2x.

Side C = 25.

Now, to solve by using Pythagorean Theorem:

A² + B² = C²

(2x)^2+(x)^2=(25)^2

4x^2+x^2=625

5x^2=625

<em>Dividing both sides by 5 we get:</em>

x^2=125

<em>Using square root on both sides we get:</em>

x=11.18.

<u>B rounding to the nearest tenth =  11.9.</u>

Now, to get A by substituting the value of x:

2x\\=2\times 11.18\\=22.36.

<u>A rounding to the nearest tenth =  22.4.</u>

Therefore, the lengths of side A is 22.4 and B is 11.9.

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15 Points!! Please help and explain how to solve them!! I really want to understand it
babymother [125]
1) idk I got none of your options
2)p=42,000÷(1+0.0225÷12)^(12×5)
P=37,535.04
3)PVAO=4900*12[(1/0.029)-(1/0.029*(1+0.029)^10]=504145.41..compare with 500000
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4)lucas
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((8,476.20−7,912.8)
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Peton
55×72.03=3,961.65
((4,192.10−3,961.65)
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8 0
3 years ago
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