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Salsk061 [2.6K]
3 years ago
12

Given f(x)=x^2+2x-2, evaluate f(-2)​

Mathematics
2 answers:
sergiy2304 [10]3 years ago
6 0

Step-by-step explanation:

<h3>f(x) = x² + 2x - 2</h3><h3>f(-2) = (-2)² + 2 (-2) - 2</h3><h3> = 4 - 4 - 2</h3><h3> = - 2</h3><h3 />

Hope it will help :)

marysya [2.9K]3 years ago
4 0

Answer:

-2

Step-by-step explanation:

Substitue -2 into every x factor

-2^2 + (-4) - 2

4 - 4 - 2

-2

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What is the area of the triangle?<br> 6<br> 2<br> 3
Llana [10]

Answer:

6

Step-by-step explanation:

Find the area of both triangles inside the bigger triangle and add them together.

Use the Pythagorean theorem to find the missing length of the leg in the smallest triangle:

a² + b² = c²

2² + b² = 3²

4 + b² = 9

5 = b²

2.2 ≈ b

Calculate the area of the smaller triangle:

1/2(bxh)

1/2(2 x 2.2)

1/2(4.4)

2.2

Calculate the area of the bigger triangle:

<em>We know that the longer leg is 3.8 units because we were able to subtract the length of the smaller triangle's leg from 6. </em>

1/2(bxh)

1/2(2 x 3.8)

1/2(7.6)

3.8

Add both areas to find the area of the largest triangle:

3.8 + 2.2 = 6

7 0
3 years ago
Chris has a job selling newspapers every morning. He receives a base pay of $10 per day and also gets 15 cents for every paper h
Sergeu [11.5K]
16.45-10=6.54
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I hope this helps :)
6 0
3 years ago
Read 2 more answers
Consider the polynomial below.
kotykmax [81]

Answer:

(-4x - 2)(-5x) + (-4x - 2)(3)  

Step-by-step explanation:

Your polynomial is

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

The distributive property states that

a(b + c) = ab + ac

Let a = -4x - 2.  Then

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

Substitute the value of a.

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

You have just distributed the first binomial (-4x - 2) among the terms of the second binomial.

3 0
3 years ago
Please helpppppppp :))))))) it would really mean a lot!
vredina [299]

Answer:

I believe it's going to be C) rectangle.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help this is due today, its one question
strojnjashka [21]
2389.51 times 6% equals 143.37 so 6% of his total sales equals 143.37.  6.25 times 37.5 equals 234.37  234.37+143.37 equals 377.745 so no it isn't enough. I hope this answer helps you
7 0
4 years ago
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