2 years ago

What is the surface area of the cube below?

Mathematics

1 answer:

insens350 [35]2 years ago

3 0

Answer:

24^2

Step-by-step explanation:

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If f(x) = 2x2 – 2, what is X, what is f(-6) give the right answer for a brilliant!

NARA [144]

Answer:

f(- 6) = 70

Step-by-step explanation:

To evaluate f(- 6) , substitute x = - 6 into f(x)

f(- 6) = 2(- 6)² - 2 = 2(36) - 2 = 72 - 2 = 70

5 0

2 years ago

The temperature in Minneapolis, Minnesota, at 4 P.M. was 15°F. By midnight, the temperature had deceased by 18°. What was the te

Sholpan [36]

Answer:

23F

Step-by-step explanation:

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2 years ago

2,000 10,000 milligrams grams 6 7 HELPPPPPPPPP

denpristay [2]

Answer:

2000 milligrams —> 2 grams

6000 milligrams —> 6 grams

7000 milligrams —> 7 grams

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3 years ago

Find the value of a and of b for which (a) the solution of x2 + ax -2<x < 4

KengaRu [80]

Answer: $a = -2$

$b = 8$

Step-by-step explanation:

Given :

$x^{2} +ax$

re - writing the equation , we have

$x^{2} +ax-b$

we need to find the value of a and b for which -2<x < 4 , this means that the roots of the quadratic equation are -2<x < 4.

The formula for finding the quadratic equation when the roots are known is :

$x^{2}$ - sum of roots(x) + product of root = 0

sum of roots = -2 + 4 = 2

product of roots = -2 x 4 = -8

substituting into the formula , we have:

$x^{2} -2x-8=0$ , which could be written in inequality form as

$x^{2} -2x-8$

comparing with $x^{2} +ax-b$ , it means that :

$a = -2$

$b = 8$

3 0

2 years ago

Vertex form of -x^2-8x-16

WARRIOR [948]

Answer:

$y = - (x + 4)^{2}$

6 0

2 years ago