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3 years ago

Will mark brainliest!

Mathematics

2 answers:

kvasek [131]3 years ago

6 0

Answer:

Step-by-step explanation:

To find f(- 2) substitute x = - 2 into f(x)

f(- 2) = - 2(- 2)³ + (- 2)² + 4(- 2) - 3

= - 2(- 8) + 4 - 8 - 3

= 16 + 4 - 8 - 3

= 9 → B

sveticcg [70]3 years ago

4 0

Answer:

i think its 3

Step-by-step explanation:

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Please answer answer question

sertanlavr [38]

Answer:

156.6 m²

Step-by-step explanation:

To find the surface area of this pyramid, we need to find the area of the base and the sides.

The base triangle has a length of 9 and a height of 7.8. So:

$\frac{bh}{2} = \frac{9\cdot7.8}{2} = \frac{70.2}{2} = 35.1$

Now, the length of the sides are 9 and the height is 9. So:

$\frac{9\cdot9}{2} = \frac{81}{2} = 40.5$

Since there are 3 identical sides:

$40.5\cdot3=121.5$

Add the values:

$121.5+35.1=156.6$

Hope this helped!

7 0

3 years ago

Yessssssssssssss sirrrrrr

trapecia [35]

What if i’m not a sir??

6 0

3 years ago

Will give points :) :) .

joja [24]

EBC = 23°

180 - (46+111) = 23

8 0

3 years ago

Read 2 more answers

A (-7,0)

NeX [460]

Answer:

C bro and also my leg hurts

5 0

3 years ago

Use substitution to determine which of the following values for y are in the solution set of the inequality:

aleksandrvk [35]

Answer:

y = 30 and y = 40

Step-by-step explanation:

All you have to do is add 10 and 12, and see if its is greater than 34. Add the rest of the listed numbers to 12.

5 0

3 years ago

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