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katen-ka-za [31]
3 years ago
5

Simplify the expression 2x(4 + x - 9 + 3x)

Mathematics
2 answers:
torisob [31]3 years ago
8 0
The answer is = A. 8x-10 ✔️✅
sammy [17]3 years ago
6 0
The answer is d 8x^2 - 10
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The functions (x) and g(x) are defined below.
harina [27]
The answer is: A

I hope it’s helps you :)
6 0
2 years ago
Use trigonometric ratios to find the indicated side
iragen [17]

Answer:

a = 139.1

b = 56.2

Step-by-step explanation:

A. Reference angle = 68°

Opp = a

Hyp = 150

Therefore:

Sin 68 = opp/hyp

Sin 68 = a/150

150*sin 68 = a

a = 139.1 (nearest tenth)

B. Reference angle = 68°

Adj = b

Hyp = 150

Therefore:

Cos 68 = adj/hyp

Cos 68 = b/150

150*cos 68 = b

b = 56.2 (nearest tenth)

4 0
2 years ago
Suppose that f(x) is an EVEN function and let the integral f(x) dx from 0 to 1=5 and the integral f(x) dx from 0 to 7 =1. What i
Cerrena [4.2K]
<span>Since it's even, the integral from -7 to -1 is the same as the integral from 1 to 7.
</span><span>think about
x^2 from 0..1,its 1/3
from 0..7 its 7^3/3
from -1..7 its 7^3/3+1/3
</span>
<span>from -7..-1 of x^2 its -1/3+7^3/3 to get this without integrating we just do 7^3/3-1/3 which is the integral from 0..7 minus the integral from 0..1
</span><span>So the integral from 1 to 0 f(x) dx = 5 changes to the integral from 0 to 1 f(x) dx = -5 and you add it to the integral from 0 to 7 which is 1 making -4</span>
4 0
3 years ago
Ignore the answers! I need help I’ll mark u brainly
Vinil7 [7]
7. X2=25
X=5, x=—5

8. (X—3)2=49
X=10, x=—4

9. X2+3x—28.
X=4, x=—7.

10. 5x2–8=3x.
X=8/5, x=—1
8 0
3 years ago
Read 2 more answers
Mr. Scott times three fair coins. What is the probability that all three coins will land heads-up?
andrew-mc [135]

Answer:

3.3333 repeating

Step-by-step explanation:

This is the answer because if you take 100 percent or just 100, and divide that by the number of coins there are ( which there are 3 in this case) then you would get your answer which is 3.3333 repeating...

Hope this answer helps

6 0
3 years ago
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