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inna [77]
4 years ago
9

Which expression is the factored equivalent of 3x2 + 18x + 15?

Mathematics
1 answer:
Y_Kistochka [10]4 years ago
6 0

3( {x}^{2}  + 6x + 5) \\ 3(x + 5)(x + 1)
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Let f(x) = 2x +5 and g(x) = x2 - 8x + 15. Perform f(x) · g(x)<br> HELP
LekaFEV [45]
-16x^2-10x+75
Answer^
5 0
3 years ago
Simplify to create to an equivalent expression 8k−5(−5k+3)
Alexeev081 [22]

Answer:

33k - 15

Step-by-step explanation:

=> 8k-5(-5k+3)

=> 8k+25k-15

=> 33k - 15

6 0
3 years ago
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Nadine's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store,
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3 years ago
Of all the people applying for a certain​ job, 80% are qualified and 20​% are not. The personnel manager claims that she approve
motikmotik

Answer:

69.23% probability that a person is not qualified if he or she was not approved by the manager.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes:

In this problem, we have these following probabilities:

80% probability that a person is qualified

20% probability that a person is not qualified.

90% probability that a qualified person is approved.

10% probability that a qualified person is not approved.

10% probability that an unqualified person is approved.

90% probability that an unqualified person is not approved.

Find the probability that a person is not qualified if he or she was not approved by the manager.

Desired outcomes

Unqualified and not approved.

20% are not qualified. Of those, 90% were not approved. So

0.9*0.2 = 0.18

Total outcomes:

Qualified and not approved or unqualified and not approved.

80% are qualified. Of those, 10% were not approved

20% are not qualified. Of those, 90% were not approved. So

0.8*0.1 + 0.9*0.2 = 0.26

Probability

P = \frac{0.18}{0.26} = 0.6923

69.23% probability that a person is not qualified if he or she was not approved by the manager.

7 0
3 years ago
F(x) = 4x - 1<br> g(x) = x2 - 4x<br> Find f(g(3))
nasty-shy [4]

Answer:

-13

Step-by-step explanation:

hello,

Replace x by the value as below

g(3)=3^2-4\times3=9-12=-3\\f(g(3))=f(-3)=4\times(-3)-1=-12-1=-13\\

Thanks

5 0
3 years ago
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