3 years ago

Hello anybody want to talk

Mathematics

1 answer:

pishuonlain [190]3 years ago

7 0

Answer:

Sure, I'm bored anyways XD

Step-by-step explanation:

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Given that f(x) = x2 + 10x + 21 and g(x) = x + 7, find (f•g)(x) and express

sammy [17]

Answer:

Step-by-step explanation:

$given \\ f(x) = x ^{2} + 10x + 21 \: and \: g(x) = x + 7$

$as \: we \: know \: (f.g)x \: is \: same \: as$

$f(g(x))$

$so \:$

$f(x + 7) = ( x + 7) ^{2} + 10(x + 7) + 21$

$f(x + 7) = {x}^{2} + 14x + 49 + 10x + 70 + 21$

$f(x + 7) = x^{2} + 24x + 140$

$therefore$

$(f.g)x = {x}^{2} + 24x + 140$

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3 years ago

Using the distributive property, rewrite this equation and put the correct numbers in place of the blanks.

ANTONII [103]

Answer:

There's no equation. You must've forgotten to put the file in the question.

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3 years ago

6/15=2/c HOW TO SOLVE THIS PROBLEM

Maslowich

The answer is 5.
you can turn it into a fraction ratio (6 over 15 is equal to 2 over c) and then cross multiply

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3 years ago

Read 2 more answers

Sierra is attending a university where tuition is $8,600 per year. She recieved a $4,000 grant and her parents will give her ano

7nadin3 [17]

Shw will nead to earn 2,100 dollars

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3 years ago

A class contains 10 sophomores, 15 juniors, and 20 seniors. A committee of 5 students is to be chosen. Each student is equally l

Anna35 [415]

Answer:

P(A) = 0.1620 , P(A|B) = 0.0707

Step-by-step explanation:

Total people = 10 + 15 + 20 = 45 , Sophomores = 10, Juniors = 15 , Seniors = 20

P(A) , exactly 3 juniors selected = (15 c 3) (30 c 2) / (45 c 5) = (455 x 435) / 1221759 = 0.1620

P (B) , exactly 2 seniors selected = (20 c 2) (25 c 3) / (45 c 5) = (190 x 2300)/ 1221759 = 0.3576

P(A|B), exactly 3 juniors & exactly 2 seniors selected = P (A∩B) / P (B)

(15 c 3) (20 c 2) / (45 c 5) = (455 x 190) / 1221759 = 0.0707

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3 years ago