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m_a_m_a [10]
3 years ago
7

Which statement best describes f(x)=-2sqrt(x-7+1)

Mathematics
2 answers:
andrew-mc [135]3 years ago
4 0
Plugging -6 in for x, we get -2sqrt(-6-7+1)=sqrt(something negative) which is clearly not possible.

Plugging -6 in for f(x), we get -6=-2sqrt(x-7+1) and 3=sqrt(x-7+1). Squaring both sides, we get 9=x-7+1 and by adding both sides by 6 we get 15=x, therefore having (15,-6) and proving that -6 is in the range, but not the domain (B)
sattari [20]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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PLEASE HELPPPPP. URGEENNTT!!! I DONT KNOW HOW TO SOLVE THIS
Oksi-84 [34.3K]

Answer:

A = 58.7 degrees

B = 66.9 degrees

C = 34.1 degrees

Step-by-step explanation:

<u><em>For <A:</em></u>

Tan A = \frac{opposite}{adjacent}

Tan A = \frac{23}{14}

Tan A = 1.6

A = Tan^{-1} 1.6

A = 58.7 degrees

<u>For <B:</u>

Sin B = \frac{opposite}{hypotenuse}

Sin B = \frac{23}{25}

Sin B = 0.92

B = Sin^{-1} 0.92

B = 66.9 degrees

<em><u>For <C:</u></em>

Sin C = \frac{opposite}{hypotenuse}

Sin C = \frac{14}{25}

Sin C = 0.56

C = Sin^{-1}0.56

C = 34.1 degrees

6 0
3 years ago
Find the greatest common factor of the following monomials 34n^5 32n4
Andrew [12]

Answer:

by u meant 32n^4, then the answer is 2n^4

Step-by-step explanation:

first find the gcf of the coefficient

32 and 34

their gcf is 2, because they're both even but have no other common factor, so it is 2

then for the variables

n^4 and n^5

their gcf is n^4. you can tell by dividing each term by n^4

n^4 / n^ 4 = 1

n^5 / n^4 = n

so then 2 * n^4 is 2n^4

7 0
3 years ago
Read 2 more answers
Please help !!!
-BARSIC- [3]

I know the parabola will open downward because the leading coefficient of the equation, being -5, is negative/less than zero.

5 0
4 years ago
Four years ago, Tom’s age was 3/4 of the age he will be in 6 years. How old is he now?
Juliette [100K]
22 years old I believe
7 0
3 years ago
Plssssss help!!!!!!!!!!!!!!!!
Juli2301 [7.4K]

Answer:

it is A

Step-by-step explanation:

a line is 180°, so if the ? and 140 are on the same line, 180-140 is your answer.

5 0
3 years ago
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