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Lisa [10]
2 years ago
8

100 POINTS!!! VERY URGENT

Mathematics
2 answers:
Marta_Voda [28]2 years ago
6 0

Answer:

<u>D) (f o g)(x) = 10x² - 60x + 93</u>

Step-by-step explanation:

f(x) = 10x² + 3

g(x) = x - 3

⇒ (f o g)(x)

⇒ f(x - 3)

⇒ f(x - 3) = 10(x - 3)² + 3

⇒ f(x - 3) = 10(x² - 6x + 9) + 3

⇒ f(x - 3) = 10x² - 60x + 90 + 3

⇒ <u>(f o g)(x) = 10x² - 60x + 93</u>

ahrayia [7]2 years ago
4 0

Answer:

\textsf{D)} \quad (f \circ g)(x)=10x^2-60x+93

Step-by-step explanation:

\textsf{If }\:f(x)=10x^2+3\:\textsf{ and }\:g(x)=x-3\:\textsf{ then}:

\begin{aligned}(f \circ g)(x) & = f[g(x)]\\ & = f(x-3)\\& = 10(x-3)^2+3\\& = 10(x^2-6x+9)+3\\& = 10x^2-60x+90+3\\& = 10x^2-60x+93\\\end{aligned}

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PLEASE HELP!!
den301095 [7]

Answer:

given the to find the circumference is diameter by pi, so divide 3.5 by pi to get 1.11408460164 so.. 1.114?

5 0
3 years ago
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The square of a positive number is equal to its triple added to 28. What is this number?​
sashaice [31]

hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

⊱┈────────────────────────┈⊰

\huge{ \rm{Answer:}}

The roots of the equation are 7 and -4, because 7 - 4 = 3 and 7. - 4 = -28

Step-by-step explanation:

The positive number is equal to 7.

Assuming that the number is equal to "x" we have:

\begin{gathered}x^2 = 3x + 28\\\\x^2 - 3x - 28 = 0\\\\a = 1\\\\b = -3\\\\c = -28\\\end{gathered}

By the sum and product method, we have:

\begin{gathered}S = -b / a\\\\S = -(-3) / 1\\\\S = 3\\\\\end{gathered}

\begin{gathered}P= c / a\\\\P = 28 / 1\\\\P = 28\\\\\end{gathered}

4 0
2 years ago
Explain how connecting digits to the right of the decimal point helps you multiply decimals.
Alex787 [66]

answer:

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Step-by-step explanation:

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5 0
3 years ago
X - 13 = x + 1 is it true
natulia [17]

Answer:

No it is wrong

Step-by-step explanation:

let's say the number is 15 is a substract 13 I get 2 but let's take 15 again of I add one I have 16 so it's incorrect

7 0
3 years ago
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When writing twenty-one-and-a-half-trillion in scientific notation, what is the exponent needed on the base ten?
Nat2105 [25]
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Thus, 21 1/2 trillion is    21 1/2 times 10^9, or 2.15 times 10^10

Hope this helps.  If not, ask for clarification.
5 0
3 years ago
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