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zhuklara [117]
3 years ago
15

78 davided by 21 what is the anerw

Mathematics
1 answer:
ira [324]3 years ago
3 0

Answer:

Step-by-step explanation:

3.714285714285714‬

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If f(x) = -4x2 - 6x-1 and g(x) = – x2 - 5x + 3, find (f+ g)(x).
ziro4ka [17]

Answer:

- 5x² - 11x + 2

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= - 4x² - 6x - 1 + (- x² - 5x + 3)

= - 4x² - 6x - 1 - x² - 5x + 3 ← collect like terms

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4 0
3 years ago
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Find the value of x.
lawyer [7]

Answer:

\huge\boxed{x=\sqrt{70}}

Step-by-step explanation:

ΔABC and ΔADB are similar (AAA).

Therefore the corresponging sides are in proportion:

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Substitute:

AB=x\\AC=7+3=10\\AD=7

\dfrac{x}{7}=\dfrac{10}{x}       <em>cross multiply</em>

(x)(x)=(7)(10)\\\\x^2=70\to x=\sqrt{70}

4 0
3 years ago
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15 is the correct answer
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F(x) = x^2. What is g(x)?
MatroZZZ [7]

Answer:

D. g(x)=(3x)^2

Step-by-step explanation:

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3 years ago
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