3 years ago

10.

Mathematics

1 answer:

Tamiku [17]3 years ago

8 0

Answer:

Step-by-step explanation:

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If f(x)= 15x+7x and g(x)= x^2-5x, find (f+g)(x)

cupoosta [38]

Answer:

(f+g)(x) = x^2 +10x +7

Step-by-step explanation:

(f+g)(x) = f(x) +g(x) = (15x +7) +(x^2 -5x)

= x^2 +x(15 -5) +7

= x^2 +10x +7

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4 years ago

Aisha has $300 in her account. On average, she deposits $14 into her account, every day, for k days. Enter an expression to to c

MaRussiya [10]

Answer:

342

Step-by-step explanation

14+14+14 = 42

42 + 300 = 342

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3 years ago

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Vanyuwa [196]

With shells, the volume is given by

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3 years ago

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jeka94

Answer:

If I’m seeing it right I think it is 160units^3

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3 years ago

Please solve this question

Vesnalui [34]

Hello,

$\boxed{P(X = k) =( {}^{n} _{k}) \times p {}^{k} \times (1 - p) {}^{n - k} }$

$P(X= k) = ( {}^{12} _{6}) \times 0.51 {}^{6} \times (1 - 0.51) {}^{12 - 6}$

We have :

$( {}^{n} _{k}) = \frac{n!}{k!(n - k)!}$

$( {}^{12} _{6}) = \frac{12!}{6!(12 - 6)!} = \frac{12!}{6!6!} = \frac{12 \times 11 \times 10 \times ... \times 1}{2(6 \times 5 \times 4 \times... \times 1) } = \frac{12 \times 11 \times 10 \times 9 \times 8 \times 7 }{6 \times 5 \times 4 \times 3 \times 2 \times 1} = 924$

$P(X = k) = 924 \times 0.51 {}^{6} \times 0.49 {}^{6} = 0.2250$

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2 years ago