2 years ago

What does -2(-3)(-4) equal??

Mathematics

1 answer:

dolphi86 [110]2 years ago

8 0

The answer is-24 so fun lol

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3 years ago

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You measure 33 backpacks' weights, and find they have a mean weight of 36 ounces. Assume the population standard deviation is 12

saul85 [17]

Answer:

$E=3.4363$

Step-by-step explanation:

#Given a significance level of $\alpha=1-CI=1-0.90=0.1$ and

$\bar x=36, \ \sigma=12.1 \ n=41,$ the critical value is, $z_\alpha_/_2=z_\alpha_/_0_._0_5=1.645$

#the margin of error can then be calculated as:

$E=z_\alpha_/_2\times\frac{\sigma}{\sqrt n}=1.645\times \frac{12.1}{\sqrt 33}\\\approx 3.4363$

Hence the margin of error is 3.4363

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2 years ago

Divide: x^10/x^4. thank you very much

nata0808 [166]

Simple,

you have $\frac{ x^{10} }{ x^{4} }$

This really means that you have...

$\frac{x*x*x*x*x*x*x*x*x*x}{x*x*x*x}$

just cancel out the x's that you have, it's simple...

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Thus, your answer.

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3 years ago

PLEASE ANSWER + BRAINLIEST!!

Gelneren [198K]

5x = x^2 + 4
x^2 - 5x + 4 = 0
(x - 4)(x - 1) = 0

x = 4, 1

(x + 6)^2 = 100
x + 6 = +/1 sqrt100
x + 6 = +/- 10

x = 4, -16

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3 years ago

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