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1 year ago

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Issaiah Jones Unit Rate, Reasoning Down Dec 06, 7:36:45 PM Watch help video HII Julian earned $437.00 at his job when he worked

for 19 hour he earn each hour

1 answer:

olga2289 [7]1 year ago

4 0

EXPLANATION

Let's see the facts:

Julian Earns--> $437.00

Worked--> 19 hours

Unit rate=

$Unit_{}-rate=\frac{437\text{ dollars}}{19\text{ hours}}=23\text{ \$/h}$

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AysviL [449]

As the mean is E[X] =150 and $\sigma$ = 30, using the normal distribution to get the answer is just using Z. So, what we need is P(X<180).

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3 years ago

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Let x is the interest rate

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3 years ago

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<u>Answer: </u>

Sum of the roots of the polynomial $x^{3}+2 x^{2}-11 x-12 \text { is }-2$

<u>Solution:</u>

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From question given that,

$x^{3}+2 x^{2}-11 x-12$ --- (3)

On comparing equation (1) and (3), we get a = 1, b = 2, c = -11 and d = -12

Hence the sum of roots using eqn 2 is given as,

= $\frac{-2}{1}$

= -2

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