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4 years ago

8

There are 12 girls and 8 boys in Ms. Sander’s class. Each day, she randomly asks one student to take attendance. In 180 school d

ays, which is the best prediction for the number of times that the student will be a girl?

1 answer:

Virty [35]4 years ago

6 0

12 x times 8 equals 96 and 180 subtracted by 96 equals 84

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Which expression is equivalent to 3i(9i +15)?<br> - 45 +9i<br> -27 + 452<br> 27 +452<br> 2722 + 452

vaieri [72.5K]

Answer: B. -27+452i

Step-by-step explanation: Simplify the real and imaginary parts of the expression.

Hope this helps you out.

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3 years ago

Write the function in <br> standard form?<br> f(x) = 5(x + 3)2 - 3

deff fn [24]

Sorry If that’s not the answer!

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3 years ago

Why is 5x4 greater than 5x1/4

Mashcka [7]

<span>5x4 = 20
</span><span>5x1/4 = 5/4 or = 1.25

so 20 > 1.25 then </span><span>5x4 is greater than 5x1/4</span>

4 0

3 years ago

Read 2 more answers

Rewrite in simplest radical form 1/x^-3/6

VladimirAG [237]

$\bf a^{\frac{{ n}}{{ m}}} \implies \sqrt[{ m}]{a^{ n}} \qquad \qquad

\sqrt[{ m}]{a^{ n}}\implies a^{\frac{{ n}}{{ m}}}
\\\quad \\
% rational negative exponent
a^{-\frac{{ n}}{{ m}}} =
 \cfrac{1}{a^{\frac{{ n}}{{ m}}}} \implies \cfrac{1}{\sqrt[{ m}]{a^{ n}}}
\\ \quad \\ \quad \\

% radical denominator
\cfrac{1}{\sqrt[{ m}]{a^{ n}}}= \cfrac{1}{a^{\frac{{ n}}{{ m}}}}\implies a^{-\frac{{ n}}{{ m}}}\qquad thus\\
----------------------------\\

\\ \quad \\

$ $\bf 
\\ \quad \\

\cfrac{1}{x^{-\frac{3}{6}}}\implies \cfrac{1}{x^{-\frac{1}{2}}}\implies \cfrac{1}{\frac{1}{x\frac{1}{2}}}\implies \cfrac{1}{1}\cdot \cfrac{x^{\frac{1}{2}}}{1}
\\ \quad \\
x^{\frac{1}{2}}\implies \sqrt{x}$

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4 years ago

Jayme was almost finished running the Los Angeles Marathon. So far, she has ran 25 miles in 6 hours. At the same rate, how long

amid [387]

Answer:

24 hours because if she travels 25 miles in 6 hours and you multiply 25 by 4 to get 100, you need to multiply 6 by 4 in order for how long it takes her to run 100 miles. 6 X 4 = 24 hours

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4 years ago