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3 years ago

Which one of the following statements expresses a true proportion?

Mathematics

1 answer:

beks73 [17]3 years ago

6 0

Answer: B
Because 3x4=12 and 5x4=20

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Rewrite the expression in z to the n power. The expression I was given is: 1 over z to the negative 1 half power.

12345 [234]

Answer:

The equivalent expression is;

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

Step-by-step explanation:

The given expression is:

$\frac{1}{z^{-\frac{1}{2} }}$

Recall that:

$\frac{1}{a^{-m}}=a^m$

In our case, $a=z$ and $m=\frac{1}{2}$ .

We use this property of exponent to obtain;

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

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3 years ago

True or False: The proportion of the population that has certain characteristics is the same as the probability that a randomly

atroni [7]

Answer:

True

Step-by-step explanation:

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3 years ago

What is the solutions for 5x+7y<=-3??

dexar [7]

Do you know how to graph by finding the x and y intercepts? Or can you solve for y so your equation looks like y=mx+b?

7 0

3 years ago

Read 2 more answers

What must an animal do in order for cellular respiration to begin

Wittaler [7]

Answer:

An animal must consume food, inhale oxygen, and drink water to begin cellular respiration

Step-by-step explanation:

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3 years ago

There are 750 spectators in the stadium, ok which 420 are women and the rest are men A. What percent of the spectators are women

Ugo [173]

$\text{To find the percentage of women, we need to use the information given to us}\\\\\text{There are 750 spectators, 420 of them are women}\\\\\text{Find the percent of women by dividing 420 by 750}\\\\420\div750=0.56\\\\\text{This means that 56\% of the spectators are women}\\\\\text{Since we know the rest of the spectators are men, we would subtract 100}\\\text{by 56 to find the percentage of men}\\\\100-56=44\\\\\text{This means that 44\% of spectators were men}$

$\boxed{\text{56\% are women and 44\% are men}}$

3 0

3 years ago