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3 years ago

Which of the following ratios does not describe a relationship between the balls?

Mathematics

1 answer:

Nikolay [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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Mary is converting 30 yards per hour into feet per hour. Which conversion factor should she use?

Sever21 [200]

It would be number 3.

5 0

3 years ago

-25^-1/2 with explanation please

slavikrds [6]

Answer:

The simplified value of $-25^{-\frac{1}{2}}$ is $-\frac{1}{5}$ .

Step-by-step explanation:

As the given expression is

$-25^{-\frac{1}{2}}$

Lets simplify this expression step by step

$-25^{-\frac{1}{2}}....[A]$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}$

$25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$

So, lets plug $25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$ in equation [A] i.e. $-25^{-\frac{1}{2}}....[A]$

$-25^{-\frac{1}{2}}....[A]$

$=-\frac{1}{25^{\frac{1}{2}}}$ ∵ $25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$

$=-\frac{1}{5}$ ∵ $25^{\frac{1}{2}}=5$

Therefore, the simplified value of $-25^{-\frac{1}{2}}$ is $-\frac{1}{5}$ .

Keywords: simplification, exponent rule

Learn more about expression simplification from brainly.com/question/13848834

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5 0

3 years ago

In a coin puzzle, guantity refers to the

alukav5142 [94]

Answer:

Number of coins.

Step-by-step explanation:

You mean quantity?

The amount of or number of items (in this case coins).

6 0

3 years ago

Read 2 more answers

Consider a political discussion group consisting of 5 Democrats, 8 Republicans, and 5 Independents. Suppose that two group mem

Levart [38]

Answer:

4/9 and 5/18

Step-by-step explanation:

Total: 5+8+5=18

the probability of selecting a Republican is 8/18=4/9

the probability of selecting a Democrat is 5/18

6 0

4 years ago

What is the length of ? 3 ft 4 ft 9 ft 18 ft

zmey [24]

Answer:
AC = 18 ft

Explanation:
There is a geometric theorem that states that:
" In a triangle, the line joining two midpoints of two sides is parallel to the third side and equals have its length"

Now, let's check the given triangle:
M is the midpoint of AB
N is the midpoint of BC

Based on the above theorem:
MN will be parallel to AC
and
length of MN = (1/2) * length of AC

We are given that:
length of MN = 9 ft
Therefore:
9 = (1/2) * length of AC
length of AC = 2 * 9 = 18 ft

Hope this jhelps :)

6 0

3 years ago

Read 2 more answers