3 years ago

Are these questions done correctly?

1 answer:

6 0

For number 20 they are incorrect.
You must start with one number.
Ex: 4 (4) (4) (4) is 4 to the 3 power because their are three times it is multiplied.

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Ribbon sells for $3.75 per yard. Find the cost, in dollars, for 48 inches of ribbon.

Leto [7]

Answer:

4.9875

if rounding then 5 dollars

Step-by-step explanation:

7 0

3 years ago

The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

disa [49]

<span>Triangle is 180 degrees, so you will subtract 50 from 180 which will give you 130.</span>

8 0

2 years ago

What is the area of a circle, if it's radius is 2cm?

slega [8]

25.13cm^2 or 8pi. The radius of a circle is 2 x pi x r^2. R is the radius. 2 x pi x 2^2cm -> 2 x pi x 4cm -> 8cm x pi -> 25.13cm^2. Leaving the answer in terms of pi would be 8pi.

8 0

3 years ago

A rectangle measures 6 cm by 4 cm. Another rectangle with adjacent sides 8 cm and x cm is geometrically similar to it. Find the

Elis [28]

Answer:

5 1/3 or 5.33333333333333333333333333333333333333333333333333333

Step-by-step explanation:

to find the scale factor, you must divide the two equal sides.

$\frac{6}{8}$

which equals

$\frac{3}{4}$ or 0.75

Now, the way to get the value of x is to divide 4 by 3/4 0r 0.75

$\frac{4}{0.75}$

Which equals

5.333 repeating or 5 1/3

Hope this helps. If you have any follow-up questions, feel free to ask.

Have a great day! :)

6 0

3 years ago

Rob is saving to buy a new MP3 player. For every $14 he earns babysitting, he saves $5. On Saturday, Rob earned $84 babysitting.

Bond [772]

He saved 30 dollars through babysitting. My math is:

84 / 14 = 6

6 x 5 = 30

I hope this helps!

3 0

3 years ago