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Alexxandr [17]
3 years ago
15

Are these questions done correctly?

Mathematics
1 answer:
morpeh [17]3 years ago
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
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