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Furkat [3]
3 years ago
12

Expand and simplify: (x − 5y) (x + 3y)

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0
Answer = x^(2)-2xy-15y^(2)

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Gary bought an MP3 player at a 20% discount sale for $40. What was the original price of the MP3 player?
marta [7]
40*.20=8.00
40 - 8=32
answer32
hope you understand.
explain:]
40*.20=8
and second time i do ( - ) becouse they said 20% discount discount main is ( - )
so i do  ( - ) i think now you understand.
5 0
3 years ago
Marta wrote six and eighty hundredths. Nicky wrote six and eight tenths. Who wrote the greater number? explain
nataly862011 [7]
The numbers are both equal because, 6.80 is six and eight hundredths, and 6.8 is six and eight tenths. When writing decimals any zero added to the end of the number has no value, 8/10 as a fraction is equal to 80/100 if simplified, so Nicky and Marta wrote equal numbers. :)
6 0
3 years ago
Find the volume of th] cylinder. Round your answer to the nearest tenth if necessary. Use 3.14 for 1.
spayn [35]

Answer:197.8

The formula for a cylinder is 3.14*r^2*h but if you don't round to the nearest tenth the the answer is 197.82034.

Step-by-step explanation:Step one mutiply 3^2=9, Step two mutiply 3.14*

9=28.26, Step three mutiply 28.26*7=197.82.But if you round 197.82034 to the nearest tenth which is moving one decimal place to the right you'll will get 197.8.

6 0
3 years ago
377. Dawn wants to compare the volume of a basketball with the
olchik [2.2K]

Answer:

V = \frac{4}{3} \pi R^{3} and

v = \frac{4}{3} \pi r^{3}

Step-by-step explanation:

Dawn wants to compare the volume of a basketball with the  volume of a tennis ball.

Now, if the radius of the basketball is R and that of the tennis ball is r, then the formula that can be used to determine the volume of each ball will be

V = \frac{4}{3} \pi R^{3} and

v = \frac{4}{3} \pi r^{3}

Now, dividing V by v we can compare the volume of the basketball and the tennis ball. (Answer)

3 0
4 years ago
if you deposit $500 at an interest rate of 3% for four years, how much will you receive when you withdraw it from the bank?
Ray Of Light [21]
 1st year 500* 0.03 = 15+500=515
 2nd year 515*0.03=  15.45 + 515 = 530.45
 3rd year 530.45*0.03= 15.9135 + 530.45 = 546.3635
 4th year 546.3635 * 0.03 = 16.390905 + 546.3635 = 562.754405
562.754405
8 0
4 years ago
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