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Aleksandr [31]
4 years ago
15

A sprinter started his race slowly and then increase his speed by 12.5 miles per hour to reach a top speed of 21 miles per hour

what was the sprinters speed before he increased his speed
Mathematics
1 answer:
IRINA_888 [86]4 years ago
8 0
21 mph - 12.5 mph = 8.5 mph
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Find the volume of the given solid​
ira [324]

Answer:

15,000cm^3

Step-by-step explanation:

Dividing the solid into 2;

Volume = Volume of A + Volume of B

Volume of Top prism (A) =25cm * 20cm * 10cm

Volume of Top prism (A) = 5000cm^3

Volume of bottom prism B = 20cm * 50 * 10

Volume of bottom prism B = = 10000cm^3

Volume of the figure = 5000 + 10000

Volume of the figure = 15,000cm^3

3 0
3 years ago
Which expression is equivalent to StartFraction StartRoot 2 EndRoot Over RootIndex 3 StartRoot 2 EndRoot EndFraction?.
miskamm [114]

The expression is equivalent to \sqrt[6]{2}.

<h2>Given that</h2>

Expression; \dfrac{\sqrt{2}}{\sqrt[3]{2} }

<h3>We have to determine</h3>

The equivalent expression to the given expression.

<h3>According to the question</h3>

To determine the equivalent relation following all the steps given below.

Expression; \dfrac{\sqrt{2}}{\sqrt[3]{2} }

The equivalent expression is;

= \dfrac{\sqrt{2}}{\sqrt[3]{2} }\\\\= \dfrac{2^{\frac{1}{2}}}{2^{\frac{1}{3}}}\\\\ = 2^{\frac{1}{2}-\frac{1}{3}}\\\\ = 2 ^{\frac{3-2}{6}}\\\\= 2^{\frac{1}{6}}\\\\= \sqrt[6]{2}

Hence, the expression is equivalent to \sqrt[6]{2}.

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7 0
2 years ago
Find length,width and area<br><br>plus bonus<br><br>please show work ​
stira [4]

A square with the same perimeter as a rectangle will have larger area.

However, 42 is not divisible by 4, so we can do 10 by 11.

Length = 11, Width = 10, Area = 110

42 / 4 = 10.5

Length and Width = 10.5, Area = 110.25

3 0
3 years ago
Gustavo pays $12.64 to download 8 songs. Each song costs him the same amount. Estimate the amount he pays to download each song.
prisoha [69]

Answer:

1.58

Step-by-step explanation:

The answer should be 1.58 because 12.64 divided by 8 is 1.58

4 0
3 years ago
Read 2 more answers
After writing part of his novel, Thomas is now writing 16 pages per week. After 4 weeks, he has written 85 pages. Assume the rel
d1i1m1o1n [39]

The initial value is 21 and rate of change is 16 pages per week

<em><u>Solution:</u></em>

Given that After writing part of his novel, Thomas is now writing 16 pages per week

After 4 weeks, he has written 85 pages.

Given that assume the relationship to be linear

Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + c

y = mx + c

where "y" is the number of pages written after 4 weeks

x = 4 weeks and m = 16 pages

Therefore,

85 = 16(4) + c

85 = 64 + c

c = 85 - 64

c = 21

Therefore, initial value is 21 and rate of change is 16 pages per week

7 0
3 years ago
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