How would I find the area?

Answers

Answer 1

Answer: A=1/2<a+b>×h
=1/2<10+17>×10
=1/2<27>×10
=1/2×27×10
=135m²

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Alan deposited $300 into a savings account. At the end of the first year the amount of money in the account had increased to $336. At the end of the second year he had $420. Find a percent increase in the amount of money in the savings account at the end of the first year.
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How do I write 360,556 in expanded form

Answers

$360.556=3*100.000+6*10.000+5*100+5*10+6$

300,000+60,000+500+50+6

A small bar of gold is a rectangular prism that measures 40 mm. by 25 mm. by 2 mm. one cubic mm. of gold weights about 0.0005 ounces. find the volume in cubic mm. and the weight in ounces of this small bar of gold.

Answers

Volume = length times width times height
Volume = 40 mm times 25 mm times 2mm
Volume = 2000 cubic mm (If you want to write it in a different unit, 2 cubic meters)
One cubic mm = 0.0005 ounces
2000 cubic mm = weight of one cubic mm times 2000
2000 cubic mm = 0.0005 times 2000
2000 cubic mm weighs 1 ounce

Kofi estimated that he would run a total of 10 km in 1 h. In 1 h, he actually ran 46 times around a track 0.25 km long, going a total distance of 11.5 km.What was the percent error in Kofi’s estimate? Round to the nearest tenth of a percent, if necessary.

A.
1.5%

B.
5%

C.
13%

D.
23%

Answers

The equation to find percent error is

$(actual-theoretical)/(theoretical)*100$

where actual is the value that actually came out (in this case, 11.5 km) and theoretical is the value that was supposed to come out (in this case, 10 km). Just plug in the numbers and simplify.

$(actual-theoretical)/(theoretical)*100\n\n(11.5-10)/(10)*100=(1.5)/(10)*100=15\%\ error$

So, the true answer would be 15%. Apparently, the question you're asking takes 11.5 as the theoretical and the 10 as the actual (which I personally disagree with)

If you plugged in the numbers that way, the answer comes out to 13.04%. So, the correct answer for your answer choices is c. 13%

Joseph had a quarter of a cookie Ellen had half of a different cookie the piece Joseph had was larger how would Ellen's peace be smaller

Answers

Joseph's cookie must have had a larger diameter. Diameter is the line all the way across the circle. The diameter must have been at least 2 times larger that Ellen's.

Because a quarter is larger then a half

A bullet travels at 850m/s. How long will it take a bullet to go 1km

Answers

(1 km x 1,000m) ÷ 850 m/s = 1.18 s

What is standard form for 600,000 30,000 2000 700 70

Answers

In standard form it will be 632,770.

632,770 is the correcet answer because if you put the number together(add them) you get 632,770

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