Numbers like 10, 100, 1,000, and so on are called ___________.What is the correct term or number to complete the sentence.

Answers

Answer 1

Answer: The answer is powers of ten. A power of ten is 10 multiplied by itself the exponent number of times. For example, 10 = 10^1. 100 = 10 * 10 = 10^2. 1000 = 10 * 10 * 10 = 10^3. The number of zeros in the power of ten must match its exponent. For instance, 1000 has 3 zeros so the exponent is 3: 1000 = 10^3.Hope this helps. Let me know if you need additional help!

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the line l, passes through point A, {2,5} and has gradient - 1/2 find and equation of l, giving your in answer in the form y=mx+c

Answers

m=slope= gradient
c=y intercept

(x,y)
(2,5)
x=2
y=5 is one solution
and m=-1/2

input

5=-1/2(2)+c
5=-2/2+c
5=-1+c
add 1
6=c

equaton is y=-1/2x+6

Mercury Orbits the sun in 87 24/25 earth days. Venus Orbits the sun in 224 7/10 Earth days, and Mars Orbits the sun in 686 49/50 days. Write each mixed number as a decimal.

Answers

Mercury: 87 24/25
Venus 224 7/10
Mars 686 49/50

All we need to do is to convert fractions so they have a denominator of 10, 100, 1000 etc.

87 24/25 = 87 96/100
224 7/10 stays the same
686 49/50 = 686 98/100

Now we can easily convert them into decimals:

Mercury: 87.96
Venus: 224.7
Mars: 686.98

The correct answers are:

87.96; 224.7; 686.98.

Explanation:

In order to write these numbers as decimals, we need to convert the fractions to fractions with denominators of 10, 100, or 1000.

224 7/10 already has a denominator of 10; this makes it 224.7.

For 87 24/25, we can multiply the denominator by 4 to make 100. Doing that means we need to multiply the numerator by 4 as well:

87 (24*4)/(25*4) = 87 96/100 = 87.96

For 686 49/50, we can multiply the denominator by 2 to make 100. Doing that means we need to multiply the numerator by 2 as well:

686 (49*2)/(50*2) = 686 98/100 = 686.98

If there is 12 inches in a foot how many inches are in 7 feet

Answers

12 inches=1 ft

x inches=7ft

12*7=x

12*7=84

It would be 84 inches

Is there 2 square numbers that add up to 65

Answers

$1^(2) + 8^(2) =1+64=65$

Im thinking there are two ways....
8² +1² = 8 * 8 + 1 *1 = 64 + 1 = 65
7² + 4² = 7 * 7 + 4 * 4 = 49 + 16 = 65

72 = r 90 Whats R in this equation

Answers

rmemeber you can do anything to an equaiton as longn as you do it to both sides
also x times 1/x=1 since x/x=1
also x times 1=x

72=r90
divide both sides by 90
72/90=r
0.8=r

r=0.8

a bottle contains 20 fluid ounces of lotion and sells for $5.80. The 20-fluid-ounce bottle contains 125% of the lotion in the next smallest size, which sells for $5.12. Which is the better buy? Explain

Answers

here is a way to solve wihtout knowning the volume of the smaller bottle (which is 16oz, btw)

if 5.8 is 125% of the volume of the other one
find what it would cost for 100%
5.8=125% of volume
1.16=25% of volume
4.64

that contains the sameamount as theother one

4.64<5.12

the 20 oz bottle is the better buy

don't believe me?

20=125% of other
4=25% of other
16=100% of other

let's find the cost per ounce of lotion
5.8/20?5.12/16 where ? represents a relation symbol (=,> <)
0.29?0.32
0.29<0.32

20 oz bottle is the better buy

the 20 fluid ounce because you get more for .78 cents more

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