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3 years ago

Which of these is equivalent to 3^ -2?

Mathematics

1 answer:

neonofarm [45]3 years ago

3 0

I think the answer is c.

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2) You purchase a car using a $23,000 loan with a 4% simple interest rate. Suppose you pay the loan off after 5

Sedbober [7]

60 is the answer to this question

7 0

2 years ago

Read 2 more answers

Ryan is 4 1/2 ft. tall. He is 3 in. taller than his sister Lizzie. She is 3/4 of a foot taller than her sister Emma. How tall is

77julia77 [94]

Answer:

$3\frac{1}{12}$ ft tall

Step-by-step explanation:

We must follow the indications:

Ryan is 4 1/2 ft. tall.

Ryan = $4\frac{1}{12} ft$

He is 3 in. taller than his sister Lizzie. to find how tall is Lizzie we need to substract 3 inches from the height of Ryan, but we can only substract the quantities if they are in the same units.

Thus we convert the 3 inches to feet, since we 1 feet = 12 inches:

$\frac{1}{4} feet=3inches$

so the height of lizzie:

$4\frac{1}{12}ft-\frac{1}{4}ft\\ \\$

we convert the first mixed number to fraction by multiplying 4 by 12 and adding the numerator 1:

$4\frac{1}{12}=\frac{4*12+1}{12}=\frac{49}{12}$

the subtraction becomes:

$\frac{49}{12}ft-\frac{1}{4}ft\\ \\=\frac{49*4-12*1}{12*4}\\ \\=\frac{196-12}{48}\\\\=\frac{184}{48}\\ \\=\frac{46}{12} \\$

$=\frac{23}{6}$

Lizzie is 23/6 ft tall.

She is 3/4 of a foot taller than her sister Emma, thus we must substract 3/4 from the height of Lizzie to find the height of Emma:

$\frac{23}{6}ft-\frac{3}{4}ft\\ \\=\frac{23*4-6*3}{6*4}\\ \\=\frac{92-18}{24}\\ \\=\frac{74}{24}\\ \\=\frac{37}{12}\\ \\=3\frac{1}{12}$

Emma is $3\frac{1}{12}$ ft tall.

4 0

2 years ago

Need help please with negative numbers

mart [117]

What I like to do with negative numbers is count back from the positive to the negative here I can make a number line! :) think of it this way 0 is the middle of your positive and negative numbers it’s where they are coming together!

-5 -4 -3 -2 -1 0 1 2 3 4 5

————————————

Here #5 (on your paper)

8-11 so count back from 8 eleven times

8-11= -3

If u need anymore help I’m here :)

Ik negative & positive numbers are pretty tricky lol

Best of luck :))

4 0

2 years ago

Simplify. √36a^10b^2 6a^5 b^5 6a^5 b 6ab^5

Taya2010 [7]