MATHEMATICS COLLEGE

Amy spent $22 on a magazine and fourerasers. If the magazine cost $6, then how
much was each eraser?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

First, 22-6=16, this isolates how much she spent on erasers alone

Then, 16/4=4, if she bought 4 erasers each one would have cost $4

Answer 2

Answer:

Step-by-step explanation:

5 dollars and 5 cents.

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Evaluate a2 + b2 + c2 for a = -5, b = -2, and c = 3.
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What is the absolute value of -6.8

Answers

Answer: 6.8

Step-by-step explanation:

absolute value turns the number into the positive value.

The correct answer is 6.8

Is this relationship proportional or not and give at least proof. Time: 1, 2, 3, 4, 5, 10 Pages: 65,130,195,260,325,650

Answers

A relationship is proportional if the ratio between the output and the input is constant:

$y=kx \iff (y)/(x) = k$

In your case, we have

$(65)/(1) = (130)/(2) = (195)/(3) = (260)/(4) = (325)/(5) = (650)/(10) = 65$

This means that it takes the reader one unit of time to read 65 pages. So, after 2 units of time, he reads 130 pages, and so on.

WILL GIVE BRAINLIEST IF CORRECT!!How many different 7-digit positive integers exist? (Note that we don't allow "7-digit" integers that start with 0, such as 0123456; this is actually a 6-digit integer.)

Answers

Answer:

There are 9,000,000 seven-digit positive integers.

Explanation:

For the first digit, we have 9 choices: 1, 2, 3, 4, 5, 6, 7, 8, 9.

For each remaining digit, we have 10 choices: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

Each choice is independent of the others. So, the number of total 7-digit positive integers is the product of all the numbers of choices for each digit.

hope it helps

need brainliest......

Since 0 cannot be put as the first digit, there are 9 choices for the first digit, and the next 6 digits have 10 choices. So, there are 9 × 10^6 = 9000,000 numbers.

- Use the unit circle to evaluate
the six trigonometric functions
of theta= 4pi

Answers

The six trigonometric functions, $\sin (\pi)/(4) =(1)/(√(2))$ , $\cos (\pi)/(4) =(1)/(√(2))$ , $\tan (\pi)/(4) =1$ , $\cot (\pi)/(4) =1$ , $\sec (\pi)/(4) =√(2)$ and $\csc (\pi)/(4) =√(2)$ .

Step-by-step explanation:

We have,

$(\pi)/(4)$

To write the six trigonometric functions = ?

$\sin (\pi)/(4) =(1)/(√(2))$

$\cos (\pi)/(4) =(1)/(√(2))$

$\tan (\pi)/(4) =1$

$\cot (\pi)/(4) =1$

$\sec (\pi)/(4) =√(2)$

$\csc (\pi)/(4) =√(2)$

∴ The six trigonometric functions, $\sin (\pi)/(4) =(1)/(√(2))$ , $\cos (\pi)/(4) =(1)/(√(2))$ , $\tan (\pi)/(4) =1$ , $\cot (\pi)/(4) =1$ , $\sec (\pi)/(4) =√(2)$ and $\csc (\pi)/(4) =√(2)$ .

Can someone please answer c. I’ve been trying for 30 mins and can’t understand it

Answers

Answer: 7

Step-by-step explanation:

For c, we are given this sum from 1 to 3 of $(n^2)/(2)$ . 1/2 is a constant , therefore, we can move it outside of the summation.

*I hope you can understand what I'm saying. I can't figure out how to type in summations into the equations section.

1/2∑₁³n²

This means you would multiply the sum of n² from 1 to 3 by 1/2.

We are told n=1 to n=3 so we would plug 1, 2, 3 into n.

1²=1

2²=4

3²=9

We would add them together since that is what the sum sign tells us to do.

1+4+9=14

Now that we know the sum, we multiply it with 1/2

14/2=7

Find the Greatest common factor of the numbers using lists of factors

8,12

Answers

The answer is 4 bc you can multiply 4 with both 8 and 12. I’m sorry but I’m bad at explaining but the answer is 4 :(

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Amy spent $22 on a magazine and fourerasers. If the magazine cost $6, then howmuch was each eraser?

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The six trigonometric functions, , ,, , and .

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Amy spent $22 on a magazine and fourerasers. If the magazine cost $6, then how
much was each eraser?

The six trigonometric functions, $\sin (\pi)/(4) =(1)/(√(2))$ , $\cos (\pi)/(4) =(1)/(√(2))$ , $\tan (\pi)/(4) =1$ , $\cot (\pi)/(4) =1$ , $\sec (\pi)/(4) =√(2)$ and $\csc (\pi)/(4) =√(2)$ .