I need help with three math (algebra) problems?

1 answer:

3 0

1.
A. (49-8)*2-16, 41*2-16, 82-16, 66, yep
B. 49-8*-14, 49+112, 161, nope
C. 7^(-16)-16, (1/(7^16))-16, nope
D. 49-16-16, 17, nope

A is answer

2.
2((a+b)²-b)
2((7+1)²-1)
2((8)²-1)
2(64-1)
2(63)
126
C is answer

4.
none of the options give the answer

You might be interested in

If a runner runs at a constant rate of 6 miles per hour how much time would it take for her to run 9 miles

Neko [114]

Answer:

1 1/2

Step-by-step explanation:

divide 9 by 6 (because its 6 miles per hour) you get 1 1/2. so it would be 1 1/2 hours or 1/5 hours

5 0

3 years ago

Read 2 more answers

Help pls!!

hodyreva [135]

Answer:

C) 33 meters

Step-by-step explanation:

In this question, we need to find the value of the variable "x".

To do this, we must use the Pythagorean theorem: a² + b² = c²

Plug in your values and solve:

56² + b² = 65²

3,136 + b² = 65²

3,136 + b² = 4,225

Subtract 3,136 from both sides.

b² = 1,089

To cancel out the exponent, we would square root both sides.

√b² = √1,089

b = 33

This means that C) 33 meters will be your answer.

3 0

3 years ago

Read 2 more answers

Every four years is a leap year. If a year is randomly chosen, what is the probability that it will NOT be a leap year?

Aloiza [94]

Answer:

3/4.

Step-by-step explanation:

There are 3 non leap years in every 4 year period so it s 3/4.

5 0

3 years ago

Anna is saving to buy some souvenirs on a family vacation. She has already saved $125, and she saves another $2 from her

FinnZ [79.3K]

We can assume that the y-intercept for this equation is 125, because that would be how much Anna already has saved before she begins saving money from her allowance. Then, we know that Anna adds $2 to her savings each day from the problem, so we know that the slope will be positive 2 then.

Equation:

y = 2x + 125

Graph:

Attached below

Hope this helps!! :)