Mathematics College

Please help me with this question? ​

Please Help Me With This Question?

Answers

Answer 1

Answer:

Step-by-step explanation:

The answer is A

If it's not then i'm sorry

Answer 2

Answer:

None of the above

Step-by-step explanation:

A. b ≠ 0

B. Solve for b:

-7/(2 b) = (2 b)/7

Cross multiply:

-49 = 4 b^2

-49 = 4 b^2 is equivalent to 4 b^2 = -49:

4 b^2 = -49

Divide both sides by 4:

b^2 = -49/4

Take the square root of both sides:

Answer: b = (7 i)/2 or b = -(7 i)/2

Related Questions

Which equation represents the line that passes through points (1, –5) and (3, –17)?​

Answers

Answer:

y=-6x+1

Step-by-step explanation:

If you have a line that passes through the points (1, -5) and (3, -17), the equation of this line will be y=-6x+1. For verification, -6+1=-5, so the first point is true, and -18+1=-17, so the second point is true as well.

Hopefully the answer is correct and the explanation helps!

Answer:

B

Step-by-step explanation:

Please help what is -3/20 x -6

Answers

Answer:

0.9 im pretty sure

Step-by-step explanation:

The cost of a pair of shoes was reduced from $60 to $45.

By what percent did the cost of the pair of shoes decrease?


A 2.5%

B 25%

C 30%

D 35%

Answers

Answer:

B. 25%

Step-by-step explanation:

25 percent of 60 would be 15, then if you subtract 15 from 60, you end up with 45, meaning that 25 percent was subtracted.

The percentage is the ratio of change with respect to the original thus cost of a pair of shoes has been reduced by 25% thus option (B) will be correct.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The initial cost of a pair of shoes = $60

Final cost of a pair of shoes = $45

Change in cost = 60 - 45 = 15

The percentage change = change / initial value

Percentage = 15/60

⇒ 0.25 × 100 = 25%

Hence "The cost of a pair of shoes has been reduced by 25%".

For more about the percentage,

brainly.com/question/13450942

#SPJ5

A waterfall is n times the height of its picture on a postcard.
Which equation represents the height, y, of the waterfall if
the picture is 6 cm tall?
A y = 6+n
y = 6+n
y = 6n
y=n-6

Answers

Answer: y=6n

Step-by-step explanation:

use point slope form to write an equation of the line with the given slope that passes through the given point.

Answers

Answer:

A. y - 0 = 2 ( x + 2 )

Step-by-step explanation:

First you have to isolate y, by using A, the 0 can simply be forgotten about. Next, you must expand the equation, thus with 2 ( x + 2 ), it expands to:

y = 2x + 4

With this in mind, the b value is 4, and with a slope of 2, you can see that the equation eventually crosses the y-axis at 4.

I need help really quickly with this one!

Answers

Answer: A (y = 1)

Step-by-step explanation:

when dividing, dividing by 0 equals an undefined fraction, therefore, if y was equal to 1, it would cancel out the y - 1, making it 0. I hope that's right :0

PLEASE I WILL MARK BRAINLIEST

Answers

Answer:

16 times

Step-by-step explanation:

i could give an explanation if needed

Which equation represents the relation that is shown in the graph?

Cost of Buying Comic Books
On a coordinate plane, a graph titled Cost of Buying Comic Books has number of issues on the x-axis and total cost on the y-axis. A line goes through points (0, 0), (1, 3.5), (2, 7).

y = x + 2/7
y = x + 7/2
y = 2/7 x
y = 7/2x

Answers

Answer:

It is D

Step-by-step explanation:

Im like 95 percent sure

Answer:

D

Step-by-step explanation:

Took the test

What is the solution of z + 5 = 6

Answers

Answer:

1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

z + 5 = 6

collecting Like Terms

(Alphabet On the Left hand , Numbers on the Right hand)

z = 6 - 5

while A Poaitive number Crosses Equality Sign it Chnages Sign

z = 1

At the start of a soccer game, the referee flips a coin to determine which team gets the ball first. The referee making
the calls for your upcoming game has seen the last 5 coin flips come up tails. The team captain plans to call heads
during the coin flip because he says it is long overdue.
Is your friend's reasoning correct?
O Yes, the coin flip is more likely to come up heads in order for the probability of heads to get back to 0.5.
No, it is highly unlikely to get 5 tails in a row by chance alone, so the friend should continue to go with tails. This
referee must be using an unfair coin.
O No, the probability of getting heads or tails is 0.5, regardless of the outcomes of the previous flips.
Yes, after so many tails in a row, the coin is due to show heads.

Answers

Answer: The answer is C on Edge 2020

Step-by-step explanation:

Answer:

(C) No, the probability of getting heads or tails is 0.5, regardless of the outcomes of the previous flips.

Is correct

ED2021

5(r-10)=51 what is r equal to?

Answers

Answer:

r=20.2

Step-by-step explanation:

write 9.57 in word from

Answers

Answer:

Nine Point Five Seven....

Step-by-step explanation:

Answer: nine and fifty-seven hundredths

Step-by-step explanation: the numbers to the right of the decimal ends with a ths.

2.72981366 rounded to nearest hundredth

Answers

Answer:

I would say 2.73 or 2.72 l can never remember which it is

Step-by-step explanation:

Sorry if it’s wrong!!!

Answer:

2.73

Step-by-step explanation:

A 12-ounce sports drink costs 0.96 and a 16-ounce sports drink costs $1.12. Which size is the best
buy? How much cheaper is it? Ratios

Answers

Answer:

It is better to buy the 16-ounce drink and it is 0.01 cent cheaper

Step-by-step explanation:

We have to find out how much each sports drinks cost per ounce.

0.96 ÷ 12 = 0.08 per ounce

1.12 ÷ 16 = 0.07 per ounce

It is better to buy the 16-ounce drink and it is 0.01 cent cheaper

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Sample A has a mean of M = 6. Sample B has a mean of M = 10. When the two samples are combined, the mean of the combined group is M = 9. Which of the following is the most accurate description for the two sample sizes?


The samples are the same size.

Sample A is much bigger than Sample B.

There is not enough information provided to determine this.

Sample B is much bigger than Sample A.

Answers

Answer:

Sample B is much bigger than Sample A

Step-by-step explanation:

It is because when seeing sample B alone we can see it has a larger mean than of Sample A. Mean is greater when the values we are using are of bigger value. Since Sample B has bigger values in it so it also a has bigger mean compared to Sample A which has a smaller mean (smaller values in it)

4.
Which of the following lists is ordered from least to greatest?
1-1.51, -2,0
2 3
5 4
0-2
2 3
-2, -1.5, 0,
5'4.
32
-2, -1.5, 0,
4' 5
2 3
-1.5, -2,0
5'4

Answers

Answer:

2 3

2 3

-2 - 1.5 0

4 5

Step-by-step explanation:

-10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 5 6 7 8 9 1 0

Answer is 23 23 0 -2

The circumference of a circle can be found using the formula C = 2tr.​

Answers

Answer:

r = c/2pi

Step-by-step explanation:

Dan’s number is three times more than Michael’s. The sum of their numbers is 48. What are their numbers?

Answers

Answer:

michael's number is 12, therefore Dan's is 36.

Step-by-step explanation:

48= michael's number+ 3 times Michael's number

48= m+3m

48= 4m

48÷4= 12 = michael's number

since Dan's is 3 times Michael's, his number is 36.

Answer: Michale's number is 12 and Dan's is 36

Step-by-step explanation:

Using ratios you can create 3:1 which is Dan's ratio to Michale.

You add 3 and 1, which gives you 4.

Divide 48 by 4, which gives you 12.

Michale's part of the ratio is 12 as he has three times less than Dan.

Which concludes that Dan has 36 and Michale has 12.

The density curve below represents the number of hours that Mrs. Schultz's students spent studying for
their most recent test.
y
1
2
3
4 5 6
Which of the following statements are true?

Answers

Answer:

the mean of the study times is greater than the median

Step-by-step explanation:

A car gets 27 mile per gallon of gas. How far will it go on 12 gallons?​

Answers

Answer:

324

Step-by-step explanation:

Turner's bookshelf has 6 shelves. Each shelf has 17 books. How many books are on the bookshelf?

Answers

Answer:

102 books

Step-by-step explanation:

Answer:

102 Books

Step-by-step explanation:

Multiply 6 by 17

10 5/18 - 8 5/6
plzzzzzz helpppppp

Answers

Answer:

-5/9

Step-by-step explanation:

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(518×11)−(56×33)=?

Complete the multiplication and the equation becomes

518−1518=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

5−1518=−1018

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 10 and 18 using

GCF(10,18) = 2

−10÷218÷2=−59

Therefore:

518−56=−59

The owner of Sandy’s Boat House advertises the cost to rent a canoe is $15 per hour for trips on the Red Cedar River. He is also willing to adjust the $15 per hour if a customer rents for only a part of an hour.

The manager suggests another deal for customers. She uses the equation cmanager = 0.15t + 2.50 to find the charge c in dollars for renting a canoe for t minutes.



Which option would you choose, the manager’s equation or the owner’s cost of $15 per hour? Explain.

Answers

Answer:

1 dollar

Step-by-step explanation:

If he charges 15 dollars an hour for a canoe, that means that if she rents for 0.15 hours she pays 1 dollar. Hope this helps :)

Last year the original prices of Emma's and Sophie's phones were $560 and $640. Now the prices reduced in ratios 7:6 and 4:3 respectively. What is the difference of the current prices?

Answers

it’s gonna be 3:3 which is equal to 1100 good job

A box of 151515 cookies costs \$9$9dollar sign, 9.
What is the cost for 111 cookie?

Answers

Answer:

what they said

Step-by-step explanation:

cause i said so

Answer:

its 0.6

its really is :>>>>>>>

Money that is collecting interest in a bank account doubles in value every 8
years.
When the account was opened, it had 8, or 23 dollars in it. After 32 years, the
account balance has doubled 4 times, increasing by a factor of 24,
It now has a balance of 23. 24. Expressed as a power, how much money, in
dollars, is in the account after 32 years?
A. 24
d
B. 27
C. 212
D. 47

Answers

Answer:

2 to the power of 7

Step-by-step explanation:

add the powers when it is multiplication

Heather bought a shirt on sale for 45% off the regular price of $22.60. What was the sale price of the shirt not including tax?

Answers

Hi! I believe your answer is $10.17 because 45% of 22.60 is 10.17. I hope this helps you! Good luck and have a great day. ❤️ (Stream "Heather" by Conan Gray!)

What is the weight in pounds of the tank, as in the above case, if the tank itself weighs 20 lbs per ft of height? A. 63,424 lbs B. 42,241 lbs C. 16,151 lbs D. 10,605 lbs.

Answers

The answer should be C I’m pretty sure maybe

A plane took 1 hour and 10 minutes to fly from Riyadh to Jeddah.
The plane arrived in Jeddah at 23 05.
At what time did the plane depart from Riyadh?

Answers

Answer:

21:55

Step-by-step explanation:

First u have to take 23:05 and subtract 10 minutes which gives u 22:55 then u have to subtract a 1 hour that will give you 21:55 as your answer.

3. Which size package of pasta shown in the
table has the lowest unit price?
A. 3 oz
C. 16 oz
B. 8 oz
D. 32 oz
Size (oz) Cost ($)
3
0.99
8
2.59
16
5.69
32
11.89
​

Answers

Answer:D

Step-by-step explanation:

I divided all of them and d was the lowest unit rate

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