Can somebody explain how to do this quickly. Already know how to solve it but it takes me a long time :(

Factor completely 7x²-9x-10

Shtirlitz [24]

Answer:

First, assign a value to x. x will be 2 in this case.

Next, multiply x by itself, because that is what exponent 2, or squared, means. 2 x 2 = 4

Now, multiply 4 by 7. 4 x 7 = 28

Next, find the value of 9x.

The value of 9x will be 9 times a number, x, also known as 2 in this scenario. 9 x 2 = 18

Then, subtract 28 from 18. 28 - 18 = 10

Lastly, subtract 10. 10 - 10 = 0

Therefore,

The answer is 0. Product may vary depending on value assigned to x.

5 0

2 years ago

Read 2 more answers

You are hired to work at quickie-mart and will be paid $9.50 per hour 1. Write an income function that describes the amount of m

zzz [600]

Answer:

f(x)=nx

or

f(x)=9.50x

Step-by-step explanation:

Let x be the amount of hours and n be the hourly rate (9.50).

$f(x)=nx$

or if you prefer to use 9.50 instead of n, the function would be:

$f(x)=9.50x$

3 0

2 years ago

How to divide 6,875 by .025

Leokris [45]

Answer= 285000
How to= the number you are dividing by has a decimal move the decimal point all the way to the right counting the number of places you’ve moved it to. Then move the decimal point in the number you’re dividing the same number of places to the right

5 0

3 years ago

2.2 The following data show the distances (in miles) from the homes of off-campus statistics students to the college. Create a s

Liula [17]

Answer:

Step-by-step explanation:

From the given set of data,

Stem-leaf plot will be,

Stem Leaf

0 5 7

1 1 2 2 3 3 5 5 7 7 8 9

2 0 2 5 6 8 8 8

3 5 8

4 4 8 9

5 2 5 7 8

6

7

8 0

Key for the given stem and leaf plot → 0 | 5 = 0.5

8 0

2 years ago

Help plz can u willl make u brainliest

Tcecarenko [31]

Work and Answers for First Page:

1.

A: 400ml for €2.00. A: 400/2 = 200ml per €1

B: 1500ml for €5.00. B: 1500/5 = 300ml per €1

For the first set, choice B is the best value.

2.

A: 200ml for €1.50. A: 200/1.5 = 133.33ml per €1

B: 500ml for €8. B: 500/8 = 62.5ml per €1

For the second set, choice A is the best value.

3.

A: 1000ml for €4.50. A: 1000/4.5 = 222.22ml per €1

B: 1500ml for €5.80. B: 1500/5.8 = 258.62ml per €1

For the third set, choice B is the best value.

Work and Answers for Second Page:

1.

200g for €3.00: 200/3 = 66.66

2kg ---> 2000g for €5.00: 2000/5 = 400

For this set, B is the better value.

2.

700g for €4.00: 700/4 = 175

3.4kg ---> 3400g for €7.00: 485.71

B is the better value.

3.

500g for €2.80: 500/2.8 = 178.57

3.8kg ---> 3800g for €7.00: 3800/7 = 542.85

B is the better value.

4.

500g for €4.80: 500/4.8 = 104.16

1.8 --> 1800g for €7.50: 1800/7.5 = 240

B is the better value.

3 0

3 years ago