MATHEMATICS MIDDLE SCHOOL

Select the quadratic that has roots x = 8 and x = -5.
What is the answer

Answers

Answer 1
Answer:

Answer:

x^2 - 3x - 40

Step-by-step explanation:

x = 8 and x = -5

x - 8 = 0 and x + 5 = 0

(x - 8)(x + 5)

x^2 + 5x - 8x - 40

x^2 - 3x - 40

Answer:  x^2 - 3x - 40

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How to round 4.66 to the nearest hundredth

Answers

To round it to the nearest hundreth, round the 6 to the nearest number. 1-4 means round to the lowest number in the chart. 6-10 means round to the nearest number above the current number. The answer would be 4.7

I have a bag of trail mix. One half of the bag is peanuts 1/4 of the bag is chocolate candies,1/4 of the bag is dried fruit. What is the probability that I will select a peanut?

Answers

50% or 1/2 or 1:2 would be your answer

Find the difference of 5063 and 3987 to the nearest thousand

Answers

"difference" means subtract so... 5063 - 3987 =  1076. Now since the question says get it to the nearest thousand it should be 1000. which is your answer.

the value of a company's stock changes by -$2.25 each day. After how many days will the value of the stock change by -$18?

Answers

8 days. -18รท-2.25= 8

Answer:

8 days

Step-by-step explanation:

Set up a fraction. Let "x" be the variable.

(-2.25)/(1)=-(18)/(x)

Step 1: Apply fraction cross multiply

\left(-2.25\right)x=-1\cdot \:18

Step 2: Simplify

-2.25x=-18

Step 3: Divide both sides by -2.25

(-2.25x)/(-2.25)=(-18)/(-2.25)

Step 4: Simplify

x=8

Which arrangement shows 27/5, 5.36, 5 3/5, and 33/6 in order from least to greatest?A. 5.36, 27/5 , 5 3/5 , 33/6

B. 27/5,5.36, 33/6, 5 3/5

C.5 3/5, 5.36, 27/5, 33/6

D.5.36, 27/5, 33/6, 5 3/5

Answers

To figure out these types of problems, you need to divide the numbers by each other, for example: 
3/4 = 3 divided by 4= 0.75
So, in this problem, it isn't A, because if you divide the order is 5.36, 5.4, 5.6, and 5.5
B is 5.4, 5.36... and the rest doesn't matter because you already know that it is not in the correct order.
Then C is 5.6, 5.36... and then, like B, the rest does not matter because it is obvious that it is not in order from least to greatest.

So, you can assume that your answer is D, and if you check, this is the case because the order of the numbers becomes: 5.36, 5.4, 5.5, and 5.6, which is in order from least to greatest.

Therefore, your answer is D. 
The easy way to find the answer is to convert them all to decimals so 27/5= 5.4, 5 3/5 = 5.6 and 33/6= 5.5

so the answer is D. 5.36, 27/5, 33/6, 5 3/5

A string of decorative lights is 28 feet long. The first light on the string is 16 inches from the plug. If the lights on the string are spaced 4 inches apart, how many lights are there on the string?

Answers

well if there is 28 feet, that would be (12x28) 336 inches,  and 16 inches between the plug and the first light, there would be only 320 inches left for lights. therefore, if there are 4 inches between each light, we divide 320 by 4.  the answer we get is 80. there are 80 lights.
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