Okay, so let's go over multiplying negative numbers. A positive times a positive is a positive, right? But a negative times a negative is also a positive. Only a negative times a positive (or a positive times a negative) gives you a negative number. So, we know that one of our 2 numbers in this question must be negative; the other must be positive.
Let's now take a look at the factors of -147, starting with the positives. Obviously, -147 and 1 are factors: -147 * 1 = -147. What other factors of -147 are there?
What about 7? Try it: -147 / 7 = -21. So here are two factors: -21, and 7. They multiply to -147. Do they add up to -14? Let's see: -21+7 = 7+(-21) = 7-21= -14. Yup, that works!
Answer: -21 and 7
Answer:
Step-by-step explanation:
let x be the length of third side.
10-5<x<10+5
or 5<x<15
so third side is between 5 and 15 .
The interquartile range is from Q1 to Q3 and to get this you have to subtract Q2 by Q3. The 10 units represent that only 10 units are fit in the given range.
Answer:
Step-by-step explanation:
Gift bag is shaped in a rectangular prism.
<em> rectangular volume: length * width * height</em>
( 2w + 4 ) ( w ) ( 18 - w ) = 1152
( 2w² + 4w ) ( 18 - w ) = 1152
-2w³+32w² +72w = 1152
-2w³+32w² +72w - 1152 = 0
w = 16 , -6 , 6
w = 16 , 6
- length = ( 2w + 4 ) = 36 inch , 16 inch
- width = ( w ) = 16 inch , 6 inch
- height = ( 18 - w ) = 2 inch , 12 inch
Answer:
300 cm
Step-by-step explanation:
20 cm times 20 cm for the area of the whole rectangle.
Then you do 10 cm times 10 cm for the area of the inner rectangle.
Lastly you subtract the area of the inner rectangles from the whole rectangle itself to get 300 cm which is the area of the shaded region.
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