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prohojiy [21]
3 years ago
7

7 times a number is 8 less than the square of that number. Find the negative solution.

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

Step-by-step explanation:

x^2-8x+x-8

x(x-8)+1(x-8)

(x+1)(x-8)

The negative number is x=-1

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What is the approximate circumference of the circle? Use 22/7 for pi. Round to the nearest hundredth.
Tanzania [10]

Answer:

B) 4.09

Step-by-step explanation:

C= 2πr

3 0
3 years ago
If the volume of the gas increased from 600 to 800 in.^3, by how much does the pressure change?​
lukranit [14]

Answer:

It decreases by 7.5 psi

Step-by-step explanation:

:)

4 0
3 years ago
Read 2 more answers
PLEASE HELP FAST ILL MARK YOU BRAINLYEST
Alborosie

Answer:

look at explanation (I go down the first column of scenarios and then move on to the right column)

Step-by-step explanation:

1) The first one will be same as original because the decrease and increase are the same, and happen right after each other so you get the same amount

2) Second one you get greater than original. You're doubling the initial value, and then decreasing by a smaller percentage, so you still get greater than your initial value

3) Third you get greater than original. You're adding 50% of the initial value, and decreasing by 33.5% of the new value, which will still give you more than the original

4) Fourth, you get greater than original. You're adding 60% of the initial value, and then decreasing by 40% of the new value, which will still give you greater than the initial value

5) Fifth you get less than the original. You're decreasing by 75%, and then adding 50% of the new value, which still gives you less than the initial value

4 0
3 years ago
Find the area of the trapezoid<br><br> A. 168 in^2<br> B. 94.5 ft^2 <br> C. 72 ft^2<br> D. 84 ft^2
Rainbow [258]

Answer:

D. 84 ft^2

Step-by-step explanation:

Formula for area of a trapezoid:

A=\frac{a+b}{2} h

where a and b = bases and h = height

The trapezoid shown has the following dimensions

base 1 = 9ft

base 2 = 12ft

height = 8ft

Using the following information we plug in the values into the formula

A=\frac{9+12}{2} \\9+12=21\\\frac{21}{2} =10.5\\10.5*8=84

Hence, the area of the trapezoid is 84ft² and your answer is D

4 0
3 years ago
At a gymnastics competition, Joey scored 9.4, 9.7, 9.9, and 9.8. Carlos scored 9.5, 9.2, 9.7, and 9.6. Who had the greater avera
8090 [49]
You got add all the numbers up and divide it by how many numbers there are to get the average.
9.4 +9.7 + 9.9 + 9.8 = 38.8 divided by 4 =9.7 is Joey's average.
9.5 +9.2 +9.7 +9.6 =38 divided by 4 = 9.5 is Carlos' average.
Joey has more average by 0.2.
5 0
3 years ago
Read 2 more answers
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