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gavmur [86]
3 years ago
10

Up for a Brain Game?

Mathematics
2 answers:
kotegsom [21]3 years ago
8 0

Answer:

-x, x, 4x, 0.2x, (1/4)x

Serhud [2]3 years ago
4 0

Answer:

2x , -3x2 , -x y , 1/x

Step-by-step explanation:

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Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 15-inch long p
Artist 52 [7]

Answer:

The length is 5 inches.

Step-by-step explanation:

9/3=15/?

If you divide 9 by 3, you get 3 if you compare things you have to do the same on the other 'side'. So you do 15 divided by 3, the answer is 5.

7 0
3 years ago
One of the most fiercely debated topics in sports is the hot hand theory. The hot hand theory says that success breeds success.
zubka84 [21]

Answer:

Step-by-step explanation:

The "hot hand" is the notion where people believe that after a string of successes, an individual or entity is more likely to have continued success. Psychologists believe that the hot hand is a fallacy that stems from the representative heuristic, as identified by behavioral economics.

3 0
3 years ago
Read 2 more answers
Mindy's dog, Rex, weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?
nadya68 [22]

Answer:

15%

Step-by-step explanation:

To find the percent increase, use the equation:

percent of increase=<u>amount of increase</u>

                                     original amount

The amount of increase is 92-80 = 12.  The original amount of 80; this gives us

12/80 = 0.15 = 15%

5 0
3 years ago
What are the terms and coefficients of the following expression?<br> -60 + 2p - 8z
guapka [62]

Answer:

2 (p - 4 z - 30)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The area of a circle varies directly as the square of its radius. A circle with radius 2 in. Has area 12.568 in.^2 . What is the
Dafna11 [192]

Answer:

A_2=128.69\ in^2

Step-by-step explanation:

The area of a circle varies directly as the square of its radius.

A=\pi r^2

If r₁ = 2in, A₁ = 12.568 in₂, r₂ = 6.4 in, A₂ = ?

ATQ,

\dfrac{A_1}{A_2}=\dfrac{r_1^2}{r_2^2}\\\\A_2=\dfrac{A_1r_2^2}{r_1^2}\\\\A_2=\dfrac{12.568 \times 6.4^2}{2^2}\\\\=128.69\ in^2

So, the new area of the circle is 128.69\ in^2.

3 0
3 years ago
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