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jek_recluse [69]
3 years ago
13

The temperature changed from 3 degrees below zero at midnight to 7 degrees below

Mathematics
1 answer:
NikAS [45]3 years ago
3 0
The temperature decreased by 4 degrees.
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Help me pleaseeeeeeeeeee
liq [111]
7x= -42
X= -6

6y= -42
Y= -7
6 0
4 years ago
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Is it true that M is perpendicular to P?
saveliy_v [14]

yes it is true and second is false

6 0
3 years ago
What is x squared times 2
Jobisdone [24]

This equation simplified would be 2x^2.

Since we have terms that are not like (one has a variable and the other doesn't), we simply put them together when being multiplied.

x^2 * 2 = 2x^2

8 0
4 years ago
Forty-three girls went camping. The girls were able to choose to participate in karate and swimming. Twenty-one girls went swimm
horsena [70]
7 girls participated only in Karate.
21 + 8 = 29
29 + 7 = 36
36 + 6 = 43
4 0
3 years ago
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What value of b will cause the system to have an infinite number of solutions? y=6x-b -3x+1/2y=-3
Serhud [2]

Answer:

b = 6

Step-by-step explanation:

solve the second equation for 'y':

-3x + 1/2y = -3

add 3x to each side to get:

1/2y = 3x - 3

multiply all terms by 2 to eliminate the denominator to get:

y = 6x - 6

now compare '6x-6' with '6x-b'

you want both expressions to be equal because then there are an infinite number of solutions:

b = 6

7 0
3 years ago
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