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Bingel [31]
3 years ago
8

Which expression correctly represents “twice the sum of four and a number”?

Mathematics
2 answers:
iVinArrow [24]3 years ago
5 0

Answer:

It is A

Step-by-step explanation:

labwork [276]3 years ago
4 0
2(4+n) because the sum of 4 and a number is 4+n so twice that is 2(4+n)
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In the equation c*2=22 what is the next step in the equation solving sequence?
romanna [79]
Divide 22 by 2 to get "c" isolated.
3 0
3 years ago
If log_3(x)=4.5 and log_3(y)=3, what is log_3(x^2/y)?<br><br>a. 3<br>b. 6.75<br>c. 6<br>d. 1.5​
astraxan [27]

There all log base 3, the base won't matter as long as they're all the same.

log(x^2/y)=2log(x)-log(y)=2(4.5)-3=6

Answer: c. 6

4 0
3 years ago
What is the solution to the system of equations below? y = -3X+5 and y=4x-2 (1, 2) (1, –18) (–1, 8) (–1, –6)
Maurinko [17]

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

y = - 3x + 5 → (1)

y = 4x - 2 → (2)

Substitute y = 4x - 2 into (1)

4x - 2 = - 3x + 5 ( add 3x to both sides )

7x - 2 = 5 ( add 2 to both sides )

7x = 7 ( divide both sides by 7 )

x = 1

Substitute x = 1 into (2) for corresponding value of y

y = (4 × 1) - 2 = 4 - 2 = 2

Solution is (1, 2 )

4 0
3 years ago
Read 2 more answers
The height of males approximates a normal distribution. The average height of the players on an NBA team is 6.6 feet with a stan
lara [203]
D) 4.5 Standard Deviations Above the Mean

All you have to do is add .2 to 6.6 until you reach 7.5

6.8
7.0
7.2
7.4

 Then you only need half of .2 to reach 7.5, so it's 4.5 standard deviations above the mean
6 0
3 years ago
Adding -6 is the same as?
Maru [420]
O think it is c subtracting 6 because adding and subtracting is the same so it’s either c or d
4 0
3 years ago
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