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MaRussiya [10]
3 years ago
10

1. (3x + 7) + (8x + 2)

Mathematics
1 answer:
Mashutka [201]3 years ago
5 0
11x+9


Step by step:
Remove the parenthesis
3x+7+8x+2
Collect like terms
11x+7+2
Add 7+2
11x+9
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The freezing point of neon is about -249c . The freezing point of chorine is about 148c higher. What is the approximate freezing
Westkost [7]

Answer:

-101 c.

Step-by-step explanation:

-249 + 148

= -(249 - 148)

= -101 C.

5 0
3 years ago
What is the sum of two odd numbers of 36
irakobra [83]
The sum of two odd numbers is 23+13. One way you could figure it out is to use your logic thinking! Hope this helps and I hope that you get this answer before the moderater deletes it! (They hate me! ☹️ I don't know what I ever done to them I just started today)
4 0
3 years ago
Describe and correct the error a student made in finding the midpoint cd with c(-4,5) and d(-1,-4).
Gnesinka [82]

Answer:

Step-by-step explanation:

The formula for finding the midpoint of two coordinates is expressed as;

M(X,Y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})

Given the coordinates c(-4,5) and d(-1,-4), x1 = -4, y1 = 5, x2 = -1 and y2 = -4.

For the X coordinate of the midpoint

X = x1+x2/2

X = -4+(-1)/2

X = -4-1/2

X = -5/2

X = -2.5

Similarly for Y:

Y = y1+y2/2

Y = 5+(-4)/2

Y = 5-4/2

Y = 1/2

Y = 0.5

Hence the midpoint coordinate of C(-4,5) and D (-1,-4) is (-2.5, 0.5)

5 0
3 years ago
When Colton commutes to work, the amount of time it takes him to arrive is normally distributed with a mean of 41 minutes and a
N76 [4]

Answer:

(34, 48)

Step-by-step explanation:

According to the Empirical Rule, 95% of normally distributed data lie within two standard deviations of the mean.  That, in turn, means 95% of the data in this problem lie within 2(3.5 min), or 7 min, of the mean:

41 - 7 < mean < 41 + 7, or

34 < mean < 48, or simply (34, 48)

6 0
3 years ago
3.
steposvetlana [31]

Answer:

Step-by-step explanation:

range?

6 0
4 years ago
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