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Marina CMI [18]
3 years ago
9

Evaluate the expression 5x4+2x6

Mathematics
2 answers:
brilliants [131]3 years ago
6 0

Answer:

32

Step-by-step explanation:

Hope this helps!!

vodka [1.7K]3 years ago
4 0

Answer:

The answer to this is: 132

Step-by-step explanation:

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A pine tree grows about 18 inches per year. After how many years will the tree be 90 inches tall? [Type your answer as a number.
Monica [59]

5 years because when you divide 90 by 18 to get how many years it takes the tree to grow to 90 inches tall, you get 5.

3 0
3 years ago
Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Check al
natka813 [3]
Find the slope of the line first:
5x - 2y = -6,
y = (5/2)x + 3;
Since we need a line that's perpendicular, m = - (2/5).

The only equation that has the slope of this m is 2x + 5y = -10;
8 0
3 years ago
Read 2 more answers
1. 36(a+b)^2 - 49(a-b(^2
Brums [2.3K]

Answer:

-13a^2 + 170ab - 13b^2.

Step-by-step explanation:

1.  36(a+b)^2 - 49(a-b)^2

This is the difference of 2 squares: a^2 - b^2 = (a + b)(a - b).

36(a+b)^2 - 49(a-b)^2

= (6(a + b) + 7(a - b))(  6(a + b) - 7(a - b))

= (6a  + 7a + 6b - 7b)( 6a - 7a + 6b + 7b)

= (13a - b)(-a + 13b)

If you require the expansion of this it is:

-13a^2 + 170ab - 13b^2.

8 0
3 years ago
Find the value of x
devlian [24]
X=20
180=7x+x+20
-20.         -20
180=7x+x
180=8x
divide by 8
x=20

5 0
3 years ago
Halla la suma de 3, ocho veces un número, y tres veces el mismo número
prohojiy [21]

Answer:

huh?

Step-by-step explanation:

6 0
3 years ago
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