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Vedmedyk [2.9K]
3 years ago
8

Solve and show work to -3 exponent 2 =

Mathematics
1 answer:
olganol [36]3 years ago
4 0
I think it might be 9
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-5x - 4y + 2x + 7y = can someone help me with this please
wolverine [178]

Answer:

= -3 (x-y)

Step-by-step explanation:

-5x - 4y + 2x + 7y

Collect the like terms by calculating the sum or difference of their coefficients

(-5+2)x

-3x

(-4+7)y

3y

-3x + 3y

Factor out -3 from the expression

-3 (x-y)

4 0
3 years ago
Pears cost $0.92 per pound and apples cost $1.10 per pound. Mr. Bonilla bought 3.75 pound of pears and 2.1 pounds of apples. How
Blababa [14]
3.75* .92= $3.45

2.1* 1.10= $2.31

$3.45
+ $2.31
_______
$5.76
6 0
3 years ago
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Which property can be used to show that if 3a = 4b, then 4b = 3a?
ycow [4]

Step-by-step explanation:commutative property

hope it helps

4 0
2 years ago
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The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. Men the same
ohaa [14]

Answer:

z=(x-mu)/o

Step-by-step explanation:

X - Heights of women aged 20 to 29: X is N(64, 2.7)

Y - Heights of men aged 20 to 29: X is N(69.3, 2.8)

a) X=6'=72"

b) Y = 72"

c) 72' women can be taken as very tall but men moderately taller than average

d) Y<5'5" =65"

e) X>73"

Z>

Almost 0% can be taken

f) IQR =Q3-Q1

3 0
2 years ago
4(x+x+7)-2x+7-4 by substituting x=1 and x=2
yuradex [85]
4(x+x+7) x=1
4(1+1+7)
4+4+28 = 36

(-2x+7-4) x=2
-2(2)+7-4
-4+7-4 = -1

5 0
3 years ago
Read 2 more answers
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