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Aleksandr-060686 [28]
3 years ago
5

Evaulate a+4 when a=7

Mathematics
2 answers:
Radda [10]3 years ago
5 0

Answer:

Step-by-step explanation:

a + 4

(7) + 4

11

Leviafan [203]3 years ago
5 0

Answer:

11

Step-by-step explanation:

You plug 7 into the equation, and because 7=a, 7+4=11

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Help me with mathhh?!!!!??? ​
DedPeter [7]

Answer:

x = 1 1/4

Step-by-step explanation:

sqrt( 7x+2) = sqrt(3x+7)

Square each side

(sqrt( 7x+2))^2 = (sqrt(3x+7))^2

7x+2 = 3x+7

Subtract 3x from each side

7x-3x +2 = 3x+7-3x

4x+2 = 7

Subtract 2 from each side

4x+2-2 = 7-2

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Divide by 4

4x/4 = 5/4

x = 1 1/4

Check for extraneous solution

sqrt( 7*5/4+2) = sqrt(3*5/4+7)

sqrt( 35/4 + 8/4) = sqrt(15/4+28/4)

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3 0
3 years ago
5 + 7) + 3 = 5 + (7 + 3)
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Answer:

Step-by-step explanation:

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3 years ago
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Bird and reptiles both lay hard shelled eggs Birds and fish have jaws birds
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Step-by-step explanation:

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4 0
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Read 2 more answers
Find the rate of change and initial value. Y=mx+b
tekilochka [14]
Y= 4/5 x + 24
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From this info, the slope would be 4/5 and the y intercept or initial value would be 24
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3 years ago
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