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PSYCHO15rus [73]
3 years ago
11

Multiply (b+3)*(a+7)

Mathematics
2 answers:
mestny [16]3 years ago
6 0

Answer:

ba+7b+3a+21

Step-by-step explanation:

Use the FOIL method: (a+b)*(c+d) = ac+ad+bc+bd(a+b)(c+d )= ac+ad+bc+bd.

tamaranim1 [39]3 years ago
4 0

ba+7a=7. use foil method

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3 years ago
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
Ipatiy [6.2K]

Answer:

108

Step-by-step explanation:

Limit as x approaches 9 of x^2 -81/sqrt of x - 3

First substitute x into the expression

= 9²-81/√9 - 3

= 81-81/3-3

= 0/0 (indeterminate)

Apply l'hospital rule

= lim x -> 9 d/dx(x²-81)/√x - 3

= lim x -> 9 2x/1/2√x

Substitute x = 9

= 2(9)/1/2√9

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Hence the limit of the function is 108

7 0
3 years ago
Ok so darryl is reading a book at the rate of 4.5 pages per minute. what ordered pair on a graph of his reading rate would repre
klasskru [66]

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5 0
3 years ago
Read 2 more answers
Howard read 1/16 of a book each day until he finished both books how many days did I take howard to read both books​
Luden [163]

Answer:

32

Step-by-step explanation:

because 16+16 is 32

7 0
3 years ago
Please help me with sum​
krok68 [10]

Step-by-step explanation:

39 x 9 = 351

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95 x 3 = 285

----------------------©--------------------©--------------------_

7 0
3 years ago
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