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Dafna1 [17]
3 years ago
11

How to simplify this equation ? (3xy) (9y)

Mathematics
2 answers:
Alexandra [31]3 years ago
8 0
Hope this helps and I hope u get the answer right and pass

Helen [10]3 years ago
4 0

Answer:

27 xy^2

Step-by-step explanation:

(3xy) (9y)

Multiply

3*9 =27

xy*y = xy^2

Combine

27 xy^2

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your total savings varies inversely with the amount spent on Bill's. if your savings is $300 when your cost of Bill's are $65. W
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Let S and B be savings and bills respectively. Then,
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Therefore,
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**PLEASE HELP ILL MARK BRAINLIEST** Which of the following correctly represents y = 10x + 15
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Answer:

D

Step-by-step explanation:

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How much must be added to each of the three numbers 1, 11, and 23 so that together they form a geometric progression?
Sliva [168]

Answer:

49

Step-by-step explanation:

Let x be unknown number which should be added to numbers 1, 11, 23 to get geometric progression. Then numbers 1 + x, 11 + x, 23 + x are first three terms of geometric progression.

Hence,

b_1=1+x\\ \\b_2=11+x\\ \\b_3=23+x

and

b_2=b_1\cdot q\Rightarrow 11+x=(1+x)q\\ \\b_3=b_2\cdot q\Rightarrow 23+x=(11+x)q

Express q:

q=\dfrac{11+x}{1+x}=\dfrac{23+x}{11+x}

Solve this equation. Cross multiply:

(11+x)^2=(1+x)(23+x)\\ \\121+22x+x^2=23+x+23x+x^2\\ \\121+22x=23+24x\\ \\22x-24x=23-121\\ \\-2x=-98\\ \\2x=98\\ \\x=49

5 0
3 years ago
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3 years ago
Read 2 more answers
Whats the answer to this?
qaws [65]

Answer: 1,3,5

Step-by-step explanation:

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3 years ago
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