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tigry1 [53]
4 years ago
11

What is (x+7)3y equal to

Mathematics
1 answer:
Bess [88]4 years ago
7 0

Answer:

(x + 7)3y = 3xy + 21y

Step-by-step explanation:

Expand the expression in the question by using the distributive property. This means you multiply the term (number) outside the bracket with each of the terms (numbers) inside the bracket.

(x + 7)3y                  Expand this

= (x)(3y) + (7)(3y)            Multiply 3y with x and 7

= 3xy + 21y                 Simplified, final answer

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DetermIne the inverse function of f(x) = 1/3 + 6 <br> Please show work
yawa3891 [41]

Answer:

f(x)⁻¹ = 3x - 18

Step-by-step explanation:

I'm going to assume that 1/3 is the coefficient of the x.

f(x) = 1/3x + 6

y = 1/3x + 6

x = 1/3y + 6

x - 6 = 1/3y

3x - 18 = y

f(x)⁻¹ = 3x - 18

8 0
3 years ago
Suppose 56% of the registered voters in a country are Republican. If a sample of 447 voters is selected, what is the probability
o-na [289]

Answer: 0.9554

Step-by-step explanation:

Given : The proportion of  the registered voters in a country are Republican = P=0.56

The number of voters = 447

The test statistic for proportion :-

z=\dfrac{p-P}{\sqrt{\dfrac{P(1-P)}{n}}}

For p= 0.60

z=\dfrac{0.60-0.56}{\sqrt{\dfrac{0.56(1-0.56)}{447}}}\approx1.70

Now, the probability that the sample proportion of Republicans will be less than 60% (by using the standard normal distribution table):-

P(x

Hence, the probability that the sample proportion of Republicans will be less than 60% = 0.9554

6 0
4 years ago
5270÷312 with remainder​
aleksley [76]

This is the answer for the calculation

6 0
3 years ago
Read 2 more answers
Divide and simplify 5/12÷20/36
gregori [183]
Hello there! The formula for dividing fraction is keep, change, flip. You keep the first fraction the same, change division into multiplication, and flip the second fraction over by its reciprocal. In this case, 5/12 remains the same, division becoems multiplication, and 20/36 flips over to become 36/20. So the expression becomes this:

5/12 * 36/20

Now, we multiply straight across. 5 * 36 is 180. 12 * 20 is 240. 180/240 is 3/4 in simplest form. There. The quotient is 3/4.
3 0
3 years ago
Please help meeeee!!!
bazaltina [42]

Answer:

C -8

Step-by-step explanation:

Hope it helps :)!!

7 0
3 years ago
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