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2 years ago

For the below expressions, write an equivalent expression that

Mathematics

1 answer:

boyakko [2]2 years ago

3 0

Answer:

So this is pretty much endless but here are a few examples:

3+3+3+3

4x+(-7y) + (-46)

-3% + (-8y) + (-4) + (-0.1111)

Step-by-step explanation:

Hope this helps have a great rest of your day

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What is the sum of the arithmetic series of odd numbers below 1+3+5+...+27

AnnZ [28]

Answer:

196

Step-by-step explanation:

1+2+3+4+......+25+26+27 = (1+27) + (3+25) + (5+23)+(7+21) + (9+19) + (11+17) + (13+15)

= 28 x 7 = 196

It's like area of trapezoid of bases: 1, 27 and height of 14

6 0

3 years ago

The revenue generated by the band is given by the expression 50x + 150y. If the band plays 15 weekday shows and 6 weekend shows

Artist 52 [7]

Assuming that x is equal to weekday shows and y is equal to weekend shows, the band will exceed their goal by $150.

To find this, we need to plug 15 in for x and 6 in for y. Then we need to evaluate the equation.

R = 50x + 150y

R = 50(15) + 150(6)

R = 750 + 900

R = 1650

Therefore, we know that they exceeded their goal by $150 by getting the total of $1650.

3 0

3 years ago

Read 2 more answers

If i need 5 tomatoes to feed 7 people, how many tomatoes do i need to feed 100 leople

MAXImum [283]

5 - 7
10 - 14
15 - 21
20 - 28
25 - 35
30 - 42
35 - 42
40 - 56
45 - 63
50 - 70
55 - 77
60 - 84
65 - 91
70 - 98
75 - 105

105 with a little extra c:

3 0

3 years ago

Write a factor that you can use to rationalize the denominator of<br> 4<br> 6

RoseWind [281]

Answer:

Step-by-step explanation:

4/6, cancelling by 2

2/3

5 0

3 years ago

Peggy constructed the 95 percent confidence interval (4.8,5.2) to estimate the slope of a regression model for a set of bivariat

butalik [34]

Answer:

B. Quincy's claim is correct.

Step-by-step explanation:

Margin of error of a confidence interval:

The margin of error of a confidence interval has the following format:

$M = z\frac{s}{\sqrt{n}}$

In which z is related to the confidence level, s is the standard error and n is the size of the sample.

From this interval, we have that the margin of error and the sample size are inversely proportional, that is, if we increase the sample size, the margin of error decreases, and so does the width of the confidence interval.

Peggy claims that the width of the confidence interval will increase if a sample size of 30 is used, all other things remaining the same.

Peggy is wrong, as the increase of the sample size results on the decrease of the margin of error, and a decrease of the width.

Quincy claims that the width of the confidence interval will decrease if a sample size of 30 is used.

Margin of error decreases, and so does the width of the interval, thus, Quincy's claim is correct, and the correct answer is given by option b.

6 0

3 years ago