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MatroZZZ [7]
2 years ago
7

HELLPPPPP PLLEASEE PEOPLE

Mathematics
2 answers:
Maurinko [17]2 years ago
8 0

Answer:

A

Step-by-step explanation:

1/3 is split but if you add it it makes 1/3

Jobisdone [24]2 years ago
6 0

Answer:

d

Step-by-step explanation:

You might be interested in
How do you find the variability of a sample?
k0ka [10]

Answer:

Step 1: Calculate the mean (the average weight).

Step 2: Subtract the mean and square the result.

Step 3: Work out the average of those differences.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Ow is the product of 3 and –2 shown using integer tiles?
PIT_PIT [208]

The correct answer is option C which is 3 sets of 2 negative tiles.

<h3>What is multiplication?</h3>

Multiplication is the process of determining the product of two or more numbers in mathematics.

We have the product of 3 and -2. We can represent this as 3 is equivalent to -2 negative tiles.

When we add -2 three times -2 - 2 -2 = -6 we will get -6 that is 3 sets of 2 negative tiles.

So when we multiply it by 3, we end with 3 sets of 2 negative tiles. This is because the order of the factors does not change the product.

Therefore the correct answer is option C which is 3 sets of 2 negative tiles.

To know more about multiplication follow

brainly.com/question/10873737

#SPJ1

5 0
2 years ago
36 out of 100 randomly selected taxpayers knew about tax incentives for installing energy-saving furnaces. Find a 90% confidence
tresset_1 [31]

Answer:

The 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 100, \pi = \frac{36}{60} = 0.6

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 - 1.645\sqrt{\frac{0.36*0.64}{100}} = 0.28

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 + 1.645\sqrt{\frac{0.36*0.64}{100}} = 0.44

The 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).

7 0
3 years ago
What is the solution to the following system of equations:<br><br>7x+2y=24<br>8x+2y=30<br>​
GuDViN [60]

Answer:

7x +2y =24 --------- (i)

8x +2y= 30 ---------(ii)

Subtracting eqn. (i) & (ii)

7x +2y =24

8x +2y= 30

- - -

___________

-x = - 6

Putting the value of x in eqn. (i)

7*6 +2y =24

42 +2y =24

2y =-18

y = - 9

Hence, x=6 and y= - 9

Hope it helps!!

3 0
3 years ago
Which expression has a value that is equivalent to 5n+13 when n= -15
Rasek [7]
Which expression has a value that is equivalent to 5n+13 when n=-15? n^2+13x 








6 0
3 years ago
Read 2 more answers
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