NEED HELP WITH THIS PROBLEM ASAP!!!!!!!

Please help me, i will mark the brainliest pls!

Burka [1]

No because if you could use distributive property you would do 5*7 then 5*10 then you would get 35*50 which equals 1,750 and if you do it like it’s set up you would do 7*10 first cause PEMDAS so parentheses first so 7*10 is 70 then 70*5 is 350 and that’s not even close to the other answer so no you can’t .

6 0

3 years ago

PB is a line segment on a number line. It has endpoints at -2 and 12. What is the coordinate of its midpoint.

Zielflug [23.3K]

It is 7
2 below the zero, 12 above = 14 steps
middle point is 7

5 0

3 years ago

Which pair of variables has a clear causal link between the two named variables?

harina [27]

Answer: The number of air conditioners sold per day in a city and the daily temperature

Step-by-step explanation:

We know that if there is a causal relationship between two variables then one variable is responsible for causing the other variable.

the number of hats sold and the number of mittens sold in a city.

there is no causal relationship between the variables since both are independent variables.

the amount of butter and the amount of bread consumed by a family .

there is no causal relationship between the variables since both are independent variables.

the number of notebooks sold and the number of pens sold in a stationery store .

there is no causal relationship between the variables since both are independent variables.

the number of air conditioners sold per day in a city and the daily temperature .

there can be causal relationship between the variables since by increasing or decreasing temperature the the number of air conditioners sold per day in a city can be increased or decreased respectively.

the number of hours a person can swim and the depth of the pool.

there is no causal relationship between the variables since both are independent variables.

5 0

4 years ago

Read 2 more answers

Select all of the true statements about the standard deviation of a quantitative variable. 1. Standard deviation is resistive to

andrezito [222]

Answer:

Considering the first statement

Standard deviation is resistive to unusual values

This statement is false because standard deviation is the numeric measure of deviation of the each observation from the mean

Considering the second statement

The standard deviation of a set of values is equal to 0 if and only if all of the values are the same.

This statement is true because standard deviation is the numeric measure of deviation of the each observation from the mean.

Considering the third statement

Standard deviation is never negative.

This statement is true because standard deviation is the numeric measure of deviation of the each observation from the mean.

Considering the fourth statement

Changing the units of a set of values (e.g., converting from inches to feet) does not affect its standard deviation

This statement is false because standard deviation is the numeric measure of deviation of the each observation from the mean

Considering the fifth statement

If a set of values has a mean of 0 and a standard deviation that is not 0, then adding a new data point with a value of 0 will have no effect on the standard deviation.

This statement is false because , let take an example

x -4 - 3 0 3 4

Generally the mean is mathematically evaluated as

$\= x = \frac{\sum x_i }{n}$