3 years ago

Don’t know this one

Mathematics

2 answers:

tatiyna3 years ago

8 0

Answer:

Step-by-step explanation:

The answer is B because in order for the square root of a number to be equal to another number, the answer squared should be the number under the square root.

juin [17]3 years ago

7 0

B. $(-4)^2\neq -16$ .

Hope this helps.

You might be interested in

You have a board of wood that measures 9 3/4 feet. You cut a piece off the board measuring 2 15/16 feet and then another piece m

denpristay [2]

No u only have 2 7/16

7 0

3 years ago

A certain scale has an uncertainty of 4 g and a bias of 2 g. A single measurement is made on this scale. What are the bias and u

Fed [463]

Answer: 0.8

Step-by-step explanation:

given data:

uncertainity = 4g

bias = 2g

solution:

σX =0.2 and σY = 0.4

σcX

= 3σX

= 4(0.2)

= 0.8

6 0

3 years ago

The Waters family budget a maximum amount of $150 per week for groceries. Mr. Waters already spent $40. Write and solve an inequ

ivann1987 [24]

150-40 less than or equal to $110 -

They can spend less than or equal to $110

8 0

3 years ago

I’m completely confused.

Leviafan [203]

F(-2) = 7
f(0) = 6
f(6) = 3
f represents the function and the number in the parentheses is the input for the function, y on the graph is the output

6 0

3 years ago

Read 2 more answers

A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 34 , 0

Leya [2.2K]

Answer:

He should word his statement as "Free replacement for tires that wear before 30875 miles."

Step-by-step explanation:

If he is willing to replace 10% of tires he should find the life of tires that gives an area of 10% in the normal distribution graph.

Now for 10% of area standard normal deviate Z can be obtained from normal distribution table

Using normal distribution table for 10% area we have Z = -1.28

Thus we have $Z=\frac{X-\overline{X}}{\sigma }\\\\\therefore X=\sigma Z+\overline{X}$

Applying given values we get

$X=-1.28\times 2500+34000\\\\X=30875miles$

5 0

4 years ago