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4 years ago

A table is on sale for 73% off. The sale price is $129.60 . What is the regular price?

Mathematics

1 answer:

anastassius [24]4 years ago

6 0

You would turn the percent into a decimal then divide by the decimal.

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Solve the system by graphing

Juli2301 [7.4K]

Where is the picture?

4 0

3 years ago

Describe and correct the error made in finding the product. <br><br> Please explain what's wrong

qaws [65]

Okay, it's wrong because they forgot to do -2 times 3x.
The correct answer is $3^{2}$ -2x-8
Hope i got is correct!

5 0

3 years ago

What is 15.37×5 show work

just olya [345]

This should be quite easy to explain. So the first thing you want to do is multiply them. This isn't to hard if you know your times tables. Don't worry about the decimal till the end.

15.37
× 5
---------
76.85

15.37 times 5 is 76.85

Now on to the decimal. All you need to do is move it two times to the left. You see how it's in between the 5 and 3? The same goes for your answer. So it is 76.85

I hope this helped!! ^^ I can make this a little more easier to explain if you want me to just in case, ok?

3 0

3 years ago

Read 2 more answers

Standard deviation of a normal data distribution is a _______. Group of answer choices

FrozenT [24]

Answer:

Standard deviation of a normal data distribution is a measure of data dispersion.

Step-by-step explanation:

Standard deviation is used to measure dispersion which is present around the mean data.

The value of standard deviation will never be negative.

The greater the spread, the greater the standard deviation.

Steps-

1. At first, the mean value should be discovered.

2.Then find out the square of it's distance to mean value.

3.Then total the values

4.Then divide the number of data point.

5.the square root have to be taken.

Formula-

SD= $\sqrt{\frac{(\sum{x-x)^2} }{n-1}$

Advantage-

It is used to measure dispersion when mean is used as measure of central tendency.

5 0

3 years ago

Which of the following is a solution of x^2+8x= -32

juin [17]

Answer:

X1=-4+4i

X2=-4-4i

Step-by-step explanation:

X^2+8x+32=0

Δ=b^2-4ac=8^2-4(32)=-64<0

X1=(-b-i√Δ) /2a=(-8-8i)/2=-4-4i

X2=(-b+i√Δ) /2a=(-8+8i)/2=-4+4i

3 0

3 years ago