eight out of ten dentits prefer crest toothpaste what is the ratio of dentist who do not prefear crest to those who do

Answers

Answer 1

Answer: The ratio is 2:10 because 2 out of the 10 dentists did not recommend crest

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If the complex number x = 3 + bi and |x|^2 = 13, which is a possible value of b? A. 2
B. 3
C. 9
D. 10

20 points to the brainliest user!!!!

Answers

If x=3+bi, then

$|x|=√(3^2+b^2).$

You know that $|x|^2=13,$ then

$\left(√(3^2+b^2)\right)^2=13,\n \n 9+b^2=13,\n \nb^2=4,\n \nb=\pm 2.$

Two possible complex numbers satisfy these conditions:

$x_1=3+2i, \ x_2=3-2i.$

As you can see the possible value of b is 2.

Answer: correct choice is A.

What is 0.005 in words

Answers

it's 5 thousandths because it's the third space

5 hundredths, its the same as whole numbers, just backwards

Subtract. 3/8−(−5 1/4)

Enter your answer, as a mixed number in simplest form.
P.S -5 1/4 is a mixed number)

Answers

Your answer would like be 5 5/8

Multiplying numerators and denominators to get the LCD in all fraction denominators

= 38−21×24×2

Then rewriting the equation with the equivalent fractions

= 38−428

With like denominators we can operate on just the numerators

= 3−4 2/8

=−39/ 8

Simplifying the answer

= − 39/8

= − 4 7/8

How do you do that plz help or just give the answer

Answers

2x-(-1/2x-1/2)=8
the - sign before the first parentheses is a negative 1
you distribute the -1 into the parentheses
-1 multiplied by -1/2x is 1/2x and -1 multiplied by -1/2 is 1/2.
so now we have 2x-1/2x+1/2=8
you combine like terms (2x and -1/2x)
you get 1 1/2x+1/2=8
you subtract the 1/2 to get 1 1/2x= 7 1/2
you divide everything by 1 1/2.
the answer is x=5

Please help! Would you describe the associations in this table as… (pick two)Linear? Negative? Nonlinear? Positive?

I know it would be nonlinear because neither Variable X OR Y have a constant rate of change.
Unfortunately, I don't know whether it is positive or negative.

Answers

i would say negative

Twenty eighth graders were asked which color they liked best - red, green, or blue. Their responses appear below.red, green, blue, blue, red, green, red, green, blue, red
red, blue, red, red, blue, red, blue, red, green, red

Which of the following represents the relative frequency table and the percent bar graph summarizing the survey results?

Answers

50% of eighth graders like red

5% of eighth graders like green and

45% of eighth graders like blue.

I hoped this helped as well as it was right.

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