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3 years ago

6

Eight people audition for a choir. The choir director must choose one soprano, one alto, and one tenor. In how many ways can the

director fill these positions? A. 56 B. 336 C.6720 D.40,320

1 answer:

aleksandr82 [10.1K]3 years ago

3 0

I think it's C) but the answer should be 6561.

3 groups and 8 people...

$3 {}^{8}$
Will give you your answer

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What is the upper quartile of the box plot graph?

julia-pushkina [17]

Answer: Choice A) 90

The upper quartile, aka the third quartile (Q3), is visually represented by the right-side edge of the box, which is at 90 on the number line.

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3 years ago

The box plots show the average gas mileage, in miles per gallon, of cars and minivans tested by a certain company.

mr_godi [17]

Answer:

b.The interquartile range for cars is about 7 mpg, and the interquartile range for minivans is about 3 mpg.

Step-by-step explanation:

i got it right

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3 years ago

Read 2 more answers

A window shaped like a parallelogram has an area of 23 4/5 square feet. The height of the window is 2 4/5 feet. How long is the

USPshnik [31]

Answer:

base = 8 $\frac{1}{2}ft$

Step-by-step explanation:

The general formula for the area of a parallelogram is:

A = bh, where b = the length of the base and h = the height

Using the given values for area and height, we can solve for the missing variable of 'b':

23 $\frac{4}{5}=\frac{119}{5}$

2 $\frac{4}{5}=\frac{14}{5}$

$\frac{119}{5}=\frac{14}{5}h$

Multiply both sides by the reciprocal:

$(\frac{5}{14})(\frac{119}{5})=(\frac{14}{5})(\frac{5}{14})h$

$\frac{119}{14}=h$

$h=8\frac{1}{2}ft$

5 0

3 years ago

Need an answer thanks

RUDIKE [14]

Find X:
38=(3x+4)+(5x-6)
combine like terms
38=8x-2
add 2 to both sides
40=8x
divide both sides by 8
5=x
Find AB:
16=3x+4
subtract 4 from both sides
12=3x
divide by 3
4=x
Find BC:
16=5x-6
add 6 to both sides
22=5x
divide both sides by 5

8 0

4 years ago

Those are the math questions I need the answers of

Elena L [17]

Answer:

1)

$12\sqrt{18}-3\sqrt{50}+\sqrt{32}$

$12\sqrt{9}\sqrt{2}-3\sqrt{25} \sqrt{2} +\sqrt{16} \sqrt{2}$

$12\times3\sqrt{2} -3\times5\sqrt{2}+4\sqrt{2}$

$36\sqrt{2}-15\sqrt{2}+4\sqrt{2}$

$25\sqrt{2}$

2)

$\frac{1}{5+2\sqrt{6}}$

Multiply $5-2\sqrt{6}$ :

$\frac{1\times \left(5-2\sqrt{6}\right)}{\left(5+2\sqrt{6}\right)\left(5-2\sqrt{6}\right)}$

Apply Difference of Squares formula: $(a+b)(a-b)=a^2-b^2$

$\frac{5-2\sqrt{6}}{5^2-\left(2\sqrt{6}\right)^2}$

$\frac{5-2\sqrt{6}}{25-2^2\left(\sqrt{6}\right)^2}$

$\frac{5-2\sqrt{6}}{25-4\times6}$

$\frac{5-2\sqrt{6}}{1}$

${5-2\sqrt{6}}$

a = 5, b = -2

7 0

4 years ago