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m_a_m_a [10]
3 years ago
7

In tennis Gabby serves in Ace a ball that can’t be returned four out of the 10 times she serves. What is the experimental probab

ility that Gabby will serve an ace on the first service of the next game? Make a prediction about how many Ace’s Gabby will make on her next 40 serves. Justify your reasoning.
Mathematics
1 answer:
just olya [345]3 years ago
3 0
She will hit 16 out of the next 40
You might be interested in
What expression represents the product of 3 less than twice x and 2 more than the quantity 3 times x?
Georgia [21]
"3 less than twice 'x' " . . . . that's (2x - 3)

" 2 more than the quantity (3 x) " . . . . . that's (3x + 2)

Their product is
                               (2x - 3) (3x + 2) .

If you want to expand it to a single expression, perform the multiplication,
and you have
                            6x² - 5x - 6  .
8 0
3 years ago
A cylinder has an approximate volume of 288 cubic inches. The radius of the cylinder is 6 inches. what is the height of the cyli
Alex Ar [27]

Answer:

48

Step-by-step explanation:

288/6=48

it's bacically the same as perimeter and area

5 0
2 years ago
Read 2 more answers
A person places $262 in an investment account earning an annual rate of 3.7%,
yaroslaw [1]

Answer:

$315.24

Step-by-step explanation:

Principal, P =$262

Rate, r= 3.7% =0.037

Time, t= 5 Years

The Value of the Investment which is compounded continuously is gotten using the formula:

V=Pe^{rt}\\=262*e^{0,037*5}\\=\$315.24

The value of the investment after 5 years is $315.24 to the nearest cent.

3 0
3 years ago
Show the work please
Kay [80]

Answer:

1) (x + 3)(3x + 2)

2) x= +/-root6 - 1 by 5

Step-by-step explanation:

3x^2 + 11x + 6 = 0 (mid-term break)

using mid-term break

3x^2 + 9x + 2x + 6 = 0

factor out 3x from first pair and +2 from the second pair

3x(x + 3) + 2(x + 3)

factor out x+3

(x + 3)(3x + 2)

5x^2 + 2x = 1 (completing squares)

rearrange the equation

5x^2 + 2x - 1 = 0

divide both sides by 5 to cancel out the 5 of first term

5x^2/5 + 2x/5 - 1/5 = 0/5

x^2 + 2x/5 - 1/5 = 0

rearranging the equation to gain a+b=c form

x^2 + 2x/5 = 1/5

adding (1/5)^2 on both sides

x^2 + 2x/5 + (1/5)^2 = 1/5 + (1/5)^2

(x + 1/5)^2 = 1/5 + 1/25

(x + 1/5)^2 = 5 + 1 by 25

(x + 1/5)^2 = 6/25

taking square root on both sides

root(x + 1/5)^2 = +/- root(6/25)

x + 1/5 = +/- root6 /5

shifting 1/5 on the other side

x = +/- root6 /5 - 1/5

x = +/- root6 - 1 by 5

x = + root6 - 1 by 5 or x= - root6 - 1 by 5

4 0
3 years ago
The weather forecaster says that tomorrow there is a 87% chance that it will rain. Which word or phrase describes the probabilit
schepotkina [342]

Answer: likely

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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