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3 years ago

13

In the Olympics, the athlete received an 85% score on the compulsory exercises, which are weighted 60%. In the optional round, w

eighted 40%, the athlete received a 90%. What was the athlete's weighted average score?

1 answer:

mote1985 [20]3 years ago

4 0

Answer:

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Find the area of the circle r=3 ft.

Irina-Kira [14]

Answer:

28.27

Step-by-step explanation:

first you have to stablish the formula for the area of the circle, which is A=pi×radius square. Then, you have to substitute the variables and solve. the formula with the numbers plugged in would be A=3.14×3 square. Finally, solve by multiplying 3×3=9, so the formula would be 9×3.14, when multiplyed, your answer would be 28.27 if you round it.

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4 years ago

The theoretical probability of rolling a number greater than 2 on a standard number cube is 5/6. True or False

marshall27 [118]

Answer:

false- its 4/6

Step-by-step explanation:

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3 years ago

Pleaseeee help meeeee<br><br><br>What is ∑n=125(3n−2) equal to?

vichka [17]

Answer:

$\sum_{n=1}^{25}(3n-2)=925]$

Step-by-step explanation:

The given series is $\sum_{n=1}^{25}(3n-2)$

The first term of this series is

$a_1=3(1)-2$

$a_1=3-2$

$a_1=1$

The second term is

$a_2=3(2)-2$

$a_2=6-2$

$a_2=4$

The common difference is

$d=4-1=3$

The sum of the first n-terms is given by;

$S_n=\frac{n}{2}[2a_1+d(n-1)]$

The sum of the first 25 terms of the series is

$S_{25}=\frac{25}{2}[2(1)+3(25-1)]$

$S_{25}=\frac{25}{2}[2+3(24)]$

$S_{25}=\frac{25}{2}(74)]$

$S_{25}=925]$

4 0

4 years ago

Read 2 more answers

Factor -1/4 out of -1/2x-5/4y

lapo4ka [179]

-1/4(2x+5y)

Hope I helped :)

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4 years ago

Determine square of -p+6

ValentinkaMS [17]

Answer:

-12p+p^2+36

Step by step explanation:

(-p+6)^2 is the square of -p+6

we use the formula

(a+b)^2=2ab+a^2+b^2

(-p+6)^2=-12p+p^2+36

the minus of p disappears

5 0

3 years ago

Read 2 more answers