3 years ago

Plsss Help Urgent!!! Which point represents the person who practiced the most and got the fastest time in a swim meet?

Mathematics

1 answer:

Marianna [84]3 years ago

5 0

Answer:

Point X

Step-by-step explanation:

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eimsori [14]

15 servings because 11.25/0.75=15

3/4=.75
11 1/4=11.25

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3 years ago

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kherson [118]

Answer:

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Step-by-step explanation:

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3 years ago

Complete the identity

spin [16.1K]

Answer: $cos(\pi-x)=-cos(x)$

Step-by-step explanation:

We need to apply the following identity:

$cos(A - B) = cos A*cos B + sinA*sin B$

Then, applying this, you know that for $cos(\pi-x)$ :

$cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$

We need to remember that:

$cos(\pi)=-1$ and $sin(\pi)=0$

Therefore, we need to substitute these values into $cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$ .

Then, you get:

$cos(\pi-x)=(-1)*cos(x)+0*sin(x)$

$cos(\pi-x)=-1cos(x)+0$

$cos(\pi-x)=-cos(x)$

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3 years ago

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Wewaii [24]

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2 years ago

Rachel charges $7 to rake leaves in her neighborhood.Last week,she raked leaves in 3 yards.She put 2/3 of her savings account.Ho

Phantasy [73]

Answer:

Step-by-step explanation:

7*3=21

2/3 of 21 is 14 so she saved 14 dollars

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