3 years ago

How can exercise affect the risk of a cardiac event? What is important to

1 answer:

4 0

Regular, moderate to vigorous physical activity helps reduce the risk of cardiovascular disease. Physical activity can help control blood cholesterol, diabetes and obesity. It can also help to lower blood pressure in some people.

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Which subset of the rational numbers best describes the dimension of a rectangle ?

Alinara [238K]

Either A or D I believe

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3 years ago

A rectangle has a width of 5 yd and a length of 9 yd.

Yuri [45]

Answer:

Option The area is increased by a factor of $16$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to scale factor squared

Let

z-----> the scale factor

x------> the area of the dilated rectangle

y------> the area of the original rectangle

$z^{2}=\frac{x}{y}$

we have

$z=4$ ------> is an enlargement

substitute

$4^{2}=\frac{x}{y}$

$16=\frac{x}{y}$

$x=16y$

therefore

The area is increased by a factor of $16$

8 0

3 years ago

Read 2 more answers

"Tim's lawn is 20 meters by 30 meters. If Tim can mow 8 square meters of grass per minute, how long will it take him to mow the

frosja888 [35]

One hour and a half

5 0

3 years ago

The perimeter of a rectangular painting is 304 centimeters. If the length of the painting is 85 centimeters, what is its width?

Brums [2.3K]

Answer:

3.58

Step-by-step explanation:

You have to divide 304 by 85

you will get 3.57647058824

You have to round it to the nearest hundedth which will leave you with 3.57

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2 years ago

determine if the sequence is geometric or arithmetic and find the ratio or difference. -1, 6, -36, 216

andrew-mc [135]

The sequence is an geometric progression;
Nth=a₁r^(n-1)
a₁ is the first term=-1
r=ratio=a₂/a₁=6/-1=-6

Nth=-1(-6^(n-1)

NTh=an

a₁=-1(-6⁰)=-1
a₂=-1(-6¹)=6
a₃=-1(-6²)=-36
a₄=-1(-6³)=216

therefore this serie is rising at an increasing fast speed, it is an geometric progression.

4 0

3 years ago