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1 year ago

Use the function to predict the minimum target heart rate for a person 20 years old. beats per minute

Mathematics

2 answers:

True [87]1 year ago

8 0

Answer:

Answer is 120 !!

Step-by-step explanation:

~Hope this helps! :)

Dmitriy789 [7]1 year ago

3 0

The minimum target heart rate for a person 20 years old is 120 beats per minute

<h3>How to predict the minimum target heart rate?</h3>

The equation of the function is given as:

y = -0.6x + 132

Where x represents the age, and y represents the minimum target heart rate

From the question, we have:

x = 20

Substitute x = 20 in y = -0.6x + 132

This gives

y = -0.6 *20 + 132

Evaluate

y = 120

Hence, the minimum target heart rate for a person 20 years old is 120 beats per minute

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Question 2

mylen [45]

Answer:

Part A: OC. 16π square inches

Part B: OC. 36π square inches

Step-by-step explanation:

Part A:

Given

Diameter of circular picture = d = 8 inches

We need to find the radius first to find the area

So,

Rdius = r = d/2 = 8/2 = 4 inches

$Area = \pi r^2\\= \pi *(4)^2\\= 16\pi\ square\ inches$

Therefore, option C is the correct answer..

Part B:

As two inches frame is added around the picture, the diameter will become 8+4 =12 inches

The new radius will be:

r = 12/2 = 6

So,

$Area\ with\ frame = \pi r^2\\=\pi *(6)^2\\=36\pi\ square inches$

Therefore, option C is correct ..

3 0

3 years ago

What is side e Angle d and angle f Please let me know asap

irga5000 [103]

9514 1404 393

Answer:

e ≈ 9.608
D ≈ 46.5°
F ≈ 38.5°

Step-by-step explanation:

The only given angle is between the two given sides, so the Law of Cosines must be used to find the side opposite the angle. It tells you ...

e² = d²+f² -2df·cos(E)

e² = 7² +6² -2·7·6·cos(95°) ≈ 92.321082

e ≈ 9.608

The remaining angles can be found from the law of sines.

sin(D)/d = sin(E)/e

D = arcsin(d/e·sin(E)) ≈ arcsin(7/9.608·sin(95°)) ≈ 46.5°

F = 180° -95° -46.5° = 38.5°

8 0

3 years ago

How did he get from 3^-16/3/3^-8/3 to 0.00285333857/0.00285333857??? (The circled part) Because when I put it in the calculator

seropon [69]

Step-by-step explanation:

$\frac{ {3}^{ - \frac{16}{ 3} } }{ {3}^{ - \frac{ 8}{3} } } = \frac{0.002853338}{0.05341665075}$

I think, he made a mistake because the exponents have different values but then if you'll look at his results, he just wrote the same thing. If you want, you could post the original problem, and I'll solve it for you :)

7 0

2 years ago

Is borrowing money a Delegated power Reserved power Concurrent power

grin007 [14]

I believe that it is a concurrent power

8 0

3 years ago

Grandma has 1/2 of her birthday cake left . she wants her 12 grandchildren to each get the same size piece of cake to take home

eimsori [14]

Answer: 1/24

Step-by-step explanation:

you need to use kcf ( keep the first fraction change division into multiplication and flip the other fraction)

turn 12 into 12/1 and then just divide.

1/2 x 1/12

= 1/24

6 0

3 years ago

Read 2 more answers