When you exercise, your target heart rate r at 70% can be determined by the formula r = 0.7(220 − a) where a represents your age in years. Solve the formula for a.


PLEASE HELP

Answers

Answer 1

don’t use those links they’re scams

Related Questions

x = [?]
3x + 2 + 6x + -20

Answers

Answer:

9x−18

Step-by-step explanation:

Please help:(

A. D: (2, 1, 0, -2, -3), R (1, -3, -3, -3, -4}

B. D: (-3, -2, 0, 1, 2}, R: (-4, -3, 1)

C. D: (-3, -2, 1, 1, 2), R: (1, -3, -4)

D. D (-3, -2, 0, 1, 2), R (1, -3, -3, -3, -4)

Which is the answer?

Answers

Answer  c would be the answer hope it helps

Step-by-step ex planation:

Pls help me on this what is the correct answer

Answers

Answer:

C 61,705

Step-by-step explanation:

10.9% of 35,000 = 3,815

3,815 x 7 = 26,705  (interest is added per year and 3,815 is the interest amount)

35,000 + 26,705 = 61,705 ( the original loan plus the interest for 7 years)

A small tree was planted at a height of 5 feet. The tree has been planted for 16 months, and is now 61 feet tall. Which equation could
be used to find x, the average number of feet the tree grew each month?
A. 5x + 16 = 61

B.16x + 5 = 61
C. 61x + 5 = 16
D. 16x + 61 = 5

Answers

Answer:

B

Step-by-step explanation:

Find the area of the parallelogram. 9 m 2 m A = b.h • 9 m?​

Answers

Answer:

2.9

18 [tex]m^{2}[/tex]

Step-by-step explanation:

find the 12th term of the geometric sequence 5,20,80

Answers

20,971,520 is the answer I believe so

Answer:

20971520

Step-by-step explanation:

Thank me later

Find the value of x.

Can someone help please?

Answers

5 I think it’s the only right answer

please answer no links

Answers

Answer:

56.54in^2

Step-by-step explanation:

Answer:

18π in^2 (roughly 56.5 in^2)

Step-by-step explanation:

The area of a semicircle is half the area of a circle. So the area would be 1/2πr² instead of πr².

Since the diameter is 12 inches, the radius would be half of that, making the radius r=12/2=6 inches.

Plugging in r=6 into our formula, we see that the area of the semicircle is 1/2π(6)²=1/2π(36)=18π inches^2

So your final area is 18π in^2 (roughly 56.5 in^2)

You throw two dice. What is the probability of rolling a sum of 6 given that you rolled a sum that is greater than 4?Ill give BRAINLEST to best answer with explanation

Answers

Answer:

8/12

Step-by-step explanation:

if you have 2 dice and roll them t the same time you have 11 possible outcomes. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12. If you roll something higher then a 4 then you get left with 5, 6, 7, 8, 9, 10, 11, 12. If you count them there is 8 different outcomes you can get out of the 2 dice since the highest you can roll is a 12.

PLEASE HELP NOWWWWWWWWWWWW

Answers

Answer:

25?

Step-by-step explanation:

Find the volume

A. 150 cm3

B. 180 cm3

C. 90 cm3

D. 90 cm2

Answers

Answer:

268 in²

Step-by-step explanation:

The surface area is basically the entire area of the figure. You can do it multiple ways, but this is how I did it. I found the area of each side and added them all together. There are three sets of identical sides. First, we'll calculate the area of the side with lengths 10" and 8".

10 · 8 = 80

There are two of these sides, so currently we have 80 + 80.

Next, the area of the sides with lengths 8" and 3". These are the sides at the top and bottom.

8 · 3 = 24

So to our equation we now have 80 + 80 + 24 +24.

For the final two sides, we have the dimensions 10" and 3".

10 · 3 = 30

To our equation, we add this to get 80 + 80 + 24 + 24 + 30 +30.

Add all these numbers together for 268.

In the correct form, we add the square symbol to show that we are talking about area. The answer is 268 in². Good luck :D

what is the height of a rectangular prism that has a volume of 2880 cubic inches and a base of 240 inches

Answers

Answer:

h = 12 in

Step-by-step explanation:

To find the height, divide the volume by the base:

              2880 in^3

height:  ------------------ = 12 in

                  240 in

please show all work

Answers

Answer:

[tex]x=21.6[/tex]

Step-by-step explanation:

Use the Pythagorean theorem to solve this problem. The Pythagorean theorem states the following,

[tex]a^2 + b^c = c^2[/tex]

Where (a) and (b) are the legs or the sides adjacent to the right angle, and (c) is the hypotenuse or the side opposite the right angle.

Use the Pythagorean theorem in the right triangle with legs (15) and (18),

[tex](15)^2+(18)^2=c^2\\\\225 + 324=c^2\\\\549=c^2\\\\\sqrt{549}=c[/tex]

Use the Pythagorean theorem again in the right triangle with the legs (18) and (x)

[tex](x)^2+(18)^2=c^2\\\\\sqrt{x^2+324}=c[/tex]

Use the Pythagorean theorem one final time in the larger triangle,

[tex](\sqrt{x^2+324})^2+(\sqrt{549})^2=(x+15)^2\\[/tex]

Simplify, remember that anything to the power (2) is equal to the base (number under the exponent) times itself,

[tex]x^2+324+549=x^2+30x+225[/tex]

[tex]x^2+873=x^2+30x+225[/tex]

Inverse operations,

[tex]x^2+873=x^2+30x+225\\-x^2\\\\873=30x+225\\-225\\\\648=30x\\/30\\\\\frac{648}{30}=x\\\\21.6=x[/tex]

What is the probability that the dice shows a 2?​

Answers

Answer:

1/6

Step-by-step explanation:

the probability of rolling a 2 is 1/6

Vani signed up for a streaming music service that costs $12 per month. The service allows Vani to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $1.25 per song. How much total money would Vani have to pay in a month in which she downloaded 30 songs? How much would she have to pay if she downloaded s songs?

Answers

Answer:

49.5$

Step-by-step explanation:

first you need to multiply 1.25*30 which will give you 37.5 then from there add the monthly cost which is 12$ giving you the total of 49.5$

A right triangle has side lengths of 20, 21, and 29 centimeters. The angle formed at the intersection of the 21 cm and 29 cm sides is labeled x. Find sin x.

answer choices:
20/29

21/29

20/21

29/21

Answers

The answer is 20/29 and 21-29

SOMEONE PLS HELP ME FIND THE AREA OF THIS COMPOSITE FIGURE. ILL GIVE BRAINLIEST!

Answers

For this composite question you will need to divide the shape into two different shapes. The large rectangle is going to be 60 in square because of base times height and then you would need to find the square which would be 4 times 4 cause of base times height but because it’s a triable you divide by 3 so 16/2 would be 8 than you would add both shapes and get 68 in squared. Hope that helps!

A tree in Aldo's backyard has been growing for 2 2/5 years. The tree is 1/4 meters tall. What is the unit rate in meters per year? please I need this answer fast!!!

Answers

Answer:

The correct answer is D

Step-by-step explanation:

The division is one of the four fundamental arithmetic operations. The unit rate in meters per year is 0.10417.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given A tree in Aldo's backyard has been growing for 2 2/5 years. Also, the tree is 1/4 meters tall. Therefore,  the unit rate in meters per year can be written as,

[tex]{\rm Unit\ rate} = \dfrac{\frac14}{2\frac25} = \dfrac{1}{4} \times \dfrac{5}{12} = 0.10417[/tex]

Hence, the unit rate in meters per year is 0.10417.

Learn more about Division:

https://brainly.com/question/369266

#SPJ2

Triangle ABC is similar to triangle WYZ.

Determine whether the following statement is true or false.

sin(B)>sin(Y)
true
false

Answers

True, because they are congruent.

The solution is, the following statement is, False.

What is triangle?

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

here, we have,

given that,

Triangle ABC is similar to triangle WYZ.

now, we get,

Corresponding angles in similar triangles are congruent.

The similarity statement tells you angle B corresponds to angle Y,

so those angles are congruent.

The sines of congruent angles are identical.

so, we have,

 sin(B) > sin(Y) . . . . FALSE

 sin(B) = sin(Y) . . . . true

Hence, The solution is, the following statement is, False.

To learn more on triangle click:

brainly.com/question/29126067

#SPJ3

Find values for p and q so that the equation has infinitely many solutions.
px - 2 = 4x + x + 9
p =

Answers

Px-2= 4x+x+9

First what you should do is subtract the 2 on both sides

You’ll get px = 4x+x+7 then add the x to 4x

Px= 4x^2 +7

Dived the x on the left on both sides like this px/x = 4x^2+7/x

P= 4x+7

Find mZKLM.
L
M
K
Answer: m KLM

Answers

Angle KLM = 86 hope that helps

A bag contains to White blocks and one red block and 3 purple blocks what is the sample space of picking a block from the bag

Answers

Answer:

1/36

Step-by-step explanation:

Probability is the likelihood of chance that an event will occur. Mathematically,

Probability = expected outcome/total outcome

If a bag contains two white blocks, one red block and 3 purple block

Total outcome = 2+1+3= 6

Probability that white ball is selected = 2/6

Probability that red ball is selected = 1/6

Probability that white ball is selected = 3/6

Probability of picking a ball is 2/6 × 1/6 × 3/6

Probability of picking a ball = 6/216

Probability of picking a ball = 1/36

Choose the correct choice for the product Tu:
f
[1]
o
O Undefined
DONE
The resulting matrix creates an image that is a
reflection across the
DONE

Answers

Answer:

[-1,4] and line y = -x

Step-by-step explanation:

Answer:

B. [tex]\left[\begin{array}{ccc}1\\-4\end{array}\right][/tex]

B. line y = -x

Step-by-step explanation:

edge :)

have a lovely day <3

Name that meme
-100 points

Answers

Answer:

Big Chungus

Step-by-step explanation:

Doesn't really need any explanition.

Answer:

its big chungus yuhhhh

The circumference of a circle is 18π in. What is the area, in square inches? Express your answer in terms of \piπ.

Answers

Answer:

A = 81π

Step-by-step explanation:

if circumference is 18π then diameter is 18 and radius is 9

A = πr²

A = 9²π or 81π

A glider plane travels 120 miles in 2 hours. At that rate, how many hours will it take the plane to travel 300 miles?

10 hours

2 1/2 hours

5 hours

1 1/4

Answers

The answer is C.........

Can someone plz help me with this one problem!!?

Answers

Answer:

1

Step-by-step explanation:

Ok so since two of the sides are 1, that means 2 to make it 3 you need to label the other side 1.

Is 4.5 - (-3.5)positive negative or zero

Answers

Answer:

Positive

Step-by-step explanation:

Two minus signs = +

- - = +

Replace the -- with +

4.5+3.5 = 8

Ms. Sze is grading math tests. A student’s work on a problem is given
below

Answers

Answer:

No the student is not correct because the answer is 0.4761. All the student did was wrong was the adding up the zeros.

Step-by-step explanation:

5/8 divided by 9
help

Answers

Answer:

5/72

Step-by-step explanation:

dividing is equivalent to multiplying by the reciprocal

5/8×1/9

multiply the fraction

8×9=72

5×1=5

Answer: 5/72

Answer:

5/8 / 9 = 5/72

Step-by-step explanation:

5/8 / 9 = 5/72

Anytime you divide with a fraction remember this:

Same, change, flip:

You keep the first fraction, which is 5/8, the same.

Then you change the division sign to a multiplication sign.

After that, you flip the 9/1 (which is the same thing as 9) to 1/9.

So it would be 5/8 x 1/9.

If you multiply that, you can 5/72.

Therefore, 5/72 is your answer.

I hope this helped.

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