Find The greatest common Factor of 7, 15, 21

Answers

Answer 1

Answer:

1

Step-by-step explanation:

1. List the prime factors of each number.

2. Circle every common prime factor — that is, every prime factor that's a factor of every number in the set.

3. Multiply all the circled numbers. The result is the GCF.

Answer 2

Answer:

1

Step-by-step explanation:


Related Questions

Find y
Round to the nearest tenth:
28°
X
350 ft
y
y = [ ? ]ft
Enter

Answers

Answer:

y = 658.3 ft

Step-by-step explanation:

Angle of depression = angle of elevation = 28° (alternate angles are congruent)

Reference angle = 28°

Side length opposite to reference angle = 350 ft

Adjacent = y

Apply trigonometric function, TOA:

Tan 28 = Opp/Adj

Tan 28 = 350/y

y*Tan 28 = 350

y = 350/Tan 28

y = 658.254263 ≈ 658.3 ft (nearest tenth)

Adrian is thinking of different decimal numbers. He gives the following clues

- Each decimal is smaller than 1
- The tenth digits in each decimal is odd.
- when the decimals are converted to fractions, the numerators total 15.

what decimal numbers could adrian be thinking of? find all the possibilites.

Answers

Answers:

Some possible answers are: 0.15, 0.3, and 0.75

Step-by-step explanation:

[tex]0.15=15/100[/tex]

[tex]0.3=15/50[/tex]

[tex]0.75=15/20[/tex]

22. A figure is shown.
8x
7x
44.40
What is the measure, in degrees, of the highlighted angle?

Answers

Answer: 9.04

Step-by-step explanation:

Lauren bought 4 bags of popcorn for $3. What is the unit rate per bag of popcorn?

Answers

the unit rate is 75 cents or 0.75

Footlocker in the mall is having a 25% off sale on all tennis shoes. Joe paid $67.50 for his
favorite tennis shoes that were on sale. What was the original price of the shoes?

Answers

Answer:

The original price of the shoes was $90.

Step-by-step explanation:

25% off means the price Joe paid for it is 75% of the original price.

Set up an equation:

75/100 = 67.50/x

Cross multiply

75 × x = 100 × 67.50

75x = 6750

x = 90

Check our work:

First solve for 25% off of 90 (our answer).

25% = 0.25

90 × 0.25 = 22.50

Next, subtract the discount from 90.

90 - 22.50 = 67.50

67.50 was what Joe paid so this is correct.

Chrissy said, "on summer vacation i spent 2 1/2 weeks with my uncle and three weeks more with my aunt than with my uncle." How many weeks did she spend with her uncle and her aunt? Use fraction strips or number lines to find the sum.

Answers

8 weeks because 2 1/2 plus 2 1/2 plus 3 is 8.

7 x what = 315?????????????

Answers

Answer:

7 × x = 315

x = 315 ÷ 7

x = 45

45 is the answer.

Answer:

45

Step-by-step explanation:

315 ÷ 7 = 45

what percent of 29 is 3 in equation form

Answers

Answer:

3=p*29

Step-by-step explanation:

Answer:

0.87

Step-by-step explanation:

(29×3) ÷ 100

but I'm not sure):

Kaitlyn sells mini donuts by the box size. The amount of space in the boxes is known as the ________. A. Volume B. Area C. Perimeter

Answers

Answer: Area

Step-by-step explanation:

god bless

If you car gets 25 mpg (miles per gallon), how many gallons do you need to buy to drive 375 miles?

Answers

Answer:15

Step-by-step explanation:

375/25=15

Answer:

The answer is 15.

375 ÷ 25 = 15.

Hope this helps!!

Which of the following is NOT a negative result of unemployment?
A. promotion
B. anxiety
C. depression
D. subsidized housing

Answers

Answer: A

Step-by-step explanation: Promoting somebody is not a bad result of unemployment it might just mean you got transferred to another store.

It’s probably D but if not then it’s A

Carol is on the school track team. To prepare for upcoming race,he plans to run 217 miles total over the next 31 days.

Answers

217 divided by 31= 7

A cartographer used a scale of 1 inch:300 meters for the heights of different mountains. If the actual height of one of those mountains is 3,600 meters, what is its height on the map?​

Answers

Answer:

The height on the map is of 12 inches.

Step-by-step explanation:

Scale of 1 inch:300 meters

This means that each inch on the map represents 300 meters of real height.

If the actual height of one of those mountains is 3,600 meters, what is its height on the map?​

Using proportions, by a rule of three:

1 inch - 300 meters

x inches - 3600 meters

Applying cross multiplication:

[tex]300x = 3600[/tex]

[tex]x = \frac{3600}{300}[/tex]

[tex]x = 12[/tex]

The height on the map is of 12 inches.

please help ASAPPPPP 13 points

Answers

Answer:

x^5/3y^1/3- 2nd option

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Just divide the exponent by 3

WHICH TWO FUNCTIONS REPRESENT EXPONENTIAL DECAY?​

Answers

Answer:

maybe third and first? ıdk :((

Answer:

first and third kind of two functions represent exponential decay.

18. A balloon artist wants to make 6 different
kinds of balloon animals. She needs
4 balloons to make each animal. If the
balloons come in packs of 8, how many
packs will she need to buy?

Answers

Answer:

She need 3 packs of balloons

Answer the question in the pic

Answers

Answer:

no

Step-by-step explanation:

using Pythagoreans theorem

a^2+b^2=c^2

3^2+5^2≈6^2

9+15=34

not 36 so no

Answer :

Here, It is stated that the triangle having sides 3, 5 and 6 respectively. So, we have to prove that whether the given triangle is right angled triangle or not.

For That :

We will be using the Pythagoras Theorem

Given Sides :-

Side - A → 3

Side - B → 5

Side - C → 6

According to the Pythagoras Theorem , the sum of the square of Base side and perpendicular side is equal to the square of the longest side i.e, hypotenuse.

Pythagoras Theorem :

⠀⠀⠀⠀⠀⠀[tex]{\bullet \: {\boxed{\sf {AC^{2} = AB^{2} + BC^{2}}}}} \\ \\ [/tex]

So, here the longest side is Side A of measurement 6.

So, Now

Applying Pythagoras Theorem in it, we get :

The three sides , so let's plug the values in the formula :-

[tex]\dashrightarrow\:\:\sf AC^{2} = AB^{2} + BC^{2}\\ \\[/tex]

[tex]\dashrightarrow\:\:\sf 6^{2} = 3^{2} + 5^{2}\\ \\[/tex]

[tex]\dashrightarrow\:\:\sf 36 = 9 + 5^{2}\\ \\[/tex]

[tex]\dashrightarrow\:\:\sf 36 = 9 + 25 \\ \\[/tex]

[tex]\dashrightarrow\:\:\sf 36 \neq 34 \\ \\[/tex]

[tex]{\underline{\sf {L.H.S \neq R.H.S}}} \\ [/tex]

If in a triangle, the square of the hypotenuse is not equal to the sum of the squares of the other two sides, then the given triangle and doesn't satisfy pythagoras theorem. Hence, Its not a right angled triangle.

Find the area of a pentagon with an apothem of 7.3 and a side length of
10.6. Round to the nearest tenth if necessary.

Answers

9514 1404 393

Answer:

  193.5 square units

Step-by-step explanation:

The area formula for this situation is ...

  A = 1/2Pa

where P is the perimeter of the regular polygon, and 'a' is its apothem. For a pentagon, the perimeter is 5 times the side length, so the area is ...

  A = (1/2)(5×10.6)(7.3) = 193.45

To the nearest tenth, the area is 193.5 square units.

Using 50 observations, the following regression output is obtained from estimating y = β0 + β1x + β2d1 + β3d2 + ε. Coefficients Standard Error t Stat p-value Intercept −0.81 0.36 −2.25 0.0293 x 2.94 1.20 2.45 0.0182 d1 −13.00 16.25 −0.80 0.4278 d2 5.52 1.50 3.68 0.0006 a. Compute yˆ for x = 262, d1 = 1, and d2 = 0; compute yˆ for x = 262, d1 = 0, and d2 = 1. (Round your answers to 2 decimal places.) yˆ x = 262, d1 = 1 and d2 = 0 x = 262, d1 = 0 and d2 = 1

Answers

Answer:

The answer is "789.03 and 806.16".

Step-by-step explanation:

[tex]y\^ \ \ = -0.45 + 3.78(x) -11.88(d_1) + 5.25(d_2)[/tex]

For point a:

Calculating the value for [tex]y\^ \ \ x = 212,\ \ d_1 = 1, and \ \ d_2 = 0[/tex]

[tex]y\^ = -0.45 + 3.78(212) -11.88(1) + 5.25(0)[/tex]

     [tex]= -0.45 + 801.36 -11.88 + 0\\\\= 789.03[/tex]  

For point b:

Calculating the value of [tex]y\^ \ \ for \ \ x = 212, \ \ d_1 = 0, and \ \ d_2 = 1[/tex]

[tex]y\^ = -0.45 + 3.78(212) -11.88(0) + 5.25(1)[/tex]  

    [tex]= -0.45 + 801.36 -0 + 5.25\\\\= 806.16[/tex]

Brianna earns $19,500 per year. Lisa earns $1000 per month. Write a numerical expression that represents how much more Brianna earns per year than Lisa

Answers

Answer:

$19,500 - $1000

Step-by-step explanation:

the amount Brianna earns in excess of the amount Lisa earns can be determined by subtracting the amount Brianna earns from that Lisa earns

$19,500 - $1000 = $18,500

The law of large numbers tells us that the distribution of a large random sample should resemble the distribution from which it is drawn.

a. True
b. False

Answers

Answer:

b. False

Step-by-step explanation:

The law of large numbers, in statistics, says that the experimental average found in a large number of trials should be very close to the theoretical probability. It does not say anything about distribution. So the answer to this question is False, which is given by option b.

Mercedes is helmet diving at a location of -20 feet. The breathing tube attached to her helmet reaches an oxygen tank at a location of 12 feet.

Which of the following expressions represents
the length, in feet, of the breathing tube attached
to Mercedes' helmet?

(A) |--20 – 12

(B) |--20 + 12

(C) 20 – 12

(D) -20 + 12

Answers

Answer: B

Step-by-step explanation:

If Jacob's salary of $2,100 per month is increased by 5%, what is her new monthly salary?

Answers

Answer:

2,205

Step-by-step explanation:

What is the approximate volume, in cubic inches, of a basketball with a diameter of 9 inches?
O 3,053.63
O 858.91
О 214.71
O 381.70

Answers

Answer:

858.91

Step-by-step explanation:

What is the length of BC?
5
12
A.7
B.12
C.13
D.17

Answers

Answer:

its A. 7

Step-by-step explanation:

A circular clock with a circumference of 88cm is mounted on a wall.How much area of a wall didn't occupy​

Answers

Answer:

616 cm^2

Step-by-step explanation:

Steps to derive the answer

1. we are going to first determine the radius from the circumference

2. we would calculate the area

Circumference of a circle = 2nr

n = 22/7

r = radius

88 = 2 x 22/7 x r

Divide both sides of the equation by 2 x 7/22

r = 14

Area of a circle = nr^2

3.14 x 14^2 = 616 cm^2

Please help
Which of the following...

Answers

Answer:

<7

Step-by-step explanation:

Answer:

<7

Step-by-step explanation:

I think anything across wouldnt be congruent

The length of a rectangular garden is 8m greater than twice the width the area of the garden is 280m^2 what is the width of the garden

Answers

Step-by-step explanation:

Given :-

The length of the garden 8m greater than 2 times the width.

Area of the garden is 280 m²

Let us consider the length as x and width as y.

Sp, we can day length as :-

x = 8 + 2y ---(1)

Now, we know that:-

Area of Rectangle = Length × Breadth

280 = x * y

We can replace the value of x now,

280 = y × ( 8 + 2y)

280 = 8y + 2y²

2y² + 8y - 280 = 0

y² + 4y - 140 = 0

Factorise it.

(y -10)(y + 14)

Cancelling -ve value, we get the width as 10 metres.

Hope it helps :)

Answer:

Step-by-step explanation:

Width = w

Length = 2w + 8

Area of rectangular garden = 280 square meter

length * width = 280

(2w + 8 ) *w = 280

2w * w + 8*w = 280

2w² + 8w = 280

2w² + 8w - 280 = 0

Divide the whole equation by 2

w² + 4w - 140 = 0      

w² + 14w - 10w - 14 *10 = 0

w(w + 14) - 10(w + 14) = 0

(w + 14)(w - 10)= 0

w - 10 = 0       {Ignore w + 14, as measurements will not be -ve}

w = 10 m

l = 2*10 +8

= 20 +8

l  = 28 m

Cos Y=?

5/13

5/12

12/13

Answers

Answer:

Cos Y = 12/13

Step-by-step explanation:

Recall, SOHCAHTOA.

Cos Y = Adjacent/Hypotenuse

Reference angle = Y

Adjacent = 12

Hypotenuse = 13

Therefore:

Cos Y = 12/13

A farmer, Mrs. Many, grows and sells two popular varieties of tomatoes: Better Boy tomatoes and Big Beef tomatoes. Both varieties of tomato take about 75 days to mature. She is designing a study to test the effectiveness of a new soil additive to increase tomato growth. She has 40 Better Boy tomatoes and 60 Big Beef tomatoes for her experiment.

Required:
a. Preliminary research suggests that Better Boy tomatoes and Big Beef tomatoes respond differently to the additive. What sort of experimental design would you choose for this study, and why?
b. Explain why an experiment involving 40 Better Boy tomatoes and 60 Big Beef tomatoes is preferable to one involving 4 Better Boy tomatoes and 6 Big Beef tomatoes.
c. Describe a design for this experiment. Be sure to include a description of how you assign individuals to the treatment groups.

Answers

Answer:

I believe the answer is B tell me if I'm correct please

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