The mean of a set of numbers is found by adding the values and dividing by the number of values. What is the mean of this set of gymnastic scores?


7.4, 7.1, 3.3, 9.1, 8.2

Answer:

yes

Step-by-step explanation:

16:45 = 15:45

\(\frac{16}{48}\) = \(\frac{15}{45}\)

3=3

Answer:

yes

Step-by-step explanation:

Answer:

The answer is D.

Step-by-step explanation:

y = mx + b

C = 5/9 (F - 32)

C = 5/9F - 5/9 (32)

Option (D) is correct.

Answer:

120°

Step-by-step explanation:

To find angle BCD, we need to spot that the angle is on a straight line (ACD); angles on a straight line add up to 180°. This means we can find the missing angle by doing 180 - 60 which is 120°.

Hope this helps!

Answer:

Step-by-step explanation:

Commutative propriety really means you can change (commute) the order you add or multiply numbers and the result will be the same

ab = ba

x+18 = 18+ x

Associative propriety means you can add in any order

3+(a+b) = (3+a) + b

Combine like terms is 8 of something - 3 of the same thing is 5 of something

8x^4  - 3x^4 = 5x^4

only the terms with b are the same kind

9b+ 4b -14 = 13b -14

Answer:

26

Step-by-step explanation:

35 - 9 = 26

Answer:

? = 22.6

Step-by-step explanation:

35²-15² = x²

1225-225 = 1000

√1000 = 31.6

31.6 - 9 = 22.6

Answer:

TRUE

Step-by-step explanation:

Answer:

TRUE

Step-by-step explanation:

Answer:

1) A = π(14 cm)² = 196π cm²

= about 616 cm²

2) A = π(7.5 ft)² = (15/2)²π ft² = 225π/4 ft²

= about 177 ft²

Answer:

Step-by-step explanation:

You want the areas of the circle figures:

The area of a circle is given by the formulas ...

  A = πr² = (π/4)d² . . . . . where r is the radius, d is the diameter = 2r

The area of the circle of radius 14 cm is ...

  A = π(14 cm)² ≈ 616 cm²

The area of the target with diameter 1.5 ft is ...

  A = (π/4)(1.5 ft)² ≈ 1.77 ft²

The area of a 12-inch tortilla is ...

  A = (π/4)(12 in)² ≈ 113.10 in²

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Answer:

4

Step-by-step explanation:

6/7 ÷ 3/14

Copy dot flip

6/7 * 14/3

Rewriting

6/3 * 14/7

2*2

4

Answer:

84/21

Step-by-step explanation:

to divide a fraction by another fraction, you must take the reciprocal of the second fraction (3/14 to 14/3) and then multiply the two fractions.

Answer:

9.75 - the second one

Step-by-step explanation:

65 × 150 = 9750

to convert from ml to l you divide by 1000

9750 ÷ 1000 = 9.75

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

It is the Least Common Denominator of all the fractions, therefore eliminating all the fractions.

Answer:

155+27n

Step-by-step explanation:

hope this helps

Answer:

142 I hope that helpes

Step-by-step explanation:

30+15= 45 and 85+12= 97  45+97= 142

Answer:

b

Step-by-step explanation:

cuz trust

Answer:

x=−18.849556r2+v/6.283185r

Step-by-step explanation:

Step 1: Flip the equation.

18.849556r2+6.283185rx=v

Step 2: Add -18.849556r^2 to both sides.

18.849556r2+6.283185rx+−18.849556r2=v+−18.849556r2

0r 2+6.283185rx=−18.849556r2+v

Step 3: Divide both sides by 6.283185r. 0r2+6.283185rx/

6.283185r = −18.849556r2+v/6.283185r

x=−18.849556r2+v/6.283185r

Let's see

\(\\ \rm\Rrightarrow V=2\pi rx+6\pi r^2\)

\(\\ \rm\Rrightarrow V=2\pi r(x+3r)\)

\(\\ \rm\Rrightarrow \dfrac{V}{2\pi r}=x+3r\)

\(\\ \rm\Rrightarrow x=\dfrac{V}{2\pi r}-3r\)

Answer:

.1

Step-by-step explanation:

14.5-14.4=.1

Answer:

2784 miles.

Step-by-step explanation:

In 1 day, they drove 232 miles.

In 12 days, they drove (232×12) miles

                                     = 2784 miles.

Answer:

r = 1

Step-by-step explanation:

The equation is,

→ 6r - 1 + 6r = 11

Now the value of r will be,

→ 6r - 1 + 6r = 11

→ 12r = 11 + 1

→ r = 12/12

→ [ r = 1 ]

Hence, the value of r is 1.

Answer:

The answer is 1 r is equal to 1

Step-by-step explanation:

Answer:

The answer to your problem is, B. a circle graph titled social media usage, with four sections labeled vidtok 17 percent, headbook 48 percent, picturegram 25 percent, and tweeter 10 percent

Step-by-step explanation:

By adding all the numbers you get 500, but you need to make it 100% so you divide the total number by five. To know what percent out of 100 you need to divide all of the variables by 5.

85 ÷ 5 = 172

40 ÷ 5 = 48

125 ÷ 5 = 25

50 ÷ 5 = 10

Thus the answer to your problem is, B. a circle graph titled social media usage, with four sections labeled vidtok 17 percent, headbook 48 percent, picturegram 25 percent, and tweeter 10 percent

Answer:

The answer is -58.

Step-by-step explanation:

If both numbers are negative, add the two numbers and add the negative sign in later.

Answer:

Step-by-step explanation:

The given lines are

\(2x-4y=8\)

\(4x+2y=8\)

Let's rewrite each equation in the form \(y=mx+b\)

\(2x-4y=8\\2x-8=+4y\\y=\frac{2x-8}{4} \\y=\frac{x}{2}-2\)

\(4x+2y=8\\2y=8-4x\\y=\frac{8-4x}{2}\\ y=4-2x\)

Now, let's use the perpendicular rule

\(m_{1} \times m_{2} =-1\\\frac{1}{2} \times (-2)=-1 \implies -1=-1\)

As you can observe, the slopes satisfy the perpendicular rule, that means the lines are perpendicular.

Therefore, the right answer is the second choice because it states the rule of perpendicularity between the given lines.

Answer:

They are perpendicular because they have slopes that are opposite reciprocals of −2 and .

Step-by-step explanation:

I took the test and the dot is 1/2

Answer:

w=-1

Step-by-step explanation:

Answer: None of them. The're both negative.

Answer: The ratio is 18:3

Step-by-step explanation:

Answer:  6 to 1

Step-by-step explanation:

A ratio refers to a fraction. In this case the question asks how many players to coaches there are.

The word "to" means that is where the fraction bar goes.

Players/Coaches

There are 18 players and 3 coaches.

18/3

18 can be divided by 3, 6 times so the fraction can be simplified to

6/1 meaning there are 6 players for every coach.

Answer:

4

Step-by-step explanation:

The cube root of 64 is the number which when multiplied by itself three times gives the product as 64. Since 64 can be expressed as 2 × 2 × 2 × 2 × 2 × 2. Therefore, the cube root of 64 = ∛(2 × 2 × 2 × 2 × 2 × 2) = 4.

The cube root of 64 is 4.

Before solving the question, let's understand the concept of cube root.

The cube root of a number is the value obtained by multiplying it by itself three times or thrice. When we multiply 3 by itself three times, we get 3 x 3 x 3 = 27 = 3³, so the cube root of 27 is 3. Thus, we can say that the cube root gives a value that is basically cubed.

The cube root is denoted by ∛

Now, we will find the cube root of 64.

Firstly, we have to find factor 64.

64 = 2 × 2 × 2 × 2 × 2 × 2.

64 = ∛4³

64 = 4

Therefore, the cube root of 64 is 4.

To know more about cube root:

https://brainly.com/question/12105008

Answer:

The angles are complementary; X = 15

Step-by-step explanation:

When angles are complementary, they always add up to 90 degrees angles, which is a right angle. Supplementary angles add up to 180 degree angles, which is a straight line. When telling the difference, my math teacher taught me to remember the saying "complementing is always the right thing to do" (it's corny, I know, but it worked for me lol)

To find x, you would do 90 minus the other angle, which is 45, to get 45. Then, you would divide by 3, to get 15 as x.

Karolina needs $125 to purchase a bicycle.

If she has saved 40% of the total amount needed, then the amount she has saved can be calculated as:

40% of $125 = (40/100) x $125 = $50

Therefore, Karolina has saved $50.

Answer:

$50

Step-by-step explanation:

If the bicycle costs $125, and Karolina has saved 40% of that amount, then she has saved:

40/100 x $125 = $50

Therefore, Karolina has saved $50 towards the purchase of the bicycle.

Answer:yes

Step-by-step explanation: