Are they correct? Why or why not? answer correctly thank you 10 points.

Answer:

3.14

Step-by-step explanation:

The five dollars subtracting what he had left. so that gives you 3.14

☭

Answer:

the ansere is -20

Step-by-step explana

The speed is given by the arithmetic mean. Then the jet Alyssa's average speed on the round trip is 540.

The total distance covered by the particle or the body in a total time is called average speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the average speed formula

[tex]\rm v_{a} = \dfrac{v_1+ v_2}{2}[/tex]

The speed of the jet Alyssa flew on from Boston to London was 480 mph.

On her return flight, the speed of the jet was 600 mph with a tailwind.

Then the average speed of the jet will be

[tex]\rm v_{a} = \dfrac{v_1+ v_2}{2}\\\\v_{a} = \dfrac{480 + 600}{2}\\\\v_{a} = 540\ mph[/tex]

More about the average speed link is given below.

https://brainly.com/question/7359669

Answer:

here-

Step-by-step explanation:

hope it helped-

Answer:

now u can make the other person brainliestttt :DD

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Its the odd one out

Answer:

94 in, or about a 25% decrease.

Step-by-step explanation:

Starting surface area- 384

Decreased surface area- 290

384-290=94

To go from 384 to 290 would be a 24.48% decrease.

Answer:

c

Step-by-step explanation:

$21.83

hope this helps :))

Answer:

B but am not really sure

Step-by-step explanation:

Answer: C) He should also take a sample from each of the other history classes in all of the other grades in the middle school.

Step-by-step explanation:

In order for his sample to be representative of all middle school students Leo: C) Should also take a sample from each of the other history classes in all of the other grades in the middle school.

Sample can be defined as the data that is randomly collected by a researcher so as to reach or draw a conclusion.

Since only one grade is being surveyed which is Mr. Barnes’s eighth-grade history classes, he should as well carryout the survey on Ms. Lopez and Mrs. Frank history class.

Inconclusion he should also take a sample from each of the other history classes in all of the other grades in the middle school.

Not only students in the 8th grade are in the middle school, there are other students in other grades who are in the middle school and are enrolled in history classes. Leo's sample is only from one grade of the middle school. In fact, including Ms. Lopez's and Mrs. Frank's classes in the selection of sample is not sufficient. Leo has to take a sample from the remaining grades to avoid making a wrong conclusion as a result of bias in the choice of data.

Answer:they are very different

Step-by-step explanation:

They are too far apart

Answer:

3:4

Step-by-step explanation:

Answer:

I can only help you with the first on the answer is:

Step-by-step explanation:

7/8 * 3/4 = 21/32 which can't be simplified any further

Answer:

Total amount = 7x + 25

Step-by-step explanation:

Assuming that week can be denoted by a variable, in this case, x. Also assume that the total amount owned is denoted by the variable, y.

Note that $25 is the constant, meaning that that amount will not change. Norm would technically have at least $25 regardless of how much week passes.

The amount that changes per week is the addition of $7.

Set the equation:

Total amount = ($7 per week x  amount of week(s)) + starting amount (constant).

Total amount = 7x + 25

~

Step-by-step explanation:

Answer attached..

Answer:

1864 Remainder 2

Step-by-step explanation:
1864R2
______

5|9322
-5

= 43

-40

=. 32

-30

=. 22

-20

=. 2

Answer:

add them all togther then subtract them by 50

Step-by-step explanation:

Answer:

Unknown, not enough information.

How much do the books cost?

Answer:

The answer is b= 8

Answer:

a) 305 people

b) Friday to Sunday

Step-by-step explanation:

A. The highest point that the graph reaches is 305

B. The biggest decline is from Friday to Sunday.

To solve for the Principal amount, we will use the formula:

                            P = I / rt

P = principal amount; which is the amount that we will be solving for.

I = the interest accrued within the allotted time frame. ($160)

r = the interest rate percentage. (1.6%)

t = the time frame that the money will accrue interest. (2 years)

Before we can plug in the numbers into our formula, we need to convert our percent into a decimal. To do this, move the decimal two places to the left. This will leave us with 0.016. We'll use that for "r".

Let's plug in the numbers:

P = 160 / (0.016) (2)

Multiply your bottom numbers together for 0.016 x 2 =0.032

P = 160 / 0.032

Divide now.

160 ÷ 0.032 = 5,000.

This tells us that, Bert will need to deposit $5,000 into the savings account to earn $160 within 2 years with a 1.6% interest rate.

Answer:

38 in

Step-by-step explanation:

its hard to explain but ik im right ;-;

Answer:

step one!

Step-by-step explanation:

I could be wrong, let me know!

Answer:

A. KOL and LOM

Step-by-step explanation:

Adjacent angels must share a vertex and the same common side. KOL and LOM match both of these requirements.

Answer:

1385mm squared

Step-by-step explanation:

Area of Circle formula: A = pi r^2

You need to divide 42mm by 2 since that is a diameter.

*Half of the diameter is the radius*

42/2 = 21

Now, do 3.14 multiplied by 21 to the power of 2.

Formula: A = 3.14 x 21^2

Do 21^2 first.

That shall be 441

Now do 3.14 x 441

1,384.74mm - That is your exact answer.

The directions tell you to round it to the nearest whole number

THAT IS 1385mm squared

Answer:

A: 8 more 7th graders

B: 28%
C:  jump rope

Step-by-step explanation:

10-18= 8

10 out of 280 is 28%

Answer:

B. and D.

Step-by-step explanation:

I believe it's right because it is uniform and im pretty sure they are not the same though

The probability model for this situation is

The probabilities of the individual outcomes are the same.

and, The probability model for this situation is uniform.

The correct option is (C) and (D).

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.

Given:

A spinner has 5 equally sized sections labeled A, B, C, D, and E.

As,

P(A)= P(B)= P(C)= P(D)= P(E)= 1/5, which is same.

The probability model for this situation is uniform.

Hence, The probabilities of the individual outcomes are the same.

and, The probability model for this situation is uniform.

Learn more about probability here:

https://brainly.com/question/11234923

#SPJ2

Answer: Sorry if it's wrong I hope I helped you

Answer:

This equation is in standard form: ax 1+bx+c=0. Substitute 9 for a, 16 for b, and −112 for c in the quadratic formula 2a−b±b2−4ac.x= 2×9−16± 16^2−4×9(−112)Square 16.x=2×9−16±256−4×9(−112) Multiply −4 times 9.x=2×9−16± 256−36(−112) Multiply −36 times −112.x=2×9−16±256+4032 Add 256 to 4032.x=2×9−16±4288 Take the square root of 4288.x=2×9−16±8+67 Multiply 2 times 9x=18−16±8=67

Step-by-step explanation:

hope this help if not let me know