Peter drove 300 miles in 5 hours. Jane drove 400 miles in 8 hours. Who drove at a higher speed?

A.
Jane

B.
Peter

Answers

Answer 1

Answer: Peter = 300 /5=60mph
Jane = 400/8=50mph

Therefore Peter drove at a faster speed, so B.

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13.A student wishes to determine the percentage of students in his school that bring a sack lunch. He decides to poll every student in his grade level. It is found that 30 percent on the students polled bring a sack lunch. The student concludes that 30 percent of the students in the school bring a sack lunch. Identify the abuse of statistics.

bad sample

small sample

nonresponse

loaded question

Answers

Answer:

The answer is Bad sample.

Step-by-step explanation:

The student polls every student in his grade level. It is found that 30 percent on the students polled bring a sack lunch.

The student concludes that 30 percent of the students in the school bring a sack lunch.

Firstly, students of a single grade do not represent the entire school population. The student here asked every student of his class, so the sample was not random. It was biased and bad.

The collected data is not representative of the population, so it is a bad sample or bad sampling.

I would say this is considered small sample, because there is nothing really wrong with his survey in terms of quality. it's not like he only survey boys or girls, or like only survey rich or poor people. In other words, his survey is from a random pool, assuming the kids in his grade are mostly normal people. Therefore, I would say that if this person surveyed more people, then he'll get much better data.

If the circle in the diagram revolves about the vertical dashed line, which type of geometrical shape will it generate?

Answers

Answer: A solid ring

Step-by-step explanation:

From the given diagram, if the circle revolves about the vertical dashed line.

We can see that there is some distance between the circle and the vertical line, which is represented by horizontal dashed line.

So, when it revolves about the vertical dashed line, it will form a torus (donut shape).

A torus is nothing but the solid ring .

A torus is a surface of revolution generated by revolving a circle in three-dimensional space about an axis with the circle such that the axis of revolution does not touch the circle.

Hello,

If a solid ring is a TOR (tore in french , a room air )

then answer D

PLEASE ANSWER ASAP. WHOEVER ANSWERS CORRECTLY WILL GET BRAINLIEST! This is Part B, Part A is already posted!

Answers

Answer:

b) Create an equation to solve for x (type your equation below):

(4x + 8)° = 6x°

c) Find the value of x:

x = 4°

Explanation for (b):

(4x + 8)° and 6x° are vertically opposite angles, so they are equal.

Explanation for (c):

We got the equation from (b) as:

(4x + 8)° = 6x°

or, 6x - 4x = 8°

or, 2x = 8°

or, x = 4°

A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Find the angle formed between the ladder and the ground

Answers

θ=180cos−1(47)/π=55.1501 degrees

Solve the following:2(x+3)=x-4

Answers

To solve the equation 2(x+3) = x-4, you can follow these steps:

1. Distribute the 2 on the left side of the equation to both terms inside the parentheses:
2x + 6 = x - 4

2. Now, let's isolate x on one side of the equation. You can do this by subtracting x from both sides:
2x - x + 6 = -4

3. Simplify the left side by combining like terms (2x - x):
x + 6 = -4

4. To isolate x, subtract 6 from both sides of the equation:
x + 6 - 6 = -4 - 6

5. Simplify both sides:
x = -10

So, the solution to the equation is x = -10.

B) Write 1.74 x 10^4 as an ordinary number.