HELP ME PLEASEEEEEEEEEEEE

HELP ME PLEASEEEEEEEEEEEE

Answers

Answer 1

Answer:

A) 3.5 m

Step-by-step explanation:

3.5 x 2 = 7/2 = 3.5


Related Questions

Q3) There are 200 passengers on a plane. 84 of them are women and 12 are children.
What percentage of them are:
a) women
b) children
c) neither women nor children?

Answers

A. Women
Step 1: Divide 84 by 200
84/200 =

84 ÷ 200 =

0.42

Step 2: Convert the result to decimal
0.42 = 42%

B. Children
Step 1: Divide 12 by 200
12/200 =

12 ÷ 200 =

0.06

Step 2: Convert the result to decimal
0.06 = 6%

C. Other
Step 1: Add the given numbers
84 + 12 = 96

Step 2: Subtract the total from the result
200 - 96 = 104

Step 3: Divide 104 by 200
104/200 =

104 ÷ 200 =

0.52

Step 4: Convert 0.52 to decimal
0.52 = 52%

Each nickel is $0.05. Write and solve an equation to determine the total number of nickels needed to make $2.25

Answers

Answer:

you need 45 nickels

Step-by-step explanation:

to help consumers assess the risks they are taking, the food and drug administration (FDA) publishes the amount of nicotine found in all commerical brands of ciagrettes. a new ciagrette has recently been marketed. the FDA tests on this ciagrette yielded mean nicotine content of 24.3 milligrams and standard deviation of 2.1 milligrams for a sample of 9 ciagrettes. construct a 99% confidence interval for the mean nicotine content of this brand of ciagrette.

Answers

Answer:

The 99% confidence interval for the mean nicotine content of this brand of cigarette is between 21.95 and 26.65 milligrams.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 9 - 1 = 8

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 8 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.99}{2} = 0.995[/tex]. So we have T = 3.3554

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 3.3554\frac{2.1}{\sqrt{9}} = 2.35[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 24.3 - 2.35 = 21.95 milligrams

The upper end of the interval is the sample mean added to M. So it is 24.3 + 2.35 = 26.65 milligrams

The 99% confidence interval for the mean nicotine content of this brand of cigarette is between 21.95 and 26.65 milligrams.

Help pls 15 points!!

Answers

Answer:

i think its num 4

Step-by-step explanation:

You are going to estimate how long a person holds down a button on their calculator by randomly selecting people and asking them to do something on your calculator (which has a special timer to record how long the enter button is pressed). You practiced on the people at work and found a standard deviation of about 0.37 seconds. You want to get a 94% confidence interval that is only 0.06 in width. How many people do you need to have in your study

Answers

Answer:

You need to have 538 people in your study.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.94}{2} = 0.03[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.03 = 0.97[/tex], so Z = 1.88.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

You practiced on the people at work and found a standard deviation of about 0.37 seconds.

This means that [tex]\sigma = 0.37[/tex]

You want to get a 94% confidence interval that is only 0.06 in width.

This means that [tex]M = \frac{0.06}{2} = 0.03[/tex]

How many people do you need to have in your study?

This is n for which M = 0.03. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]0.03 = 1.88\frac{0.37}{\sqrt{n}}[/tex]

[tex]0.03\sqrt{n} = 1.88*0.37[/tex]

[tex]\sqrt{n} = \frac{1.88*0.37}{0.03}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.88*0.37}{0.03})^2[/tex]

[tex]n = 537.6[/tex]

Rounding up:

You need to have 538 people in your study.

PLEASE! Is this correct?

Answers

I believe it’s correct, but i’m not smart

A list of numbers is shown; 1 2 3 4 5 6 7 8 9 10
what is the median

A.2

B.4

C.9

D.10

Answers

Answer:

5.5

Step-by-step explanation:

We have a list of 10 numbers (n = 10) ordered from lower to higher.

1 2 3 4 5 6 7 8 9 10

The median is the value separating the higher half from the lower half of a data sample. Since n is even, there is no middle value and the median is defined as the mean between the two middle values, in this case, 5 and 6. Then,

median = 5 + 6 / 2 = 5.5

Hey, can u help me with what to write

Answers

Answer:

Step-

In mathematics, a linear equation is an equation that may be put in the form a₁x₁+⋯+aₙxₙ+b=0, where x₁,…,xₙ are the variables (or unknowns), and b,a₁,…,aₙ are the coefficients, which are often real numbers. The coefficients may be considered as parameters of the equation, and may be arbitrary expressions, provided they do not contain any of the variables. To yield a meaningful equation, the coefficients a₁,…,aₙ are required to not all be zeroby-step explanation:

Check the equation for varying terms and constant terms. Usually, equations won't come with varying terms and constant terms lined up on separate sides.

In order to do this, you may have to subtract or add the numbers you want to move from both sides. ...

Move the varying terms to one side of the equation

If you answer this question correctly i'll give you brainliest.

Answers

Answer:

5.7.11.13

Step-by-step explanation:

My guess

Answer:

first 11 second is 12 and 13 third is 14

Step-by-step explanation:

What if X if [ -1 -2 4 8] +X= [-5 -1 2 1]?

Answers

Answer:

[-4 1 -2 - 7]

Step-by-step explanation:

[-1 - 2 4 8] + X = [-5 - 1 2 1]

X= [-5 - 1 2 1]- [-1 - 2 4 8]

X=[-5-(-1) - 1-(-2) 2-4 1-8]

X=[-4 1 - 2 - 7]

Answer:

C

Step-by-step explanation:

Correct on Edge

Please, Please help! :(

Answers

Answer:

first blank is 3

second blank is 126

Step-by-step explanation:

the ratio is 2:3 so you must keep that the same in the table

The one for chocolates is 3 and the one for peppermints is 126

Please help me ! Is it 1 or 3

Answers

Answer:

its 3

Step-by-step explanation:

Answer:

not Shure but I think it is 1

A cylinder has a base area of 64π m2. Its height is equal to twice the radius. Identify the volume of the cylinder to the nearest tenth.

V = 6434.0 m3
V = 2804.2 m3
V = 1402.1 m3
V = 3217.0 m3

Answers

Answer:

3215 .36 m³ is the required volume.

Step-by-step explanation:

Base area of Cylinder = 64π m²

Height of cylinder is equal to twice the radius .

As we know that ,

★Base Area of Cylinder = πr²

where,

π is taken as 22/7 or 3.14

r is the radius of cylinder

Substitute the value we get

↝ 64 π = πr²

↝ 64 = r²

↝ √64 = r

↝ 8 = r

↝ r = 8 m

Now, it is given that height is equal to twice of radius

Therefore ,

height = 2r = 2×8 = 16 m

★Volume of Cylinder = πr²h

substitute the value we get

↝ volume of Cylinder = 3.14 × 8² × 16

↝volume of Cylinder = 3.14 × 64 × 16

↝volume of Cylinder = 3215 .36 m²

Hence, the required volume of cylinder is 3215 .36 m³.

Answer:

3217.0

Step-by-step explanation:

Decimal of 0.516÷4 With process​

Answers

Answer: 0.129
explanation:

A square playground has an area of 10,000 ft? What is the side length of the
playground? Show your work.
SOLUTION

Answers

area is a^2
the side length is 100 ft
100^2 = 10,000

7.
Which number line represents the solution to 2x + 3 < 5?

Answers

I think it's option 2.

Answer:

Option 2

Step-by-step explanation:

Option 2 is the answer

hope it helps uu

brainliest pls

3
4
5
I
9
Which is equivalent to 64 1/4?

Answers

3/12 is equivalent to 1/4 because 1 x 3 = 3 and 4 x 3 = 12. 4/16 is equivalent to 1/4 because 1 x 3 = 4 and 4 x 3 = 16. and so on ... Equivalent fractions may look different, but when you reduce then to the lowest terms you will get the same value.

Don't give me a link.

Answers

Answer:

x = 3

Step-by-step explanation:

6(x+1) = 24

x+1 = 4

x = 3

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

x = 3

Step-by-step explanation:

Math solution to equation

6(x + 1) = 24

Divide both sides by 6

x + 1 = 4

Subtract 1 from both sides

x = 3

You have 10 shirts. How many ways can
you select 5 shirts to pack for a trip?

Answers

Answer:

their is 50 ways.......

The possible combination, 252 ways you can pack shirts for a trip.

What is a permutation?

Mathematical calculations are used to determine the number of different configurations for a given set, and this procedure is referred to as permutation. A permutation is a phrase that, simply put, refers to the diversity of alternative configurations or ordering. When employing permutations, the sequence of the arrangement is crucial.

Formula for combination is

n!/(r! x (n-r)!),

where n is a number of shirts and r is the shirts selected.

In combination,

order doesn’t matter, as opposed to permutation.

According to the question,

n = 10 and r = 5

Then substituting the above values to the formula,

that means,

10! / ( 5! x 5!)

= 10x9x8x7x6 / ( 5x4x3x2x1)

= 252

Therefore, You can pack 5 shirts in 252 ways.

To learn more about the permutation;

https://brainly.com/question/1216161

#SPJ2

Find m∠1. 40 35 30 55

Answers

Answer:

m∠ = 90° - 40 = 50°

m∠ = 90° - 35 = 55°

m∠ = 90° - 30 = 60°

m∠ = 90° - 55 = 35°

Answer:

35 Degrees

Step-by-step explanation:

What is the perimeter of this shape? Use numbers only. *

Answers

Answer:

13 m.

Step-by-step explanation:

Formula for perimeter of a rectangle: side + side + side + side.

In other words, add every side of the rectangle.

[tex]2.5+4+2.5+4=13.[/tex]

Therefore, 13 meters is the perimeter of this shape.

Answer:

13m

Step-by-step explanation:

Perimeter of a Rectangle: 2(L + W) where L is the Length, and W is the Width of the rectangle.

=> 2(4 + 2.5)

=> 2(6.5)

=> 13

Perimeter of the Figure = 13 m

Hope this helps!

What’s the correct answer?? I will mark as brainlest

Answers

Answer:

11

Step-by-step explanation:

What is the equation of the quadratic function represented by this table ??HELP PLEASE GRADUATION IS JUNE FIRST

Answers

9514 1404 393

Answer:

  -3, 7, 8

Step-by-step explanation:

You can fill in the boxes from the table values as shown in the attachment.

The leading coefficient is negative because the parabola opens downward. The value of it is the change in y-value as x changes by 1 unit either side of the vertex.

The vertex is identified by the fact that the y-values are symmetrical either side of the vertex.

Answer:

-3, 7, 8

Step-by-step explanation:

Help me please? Making brainliest!

Answers

Answer:

0.33333

Step-by-step explanation:

[tex] \huge \red {\frac{1}{3}} \orange {=} \purple {0.33333} [/tex]

Hope it helps you in your learning process

Answer:

It’s the last one, 0.33333

HELP HELP HELP HELP HELPPPP.

Answers

Answer:

letter d

................

Answer:

I think the answer is D - 0.6

James wants to 3D-print 8 model car pieces per hour for 10 hours. He can produce 5 model car
pieces using 50 grams of plastic.
How many grams of plastic will he need?

Answers

Answer:

80 grams of plastic

Step-by-step explanation:

5 model cars -- 50 grams

1 model car -- (50/5) = 10 grams

8 model cars -- (10 * 8) = 80 grams

Thenks and mark me brainliest :)))

The speed you are going determines the distance you travel before coming to a complete stop after pressing the brake.


Use the computer outputs, scatterplots, and residual plots to determine which statements are true. Check all that apply.

GIVING OUT BRAINLIEST IF CORRECT!


The linear model is most appropriate.

The power model is most appropriate.

Models are always improved by transformations.

The r2 on the linear model is stronger.

The residual plot is more patterned on the linear model.

Answers

Answer: A and D

Step-by-step explanation:

find the area of the triangle. Round
your answer to the nearest tenth.

Answers

Answer:

180 i think

Step-by-step explanation:

Two less than the product of five and a number is negative 12.

Answers

Answer:

1. 2x-4=10

2. 3x+3=2x-1

3. 7x+x=24

4. 5+x=-18

5. -14=10-6x

6. 2x-2=x+12

7. 3x-31=2

8. 5x-14=16

9. 2x+8=4(5-x

10. 2x-3=3(1+x)

Explanation:

I JUST TAKEN THE QUIZ!!!!!

$1
$1 ($1
$1
$1
$1
$1
$1
$1 ($1
$1
$1
Marlon and Ricky split this
money in the ratio 1:3​

Answers

1?????????????????????

Answer:

$1 dollar split into the ratio 1:3 is 0.25:0.75. Is that what you're looking for?

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