a. 160 is what percentage of 40?

Answer:

490

Step-by-step explanation:

19.6

25

980

3920

4900

then add the decimal

490.0

Answer:

i think it's square foot of4

Answer:

I think its A

Step-by-step explanation:

I'm not 100% sure but I think its A

Answer:

it is 100 mm side length

Answer: 21

Step-by-step explanation: We are given that angle ABC is dilated with center P.

Scale factor=3

Angle A'B'C' is formed after dilation of angle ABC.

Dilation: when a figure is dilated by scale factor a then, the figure shape does not change.

After dilation, the size of figure changes.

The initial figure and the figure obtained after dilation are similar in shape.

When two figures are similar then , the angles of one figure are  congruent to its corresponding angles in other figure and ratio of their corresponding sides are equal.

The measure of angle ABC=21'

After dilation by scale factor 3 then, the measure of angle A'B'C' remains=21'

Because the shape does not change in dilation transformation.

Step-by-step explanation:

(f o g)(x)

= f(x - 3)

= 2(x - 3) + 1 = 2x - 5.

Hence (f o g)(-2) = 2(-2) - 5 = -4 - 5 = -9.

Answer:

Step-by-step explanation:

d-4=19d=15

We move all terms to the left:

d-4-(19d)=0

We add all the numbers together, and all the variables

-18d-4=0

We move all terms containing d to the left, all other terms to the right

-18d=4

d=4/-18

d=-2/9

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

Answer:

6 hours and 45 minutes

Step-by-step explanation:

2.75 hours = 2 hours and 45 minutes

3 hours 20 minutes

0 hours 40 minutes

2 hours 45 minutes

5 hours 105 minutes

6 hours 45 minutes

Answer:

The correct answer is B.

Answer:

The 95% confidence interval for the population mean is between $140.89 and $159.11

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{1-0.95}{2} = 0.025[/tex]

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

So it is z with a pvalue of [tex]1-0.025 = 0.975[/tex], so [tex]z = 1.96[/tex]

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. So

[tex]M = 1.96\frac{36}{\sqrt{60}} = 9.11[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is $150 - $9.11 = $140.89

The upper end of the interval is the sample mean added to M. So it is $150 + $9.11 = $159.11

The 95% confidence interval for the population mean is between $140.89 and $159.11

Answer:

The resulting percentage is seventy seven and seven ninths, or approximately 77.78%

Step-by-step explanation:

You can solve this by dividing 56 by 72 and multiplying by 100:

56 / 72 × 100

= 7 / 9 × 100

≅ 0.7778 × 100

≅77.78%

Answer:

first one is 127,000 second one is 866,000

Step-by-step explanation:

Answer:

272162that's how you round it because 6 is greater than 5 so u can round it up from 0 to 1

Answer:

28 short race volunteers

76 long race volunteers

Step-by-step explanation:

Let :

Short races = a

Long races = b

LAST YEAR:

7a + 8b = 804 - - - - (1)

THIS YEAR:

11a + 5b = 688 - - - (2)

Multiply (1) by 5 and (2) by 8

35a + 40b = 4020

88a + 40b = 5504

Subtract

-53a = - 1484

a = 1484 / 53

a = 28

Put a = 28 in equation (1)

7(28) + 8b = 804

196 + 8b = 804

8b = 804 - 196

8b = 608

b = 76

28 short race volunteers

76 long race volunteers

Answer:

i think more

Step-by-step explanation:

Answer:

its to blurry

Step-by-step explanation:

Answer:

x + y + 1

or

xy + y² + 2

or

x² + y² - 1

or

a²b + b³ + 3

Step-by-step explanation:

You can use x and y as the two variables. Then add them to make is x + y (this is already two variables and two terms). Add a constant, say 1. So x + y + 1, now we have three terms with two different variables and one constant.

Or you can also make it xy + y² + 2 or x² + y² - 1 by adding exponents to each of the variable.

You can choose one from the above or you can make your own (it depends on you).

Answer:

12/100

Step-by-step explanation:

Percent is basically per 100 so 12/100

Simplest is 3/25

Answer:

L = 131 feet

Step-by-step explanation:

Right Triangles

The cable, the ground, and the radio tower form a right triangle with an angle of 90° located where the ground and the tower meet.

The cable is the hypotenuse of the triangle and the angle of 50° is opposite to the height of the radio tower.

To find the hypotenuse L we use the sine ratio:

[tex]\displaystyle \sin\theta=\frac{\text{opposite leg}}{\text{hypotenuse}}[/tex]

[tex]\displaystyle \sin 50^\circ=\frac{100}{L}[/tex]

Solving for L:

[tex]\displaystyle L=\frac{100}{\sin 50^\circ}[/tex]

Calculating;

L = 131 feet

Answer:

1.=8.1

2.=10.4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hey, I'm not sure if I am right, but I hope it can create a spark or something.

8. Find x

10x - 1 = 14x - 37      Combine like terms

     +37        +37

10x + 36 = 14x          Combine like terms

-10x          -10x

    36 = 4x                Divide to isolate x

    36 = 4x

     4      4

    9 = x        

You can also do this method with the others.

PS: I am still not sure if this is the right method, lol. I just really want to help.

Answer:

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is given by:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

For this problem, we have that:

[tex]n = 400, p = \frac{395}{400} = 0.9875[/tex]

96% confidence level

So [tex]\alpha = 0.04[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.04}{2} = 0.98[/tex], so [tex]Z = 2.056[/tex].

Calculate the margin of error for a 96% confidence interval.

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]M = 2.056\sqrt{\frac{0.9875(0.0125)}{400}}[/tex]

[tex]M = 0.0114[/tex]

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Answer:

b

Step-by-step explanation:

Answer:

The difference is 1 cent

Step-by-step explanation:

1.12/8 is 0.14

1.56/12 is 0.13

subtract and you get 1

Answer:

an individual's financial irresponsibility may affect them

Answer:

An individual’s financial irresponsibility may affect the community

Step-by-step explanation:

Answer:

A.She used the incorrect inverse operation.

Step-by-step explanation:

Hopefully it is help

Answer:

Step-by-step explanation:

...

Answer:

b) time to finish the race

c) score on science test

Step-by-step explanation:

Minimum number of tents are 11.

Here,

32 athletes are going camping for the weekend.

3 athletes can sleep in one tent.

We have to find the minimum number of tents.

What is Number system?

A system of writing to express number is called Number system.

Now,

Number of athletes = 32

Number of athletes in one tent = 3

Hence, Minimum number of tents = 32 ÷ 3

We get 11 tents for 32 athletes.

Therefore, Minimum number of tents are 11.

Learn more about the number system visit:

https://brainly.com/question/19460684

#SPJ2

Answer:

10x+35 please give brainliest

Step-by-step explanation:

21x+35-11x

10x+35