Find the slope of the line which is perpendicular to a line having a slope of 5/7

( 2x − 27 ) ( −x + 15 )

= ( 2x + −27 ) ( −x + 15 )

= ( 2x ) ( −x ) + ( 2x ) ( 15 ) + ( −27 ) ( −x ) + ( −27 ) ( 15 )

= −2x^2 + 30x + 27x − 405

= −2x^2 + 57x − 405

Answer:

The ladder would reach 15.2 feet up

Answer:

Triangle: 63 square units    Rhombus: 56 square units

Step-by-step explanation:

Rhombus formula: Base x Height

4 x 14 = 56

Triangle formula: 1/2 x Base x Height

6 x 21= 126  

126 x 1/2 = 63

btw, this isn't algebra

Answer:

8.3

Step-by-step explanation:

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A study with a sample that is very different from the population is biased

The population density, or the number of people divided by the area's size, is determined by the number of people who reside there. Numerous creatures' distribution, growth, and migration can all be explained by population density.

Population density = number of people / the area they occupy

Given data ,

A study with a sample that is very different from the population is J. biased.

In statistical terms, bias refers to any systematic error or deviation from the true value that can occur in a study. When a study is biased, the results may not be representative of the population and may not be generalized other settings.

Results from a research may be skewed if the sample chosen is considerably different from the population. Both experimental and observational research may experience this. As a result, alternatives F and G do not offer sufficient details to assess the study's objectivity.

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Answer:

The standard deviation for week two was about 3 ounces more than the standard deviation for week one

Step-by-step explanation:

Given

[tex]Week\ 1: 128, 105, 80, 82, 96, 98, 87, 100, 112, 126[/tex]

[tex]Week\ 2: 75, 85, 90, 97, 89, 105, 110, 127, 129, 130[/tex]

See attachment for options

Required

The true statement

Checking the standard deviation

For week 1

Calculate the mean:

[tex]\bar x = \frac{\sum x}{n}[/tex]

[tex]\bar x = \frac{128+ 105+ 80+ 82+ 96+ 98+ 87+ 100+ 112+ 126}{10}[/tex]

[tex]\bar x = \frac{1014}{10}[/tex]

[tex]\bar x_1 = 101.4[/tex]

Then standard deviation

[tex]\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}[/tex]

[tex]\sigma_1 = \sqrt{\frac{(128 - 101.4)^2 +............+ (126- 101.4)^2}{10}}[/tex]

[tex]\sigma_1 = \sqrt{\frac{2522.4}{10}}[/tex]

[tex]\sigma_1 = \sqrt{252.24[/tex]

[tex]\sigma_1 = 15.88[/tex]

For week 2, we have:

[tex]\bar x = \frac{75+ 85+ 90+ 97+ 89+ 105+ 110+ 127+ 129+ 130}{10}[/tex]

[tex]\bar x = \frac{1037}{10}[/tex]

[tex]\bar x_2 = 103.7[/tex]

Then standard deviation

[tex]\sigma_2 = \sqrt{\frac{(75 - 103.7)^2 +................+ (130- 103.7)^2}{10}}[/tex]

[tex]\sigma_2 = \sqrt{\frac{3538.1}{10}}[/tex]

[tex]\sigma_2 = \sqrt{353.81[/tex]

[tex]\sigma_2 = 18.81[/tex]

Compare the standard deviations

[tex]\sigma_1 = 15.88[/tex]

[tex]\sigma_2 = 18.81[/tex]

Calculate the difference:

[tex]d = \sigma_2 - \sigma_1[/tex]

[tex]d = 18.81 - 15.88[/tex]

[tex]d = 2.93[/tex]

[tex]d \approx 3[/tex]

This implies that option (b) is true

Answer:

irdk but papi u a rari

Step-by-step explanation:

Answer:

254

Step-by-step explanation:

This is basically a triangle, with a height of 2, and hypotenuse of 16.

Using the Pythagorean theorem (a^2+b^2=h^2) we can find the other side.

2^2+b^2=16^2

4+b^2=256

b^2=254

b=√254

Answer:

5/53

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

3/2=1.5 hour=5400 second

Hope it helps you

Answer:

5,400 seconds.

Answer:

46,746 mm²

Step-by-step explanation:

½×(210+84)×318

= 46,746 mm²

Answer:

jhkughyuguygkuyftyfguyihyghuy.,^´ñplpokjo0ijoi

Step-by-step explanation:

Answer: Maple and Willow

Step-by-step explanation:

Hello sorry for the other guy's un usefulness but I'm taking the same test and this was the correct answer.

Answer:

were is the line

Step-by-step explanation:

Answer:

1- y=2x-5

2- y=-1/6x-5

Hope this helps you!!

Answer:

0.4%

Step-by-step explanation:

If we are looking to have a number less than 3 rolled 4 out of 7 times.

Our winning numbers are 1 and 2. Our losing numbers are 3, 4, 5, and 6.

This means that our winning percentage is 33.3% and our losing percentage is 66.6%.

We need to multiply these numbers together taking our number of rolls into account.

.333 * .333 * .333 * .333 * .666 * .666  * .666 = 0.0036

There is 5 weeks do they need to fundraise.

Inequality is a Mathematical statement that shows the relation between two expressions using the inequality symbol.

Your school is having a fundraiser in order to pay for t-shirts.

They need to raise $882.69.

They have already collected $92.85 in donations.

Their goal is to have $190 donated each week.

Let, x be the number of weeks do they need to fundraise.

The number of weeks do they need to fundraise is given by;

[tex]\rm 92.85 +190x > 882.69\\\\190x > 882.69-92.85\\\\ 190x > 789.84\\\\x > \dfrac{789.84}{190}\\\\x > 4.15[/tex]

Hence, there is 5 weeks do they need to fundraise.

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Answer:

(1, -2)

Step-by-step explanation:

hope this helps :)

Answer:

1 out of 60.

this is found by taking the one side of six and multiplying the total sides by 10.

Step-by-step explanation:

Answer:

19cm

Step-by-step explanation:

An equilateral triangle is a triangle where the length of the 3 sides are the same.

the perimeter is the sum of the 3 sides

for example, if the length of the side of the an equilateral triangle is 5, the perimeter is 5 x 3 = 15

let x = unknown length of side

length after increase = x + 5

(x + 5) x 3 = 72

divide both sides of the equation by 3

x + 5 = 24

subtract 5 from both sides of the equation

x = 24 - 5 = 19cm

Answer:

It has 1.

Step-by-step explanation:

x=2/3 or x=0.6.

Answer:

A.) -3

Step-by-step explanation:

-3 is less than -2 therefore, it fits the answer.

A on a chart you would see that -2 is closer to the right and has greater value that -3

Answer:

88

Step-by-step explanation:

Each triangle has a sum of 180 degrees. So we find the missing angle with this rule.

180-38-50.

The angle is 92 degrees.

Now to find the angle of A, each angle adds up to 180 on a line. so 180-92. So you get 88

Answer:

Step-by-step explanation:

38+50=angle A(the sum of two interior opposite angle is equal to the external angle formed)

88=angle A

Answer:

For 1 figure, 2 pints are used

Step-by-step explanation:

9 figures = 18 pints

1 figure = 18/9

1 figure = 2 pints

Hope this helps!

Answer:

Answer:

-3x+5y=20

Step-by-step explanation:

Standard form is given by ax+by=c

where a , b and c are integers

here we have an equation

so we first multiply the complete equation by 5 to get rid of the fraction

Now subtract 3x from both side to get the required standard form

-3x+5y=20

Step-by-step explanation:

just move y to the side with x and move 4 to the other end

Answer:

a

Step-by-step explanation:

Answer:

Option A

Step-by-step explanation:

I just got done with this same quiz and i got a 100 .

Answer:

                              5

Jeffrey will use 9  __ cups of oatmeal

                              8

Step-by-step explanation:

2.75 cups of oatmeal per 1 dozen

2.75 x 2 = 5.5

2.75 + 2.75(1/2) = 4.125

add

5.5 + 4.125 =

9.625 cups of oatmeal

              or

9 5/8 cup

Answer:

2(7a + 143)

what are the answers or are you asking us to find them

Answer:

2(7a + 4)

Step-by-step explanation:

Answer:

angle bac is the answer

Step-by-step explanation:

both rays emanate from the shared point 'a', which will be the vertex of angle bac

Answer:

D

Step-by-step explanation:

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