Elena’s bedroom door is 1.2 m wide. How wide should the door be on the scale drawing? Explain how you know.

Answer:

157.6

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean, and

σ is the population standard deviation.

From the question:

Mean = 140

Standard deviation = 40

Recidivism score = x score = ??

z = z score of 67th percentile = 0.44

Hence,

0.44 = x - 140/40

Cross Multiply

0.44 × 40 = x - 140

17.6 = x - 140

x = 140 + 17.6

x = 157.6

Therefore, his corresponding recidivism score is 157.6

Answer:B

Step-by-step explanation:because an arithmetic sequence would be either adding or subtracting and B is dividing or if it’s easier from right to left it’s multiplying

Answer:

B.

Step-by-step explanation:

Answer:

y=2.75x+5.00

Step-by-step explanation:

x=miles y=cost

Answer:

21 calouris

Step-by-step explanation:

5250/250

Answer:

500

Step-by-step explanation:

250 X 7 = 1750

5250 - 1750 = 3500

3500 divided by 7 =500

Answer:

i dont speak spanish

Step-by-step explanation:

Step-by-step explanation:

Given expressions:

1. x² + x

2. 5x² - 25x

3. x² - 16

4. x² + 4x + 4

5. x² - 5x + 6

   Problem: Factor each of the quadratic expression

Solution:

A quadratic expression is an expression whose highest power is two.

1. x² + x

     For this expression:

       x² + x

    Factorizing x since  it is a common term;

       x(x + 1)          

2. 5x² - 25x

    For this expression;

   Factorize 5x since it common to both of them;

      5x(x - 5)

3. x² - 16

    For this expression;

  Apply the differences of two squares;

     x² - 16

     x² - 4²;

    Note;  x² - y²  = (x-y)(x+y)

So, x² - 4² = (x-4)(x + 4)

4. x² + 4x + 4

   To solve this,

     Find two numbers whose product will be 4 and sum also 4;

  x² + 4x + 4 = x² + 2x + 2x + 4

                    = x(x + 2) + 2(x + 2)

                     = (x + 2)(x + 2)

5. x² - 5x + 6

    To factorize this expression, simply find two numbers whose sum is -5 and product is 6;

            x² - 5x + 6 = x² - 3x - 2x + 6

                              = x (x - 3) -2(x - 3)  

                              = (x -2)(x-3)

Answer: c.)2 g/ml is the correct answer.

Answer:

6.72937

Step-by-step explanation:

672.937%​

(calculate)

[tex]\frac{672.937}{100}[/tex]

(convert the expression)

6.72937

(there's your answer)

Answer:

18

Step-by-step explanation:

to find the percentage of something you change the percent to a decimal and multiply it by the other number, so in this case you have 0.6*30 and you get 18.

hope this helped :))

Answer:1.5

Step-by-step explanation:

Answer: 4/5

Step-by-step explanation:

Slope=rise/run

In this case we start at (-2,0)

We rise up 4 and run to the right 5 until we are at (3,4)

Answer:

(72-30)/6 = 7 is the equation

72-30=42

42/6=7

Step-by-step explanation:

Good luck! <3

Answer:

(72-30) divided by 6

Step-by-step explanation:

You subtract 30 from 72 because Ms.Correa is going to keep them. Then you divide that by 6 of her children to get your answer. 72-30=42, 42/6 = 7

answer is 4

brainliest plz :)

Answer:no

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

add all of those numbers and divide it by the value of how many numbers there are in total.

Answer:

1) P(1,0)Q(-2,3)R(-3,3)S(3,2)

2) (3,4)

3) (0,-4)

4) (1,2)

Step-by-step explanation:

ratinal

Step-by-step explanation:

Answer:

Rational

Step-by-step explanation:

A rational number is any number that can be turned into a fraction. Any decimal number can be turned into a fraction, therefore, this is a rational number.

Answer:im going to play roblox

Step-by-step explanation:

Answer:

37 used beeds

Step-by-step explanation:

May i get brainiest

Step-by-step explanation:

okay so basically when you have a triangle, the side that is directly across from the angle you are looking for is the "opposite". here is an attachment.

Answer:

2:3 hope it helps.

Step-by-step explanation:

9:4

This is the answer.....

Answer:

i hope im not to late but i think its c

❤

A line chart is a graph that shows the rate at which two variables evolve.

Option c) is correct.

A graph is a representation of the relationship among different sets of numbers or measures.

A graph is just a data structure made up of a finite number of nodes (or vertices) and the edges that link them.

A line chart is a graph that shows the rate at which two variables evolve.

So, option c) is correct.

Find out more information about graph here:

https://brainly.com/question/9794343?referrer=searchResults

Answer:

x= 15/19 = 0.789

Step-by-step explanation:

Answer: 0.789 is the correct answer plz brainliest big brother

Answer:

x=-1/4

Step-by-step explanation:

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

x=29

Answer:

2

Step-by-step explanation:

Divide 4 into an even number, so its 2.

Answer:

1.25 or 1 and 1/4th

Step-by-step explanation:

you have to divide the cups of flower by the size of the pan

Answer:

There are 4 small apples in 1 lb of apples.

Step-by-step explanation:

From the information given, you know that a bushel of small apples contains twice as many apples as a bushel of large apples. So, in order to know the amount of apples in a bushel of small apples you have to multiply the number of apples in a bushel of large apples by two:

84*2=168

Now, you can use a rule of three to find the number of small apples in 1 lb of apples given that you know that each bushel of apples that has 168 small apples weighs 42 lbs:

168 apples → 42 lbs

       x         ←    1 lb

x=(168*1)/42= 4

According to this, the answer is that there are 4 small apples in 1 lb of apples.

Answer:

4 small apples in 1lb of apples I think

Step-by-step explanation:

Answer:

y=-1/2x−5/2

Step-by-step explanation:

The equation of a line perpendicular to given line is y=-x/2.

The given equation of a line y=2x-7 and passes through the point (0, 0).

The slope formula is used to calculate the inclination or steepness of a line. It finds application in determining the slope of any line by finding the ratio of the change in the y-axis to the change in the x-axis.

The standard form of equation of a line is y=mx+c, where m=slope and c=y-intercept.

So, slope of a given equation is y=2x-7

m=2

Now, slope of a line perpendicular to given line is -1/m = -1/2

Put m= -1/2 and (0, 0) in y=mx+c and simplify.

That is, 0=0+c

c=0

Then, the equation of a line is y=-x/2

Therefore, the equation of a line perpendicular to given line is y=-x/2.

To learn more about the equation of a line visit:

https://brainly.com/question/21511618.

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"Your question is incomplete, probably the complete question/missing part is:"

Which line is perpendicular to y=2x-7 and passes through (0, 0).

Answer:

[tex]2 \: sqrt \: 10.[/tex]

Step-by-step explanation:

[tex]sqrt \: 40 = \sqrt{40} = \sqrt{4 \times 10} = \\ \sqrt{4} \times \sqrt{10} = 2 \times \sqrt{10} = \\ 2 \sqrt{10} = \\2 \: sqrt \: 10[/tex]

♨Rage♨

[tex]2\sqrt{10}[/tex] expression is equivalent to the given expression [tex]\sqrt{40}[/tex].

An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it.

Given expression

[tex]\sqrt{40}[/tex]

We can write it into [tex]\sqrt{4 .(10)}[/tex]

= [tex]\sqrt{4}.\sqrt{10}[/tex]

= [tex]2\sqrt{10}[/tex]

Hence, [tex]2\sqrt{10}[/tex] expression is equivalent to the given expression [tex]\sqrt{40}[/tex].

Find out more information about expression here

brainly.com//question/14083225

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Answer:

9.

x-10 = 104

x = 104 + 10 = 114

10.

2x-15 = x + 55

2x - x = 55 +15

x = 70