19. Roof trusses often use right triangles to make a flimsy 2 x 4 more rigid to hold up the weight of the roof. If a
house is 40 feet wide and the roof is an isosceles triangle with base angles of 30, how far is it from the
bottom edge of the roof to the peak?
(Answer is radical form please!!!)

Answers

Answer 1

Answer:

8

Step-by-step explanation:


Related Questions

Algebra 2
Please help me solve this.

Answers

Answer: x=3
Explanation: just did it :) plz name me brainliest :)))


[tex] \frac{3}{2} + \frac{2m}{9} = \frac{37}{18} [/tex]
How do I solve this and make it the most simplified it can be?​

Answers

Answer:

[tex]m = \frac{5}{2} [/tex]

Step-by-step explanation:

[tex]\frac{3}{2} + \frac{2m}{9} = \frac{37}{18}[/tex]

Multiply through by 18 to eliminate the fraction

That's

[tex]18 \times \frac{3}{2} + 18 \times \frac{2m}{9} = 18 \times \frac{37}{18} \\ 27 + 4m = 37[/tex]

Subtract 27 from both sides

That's

[tex]27 - 27 + 4m = 37 - 27 \\ 4m = 10[/tex]

Divide both sides by 4

That's

[tex] \frac{4m}{4} = \frac{10}{4} [/tex]

We have the final answer as

[tex]m = \frac{5}{2} [/tex]

Hope this helps you

➢ Answєr :

[tex]\Huge{\boxed{\sf{\red{m = \frac{5}{2}}}}}[/tex]

➢ Explαnαtion :

[tex]\displaystyle{\sf{ \frac{3}{2} + \frac{2m}{9} = \frac{37}{18}}} [/tex]

| ∵ Transposing 3/2 to R.H.S

[tex]\implies[/tex] [tex]\displaystyle{\sf{ \frac{2m}{9} = \frac{37}{18} - \frac{3}{2}}} [/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ \frac{2m}{9} = \frac{37-27}{18}}} [/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ \frac{2m}{9} = \frac{10}{18} = \frac{5}{9}}} [/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ 2m = \frac{5}{9} \times 9}} [/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ 2m = 5}} [/tex]

[tex]\longrightarrow[/tex] [tex]\large{\boxed{\sf{\red{ m = \frac{5}{2}}}}}[/tex]

6/9, 5/7, 5/6,4/5 What is the lcm of this? Please, please, please help!

Answers

you calculate for the LCM of the denominator

9

7

6

5

which Thier Lcm is 630

Round 8,542,310 to the nearest million

Answers

Answer:

9,000,000

Step-by-step explanation:

Since the 5 next to the 8 is a number with a value of 5 or higher, you can round the 8 up to a 9 thus rounding to the nearest million.

please help, tysm if you do :D

Answers

Answer:

[tex]\huge\boxed{x=12}[/tex]

Step-by-step explanation:

If B is the midpoint of line AC, we know that lines AB and BC will be equivalent to each other.

Since we know the measures of AB and BC, we can just set these expressions equal to each other and find the value of [tex]x[/tex].

[tex]6x - 27 = 3(x+3)[/tex]

Let's simplify this equation until we have [tex]x[/tex] on one side of it.

[tex]6x-27=3x+9\\\\6x=3x+36\\\\3x=36\\\\x=12[/tex]

Hope this helped!

How do you figure this equation out?
4r + 7 = 35

Answers

Answer:

r = 7

Step-by-step explanation:

Step 1: Write out equation

4r + 7 = 35

Step 2: Subtract 7 on both sides

4r + 7 - 7 = 35 - 7

4r = 28

Step 3: Divide both sides by 4

4r/4 = 28/4

r = 7

Solve 4r+7=35

4r=35-7

4r=28

r=7

:)

Consider the equation 5y=2x+4. Select all the equations that are perpendicular to the given equation.

Answer options in the picture above ^
|

Answers

Answer: 5x + 2y = 10, 15x = -6y - 9

Step-by-step explanation: good luck on your algebra Nation test

pls answer this qeustion as soon as possible

Answers

The dimensions of this rectangle are 4 units by 3 units

4 units * 3 units = 12 sq units

Find the mode:
3.8, 4.2, 4.0, 4.2, 4.2

Answers

Answer:

mode = maximum repeated item

here mode = 4.2

It’s 4.2, since the mode is the number in a series that repeats the most often.

Identify ALL of the constants & coefficients of the following equation:
1/2b-16= -4

Answers

Answer:

1/2b=-4+16

1/2b= 12

b=12×2

b=24

Answer:

constants = -16 and -4

coefficients are 1/2

Step-by-step explanation:

a constant is a number not attached to a variable. a coefficient is a number attached to a variable

2. It takes 39,090 gallons of water to manufacture a new car. Sammy thinks that rounds up to about 40,000
gallons. Susie thinks it is about 39,000 gallons. Who rounded to the nearest thousand, Sammy or Susie?
Use pictures, numbers, or words to explain.

Answers

Answer:

Susie rounded to the nearest thousandth.

Step-by-step explanation:

since the 100th place is 0 it would round down to 39,000 when you are rounding to the nearest thousand.

14. 9(y - 4) - 7y = 5(3y - 2
step by step please​

Answers

Answer:

y=-2

Step-by-step explanation:

9(y−4)−7y=5(3y−2)

(9)(y)+(9)(−4)+−7y=(5)(3y)+(5)(−2)

9y+−36+−7y=15y+−10

(9y+−7y)+(−36)=15y−10

2y+−36=15y−10

2y−36=15y−10

Step 2:

2y−36−15y=15y−10−15y

−13y−36=−10

Step 3:

−13y−36+36=−10+36

−13y=26

divide

/13     /13

y=-2

Answer:

y=-2

Step-by-step explanation:

Simplifying

9(y + -4) + -7y = 5(3y + -2)

Reorder the terms:

9(-4 + y) + -7y = 5(3y + -2)

(-4 * 9 + y * 9) + -7y = 5(3y + -2)

(-36 + 9y) + -7y = 5(3y + -2)

Combine like terms: 9y + -7y = 2y

-36 + 2y = 5(3y + -2)

Reorder the terms:

-36 + 2y = 5(-2 + 3y)

-36 + 2y = (-2 * 5 + 3y * 5)

-36 + 2y = (-10 + 15y)

Solving

-36 + 2y = -10 + 15y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-15y' to each side of the equation.

-36 + 2y + -15y = -10 + 15y + -15y

Combine like terms: 2y + -15y = -13y

-36 + -13y = -10 + 15y + -15y

Combine like terms: 15y + -15y = 0

-36 + -13y = -10 + 0

-36 + -13y = -10

Add '36' to each side of the equation.

-36 + 36 + -13y = -10 + 36

Combine like terms: -36 + 36 = 0

0 + -13y = -10 + 36

-13y = -10 + 36

Combine like terms: -10 + 36 = 26

-13y = 26

Divide each side by '-13'.

y = -2

Simplifying

y = -2

3. What is the slope of the line x = -5? (1 point)
O Undefined
O 0
O -5
O 5

Answers

Answer:

slope is undefined

Step-by-step explanation:

x = - 5 is the equation of a vertical line, parallel to the y- axis.

The slope of a vertical line is undefined.

What is the space between two rays with the same endpoint?

Answers

Answer:

Two rays that share the same endpoint form an angle. The point where the rays intersect is called the vertex of the angle. The two rays are called the sides of the angle. An angle is also the space between the sides.

Step-by-step explanation:

Screen Shot- Please help- I give Brainliest for correct answer​

Answers

Answer:

3

1

4

-2

Step-by-step explanation:

imma math mannnnn

Let f(x)=5x+4 and g(x)=x^2-7x+12
Perform the function operation f(x)•g(x)

Answers

Answer:

Step-by-step explanation:

(5x + 4)(x^2 - 7x + 12)

5x^3 - 35x^2 + 60x + 4x^2 - 28x + 48

5x^3 - 31x^2 + 32x + 48

Find the coordinates of the midpoint of the segment.
MN with endpoints M 6,12) and N(-6, -6)
The coordinates are

Answers

Answer:

[tex]MP= (-6,3)[/tex]

Step-by-step explanation:

[tex]MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\MP= (\frac{6+-6}{2} )(\frac{12+-6}{2} )\\MP= (\frac{-12}{2} )(\frac{6}{2} )\\MP= (-6,3)[/tex]

Is the sum of √16 and 1.5 rational or irrational?" Justify and explain your answer.

Answers

Answer:

Rational

Step-by-step explanation:

The square root of 16 is 4, and 4 + 1.5 is = to 5.5. An irrational number is defined as infinite and never-ending. Since 5.5 is not infinite, we can conclude that it isn't irrational.

A movie, including the previews, is 2 hours and 40
minutes long. If the previews last 20 minutes, what
fraction of the total time is the actual movie?

Answers

Answer:

7/8

Step-by-step explanation:

Given the length of the actual movie time and the length of the total movie time, the actual movie is 7/8 of the total movie time.

What fraction of the total time is the actual movie?

Given the data in the question;

Total time of the movie is 2 hours and 40 minutes = 160 minutes

Preview time is 20 minutes

Now time of the actual movie will be;

Total time of the movie - Preview time

2 hours and 40 minutes - 20 minutes

160 minutes - 20 minutes

Time of the actual movie is 140 minutes

Now we get the fraction

Time of the actual movie / Total time of the movie

= 140 minutes / 160 minutes

= 14/16

= 7/8

Therefore, given the length of the actual movie time and the length of the total movie time, the actual movie is 7/8 of the total movie time.

Learn more word problems here: brainly.com/question/2610134
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Solve
(1) +3 + 17 = (6) -8 + (-8) =

(2) -81 + (-1) = (7) 23 + (-46) =

(3) 4 + -19 + 25 = (8) -6 + -16 + -3 =

(4) 152 + (-102) = (9) +77 + (-49) =

(5) -400 + (+400) (10) -20 + 90 + 30

Each one please!?

Answers

Answer:

1) 21

2) -10

3)10

4)50

5) 3,700

From iOE your friend! :D :P *Your awesome in every way!*

3m - 12 =18
Step by step

Answers

Answer:

3m=18+12

3m=30

divide both sides by 3

m=10

Answer:

m = 10

Step-by-step explanation:

3m - 12 =18

Add 12 to each side

3m - 12+12 =18+12

3m = 30

Divide by 3

3m/3 = 30/3

m = 10

does the point 2,4 lie on the line y=5x-6?

Answers

Answer:

substitute value of x and y as 2 and 4

y=5x-6

4= 5*2-6

4=4 so yes

Step-by-step explanation:

The point (2, 4) lie on the line y = 5x-6

What is an equation?

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

For example, 3x + 5 = 15.

Given that, we need to check whether the point 2,4 lie on the line y=5x-6 or not,

So, the verification of the same, we will simply put the value of x (2) in the equation and see whether we are getting 4 or not, if not then points do not lie on the line, if yes, the point lies on the line.

So, the equation is

y = 5x-6

Put x = 2,

y = 5(2) - 6

y = 10-6

y = 4

Since, we get the value of y = 4, therefore, the point lies on the line.

Hence, the point (2, 4) lie on the line y = 5x-6

Learn more about equation, click;

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The area of a rectangular rug is 25.5 square meters. The width of the rug is 3.75 meters. Found the length of the rug by dividing its area by its width. What is the length in of the​ rug?

Answers

6.8 because 25.5/3.75 = 6.8

What is the future value of an annual deposit of $800 earning 6 percent for 15 years

Answers

Future value of lump sum - $1,917.25
Compound interest interest earned- $1,117.25

what is 4.5x10^-6 in standard notation?

Answers

It would be 0.0000045 because it is a - you go left but if it was positive you would go right and you are moving the decimal

The number 4.5x10⁻⁶ can be expressed in standard notation as decimal 0.0000045.

In scientific notation, numbers are expressed as a decimal number between 1 and 10 multiplied by a power of 10. In this case, 4.5 is the decimal number and 10⁻⁶ represents the power of 10.

To convert this to standard notation, we move the decimal point six places to the left to match the negative exponent of 10⁻⁶. This gives us:

0.0000045

In standard notation, this number is written as 0.0000045, where the zeros after the decimal point indicate the value of the number in the place of each digit. The last non-zero digit in this case is 5, which is in the sixth decimal place.

To learn more about the decimal;

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The complete question:

What is 4.5x10⁻⁶ in standard notation?

What is the surface area of a cube of ice that is 64,000 cubic inches as the volume?

Answers

I’m so sorry but I don’t have a clue! But you’ll get it eventually

what is the slope of points (4,9) (-8,-6)? ​

Answers

Answer:

5/4

Step-by-step explanation:

(y₂ - y₁) / (x₂ - x₁)

(4,9) (-8, -6)

plug in

(-6 - 9) / (-8 - 4)

solve within parentheses

-15/-12

simplify

5/4

what is the slope of points (4,9) (-8,-6)

Answer:

5/4

Express this in standard form 5.4×10^1​

Answers

Well it would just be 54 since you just need to move the decimal over by 1.

So 5.4x10= 54

Residents who live in the city receive power from the city’s power plant. If the city is a square, approximately how wide is the city if the area is 200 square miles?

Answers

All you have to do is square root to give you the length of the square side
Sqrt(200) = 14.1 miles^2 (1dp)

Solve the following inequality in the simplest form: 8(−x−2/3)−1≥7

Answers

The answer is as in pic
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