All categories

3 years ago

PLEASE HELP ME IF POSSIBLE :)

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

3 0

Answer:

The scale drawing is correct for the length;

$\overline{BC} = 5\dfrac{34}{35} \ in.$

Step-by-step explanation:

The diagram shows the rectangular cross-section of a roof truss

The given dimension of the side $\overline{AB}$ of the roof truss scale drawing = 9.5 in.

The actual length of the side $\overline{AB}$ on the roof truss = 38 feet

The actual length of the side $\overline{BC}$ on the roof truss = 22 feet

Therefore, the scale of the scale drawing is given as follows;

The scale of the drawing = (Scale dimension)/(Actual dimension)

38 feet = 9.5 inches on the drawing

∴ 1 foot = 9.5 inches/35 = 19/70 inches on the drawing

1 foot = 19/70 inches on the drawing

22 feet = (19/70 inches × 22) on the drawing = $5\frac{34}{35}$ inches on the drawing

The length of $\overline{BC}$ on the scale drawing = $5\frac{34}{35}$ inches.

You might be interested in

If Mike gets paid $200 per week plus $5 per hour for every hour he works while Mark

NeTakaya

Answer:

-0oiuytrgfghjklkjjjjjjjjjjjjjjjjjjjjj

8 0

3 years ago

Evaluate the integral by interpreting it in terms of areas Draw a picture of the region the integral

denis23 [38]

Answer:

Step-by-step explanation:

The picture is below of how to separate this into 2 different regions, which you have to because it's not continuous over the whole function. It "breaks" at x = 2. So the way to separate this is to take the integral from x = 0 to x = 2 and then add it to the integral for x = 2 to x = 3. In order to integrate each one of those "parts" of that absolute value function we have to determine the equation for each line that makes up that part.

For the integral from [0, 2], the equation of the line is -3x + 6;

For the integral from [2, 3], the equation of the line is 3x - 6.

We integrate then:

$\int\limits^2_0 {-3x+6} \, dx+\int\limits^3_2 {3x-6} \, dx$ and

$-\frac{3x^2}{2}+6x\left \} {{2} \atop {0}} \right. +\frac{3x^2}{2}-6x\left \} {{3} \atop {2}} \right.$ sorry for the odd representation; that's as good as it gets here!

Using the First Fundamental Theorem of Calculus, we get:

(6 - 0) + (-4.5 - (-6)) = 6 + 1.5 = 7.5

5 0

3 years ago

Is this correct question correct?

____ [38]

No, it is not correct.

First of all, you put the little 4 after the 8.

What you did in the equation is 8x4, not 8x8x8x8.

So, the correct answer to 8x8x8x8 would be 4096.

Any Questions? Comment Below!

-AnonymousGiantsFan

4 0

4 years ago

Read 2 more answers

Last year, 1,920 athletes finished the Cedarburg Marathon. This year, the number of runners

padilas [110]

Answer:

1,632

Step-by-step explanation:

the 15% of 1,920 is 288 subtract it to 1,920 so you'll get 1,362 is the number of athletes finished the race this year

8 0

2 years ago

Solve the system of linear equations by substitution. 4x−2y=14 y=12x−1

Alexus [3.1K]

Answer:

The answer is (-0.7, -9.4)

Step-by-step explanation:

1) Since we are using the substitution method, and we know that y = 2x-1, in the first equation, plug that into y. It should look like this:

4x-2(12x-1) = 14

4x -24x + 2 = 14

2) Combine like terms and continue to simplify until you get a direct answer for each variable.

-20x + 2 = 14.

-20x = 12.

x = -7/10 (or -0.7)

3) Now we know what x equals, so to find our y-coordinate, we will plug this into either equation.

y = 12(-7/10) -1

y= -84/10 -1

y= -9.4

4) Now that we have our x value and y value, we know our point. The solution is (-0.7, -9.4).

3 0

3 years ago