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2 years ago

6

Triangles are used for strength in roof trusses. In the diagram, UV and VW are midsegments of RST. Find UV and RS. RWT= 90in. VW

= 57in.

1 answer:

velikii [3]2 years ago

7 0

Answer:

I believe UV=45 and RS=114

<h2>THIS COULD BE WRONG, IF IT IS I'M SORRY, THIS IS THE ANSWER I GOT</h2>

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Jessica is selling books during the summer to earn money for college. She

faltersainse [42]

It’s c I just took the test and got a hundred

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3 years ago

F(x) = 3x + 8; g(x) = 5x - 9<br> (a) Find (f + g)(x).

AysviL [449]

Answer: f(x) = 8x -1

Step-by-step explanation:

( f + g )x = 3x + 5x + 8 - 9

( f + g)x = 8x - 1

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3 years ago

I need help What is the surface area of the following figure? A 168 B 192 PLEASE HELP

Juliette [100K]

Answer:

<u>305 in^2</u>

Step-by-step explanation:

First step is always to break up the problem into parts and write out our formulas- in this case, let's solve the easier part first, the bottom rectangular box type shape.

Area of a square or rectangle: A= length * height

Area of a triangle: A = 1/2 * length * height

Each side is 6x2, making each side 12 in^2, times four sides equals 48 in^2

The box also has a bottom, with dimensions of 6x6, equaling 36 in^2. <em>be careful not to include the top, it may be included in this part of the problem that we're splitting up, but it's not in the actual figure</em>.

Next up is the top portion- let's calculate the two triangular sides first. again, A=(1/2)l*h . so, these triangles are (1/2) * 5 * 4 , or 10 in^2 . With two triangular sides that's 20 in^2 total.

And now we only have two sides left, the rectangular parts of the triangular prism. They have a dimension of 5*6, equalling 30, and with two sides its a total of 60 in^2.

All of these sides can be added together:

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3 0

3 years ago

Read 2 more answers

If the cost of an item increased by a percentage and decreased by the same percentage, what would that percentage be if the new

Orlov [11]

The percentage, if the new cost was 84% of the original is 40%

Let the cost of the item be x.

When the price increased by y%, the new price is:

$New =x \times (1 + y\%)$

When the price decreased by the same percentage (i.e. y%), the new price is:

$New =x \times (1 + y\%) \times (1 - y\%)$

The cost is said to be 84% of the original price.

So, we have:

$x \times (1 + y\%) \times (1 - y\%) =84\% \times x$

Divide both sides by x

$(1 + y\%) \times (1 - y\%) =84\%$

Apply the difference of two squares

$1 - (y\%)^2 =84\% \\\\$

Subtract 1 from both sides of the equation

$- (y\%)^2 =-16\%$

Cancel out the common factors

$(y\%)^2 =16\%$

Take the square root of both sides

$y\% =0.4$

Multiply both sides by 100

$y =40$

Hence, the percentage is 40%

Read more about percentage change at:

brainly.com/question/809966

8 0

2 years ago

Maria correctly answered 16 of the 20 questions. What fraction of the questions did she answer correctly?

densk [106]

16/20
Simplified to 8/10
Again simplified to 4/5.

3 0

3 years ago