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stepladder [879]
3 years ago
5

HELP PLEASE! idk the answer :(

Mathematics
1 answer:
mezya [45]3 years ago
7 0

Answer:

A because 63/4 is 15.75

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To solve y and x, I am adding a picture
Viktor [21]

Answer:

x =\sqrt 5

y = \sqrt{5

Step-by-step explanation:

Given

The attached triangle

Required

Solve for x

Considering angle 45 degrees, we have:

\cos(45) = \frac{y}{\sqrt{10}} --- cosine formula i.e. adj/hyp

Solve for y

y = \sqrt{10} * \cos(45)

In radical form, we have:

y = \sqrt{10} * \frac{1}{\sqrt 2}

y = \sqrt{10/2}

y = \sqrt{5

To solve for x, we make use of Pythagoras theorem

x^2 + y^2 = (\sqrt{10})^2

x^2 + y^2 =10

Substitute for y

x^2 + (\sqrt 5)^2 =10

x^2 + 5 =10

Collect like terms

x^2  =10-5

x^2=   5

Solve for x

x =\sqrt 5

4 0
3 years ago
Amanda is having new tile installed in her kitchen. TileAll charges a flat fee of $378.00 plus $15.00 per tile. Kitchen Plus cha
myrzilka [38]

Answer:

C = 495 + 13.05x

60 tiles.

Step-by-step explanation:

$15.00 per tile plus a flat fee of $378.00 that charges Tile All.

Therefore, for x number of tiles, the total cost of installation will be  

C = 378 + 15x ........... (1)

Again, $14.50 per tiles plus a flat fee of $550.00 that charges Kitchen Plus. Amanda has at Kitchen Plus, a 10% discount coupon.

Therefore, for x tiles installation the charges will be  

C = (550 + 14.5x)(1 - \frac{10}{100}) = 495 + 13.05x .......... (2) (Answer)

Now, if for x number of tiles both the company charges the same, then  

378 + 15x = 495 + 13.05x (From equations (1) and (2)}

⇒ 1.95x = 117

⇒ x = 60 tiles. (Answer)

3 0
3 years ago
What is bigger 3 yards or 10 feet
Studentka2010 [4]
10 feet is bigger than 3 yards I think not so positive

4 0
3 years ago
Read 2 more answers
A triangle height is 2/4 mm and the base is 8 mm. What is the area of the triangle?
Darina [25.2K]

Answer:

the answer would be 2mm^2

8 0
3 years ago
Read 2 more answers
You need to know the number of different arrangements possible for five distinct letters. You decide to use the permutations rul
svlad2 [7]
<span>First option is correct

Both methods are correct, since you are counting all possible arrangements of 5 items taken 5 at a time.</span>
3 0
3 years ago
Read 2 more answers
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