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strojnjashka [21]
3 years ago
13

PLEASE HELP HELP HELP HELP HELP PLEASENPLEASE PLEASE IM SO DESPERATE

Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

Marci got 2 more right she had 42

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A right triangle has an area of 50 square inches. If the triangle is an isosceles triangle, what are the lengths of the legs of
Fed [463]
<span>If this is an isosceles triangle, then it has two 45 degree angles corresponding to two legs of equal length.  Orient the base of this triangle so that it's horizontal, and represent its length by b.  Let h represent the height of the triangle.  Then the area of this right triangle is 50 square inches = (1/2)(b)(h), or A = (b/2)h = 50 in^2.   

Due to the 45 degree angles, the height of this triangle is equal to half the base, or h = b/2.  Thus, (b/2)h = 50 becomes (b/2)(b/2) = 50, or b^2=200. Thus, b = 10sqrt(2), and h=(1/2)(10 sqrt(2)), or h = 5sqrt(2).

The length of one of the legs is the sqrt of  [5sqrt(2)]^2+[5sqrt(2)]^2, or

sqrt(25(2)+25(2)) = sqrt(100) = 10.



</span>
4 0
3 years ago
The ratio of girls to boys is 4:5 if there are 27 total students how many are girls? Boys?
kompoz [17]
4/9 x 27 = girls
12 girls


5/9 x 27 = boys
15boys
4 0
3 years ago
A newspaper reported that in one year the United States imported goods from China worth a total of 385 billion dollars. What is
8_murik_8 [283]

Answer:

I dont known this one is hard

4 0
3 years ago
A sheet metal company had 5 contracts last month. The contracts were worth $5600, $2800, $7450, 1900, and $8900. Materials, sala
viktelen [127]

Answer:

Step-by-step explanation:

Do percent Proportions

23,750           x                                        

               ______

______      100

5

Cross multiply

23,750×100= 2375000

5×x= 5x

2375000÷5+

idk sorry

7 0
2 years ago
Plz hellppppp me u won’t regret it
nexus9112 [7]

Answer:

Area of circle = 200.96 units²

Step-by-step explanation:

The formula to find the area of a circle is: πr², where r is the radius (which is half of the diameter)

So the diameter is 16 and of 16 is 8, which is the radius.

Sub it into the formula of a circle and you would get the area of a circle.

3.14 x 8²

Use calculator

Area of circle = 200.96 units²

8 0
2 years ago
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