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tigry1 [53]
3 years ago
9

I need help with this please

Mathematics
1 answer:
Law Incorporation [45]3 years ago
5 0

the angle of that is a right angle I think hope this helps

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A brace for a shelf has the shape of a right triangle. Its hypotenuse is 10 inches long and the two legs are equal in length. Ho
vagabundo [1.1K]
This is a classic example of a 45-45-90 triangle: it's a right triangle (one angle of 90) & two other sides of the same length, which means two angles of the same length (and 45 is the only number that will work). With a 45-45-90 triangle, the lengths of the legs are easy to determine:
45-45-90
1-1-sqrt2
Where the hypotenuse corresponds to sqrt2.
Now, your hypotenuse is 10.
To figure out what each leg is, divide 10/sqrt2 (because sqrt2/sqrt2 = 1, which is a leg length in the explanation above).
Problem: you can't divide by radicals. So, we'll have to rationalize the denominator:
(10•sqrt2)/(sqrt2•sqrt2)
This can be rewritten:
10sqrt2/sqrt(2•2)
=10sqrt2/sqrt4
=10sqrt2/2
=5sqrt2 Hope this helps!!
3 0
3 years ago
Choose the three rectangular prisms that have a volume of 24 cm3.<br> = 1 cm<br> A.<br> D.<br> E.
OlgaM077 [116]

Answer: I think is A, D, E

Step-by-step explanation:

8 0
3 years ago
Simplify 6(3-y)<br><br> The simplified expression is __
ICE Princess25 [194]
Distribute and you will find 6(3)+6(-y)=18+(-6y)=18-6y
8 0
3 years ago
Read 2 more answers
help!!! Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes. y=2x+4
zhannawk [14.2K]

y- intercept = (0, 4), x-intercept = (- 2, 0)

to find the intercepts let x = 0 and y = 0 in the equation

x = 0 → y = 0 + 4 =4 ⇒ y-intercept (0, 4)

y = 0 → 2x + 4 = 0 ⇒ x = - 2 ⇒ x- intercept(- 2, 0)


8 0
3 years ago
Can anyone please help me find the length of X? <br>​
Alex_Xolod [135]

Solution:

<u>Note that:</u>

  • 2(Perimeter of smaller triangle) = Perimeter of larger triangle

<u>Using the perimeter of the smaller triangle, solve for x.</u>

  • 2(Perimeter of smaller triangle) = Perimeter of larger triangle
  • => 2(3.5 + x + h) = 7 + 4 + 2h
  • => 7 + 2x + 2h = 7 + 4 + 2h
  • => 2x = 4
  • => x = 2

The length of x is 2 units.

8 0
2 years ago
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