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anzhelika [568]
3 years ago
14

-0.38 written as a fraction is _____. -7/18 -15/36 2/5

Mathematics
1 answer:
nadezda [96]3 years ago
7 0
None of the choices is correct. -0.38 written as a fraction is -38/100 . It can be reduced to -19/50 .
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Find the area of the trapezoid to the nearest tenth.
erica [24]

Answer:

2.2 metres squared

Step-by-step explanation:

We need to find the area of this trapezoid.

The area of a trapezoid is denoted by:

A=\frac{(b_1+b_2)h}{2}, where b_1 and b_2 are the parallel bases and h is the height

Here, we already know the lengths of the two bases; they are 0.9 metres and 2.3 metres. However, we need to find the length of the height.

Notice that one of the angles is marked 45 degrees. Let's draw a perpendicular line from top endpoint of the segment labelled 0.9 to the side labelled 2.3. We now have a 45-45-90 triangle with hypotenuse 2.0 metres. As one of such a triangle's properties, we can divide 2.0 by √2 to get the length of both legs:

2.0 ÷ √2 = √2 ≈ 1.414 ≈ 1.4

Thus, the height is h = 1.4 metres. Now plug all these values we know into the equation to find the area:

A=\frac{(b_1+b_2)h}{2}

A=\frac{(0.9+2.3)*1.4}{2}=2.2

The answer is thus 2.2 metres squared.

<em>~ an aesthetics lover</em>

8 0
3 years ago
A diagonal of a square is 36 feet long. What is the area of the square?
Rzqust [24]
So you can you the Pythagorean theorem to solve this problem.

if each side of the square is a certain length x, then the square is made up of two right triangles.

the sides adjacent to the right angle are length x while the hypoteneus is the diagonal whcih measures 36 feet.

a^2 + b^2 = c^2

x^2 + x^2 = 36^2

2x^2 = 1296

x^2 = 648

x = 25.456

area of a square = x^2 = 648 ft^2
3 0
3 years ago
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Leokris [45]

Answer:

x+5 is the factor..

Step-by-step explanation:

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or, xsquare +8x+5x+40

or, x(x+8)+5(x+8)

(x+5)(x+8)

4 0
3 years ago
6 through 9, I just need the answers ‍♂️
wariber [46]
The answer is down below following the order 6~9
6. A
7. C
8.C
9. D
3 0
3 years ago
Steven wants to equally share his pizza with his three sisters what fraction of the pizza does he in each sister receive
lakkis [162]
1 (Steven) + 3 sisters = 4
They each recieve, 1/4,2/8 or 2 slices of the pizza
6 0
3 years ago
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