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valina [46]
2 years ago
8

Pleaseeeee help!!!!!

Mathematics
1 answer:
solong [7]2 years ago
8 0

Answer:

.71

Step-by-step explanation:

We only need to look at the brown eyes row

2+2+10 =14

Brown hair is 10

P(brown hair) = brown hair / total

                        =10/14 =5/7 = .714285714

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Which fraction represents the decimal 0.12
ryzh [129]

Answer:

\dfrac 3{25}

Step-by-step explanation:

0.12 = \dfrac{12}{100}=\dfrac{3}{25}

8 0
2 years ago
How many different triangles, if any, can be drawn with one 90° angle and side length of 5 cm and 12 cm?
FromTheMoon [43]
Only one triangle is able to be drawn with those measurements and angle

4 0
3 years ago
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Help now pls !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
meriva

D. 25

This is the answer

5 0
3 years ago
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I NEED HELP ASP 20 points
leva [86]
Circumference
C = pi d
C = 3.14 x 10
C = 31.4 cm

Area
A = pi r^2
A = 3.14 x 5^2
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8 0
3 years ago
The base of a circular fence with radius 10 m is given by x = 10 cost, y = 10 sin t. the height of the fence at position (x, y)
antiseptic1488 [7]

The parametric equations for x and y describe a circle of radius 10 m, so the length of the base of the fence is the length of the circumference of a circle of radius 10 m. The formula for that circumference (C) is ...

... C = 2πr

... C = 2π·(10 m) = 20π m

The height as a function of angle (t) is found by substituting for x and y.

... h(t) = h(x(t), y(t)) = 4 + 0.01·((10cos(t))²-)10sin(t))²) = 4+cos(2t)

The average value of this over the range 0 ≤ t ≤ 2π is 4, since the cosine function has two full cycles in that range, and its average value over a cycle is zero.

Thus, the area of one side of the fence is that of a rectangle 20π m long and 4 m wide. That will be

... (20π m)·(4 m) = 80π m²

The amount of paint required to cover both sides of the fence is

... 2×(80π m²)×(1 L)/(10 m²) = 16π L ≈ 50.3 L

_____

You can work out the integral for area as a function of t. When you do, you will find it gives this same result.

5 0
3 years ago
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