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marin [14]
4 years ago
15

Help me i'm crying help me

Mathematics
2 answers:
Norma-Jean [14]4 years ago
7 0

Answer:

See below and learn

Step-by-step explanation:

To solve the figure. You need to split the shape up with the lines shown.

Let's solve the top triangle first.

The formula to find the area of a triangle is y = 1/2(b*h)

So the base is 2+2+6 which equals 10. And the height is 4.

So y = 1/2(4*10)

PEMDAS solve parentheses first.

y = 1/2(40)

y = 20cm^{2}

Now solve the bottom left one.

y = 1/2(2*2)

y = 1/2(4)

y = 2cm^{2}

Now the bottom right triangle.

y = 1/2(6*2)

y = 1/2(12)

y = 6cm^{2}

And to solve area of a square is

y = b*h

y = 2*2

y = 4cm^{2}

And add all of it up to get

y = 20cm^{2}+2cm^{2} +6cm^{2} +4cm^{2} = 32cm^{2}

Area = 32cm^{2}

lubasha [3.4K]4 years ago
6 0

Answer:

Get a tissue blow your nose and wipe your tears

Step-by-step explanation:

Tell Mommy

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solong [7]

Answer:

x = 182.53

Step-by-step explanation:

Use trigonometric ratios to find the whole side length (a) adjacent to 20° and the side length (b) adjacent to 57° respectively. Then find the difference. That would give you the value of x. That is: a - b = x

Let's solve.

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Opp = 87

Adjacent length = ? = a

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Thus,

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Plug in the values

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tan(20) \times a = \frac{87}{a} \times a

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\frac{tan(20) \times a}{tan(20)} = \frac{87}{tan(20)}

a = \frac{87}{tan(20)}

a = 239.03

Finding the side length adjacent to 57°:

Opp = 87

Adjacent length = ? = b

\theta = 57

Thus,

tan(\theta) = \frac{opposite}{adjacent}

Plug in the values

tan(57) = \frac{87}{b}

Multiply both sides by b

tan(57) \times b = \frac{87}{b} \times b

tan(57) \times b = 87

Divide both sides by tan(57)

\frac{tan(57) \times b}{tan(57)} = \frac{87}{tan(57)}

b = \frac{87}{tan(57)}

b = 56.50

Therefore:

x = a - b

x = 239.03 - 56.50

x = 182.53

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Answer: 1

B is the center of a circle of radius 1.  A and C are on the circle 100 degrees apart.  So arc AC is 100 degrees.  Arc AC the long way around is 360-100=260 degrees.   That means any point D on arc AC will subtend a 130 degree angle.  BD is a radius for all of those, and the radius is 1.

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The speed of a boat in still water is 50km/h. It takes the same time for the boat to
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The speed of a boat in still water (b) is 50km/h. It takes the same time (t) for the boat to travel 10km (x) upstream as it does to travel 20km (y) downstream. Find the speed of the current.​

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10(50+s) = 20(50-s)

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Answer:

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= 10√3 yd

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