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3 years ago

Someone please help plewsee???????????????

Mathematics

1 answer:

kobusy [5.1K]3 years ago

3 0

Answer:

Coordinates of the new points:

A (-5,-2)

B (-2, -2)

C (-2, -5)

D (-7, -5)

Step-by-step explanation:

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Proof that :<br><img src="https://tex.z-dn.net/?f=%20%7Bsin%7D%5E%7B2%7D%20%5Ctheta%20%2B%20%20%7Bcos%7D%5E%7B2%7D%20%5C%3A%5Cth

Arisa [49]

Answer:

Solution given:

Right angled triangle ABC is drawn where <C= $\theta$

we know that

$\displaystyle Sin\theta=\frac{opposite}{hypotenuse} =\frac{AB}{AC}$

$\displaystyle Cos\theta=\frac{adjacent}{hypotenuse}=\frac{BC}{AC}$

Now

left hand side

$\displaystyle {sin}^{2} \theta + {cos}^{2} \:\theta$

Substituting value

$(\frac{AB}{AC})²+(\frac{BC}{AC})²$

distributing power

$\frac{AB²}{AC²}+\frac{BC²}{AC²}$

Taking L.C.M

$\displaystyle \frac{AB²+BC²}{AC²}$ ....[I]

In ∆ABC By using Pythagoras law we get

$\boxed{\green{\bold{Opposite²+adjacent²=hypotenuse²}}}$

AB²+BC²=AC²

Substituting value of AB²+BC² in equation [I]

we get

$\displaystyle \frac{AC²}{AC²}$

Right hand side

<h3><u>proved</u></h3>

8 0

3 years ago

Read 2 more answers

A train leaves at 11:32 and arrives at 13:24. It travelled at an average speed of 85 km/h. How far did it travel? Give your answ

Mandarinka [93]

Hope that helps!!
Answer: 158.7 km

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3 years ago

Is a diameter of circle O. If m∠ACB = 30°, what is m∠DBA? A. 30° B. 50° C. 60° D. 70° E. 90°

lesya692 [45]

Every triangle equals 180 degrees, and we're trying to find the angle of DBA. So, we can identify DAB as a 90 degree angle to start. Then we can identify that ACB = ADB, meaning ADB is 30 degrees. With that information, we have this equation:

DBA = 180 - 90 - 30

DBA = 60

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3 years ago

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Semenov [28]

Answer:

c. How much money would be in the account after 18 years?

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2 years ago

Sara rolls two dice, one black and one yellow. What is the probability that she will roll a 3 on the black die and 5 on the yell

marysya [2.9K]

Answer:

1/6 x 1/6 = 1/36

Step-by-step explanation:

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3 years ago