2 years ago

Malia tried to prove that cos pheta = sin 90 degrees - pheta using the following diagram. her proof is not correct.

Mathematics

1 answer:

quester [9]2 years ago

6 0

Answer:

Malia used the wrong sides in her ratio for sin (90-0)

Step-by-step explanation:

Got it right on Khan academy

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Answer:

the answer is D

Step-by-step explanation:

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3 years ago

zach deposits $15,000 into his savings account. his savings account has an annual interest rate of 1.4%. how much money in inter

Orlov [11]

Do $15,000x.014x2
--
$15,000x.014=$210
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3 years ago

189,900 times 100,000

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3 years ago

What is the diameter of circle T?

Ratling [72]

Answer:

$Diameter = 16$

Step-by-step explanation:

Given

$\theta = 72$

$Sector = \frac{64}{5}\pi$

Required

Calculate the diameter

The area of a sector is:

$Area = \frac{\theta}{360} * \pi r^2$

Substitute values for Area and $\theta$

$\frac{64}{5}\pi = \frac{72}{360} * \pi r^2$

Divide both sides by $\pi$

$\frac{64}{5} = \frac{72}{360} * r^2$

Make $r^2$ the subject

$\frac{64*360}{5*72} = r^2$

$\frac{64*360}{360} = r^2$

$64 = r^2$

Take positive square roots of both sides

$\sqrt{64} = r$

$8 = r$

$r = 8$

The diameter is then calculated as:

$Diameter = 2r$

$Diameter = 2*8$

$Diameter = 16$

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2 years ago

The circumstance of earth is approximately 4.0×10^7m. type the distance in standard form

zimovet [89]

40,000,000 m since its in standard form

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2 years ago

Read 2 more answers