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3 years ago

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1 answer:

Cerrena [4.2K]3 years ago

3 0

Answer:

.

1) 1/4+___=7/12

2) 5/8-___= -3/8

3) 1/3÷___= 1/9

4) (2.1)(____)=0.63

value

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Can someone help? Please!

DerKrebs [107]

We can use the Pythagorean Theorem (a^2+b^2=c^2) to find the side lengths.

15^2=12^2+x^2
225=144+x
81=x
Which gives us that x=9 (you have to remember to find the square root)
Perimeter is 2l+2w, so 2(12)+2(9) = 42
Perimeter = 42

As for the area, we just multiply 9 by 12 to get us 108
Area = 108

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5 0

4 years ago

Solve for x, show all your work: <br> x3 = 10

Alex73 [517]

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8 0

3 years ago

Read 2 more answers

Please answer question

Dmitry_Shevchenko [17]

The value of the expression $2\cos(t) + \tan^2(t)$ is 4 and the exact value of $\sin^{-1}(\sin(\frac{5\pi}{3}))$ is $\frac{5\pi}{3}$

<h3>How to determine the trigonometry expression?</h3>

The point on the unit circle is given as:

$P = (\frac 12, \frac{\sqrt{3}}2)$

A point on a unit circle is represented as: (x,y), such that:

cos(t) = x and sin(t) = y.

This means that:

$\cos(t) = \frac 12$

$\sin(t) = \frac{\sqrt 3}{2}$

Calculate tan(t) using:

$\tan(t) = \frac{\sin(t)}{\cos(t)}$

So, we have:

$\tan(t) = \frac{\frac{\sqrt 3}{2}}{1/2}$

Evaluate

$\tan(t) = \sqrt 3$

The expression is then calculated as:

$2\cos(t) + \tan^2(t) = 2 * \frac12 + (\sqrt 3)^2$

Evaluate each term

$2\cos(t) + \tan^2(t) = 1 + 3$

Evaluate the sum

$2\cos(t) + \tan^2(t) = 4$

Hence, the value of the expression $2\cos(t) + \tan^2(t)$ is 4

<h3>How to solve the arcsin expression?</h3>

The expression is given as:

$\sin^{-1}(\sin(\frac{5\pi}{3}))$

As a general rule, the arc sine of sine x is x.

This means that:

$\sin^{-1}(\sin(\frac{5\pi}{3})) = \frac{5\pi}{3}$

Hence, the exact value of $\sin^{-1}(\sin(\frac{5\pi}{3}))$ is $\frac{5\pi}{3}$

Read more about trigonometry expressions at:

brainly.com/question/8120556

#SPJ1

6 0

2 years ago

Help solving this math homework

pashok25 [27]

Answer:

angle NXo= 90-67 = 23

angle NXP=90

angle MXN= 70 + 67+ 23

MXO= 70 + 23

Step-by-step explanation:

4 0

3 years ago

What is the volume of a rectangular prism that has a length of 18 inches, a width of 1 foot, and a height of 14 inches?

Ymorist [56]

18 times 12 times 14 = 3024
Volume =3024

5 0

3 years ago