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3 years ago

Using the Law of Sine or Cosine, solve for the unknown variable (round to the

Mathematics

1 answer:

Slav-nsk [51]3 years ago

4 0

Answer:

33.18208

Step-by-step explanation:

This can be solved via Law of Sines, but I´m gonna use sines for the sake of efficiency. :P

So, you have your 3 values and unknown length x.

First set up your proportions: $\frac{sin(65)}{x}=\frac{sin(35)}{21}$

Cross multiply. $x=\frac{21sin(65)}{sin(35)}$

Simplify. $x=33.18208$

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Use parentheses to make 5+4×3×3

kherson [118]

The aNSWER IS 41..AM I RIGHT?

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3 years ago

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Two friends start at the same point. they walk in opposite directions for 3 meters, then turn left and walk another 3 meters. th

vladimir2022 [97]

3^2+3^2=18
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3 years ago

Find the value of x.

dimaraw [331]

Answer:

$2\sqrt{77}$

Step-by-step explanation:

Use the Pythagorean theorem. $a^{2} +b^{2}=c^{2}$

a and b are the two side lengths

c is the hypotenuse (value across from the right angle)

Plug in the values that you are given.

$a^{2} +4^{2} =18^{2}$

Solve for x

$x^{2} =18^{2} -4^{2}$

$x^{2} =308$

x= $\sqrt{308}$

$x=2\sqrt{77}$

5 0

3 years ago

Find the number z such that the proportion of observations that are less than z in a standard Normal distribution is 0.5414. (b)

Akimi4 [234]

Answer:

Part (a) The value of Z is 0.10396. Part (b) The value of Z is 0.410008.

Step-by-step explanation:

Consider the provided information.

Part (a)

In order to find the number z such that the proportion of observations that are less than z in a standard Normal distribution is 0.5414, simply find 0.5414 in the table and search for the appropriate Z-value.

Now, observing the table it can be concluded that the value of Z is 0.10396.

Part (b)

Consider the number 65.91%

The above number can be written as 0.6591.

Now, find 0.6591 in the table and search for the appropriate Z-value.

By, observing the table it can be concluded that the value of Z is 0.410008.

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3 years ago

2) Dorothy types 120 words per minute. How many words does Dorothy type in

Damm [24]

Answer:

D (210)

Step-by-step explanation:

120 times 1.75 equals 210

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