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GalinKa [24]
2 years ago
14

Trigonometry for anyone who’s bored

Mathematics
2 answers:
Reptile [31]2 years ago
6 0

Answer:

x= 68.19°

Step-by-step explanation:

you can use inverse of cos(x)

cos^{-1}(\frac{2}{5}) =68.19°

∴ x=68.19°

frosja888 [35]2 years ago
4 0

Answer:

we can find the value of x using cos.

cos=adjacent side/hypotenuse

cos(x)=2/5\\

Using inverse cos, we can find the value of x

cos^-1(2/5)=66.42182152\\x=66

(Rounded)

Step-by-step explanation:

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Find the inverse y=3x+2
Gwar [14]

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4 0
3 years ago
when full the gas tank of a car holds 15 gallons. it now contains 12 gallons. what percent represents how full the tank is?
Masteriza [31]

Hello!

to find the percent of a whole, use this equation here:

(remaining) / (total) = X

X * 100 = %

in this case:

12 / 15 = 0.8

0.8 * 100 = 80

your answer is 80%

I hope this helps, and have a nice day!

5 0
3 years ago
What is 35 percent of 135
Natalka [10]
<h2>Answer:</h2><h2>47.25</h2><h2 /><h2>Hope this helps!!</h2>
6 0
2 years ago
Read 2 more answers
Again help, i don’t understand this at all
Semenov [28]

Answer:

<em>The difference quotient of f is 8. </em><em>Option C</em>

Explanation:

<u>Difference Quotient</u>

Given a function f(x), the difference quotient is defined as

\displaystyle d=\frac{f(h+h)-f(x)}{h},\ h\neq 0

The function provided in the question is

f(x)=8x+1

Find f(x+h) by substituting x by x+h:

f(x+h)=8(x+h)+1

f(x+h)=8x+8h+1

Now compute:

\displaystyle d=\frac{8x+8h+1-(8x+1)}{h}

Operating:

\displaystyle d=\frac{8x+8h+1-8x-1}{h}

Simplifying:

\displaystyle d=\frac{8h}{h}

d=8

A.  Incorrect.

This choice is different from the answer.

B. Incorrect.

This choice is different from the answer.

C. Is correct

The difference quotient is 8 as explained above.

D. Incorrect.

This choice is different from the answer.

4 0
3 years ago
In the exercise, X is a binomial variable with n = 5 and p = 0.2. Compute the given probability. Check your answer using technol
Ronch [10]

Answer:

0.0512

Step-by-step explanation:

We are told in the question that X isa Binomial variable. Hence we solve this question, using the formula for Binomial probability.

The formula for Binomial Probability = P(x) = (n!/(n - x) x!) × p^x × q ^n - x

In the above question,

x = 3

n = 5

p = probability for success = 0.2

q = probability for failures = 1 - 0.2 = 0.8

P(x) = (n!/(n - x) x!) × p^x × q ^n - x

P(3) = (5!/(5 - 3) 3!) × 0.2^3 × 0.8^5-3

P(3) =( 5!/2! × 3!) × 0.2³ × 0.8²

P(3) = 10 × 0.008 × 0.64

P(3) = 0.0512

6 0
3 years ago
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