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raketka [301]
3 years ago
13

Help please!!! I don’t understand this question

Mathematics
1 answer:
Elenna [48]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Let us first write an equation. Using the SOHCAHTOA rule, we should know that the tangent of an angle equals it's \frac{opposite}{adjacent}. The opposite of our given 20° angle is 9, and the adjacent side is <em>x</em>.

tan(20°)=\frac{9}{x}

0.364=\frac{9}{x} \\x=\frac{9}{0.364}\\x=24.7

<u>C</u>

<em />

<em>I hope this helps! Let me know if you have any questions :)</em>

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Bond [772]

Answer:

yes

Step-by-step explanation:

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3 years ago
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Find the inverse of f(x) = 2x³ – 4.
VladimirAG [237]

Answer:

6(2x)²=24x²

Step-by-step explanation:

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3 years ago
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In her hall closet,Maria has a shelf that contains nothing but washcloths.This shelf contains four white washcloth and twice as
natta225 [31]

Ah, probability. A family favourite(In my case)

Answer: 1/4 (8/32 simplified)

Step-by-step explanation:

To answer the question, first let's find out how many green and red washcloths there are.(w representing white, g representing green, and r representing red)

There are twice as many g washcloths as w washcloths, so we multiply 4x2 and get eight g washcloths.

Now that we've found out how many g washcloths are there we can multiply 8x2 to get 16 r washcloths.

Now we add them all of to get 32 total wash cloths, and the probability can be shown as 8/32 simplified as 1/4

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3 years ago
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Find the vertical and horizontal asymptote if they exist
tresset_1 [31]

Hello!

Vertical asymptotes are determined by setting the denominator of a rational function to zero and then by solving for x.

Horizontal asymptotes are determined by:

1. If the degree of the numerator < degree of denominator, then the line, y = 0 is the horizontal asymptote.

2. If the degree of the numerator = degree of denominator, then y = leading coefficient of numerator / leading coefficient of denominator is the horizontal asymptote.

3. If degree of numerator > degree of denominator, then there is an oblique asymptote, but no horizontal asymptote.

To find the vertical asymptote:

2x² - 10 = 0

2(x² - 5) = 0

(x - √5)(x + √5) = 0

x = √5 and x = -√5

Graphing the equation, we realize that x = -√5 is not a vertical asymptote, so therefore, the only vertical asymptote is x = √5.

To find the horizontal asymptote:

If the degree of the numerator < degree of denominator, then the line, y = 0 is the horizontal asymptote.

Therefore, the horizontal asymptote of this function is y = 0.

Short answer: Vertical asymptote: x = √5 and horizontal asymptote: y = 0

7 0
3 years ago
In a random sample of 500 handwritten zip code digits, 464 were read correctly by an optical character recognition (OCR) system
In-s [12.5K]

Answer:

z= 2.38

P = 0.008656

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The degree of confidence = 90%

z₀.₀₅ = 1.645 for  α= 0.05

We use the test statistic

z=  x- np/√npq

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z= 466- 450/ √45

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If H0 is true the P value is calculated as

P = 1- Ф( 2.38)

P = 1-0.991344=0.008656

7 0
4 years ago
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