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Sergeeva-Olga [200]
2 years ago
12

What is the length of AC? What is the measure of angle A? What is the measure of angle B?

Mathematics
1 answer:
kipiarov [429]2 years ago
6 0

Answer/Step-by-step explanation:

✔️Find AC using Pythagorean Theorem:

AC² = 25.2² - 11.3²

AC² = 507.35

AC = √507.35

AC = 22.5 (nearest tenth)

✔️Find m<A using trigonometric ratio:

Reference angle = A

Opp = 11.3

Hyp = 25.2

Sin(A) = opp/hyp

Sin(A) = 11.3/25.2

A = sin^{-1}(11.3/25.2)

A = 26.6° (nearest tenth)

✔️Find m<B using trigonometric ratio:

Reference angle = B

Adj = 11.3

Hyp = 25.2

Cos(A) = adj/hyp

Cos(A) = 11.3/25.2

A = cos^{-1}(11.3/25.2)

A = 63.4° (nearest tenth)

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Tan(x)=2
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<span>Tan(x)=2
Or for x=45 tan(x)=1
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2 years ago
Leila works as a tutor for an hour and as a waitress for an hour. This month, she worked a combined total of hours at her two jo
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Answer:

E(t)  =  5t +672     ($)

Step-by-step explanation:     INCOMPLETE QUESTION

FROM GOOGLE

she earns 12 $ per hour as tutor and 7 $ per hour as waitress, this month she worked a combined of 96 hours at her two jobs

Let be t the numbers of hours Leila works as tutor this month

Answer:

If Leila worked t hours as tutor then, she worked (96 - t) hours as waitress

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E(t)  =  12t   +  672 - 7t

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7 0
3 years ago
What is the equation of the line that has a slope of 4 and passes through then point (3,-10)?
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➷ Substitute the x and y values into the equation:

y = mx + c

'm' is the slope, which we know is 4

-10 = 4(3) + c

- 10 = 12 + c

c = -22

The equation is y = 4x -22

<h3><u>✽</u></h3>

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3 years ago
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Answer:

An experimental research and particularly a quasi experimental study.

Step-by-step explanation:

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for example, I can conduct an extensive experimental study on the long term effects of exhaust fumes on the passengers (particularly adults between the ages of 25-50) of public transport in Nigeria. this will be studied and their effects will be compared and a conclusion will be reached on the exposure and the non exposure as the case maybe. most underlying conditions of experimental study are under the direct control of the researcher of the investigator. there are three different types of experimental research ; Pre-experimental study, quasi-experimental study and true-experimental study.

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