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deff fn [24]
2 years ago
15

QUESTION 18

Mathematics
1 answer:
Zolol [24]2 years ago
3 0

Answer:

0.72

Step-by-step explanation:

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x=-3

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follow the PEMDAS method then see if the 2 equation equal each other after plugging in the x.

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120strip

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**The domain of f(x) = 3x + 2 is<br> {-1 in the range?
harkovskaia [24]

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Yes

Step-by-step explanation:

Graph this function on your calculator and you will see an upwards graph, if the range (y), -1 can be mapped on the graph, it is within the range.

6 0
3 years ago
Given that sin theta = 1/4, 0
GaryK [48]
Answer: cos(Θ) = (√15) / 4

Explanation:

The question states:

1) sin(Θ) = 1/4

2) 0 < Θ < π / 2

3) find cos(Θ)

This is how you solve it.

1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

(cos \alpha )^2 + (sin \alpha )^2 =1

2) From which you can find:

(cos \alpha )^2 = 1 - (sin \alpha )^2

3) Replace sin(α) with 1/4

=> (cos \alpha )^2 = 1 - (1/4)^2 = 1 - 1/16 = 15/16

=> cos \alpha =+/- \sqrt{15/16} = +/- (\sqrt{15} )/4

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:

cos(Θ) = \sqrt{15} /4.

And that is the answer.
6 0
3 years ago
Ethan's mom tried a new bean soup recipe. She used 2 cups of black beans and 5 cups of kidney beans. The family loved it, so she
bezimeni [28]

Answer:

no the amount of Kidney beans is not proportional to the amount of black beans

Step-by-step explanation:

6 0
3 years ago
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