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Oxana [17]
3 years ago
9

Use the quadratic formula to find all degree solutions and θ if 0° ≤ θ < 360°. Use a calculator to approximate all answers to

the nearest tenth of a degree. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) cos2 θ cos θ − 1

Mathematics
1 answer:
tigry1 [53]3 years ago
5 0

Answer:

Step-by-step explanation:

f(x)=cos2xcosx-1

Root f(x)=(1,0)

y-intercept=(0,-1)

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Write down three integers,all less than 25, whose range is 8, and mean is 11
MAXImum [283]

Answer:

6, 13 and 14

Step-by-step explanation:

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3 years ago
Select the correct answer<br> Which expression represents the series 1 + 5 + 25 + 125 + 6252
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The expression is 5⁵-1 (=3124)

Step-by-step explanation:

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3 years ago
How do I solve this problem step by step. -10( -4 - 2j
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-10(-4-2j)
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3 years ago
A nontoxic furniture polish can be made by combining vinegar and olive oil. The amount of oil should be three times the amount o
katen-ka-za [31]

Answer:

Oil: 10.5 oz Vinegar: 3.5 oz

Step-by-step explanation:

If the amount of vinegar is the variable x than the amount of oil is 3x. this means that x+3x=14 or 4x=14. Which means x=3.5 so vinegar is 3.5 while oil is three times that or 10.5.

8 0
3 years ago
in a school gym, the ratio of the number of boys to the number of girls was 4:3 . after 160 boys left the gym, the ratio became
Annette [7]

Answer:

300 girls were there in the gym.

Step-by-step explanation:

Given:

The ratio of the number of boys to the number of girls was 4:3, after 160 boys left the gym, the ratio became 4:5.

Now, to find the number of girls in the gym.

The girls in the gym does not left, their quantity is same before and after.

So, we multiply the both ratios to make the girls ratio same:

4:3 × 5 = 20:15

4:5 × 3 = 12:15

Now, <em>we find the units of the ratio</em>.

<em>The ratio of boys dropped down by 160</em>:

20 - 12 = 8 units.

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Now, dividing both sides by 8 we get:

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So, 1 unit = 20.

Now, girls = 15 units

So, 15 × 20 = 300.

Therefore, 300 girls were there in the gym.

3 0
3 years ago
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