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3 years ago

Is the sqrt of 1 - sin^2 theta = cos theta true? If so, in which quadrants does angle theta terminate?

Mathematics

1 answer:

Genrish500 [490]3 years ago

7 0

Answer:

Answer: The answer is option B.

Step-by-step explanation:

Here,

We have,

${ \sin }^{2} theta \: + {cos}^{2}theta = 1$

${cos}^{2} \: theta = 1 - {sin}^{2} \: theta$

$cos \: theta = \sqrt{1 - { \sin }^{2}theta }$

So, it's true; and it lies in quadrant 1 and 4.

The reason according to the "CAST" rule cos theta is in 1st and 3rd quadrant cos theta is positive.

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How do you multiply 342 and 13.5

Kaylis [27]

Answer:

Step-by-step explanation: first multiply 342 and 135

then put the decimal just before the ones digit.

answer is

4617.0

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4 years ago

There are 888 employees on The Game Shop's sales team. Last month, they sold a total of ggg games. One of the sales team members

luda_lava [24]

Answer:

$\frac{g}{8}-17$ games

Step-by-step explanation:

Employees: 8

Sales last month: g

Average: $\frac{totalGames}{Employees}$

To find out how many games Chris sold, we have to take the average and subtract 17.

$\frac{g}{8}-17$

Since there are no more values we can use, this is as simple as we can get it. If we knew how many games they sold last month, we could get an exact answer for Chris using this expression.

7 0

3 years ago

Read 2 more answers

A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 higher than in the firs

Rus_ich [418]

0.035x+0.045x=427.50
0.08x=427.50
x=427.50/0.08
x=5343.75

x+x+1500=5343.75
2x=5343.75-1500
2x=3843.75
x=1921.88 first
1921.88+1500=3421.88 second

8 0

4 years ago

An online retailer collects 7% sales tax. If the sub total of the purchase is $76.00, then how much is collected for sales tax?

jok3333 [9.3K]

The collected tax on purchase of $76.00 is $5.32

Further explanation:

The sales tax is calculated on the total sales by the formula

$Tax = total * \frac{7}{100}$

Given

Total purchase = $76.00

Percentage of tax = 7%

So,

Putting the values in the formula

$Tax\ amount = 76.00 * \frac{7}{100}\\= 5.32$

So, the collected tax on purchase of $76.00 is $5.32

Keywords: Tax, tax calculation

Learn more about tax calculation at:

#LearnwithBrainly

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3 years ago

Evaluate another function please

kari74 [83]

Answer:

70, I think

Step-by-step explanation:

f(10)= -10^2- 3(10)

f(10)= 100-30

f(10) = 70

6 0

3 years ago