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3 years ago

15

How do you solve for tan-1 or tan theta without using a calculator? I don't want to rely on the calculator to solve problems tha

t involve this. Thank you :).

1 answer:

alexgriva [62]3 years ago

5 0

Answer:

Step-by-step explanation:

You need to use a calculator.

It is however useful to remember some values for tangents.

For example tan 45 degrees = 1.

Tan 30 = 1 /√3 and tan 60 = √3.

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In a company 85% of the workers are men if 510 women work for the company how many workers are there in all

tester [92]

Answer:

3400 workers

Step-by-step explanation:

85% of men that means 15% are women

15% = 510

15/100= 510/x

100x510=51000

51000/15 =3400

x=3400

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3 years ago

Yesterday Ron --- his dad make lunch. (Past time)help,helped

user100 [1]

Answer:Yesterday, Ron helped his father

Step-by-step explanation:

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3 years ago

Using the quadratic formula to solve 11x^2-4x=1 what are the values of x ?

Kaylis [27]

The answer should be the 1st one.

Just use the quadratic formula and plug in the necessary numbers when requested and work from there.

8 0

3 years ago

Sam invests $6000 in two different accounts. The first account paid 12 %, the second account paid 7 % in interest. At the end of

Lunna [17]

Answer:

The amount in the account at 12% interest is $3400 and the amount in the second account at 7% interest is $2600

Step-by-step explanation:

Let x be the amount in the account at 12% interest

So, 6000-x is the amount in the second account at 7% interest

$SI = \frac{P \times T \times R}{100}$

First account: $SI=\frac{x \times 1 \times 12}{100}$

Second account : $SI =\frac{(6000-x) \times 1 \times 7}{100}$

We are given that At the end of the first year he had earned $590 in interest.

So, $\frac{x \times 1 \times 12}{100}+\frac{(6000-x) \times 1 \times 7}{100}=590\\x=3400$

So,the amount in the account at 12% interest is $3400

The amount in the second account at 7% interest =6000-x=6000-3400=2600

Hence the amount in the account at 12% interest is $3400 and the amount in the second account at 7% interest is $2600

8 0

4 years ago

(25 POINTS!) Identify the like terms, explain how you know they are

Hatshy [7]

Answer:

Step-by-step explanation:

Like terms: 10y, -2y, 3x, and x

These are all like terms since they have a similar variable

Simplifying the expressions:

10y + 3x + 10 + x -2y = [(10y + -2y) + (3x + x)] + 10

= 8y + 4x + 10

Like terms: 3x, 4x, y, and -2y

Same as first explanation, terms have a similar variable

3x - y + 4x + 6 - 2y = (3x + 4x) + (-2y - y) + 6

= -3y + 7x + 6

Hope I helped :)

8 0

3 years ago