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avanturin [10]
3 years ago
15

The sum of - 4 and twice a number.

Mathematics
1 answer:
pentagon [3]3 years ago
6 0

Answer:

-4+2x

Step-by-step explanation:

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Can someone help me?
mestny [16]

Answer:

Step-by-step explanation:

To do this, we must use the unit circle. At the angle \frac{\pi }{6} the coordinate pair is (\frac{\sqrt{3} }{2}, \frac{1}{2}) and the hypotenuse is 1

Now that we know these we can start using the trig functions

sin = y

cos = x

tan = \frac{y}{x}

And the other functions would be the reciprocal of these

csc = \frac{1}{y}

sec = \frac{1}{x}

cot = \frac{x}{y}

This would mean that

sinx = \frac{1}{2}

cosx =\frac{\sqrt{3} }{2}

tanx =\frac{1}{\sqrt{3} } or \frac{\sqrt{3} }{3} if you're supposed to rationalize your denominators

cscx = 2

secx = \frac{2}{\sqrt{3} } or \frac{2\sqrt{3} }{3}

cot = \sqrt{3}

6 0
3 years ago
A cylidrical container of height 28cm and diameter of 18cm is with water. The water is then poured into another container with a
MAVERICK [17]

Answer:

23.9894949495cm is the depth of the container.

Step-by-step explanation:

Cylindrical container:

height: 28

radius: 9 (or 18/2)

pi * 9² = 254.4690049408

254.4690049408 * 28 = 7,125.1321383424 cm²

cylidrical container area: 7,125.1321383424cm²

Container:

length: 27cm

width: 11cm

27 * 11 = 297

7,125.1321383424 / 297 = 23.9894949495cm

I assume that the container with rectangular base is precisely full when tou pour the water into it.

And that your question was how deep the container was.

4 0
4 years ago
Find the area of the shaded region. Round your answer to the nearest hundredth.
valina [46]

Answer:

  • FIRSTLY GET THE AREA OF THE WHOLE CIRCLE BY USING FORMULA
  • pi \times r ^2
  • THEN AFTER THAT DIVIDE THE AREA BY 2
  • AFTER THAT UR ANSWER WILL COME

<em>PLEASE</em><em> </em><em>MARK ME AS BRAINLIEST</em><em> </em>

3 0
3 years ago
Read 2 more answers
PLEASE HELP! 20 POINTS + BRANLIEST WILL BE GIVEN
SOVA2 [1]

Answer:

The answer is 22.5 miles

Step-by-step excplanation:

5 0
3 years ago
Use the rules of exponents to evaluate and simplify the following expression. Type all without negative exponents. Do not distri
Rainbow [258]

We are given (xy)^(-3).

This leads to 1/(xy)^3.

You see, going from the top to the bottom alters the sign of the exponent to its opposite.

ANSWER: 1/(x^3•y^3)

Did you follow?

5 0
3 years ago
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