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3 years ago

If x = 7, which equations are true?

Mathematics

2 answers:

kykrilka [37]3 years ago

6 0

Step-by-step explanation:

We need the attatchments..

Rom4ik [11]3 years ago

5 0

Answer:

you did not attach a picture

Step-by-step explanation:

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a farmer plants 265 acres of cotton and soybeans in the ratio of 12 to 8. How many acres of cotton did he plant?

Mkey [24]

Answer: He planted 159 acres of cotton

Step-by-step explanation: divide 265 by 20 then multiply that number by 12 for the answer. if you wanna double check me but this is right.

8 0

2 years ago

Which of these is not a method used to calculate finance charges?

ElenaW [278]

Answer:

C is the answer usual balance.

3 0

2 years ago

Solve: 2cos(x)-square root 3=0 for 0 less than x less than 2 pi

Leona [35]

Answer:

The general solution of $cos x = cos(\frac{\pi }{6})$ is

x = 2nπ± $\frac{\pi }{6}$

The general solution values

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

Step-by-step explanation:

Explanation:-

Given equation is

$2cosx-\sqrt{3} =0 for 0$

$2cosx =\sqrt{3}$

Dividing '2' on both sides, we get

$cos x =\frac{\sqrt{3} }{2}$

$cos x = cos(\frac{\pi }{6})$

General solution of cos θ = cos ∝ is θ = 2nπ±∝

Now The general solution of $cos x = cos(\frac{\pi }{6})$ is

x = 2nπ± $\frac{\pi }{6}$

put n=0

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

Put n=1

$x = 2\pi +\frac{\pi }{6} = \frac{13\pi }{6}$

$x = 2\pi -\frac{\pi }{6} = \frac{11\pi }{6}$

put n=2

$x = 4\pi +\frac{\pi }{6} = \frac{25\pi }{6}$

$x = 4\pi -\frac{\pi }{6} = \frac{23\pi }{6}$

And so on

But given 0 < x< 2π

The general solution values

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

6 0

3 years ago

Help on algebra please?

rodikova [14]

The first option is the one!

6 0

3 years ago

Read 2 more answers

A square park is 75 m long. Find the area of the park.

Inga [223]

5625 m^2

If is is square, all sides must be congruent (all sides are 75m). To find area, you multiply width x length (how long). Therefore:

75m x 75m = 5626 m^2

3 0

3 years ago