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Anna71 [15]
2 years ago
11

Solve this equation: 2cosx+5=4

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
8 0
\frac{2 \pi }{3}
tangare [24]2 years ago
5 0

Answer:

2pi/3 and 4pi/3

Step-by-step explanation:

Solve for cosine and you will get cosx=-1/2. Using the unit circle find every point where the x value = -1/2 (since cosine is x). You will find that the angles where x = -1/2 are 2pi/3 and 4pi/3

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Round 124,607 to the nearest hundred thousand
ANEK [815]
The answer is 100,000
<span>In order to answer this, you must got to the number in the hundred thousand spot, in this case 1, and the check the number next to it. If it is 5 or more, the number becomes bigger, and if it is less than 5, you keep the number the same. After this, any numbers to the right become zeros. </span>
6 0
2 years ago
in a random School sampling of 50 middle school students it was found that 18 students bring their lunch to school everyday if t
dem82 [27]

Answer:

340

Step-by-step explanation:

We can see in the sample that 18/50 people bring lunches to school. If we divide 18 by 50 we get 0.36 now we know that 36% of people bring their lunches in the sample. Now we take that number and multiply it by 942.

0.36*942= 339.12 which we can round to 340

5 0
2 years ago
Philip and Laura want to build a pool in their backyard. The length and width of the pool can be represented by the equation
lakkis [162]

The area of Philip and Laura's pool is 3x^2 - 13x - 10 square feet

<h3>Area of a rectangle</h3>

Givene the dimensiion of Philip and Laura's pool as:

Length = (x - 5)

Width  = (3x + 2)

Given the area expressed as:

f(x) = (x - 5)(3x + 2)feet

Taking the product will give:

f(x) = 3x^2 + 2x -15x - 10

f(x) = 3x^2 - 13x - 10

Hence the area of Philip and Laura's pool is 3x^2 - 13x - 10 square feet

Learn more on area of rectangle here: brainly.com/question/25292087

3 0
2 years ago
37 - 6 * 4 + 32 / 8 working pls​
insens350 [35]

Answer:

17 is the answer

Step-by-step explanation

3 0
3 years ago
Read 2 more answers
I CAN CONNECT DIVIDING BY A FRACTION TO MULTIPLICATION
evablogger [386]

4÷1/5=20

3÷1/10=30

3÷1/4=12

2÷1/12=24

4÷1/9=36

5÷1/6=30

4÷1/8=32

3÷1/3=9

5 0
2 years ago
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