All categories

3 years ago

What is the value of X? A: x=18 B: x=48 C: x=82 D: x=98

Mathematics

2 answers:

snow_tiger [21]3 years ago

5 0

The two given angles when added together needs to equal 180 degrees ( straight line)

X + 34 + 2x + 2 = 180

Combine like terms:

3x +36 = 180

Subtract 36 from both sides:

3x = 144

Divide both sides by 3:

X = 48

The answer is B.

djyliett [7]3 years ago

5 0

Answer:

B: x=48

Step-by-step explanation:

Notice that both equations equal a 180 degree angle.

That'll give you the equation of x+34+2x+2= 180

First, add the common variables.

(x+2x)+34+2= 180

3x+ 36= 180

Now, subtract 36 to both sides of the equation.

3x+ 36= 180

-36 -36

3x= 144

Then, divide both sides by 3 to isolate the variable.

3 3

x= 48

You might be interested in

If you give me the correct answer then I will mark as brainliest

vovangra [49]

It's is b cause it is and yeah

8 0

3 years ago

Read 2 more answers

Helppppppppppppppppppppp

serg [7]

The first thing you should do in this case is to compose both functions:
f (x) = x + 7
g (x) = 1 / (x-13)
Making the composition
f (g (x)) = (1 / (x-13)) + 7
f (g (x)) = (7 (x-13) +1) / (x-13)
Answer:
The domain of the function is:
x other than 13
(option 4)

4 0

3 years ago

Read 2 more answers

Find the angle of the sector indicated. Find the correct answer to the problem.

svlad2 [7]

The correct answer is (C)!

Since the area of the circle is 400π, 150π/400π = 135/360.

6 0

3 years ago

Read 2 more answers

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estim

pogonyaev

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36$

And rounded up we have that n=656

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 80% of confidence, our significance level would be given by $\alpha=1-0.80=0.20$ and $\alpha/2 =0.10$ . And the critical value would be given by:

$z_{\alpha/2}=\pm 1.28$

Solution to the problem

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

Since we don't have prior info for the proportion of interest we can use $\hat p=0.5$ as estimator. And on this case we have that $ME =\pm 0.025$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36$

And rounded up we have that n=656

5 0

3 years ago

Graph the line with slope -3 passing through the point (5,0)

Ghella [55]

Y-y1= m(x-x1) point-slope form
y-0= -3(x-5)
solve this point-slope form to slope-intercept form. Use the information to graph the line.

4 0

3 years ago