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Aliun [14]
3 years ago
10

What is the value of X!?

Mathematics
1 answer:
Bezzdna [24]3 years ago
6 0
6 I think but not sure
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Rolling a die. What is the sample space of the experiment? What is the probability of getting a 1 or a 2?
Anvisha [2.4K]

A die has 6 sides, so rolling a 1 out of all six would be 1/6 which equals a 0.16% chance and same goes for a 2/6.

(Mark as brainliest if I helped in anyway, pls and thanks:))

4 0
3 years ago
You are going to buy doughnuts for your coworkers. You buy 2 boxes of glazed doughnuts for $3.99 each, 3 boxes of chocolate-cove
Georgia [21]
2 x 3.99 = 7.98
3 x 4.49 = 13.47
1 x 4.99 = 4.99
Total:  26.44

50.00 - 26.44 = 23.56
6 0
3 years ago
Read 2 more answers
I dont know the answers for these .Need help
zvonat [6]

Answer:

123°, 57°, 123°

46°, 90°

Step-by-step explanation:

28. m∠L=57° ⇒ opposite angle  m∠J=m∠L=57°

m∠M= m∠K= 180° -m∠L= 180° - 57°= 123°

29. m∠W= m∠X= 90°

m∠Y= 180° -m∠W= 180° - 134°= 46°

4 0
4 years ago
Which of the following is a solution to 2cos2x − cos x − 1 = 0?
Pavel [41]

Answer:

Option A is correct.

Solution for the given equation is, x = 0^{\circ}

Step-by-step explanation:

Given that : 2\cos^2x -\cos x -1 =0

Let \cos x =y

then our equation become;

2y^2-y-1= 0           .....[1]

A quadratic equation is of the form:

ax^2+bx+c =0.....[2] where a, b and c are coefficient and the solution is given by;

x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}

Comparing equation [1] and [2] we get;

a = 2 b = -1 and c =-1

then;

y = \frac{-(-1)\pm \sqrt{(-1)^2-4(2)(-1)}}{2(2)}

Simplify:

y = \frac{ 1 \pm \sqrt{1+8}}{4}

or

y = \frac{ 1 \pm \sqrt{9}}{4}

y = \frac{ 1 \pm 3}{4}

or

y = \frac{1+3}{4} and y = \frac{1 -3}{4}

Simplify:

y = 1 and y = -\frac{1}{2}

Substitute y = cos x we have;

\cos x = 1

⇒x = 0^{\circ}

and

\cos x = -\frac{1}{2}

⇒ x = 120^{\circ} \text{and} x = 240^{\circ}

The solution set:  \{0^{\circ}, 120^{\circ} , 240^{\circ}\}

Therefore, the solution for the given equation  2\cos^2x -\cos x -1 =0 is, 0^{\circ}





8 0
4 years ago
Read 2 more answers
Y+3=4/9(×+7) find the slope​
Lemur [1.5K]

Answer:

4/9

Step-by-step explanation:

,.......................................

3 0
3 years ago
Read 2 more answers
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