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VLD [36.1K]
3 years ago
13

You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers. What is the exper

imental probability that you will guess exactly three out of five questions correctly? Type your answer below using complete sentences.
Help! i dont understand this.
Mathematics
1 answer:
lana66690 [7]3 years ago
4 0
2 out of 5 chance that you will attests get 3
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An angle is created from points C, A, and B with vertex A. An arc is drawn from point A and intersects rays AC and AB. The inter
Minchanka [31]

Answer:

Bisecting an angle ⇒ answer a

Step-by-step explanation:

* <em>Lets revise the steps of bisecting an angle</em>

- <em><u>How to construct a bisector of angle XYZ</u></em>

1. Open the compass to any width, and place its pin at the angle’s

   vertex Y and draw an arc cuts the two rays of the angle YX and YZ

   at two points M and N respectively

2. Open the compass to another width and place its pin at M and draw

    an arc between the two rays YX and YZ

3. Without changing the width of the compass place its pin at N and

   draw another arc intersects the arc from M at point Q

4. Join YQ which is the bisector of angle XYZ

* <em>Now lets compare these steps by the steps of the question</em>

∵ The vertex of the angle ABC is A represented by Y

∵ The rays of the angle AC and AB represented by YX and YZ

∵ Points D , E represented by points M , N

∴ The construction is " Bisecting an angle "

7 0
3 years ago
PLEASE HELP ME WITH THIS​
Mice21 [21]
Wha do u need help with
8 0
3 years ago
Solve the system using substitution.<br> 2x = 5y + 14<br> x = 5y
andrew-mc [135]

Answer:

<h2>y = 2.8</h2><h2>x = 14</h2>

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.

7 0
3 years ago
What is the value of x in the triangle?
Maksim231197 [3]

Answer:

5.619

Step-by-step explanation:

SOH 22 =x/15

cross multiply

X =SOH 22 *15

X =0.3746*15

X =5.619

6 0
3 years ago
1/x^-2 x=7 yeet yeet
Yanka [14]

Answer:

49

Step-by-step explanation:

x = 7

1 / x^-2

= x^2

= 7^2

= 49

8 0
2 years ago
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