I did some of it already I just need help on the last one unless I got the others wrong

Answer:

1.23

Step-by-step explanation:

Answer:

Expected value = $32

Step-by-step explanation:

Given:

Check amount = $0, $20, $30, $35, $75

Find:

Expected value

Computation:

Expected value = [$0 + $20 + $30 + $35 + $75] / 5

Expected value = [$160] / 5

Expected value = $32

Answer:

Prob because you were giving away free points or broke the rules.

Answer:

32/125 I think this is the answer

Step-by-step explanation:

Answer: 32/125

Step-by-step explanation:

Answer:

$1.42

Step-by-step explanation:

0.71 *2 = 1.42

bcz we need 2 pounds

Answer:

Step-by-step explanation:

              Statements                                            Reasons

1). Triangle ABC is isosceles. D is          1). Given

   the midpoint of AC.

2). AD ≅ DC                                            2). Definition of midpoint

3). BA ≅ BC                                             3). Definition of an isosceles

                                                                     triangle.

4). BD exists                                            4). A single line segment can be

                                                                    drawn between any two points.

5). BD ≅ BD                                            5). Reflexive property

6). ΔABD ≅ ΔCBD                                 6). By SSS property of congruence

7). ∠BAC ≅ ∠BCA                                  7). CPCTC

Answer:

sorry just need points

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

8 times would you expect to draw a blue marble.

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.

Given:

Total marbles = 10

Blue marbles=2

Number of times= 40

So, the number of times would you expect to draw a blue marble

=2/10 *40

=80/10

=8

Hence, 8 times would you expect to draw a blue marble.

Learn more about probability here:

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Answer:

How to tell the difference: A proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.

Step-by-step explanation:

The required expression that is equivalent to 18c + 144, is 18(c + 144).

Given that,
To determine the equivalent expression to 18c + 144.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
The given expression,
= 18c +144
Taking 18 commons from the above equation,
= 18(c + 18)

Thus, the required expression that is equivalent to 18c + 144, is 18(c + 144).

Learn more about simplification here:

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Answer:

Start at -150, then add 3(-5), then add 122.2. -150 + 3(-5) + 122.2 = -45.3.

The answer is -45.3 feet depth. while minus sign shows the descend under the water with water surface as starting point.

Step-by-step explanation:

Initial depth of diver under the water =-150feet=−150feet

Diver descends 5 feet per minute for 3.5 minutes =3.5*(-5)=3.5∗(−5)

                                                                                =-17.5=−17.5

Note: minus sign shows that the diver is under the water.

Diver ascends =122.2feet=122.2feet

Now adding all the terms a below as a numerical expression.

Current Depth of Diver after he descends 5 feet for 3.5 minutes and ascend 122.2 feet after  =-150-17.5+122.2=−150−17.5+122.2

                           =45.3feet=45.3feet

By taking the initial depth of diver from which we add or subtract the changes made when he ascends or descends in the water to get the current depth.

PLEASE MARK ME AS BRAINLIEST

Answer:

Step-by-step explanation:

4x - 27 = 2(x + 9)

2x = 27 + 18

x = 45 ÷ 2 = 22.5

QP = 4(22.5) - 27 = 63 units

Answer:

it should be A and if it is not a then b but I think A

Answer:

B. 1 book-––$8 that should be the answer

Answer:

7/n

Step-by-step explanation:

14/2n=7/n

Answer:

It is one half 1

                    2

Step-by-step explanation:

did test on edg 2020

Answer:

c on edge 2021  

Step-by-step explanation:

1/2

Answer:

Step-by-step explanation:

The gcf of 9 and 45 can be obtained like this: The factors of 9 are 9, 3, 1. The factors of 45 are 45, 15, 9, 5, 3, 1. The common factors of 9 and 45 are 9, 3, 1, intersecting the two sets above

Answer:

g(6) = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

g(n) = n + 2

g(6) is n = 2

Step 2: Evaluate

Answer:

-k3 is the answer or somebody help me also

Answer:

4 emails per minute

Step-by-step explanation:

20/5=4

Answer:

17

Step-by-step explanation:

Let's solve your equation step-by-step.

6x+78=180

Step 1: Subtract 78 from both sides.

6x+78−78=180−78

6x=102

Step 2: Divide both sides by 6

6x/6=102/6

x=17

Answer:

x = 17

Step-by-step explanation:

If you subsitute x in "2x" you get 34. If you subsitute x for "4x - 4" you get 64.

After subtracting 180 from 98 you get 82. Add up 34, 64, and 82 then you get 180.

9514 1404 393

Answer:

  ∠6 = ∠4 = 84°

  ∠5 = ∠3 = 96°

Step-by-step explanation:

Angle 4 and the marked angle (84°) are corresponding angles, so are congruent. Angles 4 and 6 are vertical angles, so are congruent.

  ∠6 = ∠4 = 84°

Angle 3 and the marked angle are a linear pair, so angle 3 is the supplement of 84°:

  ∠3 = 180° -84° = 96°

Angle 3 and angle 5 are alternate interior angles, so are congruent.

  ∠5 = ∠3 = 96°

Answer:

The 95% confidence interval for the true population proportion is (0.27, 0.33).

Step-by-step explanation:

The (1 - α)% confidence interval for population proportion of is:

[tex]CI=\hat p \pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

The information given is:

[tex]\hat p=0.30\\n=765\\\text{Confidence level}=95\%[/tex]

The critical value of z for 95% confidence level is, 1.96.

Compute the 95% confidence interval for the true population proportion as follows:

[tex]CI=\hat p \pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

    [tex]=0.30\pm 1.96\times\sqrt{\frac{0.30(1-0.30)}{765}}\\\\=0.30\pm 0.0325\\\\=(0.2675, 0.3325)\\\\\approx (0.27, 0.33)[/tex]

Thus, the 95% confidence interval for the true population proportion is (0.27, 0.33).

Answer:

24

Step-by-step explanation:

(10-1) x 2 + 2 x 3

9 x 2 + 6

18 + 6

24

Answer:

25 and 12

Step-by-step explanation:

1) x+y=37

x-y=13 or x=13+y

Put x=13+y into equation 1:

13+y+y=37

y+y=24

y=12

x=25