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3 years ago

Helpz

Mathematics

2 answers:

kondor19780726 [428]3 years ago

8 0

Answer:

Step-by-step explanation:

company does well and other investors want to buy the stock. If a stock's price rises from $10 to. $12, the $2 ... If Carlos has money in a savings account or buys a U.S. savings bond, he'll earn 3 to 5% on his savings.

Airida [17]3 years ago

8 0

Answer:

$62,600

Step-by-step explanation:

$53,000 + 0.8% of 1.2 mill is the answer
0.8% = 0.8/100 = 0.008
0.008 x 1,200,000 = 9,600
53,000 + 9,600 = 62,600.

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A hockey team is convinced that the coin used to determine the order of play is weighted. The team captain steals this special c

fredd [130]

Answer:

Since x= 12 (0.006461) does not fall in the critical region so we accept our null hypothesis and conclude that the coin is fair.

Step-by-step explanation:

Let p be the probability of heads in a single toss of the coin. Then our null hypothesis that the coin is fair will be formulated as

H0 :p 0.5 against Ha: p ≠ 0.5

The significance level is approximately 0.05

The test statistic to be used is number of heads x.

Critical Region: First we compute the probabilities associated with X the number of heads using the binomial distribution

Heads (x) Probability (X=x) Cumulative Decumulative

0 1/16384 (1) 0.000061 0.000061

1 1/16384 (14) 0.00085 0.000911

2 1/16384 (91) 0.00555 0.006461

3 1/16384(364) 0.02222

4 1/16384(1001) 0.0611

5 1/16384(2002) 0.122188

6 1/16384(3003) 0.1833

7 1/16384(3432) 0.2095

8 1/16384(3003) 0.1833

9 1/16384(2002) 0.122188

10 1/16384(1001) 0.0611

11 1/16384(364) 0.02222

12 1/16384(91) 0.00555 0.006461

13 1/16384(14) 0.00085 0.000911

14 1/16384(1) 0.000061 0.000061

We use the cumulative and decumulative column as the critical region is composed of two portions of area ( probability) one in each tail of the distribution. If alpha = 0.05 then alpha by 2 - 0.025 ( area in each tail).

We observe that P (X≤2) = 0.006461 > 0.025

and

P ( X≥12 ) = 0.006461 > 0.025

Therefore true significance level is

∝= P (X≤0)+P ( X≥14 ) = 0.000061+0.000061= 0.000122

Hence critical region is (X≤0) and ( X≥14)

Computation x= 12

Since x= 12 (0.006461) does not fall in the critical region so we accept our null hypothesis and conclude that the coin is fair.

3 0

3 years ago

Write and expression to represent the submarines elevation after its final dive

Mama L [17]

Answer is in file explain: sorry if I’m wrong

5 0

3 years ago

Rectangles P, Q, R, and S are scaled copies of one another. For each pair, decide if the scale factor from one to the other is g

Fittoniya [83]

I attached a diagram that will aid the understanding of the question.

Firstly, I would love to review what a scale factor is before going into the question.

If you have two shapes that are similar, that is they have corresponding angles, then the scale factor of one to the other is simply the ratio of any two corresponding lengths in the two similar geometric figures.

Looking at these figures in the question, we see that R is an enlargement of the other rectangles while Q is an enlargement of P and S. With this information we can answer the questions:

1. From P to Q, the scale factor greater than one because Q is bigger than P.

2. From P to R, the scale factor is greater than one for the same reason.

3. From Q to S, the scale factor is less than one because S is smaller than Q.

4. From Q to R, the scale factor is greater than one because R is bigger than Q.

5. From S to P, the scale factor is equal to one because they are equal.

6. From R to P, the scale factor is less than one because p is smaller than R.

7. From P to S, the scale factor is equal to one because they are equal.

7 0

3 years ago

50 PTS ANSWER ASAP

Nat2105 [25]

Answer:

y-2 = 4/3(x+3) (point slope form)

y = 4/3x+6 slope intercept form

Step-by-step explanation:

We need to find the slope of the line 4x -3y =12

Solve for y

Subtract 4x from each side

4x-4x -3y = -4x +12

-3y = -4x+12

Divide by -3

-3y/-3 =-4x/-3 +12/-3

y = 4/3 x -4

The slope is 4/3

We want a line that is parallel, so it will have the same slope

We have the slope and a point, so we can use point slope form

y-y1 = m(x-x1)

y-2 = 4/3(x--3)

y-2 = 4/3(x+3)

Distribute

y-2 = 4/3x +4

Add 2 to each side

y-2+2 = 4/3x +4

y = 4/3x +4+2

y = 4/3x+6

8 0

4 years ago

Read 2 more answers

4|2x - 31|=36 solve for x

timofeeve [1]

Answer:

Step-by-step explanation:

4(2x - 31)=36

4×2x-4×31=36

8x-124=36

8x=36+124

8x=160

x=160/8

x=20

8 0

3 years ago