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Answer:

The answer is "[tex]\bold{(7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} }\\\\[/tex]"

Step-by-step explanation:

Given values:

[tex]\bar{x_1}=7.1\\\\\bar{x_2}=8.3\\\\s_1=1.7\\\\s_2=1.9\\\\n_1=50\\\\n_2=39[/tex]

Using formula:

[tex]\to (\bar{x_1} -\bar{x_2}) \pm t \sqrt{\frac{(s_1)^2}{n_1}+\frac{(s_1)^2}{n_2}} \\\\[/tex]

Put the values in the above formula:

[tex]\to (7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} \\\\[/tex]

Answer:

She has 14 feet left

Step-by-step explanation:

1 yard = 3 feet of fabric

8 yards x 3 feet/yard = 24 feet

24 - 10 = 14 feet

Answer:

Surface area of rectangular prism = 250 cm²

Step-by-step explanation:

The rectangular prism is Prism B

Surface area of rectangular prism = 2lw + 2hw + 2lh

Where,

h = 10 cm

w = 5 cm

l = 5 cm

Plug in the values

Surface area of the rectangular prism = 2(5)(5) + 2(10)(5) + 2(5)(10)

= 50 + 100 + 100

= 250 cm²

Answer:

2/5

Step-by-step explanation:

IXl answer

The experimental probability that the next drink sold will be a mocha is 2/5.

Number of mochas =4

Total drinks =10

Probability is the quantification of possibilities.

P(event) = Favorable outcomes/ Total outcomes

P(mocha) = 4/10

P(mocha) =2/5 =0.4 or 40%

Thus, the experimental probability that the next drink sold will be a mocha is 2/5.

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Answer:

area is the numbers around the shape and perimeter is inside

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

FV= 639.483 arboles

Step-by-step explanation:

Dada la siguiente información:

Cantidad de árboles talados (A)= 85.000

Proporción de crecimiento (g)= 9% mensual

Cantidad de meses (n)= 6

Para calcular el total de árboles talados en 6 meses, tenemos que usar la siguiente formula:

FV= {A*[(1+i)^n - 1]} / i

A= cantidad de árboles talados

i= proporcion de crecimiento

n= cantidad de  meses

FV= {85.000*[(1.09^6) - 1]} / 0.09

FV= 639.483 arboles

Ahora, la cantidad de árboles que se talaran en el sexto mes:

FV= PV*(1+i)^n

FV= 85,000*(1.09^6)

FV= 142.553

Answer:

4/3

Step-by-step explanation:

Answer:

It depends were you are looking from but there is shows D. Oval so ig thats

the answer

Answer:

2:5 i THINK

Step-by-step explanation:

Answer:

I think it might be this one(-2,0)

Answer: I think its A?

Step-by-step explanation:

Answer:

they can buy 2

Step-by-step explanation:

13 x 2 = 26

Answer:

6.5

Step-by-step explanation:

13 divided by 2 = 6.5

Answer:

5

Step-by-step explanation:

9x+5=50

9x=45

x=5

Brianna can buy up to 5 books without spending more than her gift certificate amount.

Two or more expressions with an Equal sign is called as Equation.

If each book costs $9 and Brianna has a $50 gift certificate, we can start by dividing the total amount she can spend by the cost of each book.

$50 gift certificate / $9 per book = 5.55 books

Since Brianna cannot buy a fractional part of a book, she can only purchase a whole number of books.

Therefore, the maximum number of books she can buy without spending more than her gift certificate amount is 5 books.

Additionally, there is a $5 shipping charge for the entire order, so Brianna should make sure to factor this into her budget.

If Brianna buys 5 books at $9 each, the total cost of the books will be $45. Adding the $5 shipping charge brings the total to $50, which is the exact amount of her gift certificate.

Therefore, Brianna can buy up to 5 books without spending more than her gift certificate amount.

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Answer:

Para conectarte al

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Answer:

43

Step-by-step explanation:

The answer should be 43 because if you divide 172 by 4 it gives you 43 so that gives you the answer 172 ÷ 4 = 43.

Answer:

Step-by-step explanation:

Request of activities so increase then division, at that point deduction and expansion.  

9*8 = 72  

72/2 = 36  

72-3 = 69  

69+36 = 105

Another way of saying it is:

Utilize the request for tasks to improve on mathematical articulations. The request is brackets, types and roots, augmentation and division, expansion and deduction. Duplication and division are "something similar" so you would utilize the first that happens from left to right.  

Bit by bit clarification:  

7^2 - 3 + 9 x 8 ÷ 2  

49 - 3 + 9 x 8 ÷ 2  

49 - 3 + 72 ÷ 2  

49 - 3 + 36  

49 - 39  

W=10  

Brainliest?

Answer:

y = -1/4x - 5/2

Step-by-step explanation:

-2- -4 /-1-7 = 2/-8 = -1/4

y+2 = -1/4(x+2)

y+2 = -1/4x - 1/2

y = -1/4x -5/2

Answer:

0.0195 = 1.95% probability that on any given day only John gets homework

Step-by-step explanation:

What is the probability that on any given day only John gets homework?

John has a 65% probability of getting homework.

Paul has a 100 - 80 = 20% probability of not getting homework.

Sonia has a 100 - 85 = 15% probability of not getting homework.

Since these events are independent, the probability is the multiplication.

0.65*0.2*0.15 = 0.0195

0.0195 = 1.95% probability that on any given day only John gets homework

Answer:

question where it at ㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤㅤ ㅤㅤ ㅤ ㅤ ㅤ ㅤ

Answer:

5y-y= 5? I don’t know  I’m not totally sure.

Step-by-step explanation:

a. The graph represents a proportional relationship.

b. The graph does not represent a proportional relationship.

c. The graph does not represent a proportional relationship.

d. The graph represents a proportional relationship.

A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable exists.

The equation that defines the proportional relationship is a linear function with slope k and intercept zero presented as follows:

y = kx.

Hence graphs a and d represent proportional relationship, as they have intercepts at the origin.

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Answer:

3/5

Step-by-step explanation: its on the page the yellow text you add the top numbers but the bottem number stays the same

Answer:

Step-by-step explanation:

The length of AC should be between 5 inches and 25 inches

Jose in this problem draws a triangle, ABC.

We know the length of two sides of the triangle:

AB = 10 inches

BC = 15 inches

The length of the third side in a generic triangle can be calculated using the cosine theorem:  

where

a, b, c are the three sides

is the angle opposite to side  

Looking at the formula, we observe that:

- The maximum value for  is obtained for , so that . In this case, the length of the missing side  (AC, in this case) is

- The minimum value for  is obtained for , for which , so in this case the length of AC is

So, the length of AC must be between 5 and 25 inches.

-Random Brainly user

Answer:

10 inches and yes

Step-by-step explanation:

if you start with A then draw a line to B which is 10 inches, then you draw to C 15 inches. to finish the triangle would be A to C which would be the same thenth as A to B. your only choice to finish the triangle is A to C. left and right side of the triangle would be the same. bottom of the triangle is 15, B to C

Answer:

[tex]y=1.225[/tex]

Step-by-step explanation:

[tex]24y+0.2=29.6[/tex]

Subtract 0.2 from both sides:

[tex]24y+0.2-0.2=29.6-0.2\\24y=29.4[/tex]

Divide both sides by 24:

[tex]\frac{24y}{24} =\frac{29.4}{24} \\y = 1.225[/tex]

y = 1.225 is your final answer.

Answer:

46

Step-by-step explanation:

Given :

Lowest scoring 20% ; this corresponds to score below (1 - 0.2) = 0.8

Mean, m = 60

Standard deviation, s = 17

Zscore = (x - mean) / standard deviation

Therefore, the Zscore for the bottom 20% equals ; P(x > Z) = 0.8

Using a Z probability calculator ;

The Zscore = -0.842

Therefore to Obtian the score, x

Zscore = (x - mean) / standard deviation

-0.842 = (x - 60) / 17

-0.842 * 17 = (x - 60)

-14.314 = x - 60

-14.314 + 60 = x

x = 45.686

To secure a second interview, candidate must score, 46 (nearest whole number).

The marks (to the nearest whole number) must a candidate achieve in order to secure a second interview is 46 and this can be determined by using the z-score formula.

Given :

Let 'x' be the mark must a candidate achieve in order to secure a second interview.

So, through the z-score formula, the value of 'x' can be determined.

[tex]\rm z_{score} = \dfrac{x-mean}{Standard\; Deviation}[/tex]

[tex]\rm -0.842 = \dfrac{x-60}{17}[/tex]

[tex]17\times -0.842 = x - 60[/tex]

x = 60 - 14.314

x = 45.686

So, the marks (to the nearest whole number) must a candidate achieve in order to secure a second interview is 46.

For more information, refer to the link given below:

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