im really confused lol

Answer:

I = $ 1,937.50

Step-by-step explanation:

Complete question is;

The reading speed of second grade students in a large city is approximately normal, with a mean of 91 words per minute (wpm) and a standard deviation of 10 wrpm. A teacher instituted a new reading program at school. After 10 weeks in the​ program, it was found that the mean reading speed of a random sample of 19 second grade students was 90.7 wpm. What might you conclude based on this​ result? Select the correct choice below and fill in the answer boxes within your choice. ​(Type integers or decimals rounded to four decimal places as​ needed.)

Answer:

We would conclude that the new program doesn't seem to be more effective than the old program.

Step-by-step explanation:

We are given;

Population mean; μ = 91

Population standard deviation; σ = 10

Sample mean; x¯ = 90.7

Sample size; n = 19

Formula for z-score

z = (x¯ - μ)/(σ/√n)

z = (90.7 - 91)/(10/√19)

z = -0.131

From online p-value from z-score calculator attached, using z = -0.131; significance level = 0.05; one tailed, we have;

P-value = 0.4479

This is more than the significance level of 0.05. Thus, we would conclude that the new program doesn't seem to be more effective than the old program.

Answer:

3.

let basketballs be x

and footballs will be 3 + x

3 + x + x = 27

2x = 27 - 3

2x = 24

x = 12

basketballs were 12 and footballs 15

4.bowl of soup x

hamburger 2x

2x + x = 738

3x = 738

x = 246

bowl of soup 246 calories

hamburger 492 calories

5. lisa x

carmen x - 6

x - 6 + x = 168

2x = 174

x = 87

lisa 87 strokes and carmen 81 strokes

6. first number x

second number x + 1

x + x + 1 = 191

2x = 190

x = 95

first number is 95 and second number is 96

Answer:

A≈165553.09

Step-by-step explanation:

To the nearest cent, there would be $174,529.50 in Samuel's account after 17 years of continuous compounding at an interest rate of 6.7%.

The formula for calculating the amount of money in an account with continuous compounding is:

[tex]A = Pe^{(rt)}[/tex]

where:

A = the amount of money in the account after t years

P = the principal amount invested

r = the annual interest rate (as a decimal)

t = the time in years

e = Euler's number (approximately 2.71828)

Using this formula, we can calculate the amount of money in Samuel's account after 17 years as follows:

[tex]A = 53,000 \times e^{(0.067\times 17)[/tex]

A ≈ $174,529.50

Therefore, to the nearest cent, there would be $174,529.50 in Samuel's account after 17 years of continuous compounding at an interest rate of 6.7%.

To know more about continuous compounding follow

https://brainly.com/question/30751082

#SPJ3

Answer:

Ok:

Step-by-step explanation:

The formula is [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. Here, we can plug in values where x2 = -6, x1 = -4, y2=-4, and y1 = 7. Solving, we get the slope is 11/2 or 5.5.

Answer:

−88p + 52

Step-by-step explanation:

Answer:

$1.83

Step-by-step explanation:

$2.15 (original price of cookies) - 15% (discount) = $1.83 (rounded since the original total was: 1.8275)

Answer: y= -6

Step-by-step explanation:

Answer:

y = -6

Step-by-step explanation:

[tex]y = | - 2| - 8 \\ [/tex]

y = 2 - 8

y = -6

Answer:

The function is strictly increasing on (0, π/2)

Step-by-step explanation:

We are given the function;

y = sin x

Let's find the derivative;

dy/dx = cos x

Now, Cos 0 = 1

Cos (π/4) = 1/√2

Cos (π/2) = 0

From the above, we can see that as x approaches 0 from (π/2), the value of (cos x) approaches 1. This means it's increasing from 0 to 1.

Thus, the function is strictly increasing on the interval (0, π/2)

Answer:

D. (0, pi/2)

Step-by-step explanation:

If you graph y=sin(X) (I used desmos) then you find that the graph is increasing from 0 to pi/2  :)

Answer:

x

12

Step-by-step explanation:

hope it helps

Answer: 33.3_

Step-by-step explanation:

400 divided by 56 equals 17.14_ and 17.4_ multiplied by 14 equals 100 and divided by 3 is equal to 33.3_

Answer: 0.0425

Step-by-step explanation:

PEMDAS

1. 56x14

2. 400/784

3. 0.1275/3

4. 0.0425

Answer:

37 lies between two perfect squares, 36 and 49.

Step-by-step explanation:

Answer:

18 and 19

Step-by-step explanation:

2n= 37-1

n= 36/2 = 18 :)

Answer:

975 teenagers attended the game.

Answer:

-4  1/12

i just put it in a calculator

Answer:

x [tex]\geq[/tex] 11

Step-by-step explanation:

[tex]8\left(x+1\right)-7x[/tex]

[tex]8x+8-7x[/tex]

[tex]x+8[/tex]

Then..

[tex]x+8\ge \:-3[/tex]

Subtract 8 from both sides

[tex]x+8-8\ge \:-3-8[/tex]

Then, you got your awnser.

[tex]x\ge \:-11[/tex]

===================================================

Explanation:

The remainder theorem says that if we divide some polynomial p(x) over (x-k), then p(k) is the remainder.

The expression x+1 is the same as x-(-1). Comparing this to x-k shows k = -1.

So we'll need to evaluate p(-1)

To do so visually, draw a vertical line through -1 on the x axis. Make sure this vertical line crosses the blue curve at some point, which I'll call point A.

From point A, draw a horizontal line to the y axis. You should reach y = 3.

This is all shown in the diagram below.

In other words, the point (-1,3) is on the blue curve, and p(-1) = 3.

So the remainder is 3.

Answer:

3

Step-by-step explanation:

Answer:

48950$

Step-by-step explanation:

Answer:

$48,500

Step-by-step explanation:

63000-1000-500-13000=x

Answer:

the correct order of these from greatest to least is. 228, 35, 5.76

Answer:

have you found the answer I need it to

Answer:

Adjusted bank balance $11,582

Adjusted book balance $11,582

Step-by-step explanation:

Preparation of bank reconciliation statements

DEL GATO CLINIC Bank Reconciliation

June 30

Bank statement balance $10,555

Add: Bank deposit $2,856

Total $13,411

Deduct: Outstanding checks $1,829

Adjusted bank balance $11,582

($13,411-$1,829)

DEL GATO CLINIC Bank Reconciliation

June 30

Book balance $11,589

Add: Error in check $9

($467-$476)

Deduct: Bank charges$16

Adjusted book balance $11,582

($11,589+$9-$16)

Therefore Adjusted bank balance will be $11,582 while Adjusted book balance will be $11,582

Answer:

[tex]-\frac{1}{3}[/tex]

Step-by-step explanation:

[tex]m=\frac{rise}{run}=\frac{-1-0}{12-9}=\frac{-1}{3}=-\frac{1}{3}[/tex]

Hope this helps.

Answer:

A) The second day

B) 9/16 inches

A) Elsa reached farther on the second day because -1/16 > -5/8

B) To calculate this we must first put both fractions above the same denominator. We can then subtract the smaller one from the bigger one:

-1/16 - (-10/16) = 9/16

Elsa reached 9/16 inches farther on the second day then she did on the first.

Hope this helps and have a great day!

Also stay safe! :))))

Answer:

slope is 2 and y intercepts at (0,3)

Answer:

D.

Step-by-step explanation:

If y=3(2)-1, then y=6-1, therefore y=5

Answer:

78x - 6 = 72x

Step-by-step explanation:

Greatest common factor of 36 and 6 is 6.

First pull 6 out of each term:

6(6x^2 +x -1)

Now factor the polynomial :

6(3x-1)(2x+1)

Answer:

Step-by-step explanation:

5[tex]x^{3}[/tex] has only one term and that is 5[tex]x^{3}[/tex]

Hope this helps

plz mark as brainliest!!!!!