Libby earns a mean of 92.9 points with a standard deviation of 5.5 points in her math classes and a mean of 90.3 with a standard deviation of 6.1 points in her history classes. Both distributions are skewed left. If a sample of 30 of her math scores and 31 of her history scores is randomly selected, what is the probability that her mean math score will be more than her mean history score?

0.0401
0.0686
0.9314
0.9599

Answer:

Step-by-step explanation:

418 to the nearest ten is 420

384 to the nearest ten is 380

1273 to the nearest ten is 1270

1270-(420+380)=1270-800=470 miles

Answer:

When it comes to positive and negative numbers, you can think of the inverse as being the "opposite." For example, for 5, the inverse is -5.

Answer:

5

Step-by-step explanation:

Answer:

|5| = 5

Step-by-step explanation:

Absolute value can be seen as the distance between a number and zero. It is always a positive number. 5 is 5 units away from 0. |5| = 5, and |-5| would also be 5. It's important not to get absolute value confused with opposites.

Answer:

(0,4) is the y intercept for function A

(0,3) is the y intercept for function B

so function A has the greatest y intercept

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

M

Step-by-step explanation:

because it is equal on either side if you cut a line down the middle of the letter

Answer:

the answer is x < - 6

Step-by-step explanation:

see the pictures for the step by step explanation

i hope this helps

if you need more help understanding algebraic inequality's

if this helps please give brainliest

and 5 stars

Also share this answer so it can help others

thanks,

skymillie28

Expert

Answer:

Surface area: 500

Volume: 5500

Step-by-step explanation:

Scale factor: 2:5

This means that the dimensions of the larger figure are 5/2 of those in the smaller figure.

Surface area:

The surface area is found multiplying the square of the change(5/2) by the original surface area(80). So

[tex]S = (\frac{5}{2})^2 \times 80 = \frac{25}{4} \times 80 = 25 \times 20 = 500[/tex]

Volume:

The volume is found multiplying the cube of the change(5/2) by the original volume(352). So

[tex]S = (\frac{5}{2})^3 \times 352= \frac{125}{8} \times 352 = 125 \times 44 = 5500[/tex]

Answer: Either it is not hard to find four leaf clovers, or i would be lucky to find one.

Step-by-step explanation:

An assumption is any assertion or concept that is taken to be true and on which an argument or argument may be based.

From the argument is centered on the probability of finding a four leaf clover.

It is an already established fact that four leaf clovers are rear to come by so it would require a lot of luck to actually find one.

Answer:

1. $1430

2. $930

3. $1070

4. 105

   96

  -20

  -76

  -560

Answer:

p = 11

Step-by-step explanation:

In a parallelogram BA and CD are parallel so you would set the problem up 7p = p +66

- p both sides

6p = 66

divide 6 both sides

p = 11

Answer:

[tex]n = 11[/tex]

Step-by-step explanation:

Given

[tex]^nP_2 = 110[/tex]

Required

Solve for n

[tex]^nP_2 = 110[/tex]

Start by applying permutation formula:

[tex]\frac{n!}{(n-2)!} = 110[/tex]

Expand the numerator

[tex]\frac{n*(n-1) * (n-2)!}{(n-2)!} = 110[/tex]

(n-2)! cancels out

[tex]n*(n-1) = 110[/tex]

Expand

[tex]n^2 - n = 110[/tex]

Subtract 110 from both sides

[tex]n^2 - n -110= 110-110[/tex]

[tex]n^2 - n -110= 0[/tex]

Expand:

[tex]n^2 - 11n +10n-110= 0[/tex]

Factorize:

[tex]n(n-11) +10(n-11)= 0[/tex]

[tex](n+10)(n-11) = 0[/tex]

This implies that:

[tex]n + 10 = 0\ or\ n - 11 = 0[/tex]

[tex]n = -10\ or\ n = 11[/tex]

But n can't be negative.

So:

[tex]n = 11[/tex]

Answer:

(2,9)

That's where the maximum is at making it the vertex

I'd appreciate it if you gave me branliest

Answer: isosceles scalene scalene and equalateral

Step-by-step explanation:

Answer:

57 degrees

Step-by-step explanation:

Same side interior angles are supplementary which means they both equal 180 degrees.

Answer:

X is equal to 12°

Step-by-step explanation:

From the picture we can make the following equation...

90° = 3x + (x + 42°)

90° = 3x + x + 42°

4x = 90° - 42°

4x = 48°

x = 12°

Answer:The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(

−

∞

,

∞

)

Set-Builder Notation:

{

x

|

x

∈

R

}

Step-by-step explanation:

Answer:

4x + 3y = 19 this is it  so i think A

Step-by-step explanation:

Answer:

To find output try adding 1.5 to each input number, hope this helped.

Step-by-step explanation:

Answer

36 is a perfect square

50 is not a perfect square

20 is not a perfect square

2 is not a perfect square

So, the answer is 36

Hope this helps! <3

104°

This is because there are two lines, each line is 180°, so both is equal to 360°. Angle y and the one with 76° are the same, so that should mean angle z and x are the same. So you subtract 152° from 360° (76° doubled) and you get 208° leftover. Now to get the last two angles, you divide 208° by 2, so each angle should be 104°. :))

Answer:

14x18;16123

Step-by-step explanation:

Answer:

3/8

Step-by-step explanation:

Well 1/8 is 1/2 of 1/4, so if you were to add 1/8 to 1/4 you would get 3/8. The different would be 2/8. Those are exact answers not estimates.

Step-by-step explanation:

(1/3)1/4

1/12

i guess this is it lol

Answer:

2.5, -1.25, 0.625

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Answer:I believe y would also be 0

Step-by-step explanation: so sorry if I’m wrong but good luck! :)

Answer:

the person above me is correct!

Step-by-step explanation:

0 2021 Edg

Answer:

36

Step-by-step explanation

Subtract 50% from $96.00

96.00 - 48.00 = 48.00

Find out what is 75% of 48

48.00 - 75% = 36