HURRYYY!!
Which of the following expressions is correctly written in scientific notation?
32.1 x 107
7.31 x 10-2
0.22 x 10-

Answer:

0.75 ;

150

Step-by-step explanation:

Probability of rolling two even numbers :

{1, 2, 3, 4, 5, 6}

P(even) = 3 / 6 = 1/2

From a roll of 2 dice :

P(even) * P(even) = 1/2 * 1/2 = 1/4 = 0.25

P(not even) = 1 - 1/4 = 3/4

X : ____ 6 _______ - 1

P(x) ____ 0.25 ____ 0.75

Expected value :

Σx*p(x) = (6*0.25) + (-1 * 0.75)

= 1.50 - 0.75

= 0.75

If 200 games are played :, n = 200

Expected value * n

0.75 * 200

= 150

Answer:

1/4

Step-by-step explanation:

It's going 1 up and 4 across

Answer:

ok

Step-by-step explanation:

Answer:

y=3

(bc it is the same length as its perpendicular counterpart.

x= 9 (same with Z)

(From pythagorean theorem)

6^2+3^2= (root of) 45

and square root 45

and it is the same as its counterpart (which is z)

Step-by-step explanation:

as I explained on the answer(it doesnt let this part be unwritten)

Answer:

option B 4 DVDs

Step-by-step explanation:

she bought 4 DVDs.

plz mark my answer as brainlist plzzzz. hope this will be helpful to you.

Answer:

242 ft²

Step-by-step explanation:

8X18=144

7X14=98

144+98=242

Answer:

-2(-8x-4y+3/4)= 16x + 8y - [tex]\frac{11}{2}[/tex]

Step-by-step explanation:

Step1:

Multiply the parenteses by -2

= -2 × (-8x) -2 × (-4y) -2 × [tex]\frac{11}{4}[/tex]

Step2:

Calculate and reduce

= 16x + 8y - [tex]\frac{11}{2}[/tex]

Answer:

The right answer is

Step-by-step explanation:

Click To Open!

I'm just try to make yall happy with no answer lol have a good day

Answer:

Alfred has 40 tokens

Clarissa has 30 tokens

Benji has 15 tokens

Step-by-step explanation:

Let's give each person a variable:

A for Alfred

C for Clarissa

B for Benji

Now, we can take what the question is saying and convert them into equations:

Alfred has 10 more tokens than Clarissa can look like this:

A = C + 10

Since Alfred has 10 more coins than Clarissa we can take C and add 10 to find how many tokens Alfred has.

Clarissa has twice as many tokens as Benji looks like this:

C = 2B

Since Clarissa has twice as many tokens as Benji we can multiply B (how many tokens Benji has) by 2.

Lastly, they have 85 tokens all together:

A + B + C = 85

We have these 3 equations:

A = C + 10

C = 2B

A + B + C = 85

Now, we can substitute some variables:

A = (2B) + 10    Since C is equal to 2B we can substitute 2B in for C in the first equation.

We have found what A equals, we can plug that in to the last equation:

(2B) + 10 + B + C = 85

We can also substitute the second equation into the third equation:

(2B) + 10 + B + 2B = 85

Combine like terms:

5B + 10 = 85

Solve

5B = 75

B = 15

This means that Benji has 15 tokens. Now we can find how much the other children have:

C = 2(15) = 30

Clarissa has 30 tokens

A = 30 + 10

A = 40

Alfred has 40 tokens.

Answer:

Alfred has 40 tokens

Clarissa has 30 tokens

Benji has 15 tokens

Checking the Answer

A + B + C = 85

40 + 15 + 30 = 85

85 = 85

I hope this helps!!

- Kay :)

Answer:

5.83095 or √34

Step-by-step explanation:

Find the difference between coordinates:

(x2-x1) = (-1 - -4) = 3

(y2-y1) = (-10 - -5) = -5

Square the results and sum them up:

(3)2 + (-5)2 = 9 + 25 = 34

Now Find the square root and that's your result:

Exact solution: √34 = √34

Approximate solution: 5.831

Answer:

x = 15.6

Step-by-step explanation:

use the pythagorean theorem:

a² + b² = c²

a = 9

b = x

c = 18

(9)² + x² = (18)²

81 + x² = 324                    subtract 81 from both sides

x² = 243                            take the square root of both sides

x = √243

x = 15.6

Answer:

9 × -9 = 81, (-9, -9) is a pair factor of 81.

Step-by-step explanation:

Step-by-step explanation:

3:5

B,D

7:8

E,F

5:9

b,H

4:1

c,g

Answer:

whats the question? ill answer in comments

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

3/12 = 1/4 = 0.25 = 25%

Answer:

11/7, you just turn or flip the fraction.

Step-by-step explanation:

Answer:

i think c

Step-by-step explanation:

Answer: 34.18%  

Step-by-step explanation:

Given: On Saturday, Number of cupcakes sold = [tex]26\dfrac12[/tex] dozens

= [tex]\dfrac{53}{2}[/tex] dozens

[tex]=\dfrac{53}{2}\times12[/tex]    [  1 dozen = 12 items]

[tex]=53\times6\\\\=318[/tex]

On Friday, Number of cupcakes sold = [tex]19\dfrac34[/tex] dozens

= [tex]\dfrac{79}{4}[/tex] dozens

[tex]=\dfrac{79}{4}\times12[/tex]    [  1 dozen = 12 items]

[tex]=79\times3\\\\=237[/tex]

Increase in cupcakes = 318-237=81

Percent increase in cupcakes sales from Friday to Saturday = [tex]\dfrac{81}{237}\times100[/tex]

= 34.18%   (approx)

The approximate percent increase in cupcake sales from Friday to Saturday = 34.18%  

Answer:

60 30 special triangle

answer is b

Answer:

B

Step-by-step explanation:

Answer:

none

Step-by-step explanation:

the two shortest lengths combined have to be longer than the longest length

4+7=11

11<15

the 4 cm side and the 7 cm side wouldn't touch

Answer:

Yes

Step-by-step explanation:

I = 2950

T = 22% x 2950 = 649

CC = 10% x 2950 = 295

NC = 8% x 2950 = 256

R = 1300

I - (T + CC + NC + R) > 0

2950 - ( 649+ 295 + 256 + 1300) > 0

2950 - 2500 >= 0

450 > 0

Answer:

In point form (6,-2) and Equation form: x = 6, y= -2

Step-by-step explanation:

Answer:

18x=7y+1

18x-1=7y

x+33=7y

18x-1=x+33

17x=34

x=2

y=5

Step-by-step explanation:

Answer: 8(u - 10)

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

10-8=2

8*2=16

Answer:

6x-5

Step-by-step explanation:

3(2x-3)+4

6x-9+4

6x-5

Answer is 6x-5

Answer:

0

Step-by-step explanation:

The slope would be 0 because the y value is not increasing.

Answer:

the slope is 0

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Answer: The greater common factor is 20

Step-by-step explanation:

Hope this helps!

Answer:

D

Step-by-step explanation:

Answer:

-7 × 2 + 1 =

-13

Step-by-step explanation: I hope it helps.