In a Normal Distribution. What percentage of the values lie below the Mean?
100%
75%
25%
50%

Answer:

6a   +13

Step-by-step explanation:

(2a + 8) + (4a + 5)

Combine like terms

2a+4a   +8+5

6a   +13

Answer:

6a + 13

Step-by-step explanation:

1. simplify

(2a + 8) + (4a + 5)

2. Reorder the terms

(8 + 2a) + (4a + 5)

3. Remove parentheses

8 + 2a + 4a + 5

4. Combine like terms

8 + 5 = 13

2a + 4a = 6a

So, 6a + 13 is your answer.

Answer:

y=-1/3x+1 Is this what you are asking for

Step-by-step explanation:

Answer:

3/7 -1/4

Step-by-step explanation:

Answer:

3/7 -1/4

Step-by-step explanation:

Answer:

64 cm^2

Step-by-step explanation:

Square: 4*4 = 16

Triangles: 4((4*6)/2))

       = 4(24/2)

       = 4(12)

       = 48

Add the square and triangles together

       = 16 + 48

       = 64

The total will be 64 cm^2

Answer: 64 cm2

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

8/18

Step-by-step explanation:

8 out of 18 attractions at the park are arcades, as stated.

hope this helps!

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

B-X=A

or

B-A=X

or

X=B-A

[tex]X=\left[\begin{array}{ccc}-5&-1&6\\4&1&2\\0&-3&2\end{array}\right] -\left[\begin{array}{ccc}-1&-2&3\\4&8&-6\\0&1&5\end{array}\right] \\=\left[\begin{array}{ccc}-5+1&-1+2&6-3\\4-4&1-8&2+6\\0-0&-3-1&2-5\end{array}\right] \\=\left[\begin{array}{ccc}-4&1&3\\0&-7&8\\0&-4&-3\end{array}\right][/tex]

Answer:

answer is B

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

By counting the distance from point to point, I got 4 up, 6 to the right, aka 4/6

By simplifying it, I get 2/3!

Hope that helps!

Answer:

2/3 the second one

I hope this helps you

Answer:

120

Step-by-step explanation:

This shape is made out of two figures, a rectangle with sides 20 and 3.5 and a parallelogram with height 2.5 and base 20. 2.5*20+20*3.5=50+70=120 cubic centimetres. Hope this helps!

Answer: The answer is 12 units

Step-by-step explanation: just finished the unit

Answer:

so it is C

Step-by-step explanation:

a=4

b=5

c=√(4²+5²)=√(16+25)=√41

4+5+√41≈15

Step-by-step explanation:

x²+4-4x+y²=3

x²+y²-4x+1=0

Answer:

?? Bro write the question better

Step-by-step explanation:

Step-by-step explanation:

Parallel lines have the same slope, so we know that our line will have a slope of 3 because y = 3x + 9 has a slope of 3. Now, we can use the point-slope formula of the line to find the equation.

We have y - y₁ = m (x - x₁)          (m = 3, x₁ = 2, y₁ = -2)

               y- (-2) = 3 (x - 2)

               y + 2 = 3x - 6

               y = 3x - 8

Hope this helps!

Answer:

y = 3x - 8

Step-by-step explanation:

We know that parallel lines have the same gradient. In this situation we want want to work the equation of the line that is parallel to y = 3x + 9 and passes through ( 2 , - 2 ). We know that equations of lines usually go in the format of    y = mx + c

↔ Where 'm' is the gradient / slope

↔ Where 'c' is the y - intercept

Using the information in the first sentence we can set up an equation to find the value of 'c'

⇒ Form the equation

→ y = 3x + c

⇒ Substitute ( 2 , -2 ) into the equation to find the value of c

→ -2 = 6 + c

⇒ Minus 6 from both sides to isolate c

→ -8 = c

⇒ Put the value of c back into y = 3x + c

→ y = 3x - 8

So equation of the line that passes through ( 2, −2 ) and is parallel to the line y = 3x + 9 is y = 3x - 8

Answer:

Length = 30 inches

Width = 24 inches

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Perimeter of a rectangle (P) = 2 width + 2 length

Since:

Length (L) = width (w) + 6

Replacing with the values given:

108 = 2w+2 (w+6)

Solving for w:

108 = 2w+2w+12

108-12 =2w+2w

96 =4w

96/4 =w

w= 24 in

Replacing w in the length formula:

L = w+6

L= 24+6 = 30in

Feel free to ask for more if needed or if you did not understand something.  

Answer:

Tbh idk but i recommend u to get a tutor

Answer:

Replication

Step-by-step explanation:

Replication meaning it's going to be repeated, also it said replication was right on a-pex

Answer:

p < 1500

Step-by-step explanation:

Answer:p is more than or equal to (> with line under) 1500.

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

420/35

12

12*35=420

Answer:

The corresponding base is 12 cm.

Step-by-step explanation:

The area of a parallelogram is calculated with the formula of A=bh, where b is the base and h is the height.

You can apply the problem to the formula:

420=b(35)

To solve, work backwards.

Divide 35 to both sides.

420 divided by 35 is 12

b=12

Hope this helps!

Answer:

Potassium Iodide

Step-by-step explanation:

KI (potassium iodide) is a salt of stable (not radioactive) iodine that can help block radioactive iodine from being absorbed by the thyroid gland, thus protecting this gland from radiation injury. The thyroid gland is the part of the body that is most sensitive to radioactive iodine.

I hope this helps. If you have any more questions, please feel free to post them and someone will be able to help you, whether it's myself or others. Please leave a like, rating, and if possible, Brainliest. Have a great day!

Answer:

P(Snickers n Snickers)  = [tex]\frac{2}{51}[/tex]

Step-by-step explanation:

Given

Bag of candy

5 Reese's Peanut Butter Cups,

4 Snickers

3 Sour Patch

6 Skittles

Required

Calculate P(Snickers n Snickers)

To solve this question, it'll be assumed that you and your friend selected snickers at a consecutive time.

First, we need to calculate the total number of candy

Total = 5 + 4 + 3 + 6

Total = 18 candies

P(Snickers n Snickers) means P(Snickers and Snickers);

i.e. the probability of selecting snicker twice

Number of snickers = 4;

So, the probability of you selecting a snicker first is [tex]\frac{4}{18}[/tex]

This is gotten by dividing number of snickers by total candies.

At this point, there are 4 - 1 snickers left and there are 18 - 1 candies left;

So, the probability of your friend selecting a snicker is [tex]\frac{4 - 1}{18 - 1}[/tex].

So, P(Snickers n Snickers)  = [tex]\frac{4}{18}[/tex] * [tex]\frac{4 - 1}{18 - 1}[/tex]

P(Snickers n Snickers)  = [tex]\frac{4}{18}[/tex] * [tex]\frac{3}{17}[/tex]

P(Snickers n Snickers)  = [tex]\frac{2}{9}[/tex] * [tex]\frac{3}{17}[/tex]

P(Snickers n Snickers)  = [tex]\frac{2}{3}[/tex] * [tex]\frac{1}{17}[/tex]

P(Snickers n Snickers)  = [tex]\frac{2}{51}[/tex]

Hence, the probability of you and your friend choosing snickers is [tex]\frac{2}{51}[/tex]

Answer:

9 M

Step-by-step explanation:

a^2+b^2=c^2

12^2+b^2=15^2

144+b^2=225

-144         -144

b^2=81

b=sqrt of 81

b=9

Answer:

7

Step-by-step explanation:

just subtract 7 from largest number down to smaller numbers to notice the pattern. :)

Answer:

90

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

The reason why it is 90 because it looks like it is going in order so it would be 55 , 90 , 92 , 114

Answer:

7 3/10

pls mark!!!!!!!!!!!!!!

Answer:

C. [tex]c = \frac{-7+-\sqrt{129} }{8}[/tex]

Step-by-step explanation:

Before we start, you can think of the variable "c," as x.

The quadratic formula/equation is:

[tex]x = \frac{-b+-\sqrt{b^2-4ac} }{2a}[/tex]

The setup is:

[tex]ax^2+bx+c=0[/tex]

[tex]4c^2+7c-5=0[/tex]

Plug in the numbers accordingly to the letter associated, like so:

[tex]x = \frac{-7+-\sqrt{7^2-4(4)(-5)} }{2(4)}[/tex]

[tex]x = \frac{-7+-\sqrt{49+80} }{8}[/tex]

[tex]x = \frac{-7+-\sqrt{129} }{8}[/tex]

We see for each row the x coordinates are in arithmetic progression, with a constant difference between successive points.  For example in A x coordinates 3-5=1-3.   So for this to be a line, the same has to be true of the y coordinates; they have to be in arithmetic progression.

A.  5/2, 3/2, 1/2 is just 5,3,1 (constant factors don't matter) so those are in arithmetic progression like the x coordinates so we have a line.

B. 1/2, 1, 3/2.  In AP, a line

C. -1/2, -1/3, -1/4 multiplying by common denominator -12 makes 6, 4, 3.  Those aren't in arithmetic progression.  Not a line.

D. 2,3,4 in AP, a line.

E. 3/4,  1 3/4,  2 3/4  mixed numbers but obvious AP.

Answer: C

Answer:

There is no plug-in for x.

X=0.

(0+4) - (0-1) = [(4 - (-1)] = 5.

Answer:

5

Step-by-step explanation:

(x+4) -x +1

x - x = 0

5

Answer:

A

Step-by-step explanation:

5/4*4/13=20/182=10/91   you take the red marble out so you -1 from the red and the total bag of marbles then you multiply them to gather to get the combined average  then simplify

Answer: 10/91

Step-by-step explanation: