Someone please help me with this :/

5.Express the number 0.307 x 10-Bin
scientific notation,
A
3.07 x 10-9
B
3.07 x 10-6
3.07 x 10-1
3.07 x 10-8

In other words, the number 4 goes in the green box.

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Explanation:

2 yellow + 3 pink + 5 blue = 10 total marbles

We have 5 blue out of 10 total, so 5/10 = 1/2 represents the probability of picking a blue marble.

Picking two marbles in a row is represented by the probability (1/2)*(1/2) = 1/4

The fraction 1/2 stays the same for both selections because we put the first marble back.

Answer:

(4x)^2 = x + 15   or

16x^2 = x  + 15  

16x^2 - x - 15 = 0

or x =1    and     x = -0.9375

Make sure next time that you ask a question..

Step-by-step explanation:

This shouldn't really be answered unless we are sure when the answer is there.

4x is the product of a number and 4

(4x)^2 = 16x^2

this will equal x + 15

16x^2 = x + 15

The question is that the answer? I suspect it is.

16x^2 - x - 15 = 0

This might be the answer. It's not clear.

"""""""""""""""""""""""""""""""""""""''''

Believe it or not, this factors without using the quadratic formula

(16x + 15) ( x - 1) = 0

16x + 15 = 0

x = - 15/16 = - 0.9575

x - 1 = 0

x = 1

Answer:

46%

Step-by-step explanation:

x : 100 = 23 : 50

x = (23 * 100)/50 = 46%

Answer:

can't understand question can you edit it or repost it

Step-by-step explanation:

and please mark me thanks

The algebraic expression for the given statement is: 100 - 12y.

An algebraic expression is a mathematical statement used to state a given problem using variables and digits.

Product means multiplication while difference means subtraction.

Product of y and 12 = 12y

Difference of 100 and 12 y would therefore be expressed in algebraic expression as: 100 - 12y.

Learn more about algebraic expression on:

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Answer:

24 inches

Step-by-step explanation:

2 yards to inches :

2 x 12 = 24

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:

72 inches

Step-by-step explanation:

1 yard = 3 feet

1 foot = 12 inches

1 yard = 3(12) inches or 36"

∴ 2 yards = 72 inches

Answer: 1/4

Step-by-step explanation:

Reword the problem. It says what is the probability of landing on 2 or 1. That is 2 possibilities out of 8 so 2/8 = 1/4

Answer:

Great tip

READ THE TEXTBOOK

Answer:

For any integer number n, the inverse additive of n is also an integer K such that:

n + K = 0

solving this for K, we get that:

K = -n

Then the inverse additive of n is -n.

Now that we know this let's complete this.

We know that for any two integers A and B, a minus b is equal to a plus the additive inverse of b.

To check this:

a minus b is written as:

a - b

And a plus the additive inverse of b is:

a + (-b)

because -b is the additive inverse of b.

Remember the rule sign:

(+)*(-) = -

Then we can rewrite:

a + (-b) = a - b

Then the statement is true.

"For any two integers a and b, a minus b is equal to a plus additive inverse of b is equal to a + (-b)"

Answer:

x=3.5

Step-by-step explanation:

25÷2=12.5

12.5-9=3.5

Answer:

7/5 or 3.5

Step-by-step explanation:

2 (x+9) =25

x+9 = 25/2

x = (25/2) - 9

x = 7/2 in decimal = 3.5

Answer:27/ 72 or 3/8

Step-by-step explanation:

Trust me

Answer:

3x+5x=3-1

8x=2

X=8/2

X=4

Answer:

Answer  B: 2

Step-by-step explanation:

You can multiply the numbers of the smaller triangle and determine the answer

Answer:

83 racoons

Step-by-step explanation:

18+67- 2

you would subtract the two they found with tags

Answer:

The red one is an electron, the ring is the nucleus, the blue one is a proton, the yellow one is a neutron.

Answer:

The red one is electron since it is in the outer part of the atom.

The black ring is nucleus since it is where the protons are nuetrons are enclosed in.

The blue one is proton, since the number of electrons is equal to the number of protons.

Therefore, the last one, yellow, is Neutrons.

Hope u understand

Please mark as brainliest

Thank You

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[tex]\sf y = \frac{2}{3} x - 1[/tex]

Looking at the graph you can tell the slope is [tex]\sf{\frac{2}{3}}[/tex] rise, over, run, and the y intercept is -1

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[tex]\large\boxed{\sf{\red{CarryOnLearning}}}[/tex]

Answer: 0.514285714286 ≈

Step-by-step explanation: 18/35 is already in the simplest form. It can be written as 0.514286 in decimal form

The value of the x is 27.

We have given that the diagram of a rhombus

We have to determine the value of the x

The angle is sitting on a right angle because rhombuses have 4 right angles

90 = 4x-18

108 = 4x

x = 27

Therefore the value of the x is 27.

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Answer: It's 14, not 27.

Step-by-step explanation:

Answer:

12 p - 6k

Step-by-step explanation:

Let us assume that _ is meant to be minus sign.

( 4 p - 2k ) ( 3)

use the distributive property

3 × 4p - 3 × 2k

12 p - 6 k

Answer:

D) -2 1/4  <  2 1/4

Step-by-step explanation:

The number line shows points -2 1/4 and 2 1/4, and -2 1/4 is less than 2 1/4, so D is the right answer.

:) ur welcome

Answer:

D

Step-by-step explanation:

quick answer :)

Answer:

y = 4x - 48

Step-by-step explanation:

y = 1/4 x - 12

x = 1/4 y - 12

4x = y - 48

y = 4x - 48

Answer:

[tex]f^{-1}[/tex] (x) = 4x + 48

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = [tex]\frac{1}{4}[/tex] x - 12 ( multiply through bt 4 to clear the fraction )

4y = x - 48 ( add 48 to both sides )

4y + 48 = x

Change t back into terms of x with x = [tex]f^{-1}[/tex] (x)

[tex]f^{-1}[/tex] (x) = 4x + 48

Answer:

From the two graphs, I can see in the picture, I can tell that the left graph represents y=2x because the y-intercept is 0 and the slope is 2 because the line goes up two and over one (2/1) or just 2.

Step-by-step explanation:

Hope this helps

Answer:

2

Step-by-step explanation:

let the number be n , then

7n - 8 = 6 ( add 8 to both sides )

7n = 14 ( divide both sides by 7 )

n = 2

The number is 2

Answer:

Root:(-⅗,0)

vertical intercept:(0,5)

Step-by-step explanation:

I'm sorry may be that's the only answer

Answer:

She had to had like 20 since (-17-3)= -20 right the question asked how much she had before, she had 20 if not 28, since the mother gave her another twenty but as a result, in the beginning, she had around 28 dollars in order to spend 17 on a book and 3 on a cupcake so she still had 8 dollars, and the 20, well the mother handed her 20.

(I hoped I made sense, and that I helped!:)

Answer:

[tex]a_{n}[/tex] = - [tex]\frac{1}{4}[/tex] [tex]a_{n-1}[/tex]

Step-by-step explanation:

The recursive formula lets us find a term in the sequence by multiplying the previous term by the common ratio r

Here r = [tex]\frac{20}{-80}[/tex] = [tex]\frac{-5}{20}[/tex] = - [tex]\frac{1}{4}[/tex]

Then recursive formula is

[tex]a_{n}[/tex] = - [tex]\frac{1}{4}[/tex] [tex]a_{n-1}[/tex]

Answer:

a. 7.2

Step-by-step explanation:

CAH (cos = adj/hyp)

cos53 = b/12; cross multiply

cos53*12 = 7.2

Answer:

The first number (x) = 8

Step-by-step explanation:

Let x = the first number

Let y = the second number

x = 3*y - 4

2x + 3 - 2y = 11        Subtract 3 from both sides

2x - 2y = 11 - 3

2x - 2y = 8              Divide by 2

x - y = 4                   Add y to both sides

x = y + 4                  Now go back to the very first equation. Substitute for x

y + 4 = 3y - 4          Subtract y from both sides

4 = 3y - y - 4

4 = 2y - 4                Add 4 to both sides

4 + 4 = 2y

8 = 2y                     Divide by 2

8/2 = y

y = 4

x = 3y - 4

x = 3*4 - 4

x = 12 - 4

x = 8

Answer:

∠PMN; ∠M

Hope this helps!:)

Answer:

its B

Step-by-step explanation:

3.14 then pi (3.14159) then 22 ÷ 7 (3.1428) then square root of 10 (3.16)

Answer:

B

Step-by-step explanation:

pi=3.141592654

square root of 10=3.16227766

3.14=3.14

22/7=3.142857143

Answer:

B

Step-by-step explanation:

So if B is the midpoint of AC, AB must be 1/2 of AC.

If D is the midpoint of AB, it must be 1/2 of 1/2 of AC, which is 1/4 of AC.

So AC= 4 DB