What is the coefficient in the expression; 21 + 3x

Answer:

2 electrons

Step-by-step explanation:

An atom is neutral if it has no charge. That means the positive and negative charge balance each other out.

There are two protons, so that is a charge of +2. To make the charge 0, there needs to be a charge of -2. -2= 2 electrons.

Answer:

Answer is 2

Step-by-step explanation:

Answer:

4.7389579e+47

Step-by-step explanation:

Answer:

4737389578950709629875973094587092747638957698⅞54

The blue figure is translated 5 units left and 2 units down from the red figure.

Answer:

-2/1

Step-by-step explanation:

-2/1 starting point -1

Answer: 10

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

You want to find the hours, not the number of people.

We wouldn't know anything about the "best musician" that one wouldn't be a good answer choice

Answer:

11,390

Step-by-step explanation:

67,000 x 17%= 11,390

Answer:

(2,[tex]\frac{5}{2}[/tex])

Step-by-step explanation:

Midpoint formula: M=([tex]\frac{x_{1} +x_{2} }{2}[/tex],[tex]\frac{y_{1} +y_{2} }{2}[/tex])

M=([tex]\frac{2+2}{2}[/tex],[tex]\frac{1+4}{2}[/tex])

=([tex]\frac{4}{2}[/tex],[tex]\frac{5}{2}[/tex])

=(2,[tex]\frac{5}{2}[/tex])

Answer:

$500 a week

Step-by-step explanation:

Hope I can help.

Kiaya can make a $25 withdrawal for 11 weeks without incurring a fee.

In mathematics, divides left-hand operands into right-hand operands in the division operation.

Kiaya needs to have at least $100 in her checking account to avoid a fee from the bank. She has $376 in her account now, so she can make $376 - $100 = $276 worth of withdrawals before she will be charged a fee.

Each week, she makes a $25 withdrawal.

To determine the number of weeks she can make this withdrawal before being charged a fee, we divide the total amount she can withdraw ($276) by the amount she withdraws each week ($25).

So, Kiaya can make $276 / $25 = 11 withdrawals before she will be charged a fee.

Therefore, she can make a $25 withdrawal for 11 weeks without incurring a fee.

To learn more about the division operation click here :

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Answer:

$600 for a smoker

Step-by-step explanation:

On average, smokers will typically pay 15-20% higher premiums than non-smokers with equivalent demographics and health conditions. If the monthly premium for a non-smoker is $500 per month, it will be upwards of $600 for a smoker. The health insurance companies face a double-edged sword when it comes to insuring smokers.

Answer:

Your answer should be

(1+2*3)*4=28

have a great day!

Insert parentheses to make the number sentence true will be [1 + (2 × 3)] × 4 = 28.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The equation is given below.

1 + 2 × 3 × 4 = 28

Insert parentheses to make the number sentence true will be

[1 + (2 × 3)] × 4 = 28

[1 + 6] × 4 = 28

7 × 4 = 28

28 = 28

Insert parentheses to make the number sentence true will be [1 + (2 × 3)] × 4 = 28.

More about the Algebra link is given below.

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Answer:

29 x 84 = 2436

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

Answer:

i believe it is 0.2143

Step-by-step explanation:

Answer:

0.21428571428

Step-by-step explanation:

I hope this help.

Answer: 9 sq. ft

The area of a square is:  A = a²

A = 3²

A = 9

Plz mark brainliest:)

Answer:

24 23/100

Step-by-step explanation:

I think this is the answer.

9514 1404 393

Answer:

  24 23/100

Step-by-step explanation:

"Twenty-three hundredths," or 23/100, is a fraction that cannot be reduced. The mixed number version is ...

  24 23/100

_____

Additional comment

You start with a denominator that corresponds to the place value of the least-significant digit. Here, that's hundredths, so the fraction you start with is some number of hundredths. Then you reduce the fraction if possible, by canceling all factors of 2 or 5 that you can.

Had it been 23.24, you would start with 23 24/100 and cancel a factor of 4 from numerator and denominator: 23 6/25.

Answer:

I think your answer would be A. He determined that the difference of 6,10, and 14 are increasing by 4 each time. He concludes that the function has a constant rate of change. I hope this helps.

Answer:

87.96m of fencing

Step-by-step explanation:

Answer:

Well this point isnt on the line

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Answer:

yup its correct

Step-by-step explanation:

Answer:

LIVE TESTS NOT ALLOWED TO BE ANSWERED

Step-by-step explanation:

STOP THIS IS REPORTABLE

Answer:  y = 23        x = 28

Step-by-step explanation:

First find the value of y.

The angle (5y -4)  and 3y forms a straight line which means that if you add them together they will equal 180 degrees.  Add them and set them equation to 180 to solve for y.

5y-4 + 3y = 180  

8y -4 = 180

    +4    +4

  8y = 184

 y= 23  

Since y is equal to 23, then input y into the expression  (5y-4) to find the main angle value and then add it with the angle (2x+13) to equal to 180 degrees because they also form a straight angle.

5(23) - 4

115 - 4 = 111

111 + (2x + 13) = 180  

124 + 2x = 180  

-124           -124

 2x = 56

x = 28  

x is equal to 28 degrees.  

Check.

111 + 2(28) + 13 = 180

 111 + 56 + 13 = 180

     180 = 180

Answer:

9 dollars and 40 cents

Step-by-step explanation:

Answer:

It is 9 dollars and 40 cents :)

Answer:

Step-by-step explanation:

this week sold = $2,760

last week sold = $2,400

the difference from this week to last week = 2700-2400 = 360

that means it increased : 360 / 2400 = 0.15 (100%) = 15%

therefore, the increase of sale is 15%

Answer:

19x+8

Step-by-step explanation:

First distribute 2 into the parenthesis which will equal 12x+8+7x

Than add like terms 12x+7x =  19x

Than youre left with 19x+8 and that is the answer :}

Answer:

19x+8

Step-by-step explanation:

You multiply everything in the parenthesis by 2 and then get rid of the parenthesis so then the equation will be 12x+8+7x. Then you add 12x and 7x together because you can't add together a normal number and a variable. Then the equation will be 19x+8. This is the final equation.

Height of water in a pool that decreases every week during summer = 4 inches

The change of the height of water in six weeks :-

[tex] = 6 \times 4[/tex]

[tex]\color{olive} =\color{hotpink} 24\color{olive} \: \: inches[/tex]

Therefore , the height of the water in the pool would have decreased by 24 inches in six weeks .