The diameter of a circle is 14 inches. What is the circle's area

use 3.14 for PI

Answer:

Three arithmetic means between -16 and 4 are : 20 , 10 and  [tex]\frac{20}{3}[/tex]

Step-by-step explanation:

we have to find out three arithmetic means between -16 and 4

-16 , ____  , ____ , ____ 4

so , lets take the mean like this ,

-16 ,  -16+d , -16+2d ,-16+3d , 4

First mean -: -16 +d = 4

                   d= 4+16

                   d = 20

second mean -: -16 +2d = 4

                            2d=  4+16 = 20

                             d= [tex]\frac{20}{2}[/tex]

                             d= 10

third mean -: -16+3d = 4

                         3d = 20

                          d=[tex]\frac{20}{3}[/tex]

Therefore , all the three arithmetic means between -16 ad 4 are 10 , 20 and  [tex]\frac{20}{3}[/tex] .

Answer:

1/x^7*x^4 or 1/x*x*x*x*x*x*x*x*x*x*x

Step-by-step explanation:

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The world needs u

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Answer:

x=0

Step-by-step explanation:

2(4x+3)-12=3x-6

distribute

8x+6-12=3x-6

8x-6=3x-6

8x-3x=-6+6

5x=0

x=0

Answer:

13

Step-by-step explanation:

2 hours = 4 inches

2/2 equals 1 hour

4/2 equals 2 inches

2 inches of snow per hour

6.5*2 is 13

you should expect 13 inches of snow in 6.5 hours

Answer:

6 weeks

Step-by-step explanation:

Let x represent the weeks

[tex]25=10+ (10x-7.5x = 2.5)[/tex]

[tex]25-10=2.5x = 15[/tex]

[tex]\frac{15}{2.5}=x \\(150/25)\\x=6[/tex]

Carol and Cathy will have same saved amount after 6 weeks.

What do you mean by algebraic expressions ?

Algebraic expression is an equation which consists of variables and the arithmetic operations such as division , multiplication , etc.

It is given that Carol started with $25 and saved per week an amount of $7.50 whereas Cathy started with $10 and saved per week amount of $10.

Let's assume that after x no. of weeks they will have same saved amount.

So , we can write an algebraic expression which is :

25 + (7.5 × x) = 10 + (10 × x)

Now , reordering the like terms we get :

10x - 7.5 x = 25 - 10

Simplifying this we get :

2.5 x = 15

or

x = 15 ÷2.5

or

x = 6 weeks

Therefore , Carol and Cathy will have same saved amount after 6 weeks.

Learn more about algebraic expressions here :

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Answer:

Step-by-step explanation:

Distance formula:

d = rt

where d = distance, r = average speed and t = time travelled.

They told us that an object travels 30 meters in 20 seconds.

So we can say d = 30 and t = 20

If you put these values back into the distance formula you get:

d = rt

30 = r times 20

30 = 20 r

So now we want to find what "r" (average speed) is.

Divide both sides by 20.

20 r = 30

r =  [tex]\frac{30}{20}[/tex] = 1.5 meters per second.

Answer:

2 points

Step-by-step explanation

11x2=22 if Robert got 11 questions wrong and each question was worth 2 points that would equal 22 points deducted from his test

Answer:

c

Step-by-step explanation:

Answer:

letter C

Step-by-step explanation:

hope its help

Answer:

Step-by-step explanation:

?

Answer:

You have 12 quarters and 30 dimes.

Step-by-step explanation:

If you have an equation that says 10d+25q= 600 cents (d meaning dime and q meaning quarter) and have another equation that says d+w=42, then you could use those two equations to solve the problem.

Hope this helps a little bit. It is a little hard to explain but let me know if you need some more help.

Answer:

4

Step-by-step explanation:

Because It's a pattern that switches itself over and over.

Answer:   answer is 19 !!

Step-by-step explanation:

Answer:

32 black grapes

Step-by-step explanation:

the 3 part of the ratio represents 24 green grapes , then

24 ÷ 3 = 8 ← value of 1 part of the ratio, then

black grapes = 4 × 8 = 32

Answer:

Sin theta= a/c

= 5/7.8

= 0.64

= 1

Step-by-step explanation:

Lets find the hypotenuse first by applying Pythagorean theorem.

a^2+b^2=c^2

(6)^2+(5)^2=c^2

36+25=c^2

61=c^2 (FIND SQUARE ROOT)

7.8=c

Sin theta= a/c

= 5/7.8

= 0.64

= 1

Cos theta= b/c

= 6/7.8

Tan theta= a/b

= 5/6

Answer:

Step-by-step explanation:

Two possible equations, depending on how you read the question.

1. Is there a shipping and handling per disc?

If so:

[tex]C = 13n + 1.95n[/tex]

2. Shipping and handling is only charged once?

If so:

[tex]C=13n+1.95[/tex]

[tex] ({ \frac{7}{3} })^{x} = {A}^{2x} \\ [/tex]

[tex] ({ \frac{7}{3} })^{x} = {A}^{ {2}^{x} } \\ [/tex]

[tex] \frac{7}{3} = {A}^{2} \\ [/tex]

[tex]A = ± \sqrt{ \: \frac{7}{3} \: } \\ [/tex]

_________________________________

I think this is the correct answer.

And we're done.

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Answer:

(7/3)^1/2

Step-by-step explanation:

I got it right on khan academy.

Answer:

Step-by-step explanation:

3x^2 + 8x - 16 - SOMETHING = x^2 - 4

Re-arranging left and right:

SOMETHING = 3x^2 + 8x - 16 - x^2 + 4

= (3x^2 - x^2) + 8x - 16 + 4

= 2x^2 + 8x - 12

Answer:

Original expression:  [tex]3x^2+8x-16[/tex]

Let [tex]a[/tex] be the quantity Amir subtracted from the original expression.

Expression after subtraction: [tex]x^2-4[/tex]

[tex]\implies (3x^2+8x-16)-a=x^2-4[/tex]

Solve for [tex]a[/tex]:

[tex]\implies 3x^2+8x-16-a=x^2-4[/tex]

Add 4 to both sides:

[tex]\implies 3x^2+8x-12-a=x^2[/tex]

Subtract [tex]x^2[/tex] from both sides:

[tex]\implies 2x^2+8x-12-a=0[/tex]

Add [tex]a[/tex] to both sides:

[tex]\implies 2x^2+8x-12=a[/tex]

Therefore, Amir subtracted [tex]2x^2+8x-12[/tex] from the original expression.

Answer:

y = -6/5x + 4

Step-by-step explanation:

1.  are made of electrons, protons, and neutrons

2.  are the smallest unit of matter

Answer:

Atoms normally have no charge

Atoms are made of electrons, protons, and neutrons

Atoms are the smallest unit of matter

Step-by-step explanation:

I got this correct when I submitted it :)

Answer:

x=2.5

Step-by-step explanation:

5x<12          1. /5 on both sides

x= 2.5    

Answer:

x<2.4

Step-by-step explanation:

5x < 12

x < 12/5

x < 2.4

On the number line, draw an arrow going towards left from 2.4, with an open circle at 2.4

Answer:

its d

Step-by-step explanation:

Step-by-step explanation:

Work and answer shown above

The Domain is -4 ≤ x ≤ 2

Range = 2 ≤ y ≤ 6

We have given a graph of a function. We have to find the domain and the range of the function

The domain refers to the set of all valid input values for a function. It represents the values for which the function is defined or meaningful. In other words, it is the set of x-values that can be plugged into the function to obtain a corresponding y-value.

The range, on the other hand, refers to the set of all possible output values or y-values that result from evaluating the function with the input values from the domain. It represents the set of all values that the function can attain.

As we can see from the graph

value of x is greater than and equal -4 and less than and equals 2

Domain = -4 ≤ x ≤ 2

Value of y is grater than and equal to 2 and less than and equal to 6

Range = 2 ≤ y ≤ 6

Learn more about Domain here

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Answer:

5xy/27

Step-by-step explanation:

The product of the two numbers x and y = xy

Five times the product of the two numbers x and y = 5xy

then,

divided by a third number 27 = 5xy/27

The expression will be : 5xy/27

Answer:

She likely need to consider additional investment options for her retirement goal.

Step-by-step explanation:

Nick my luts

Answer: C

Step-by-step explanation: im sorry if its wrong creati deleted all my points and im at -92 points

Answer:

Notebooks= 8.75

computer bags=74.95

Amount with tax = Approximately 89.559