Mathematics High School

What Does C equal in



[tex]\sqrt{8c+4}[/tex]


Along with the answer, please provide an explanation on how to do the +4

Answers

Answer 1
square the entire thing which gets ride of the root so (8x+4)^2 now solve. 8x^2+4^2. 64x+16
Answer 2

Answer:

See below.

Step-by-step explanation:

We have the expression:

[tex]\sqrt{8c+4}[/tex]

And we want to determine the domain restrictions of the expression.

Remember that the radicand (expression under the square root) must always be positive or 0. This is because we can't take the square root of a negative (and the square root of 0 is just 0). So, to find the domain restrictions, we can write and solve for the following inequality:

[tex]8c+4\geq0[/tex]

This is saying (8c+4) must be greater than or equal to 0. In other words, it's positive or 0.

So, solve for c. Subtract 4 from both sides:

[tex]8c\geq-4[/tex]

Now, divide both sides by 8. This yields:

[tex]c\geq4/8\\c\geq -1/2[/tex]

So, our c must be greater than or equal to -1/2. If it is less than -1/2, we won't have a solution.

Related Questions

PLEASE HELP WILL GIVE BRAIINLIES AND DONT PUT RANDOM WORDS

Answers

Answer:

8a. $432

8b. about 36 2/3 hours

9. %17.50 per article

10. $338.4 after 3 weeks

Step-by-step explanation:

Able has a younger sister and an older brother. - Able’s age can be represented by x. - Able’s sister is 4 years younger than him. - Able’s older brother is twice as old as he is. - The combined age of all three siblings is 32. How old is Able’s younger sister?

Answers

Answer:9

Step-by-step explanation:

I did the math

Given:

Able's age can be represented by x.

Able's sister is 4 years younger than him.

Able's older brother is twice as old as he is.

The combined age of all three siblings is 32.

To find:

The age of Able's younger sister.

Solution:

Able's age can be represented by x.

Able's sister is 4 years younger than him.

Age of Able's sister = (x-4)

Able's older brother is twice as old as he is.

Age of Able's older brother = 2x

The combined age of all three siblings is 32.

Add 4 on both sides.

Divide both sides by 4.

The age of Able is 9 years. So, age of his younger sister is

Therefore, the age of Able's sister is 5 years.

solve the inequality 2x + 8 < 5x − 4.

Answers

Answer:

x>4

Step-by-step explanation:

2x+8<5x-4

4+8<5x-2x

12<3x

4<x

x>4

Answer:

x > 4

Step-by-step explanation:

Jana earns 3 minutes of free time for
every 2 books she reads. If Jana has
half an hour of free time built up, how
many books has she read?
© 15
G 20
40
J 90
Math

Answers

Answer:

20

Step-by-step explanation:

(20 books / 2) * 3 = 30 minutes

She has read 20 books.

To find means to cover. Choose the missing prefix.
1. pre
2. dis
3. in
4. con​

Answers

2. (dis) is the prefix and cover is the middle between or after/ before a suffix/prefix.

it is B: Dis Hope this helps

how do I subtract 4 5/6 - 1 2/3​

Answers

Convert it into an improper fraction. Find your common denominator then subtract. If this doesn’t help let me know.

make g the subject of the formula w = 7 - √g

Answers

Answer:

[tex](-w + 7)^{2}[/tex] = g

Step-by-step explanation:

w - 7 = -√g

-w + 7 = √g

[tex](-w + 7)^{2}[/tex] = g

is -3 plus pi a rational number or a irrational number

Answers

Answer:

irrational

Step-by-step explanation:

An irrational number has an endless number of digits to the right of the decimal

Find the slope of a line parallel to the given line:

7x - 3y = -6

Answers

Answer:

7/3x

Step-by-step explanation:

parallel lines have the same slope, so you would have to find the slope of the first line.

7/3x

Hope this helps :-)

Evaluate 6y - 2 by substituting each value for y.( show working out)

A) y= 1/3 B) y= 2.5​

Answers

Answer:

A) 0

B) 13

Step-by-step explanation:

A) 6*1/3=2, 2-2=0. 6(1/3)-2=0

B) 6*2.5=15, 15-2=13. 6(2.5)-2=13

the cost for a pack of 15 pens is $3.15. find the unit price in dollars per pen. if necessary, round to the nearest cent

Answers

each pen is $0.21, you solve by dividing 3.15 by 15 (3.15/15)

Right answer is correct

Step-by-step explanation:

3x=6

X=6

_

3

X=2..

3Y=3

Y=3/3

Y= 1

DUE SOON
evaluate -3 1/5 + 7 3/5 =
-5 +2 - 8 -(-14)= show work pls

Answers

Answer:

It's false their is no variable to solve it with i think you forgot to put the variable

Step-by-step explanation:

Which expression would represent the cost of one CD, if the total cost for three of them is $36?
3(36)
O 36-3
O
36
3
O3 + 36

Answers

Answer:

[tex] \frac{36}{3} [/tex]

Step-by-step explanation:

If there CDs cost $36, each one costs $12. Hope this helps!

what is -19/20 as a decimal

Answers

Answer:

-0.95

Step-by-step explanation:

Answer:

-0.95 in decimal

Step-by-step explanation:

Rewrite each geometry formula using function notation. Use the same variables as the formula in your function. Evaluate each function when r=5 feet. Do not round; write answers in terms of pi, if necessary. Explain the meaning of the result.

a. Diameter, d=2r
The formula using function notation is _______; The value when r=5 is _______; The diameter of the circle is ______ feet when the radius is ________ feet.

b. Area, A=pi x r^2
The formula using function notation is _______; The value when r=5 is _______; The area of the circle is ______ feet when the radius is ________ feet.

c. Circumference C=2 x pi r

The formula using function notation is _______; The value when r=5 is _______; The Circumference of the circle is ______ feet when the radius is ________ feet.

Answers

Answer:

A) d(r) = 2r

Value when r = 5 is 10 ft.

diameter is 10 ft when the radius is 5ft

B) A(r) = πr²

Value when r = 5 is 25π ft²

Area is 25π ft² when radius is 5 feet

C) C(r) = 2πr

Value when r = 5 is 10π

Circumference is 10π when radius is 5 feet

Step-by-step explanation:

A) Using function notation, since d = 2r

d(r) = 2r

d(5) = 2(5)

d(5) = 10 feet

This means that the diameter is 10 ft when the radius is 5ft

B) Area = πr²

In function notation, its;

A(r) = πr²

When radius is 5 feet,

Area is; A(5) = π(5²) = 25π

It means Area is 25π ft² when radius is 5 feet

C) Circumference is 2πr

In function notation, it's;

C(r) = 2πr

When r = 5 feet,

Circumference is;

C(5) = 2π(5)

C(5) = 10π

is 55 810 a multiple of 10

Answers

Answer:

Yes

Step-by-step explanation:

Any number that ends with a zero is a multiple of 10

Yes 10 *5581 = 55810

2. Use the distributive property to rewrite the following expression.
3(x+5)

Answers

The answer is 3x+15

You multiply the x and 5 by 3 to get 3x and 15

3^4 x 3^8= 3 to the power of what

Answers

Answer:

3^12

Step-by-step explanation:

When the whole numbers are the same, add the exponents

plz help what is 10 to the 8th power divided by 9.5 x 2.3

Answers

Answer:

24,210,526.31578947

Step-by-step explanation:

1/2x + y p= 4 find y

Answers

Answer:

y = 4/p−x/2p

(4 over p is a fraction as well as X over 2p)

Answer: p=-x+8/2y

Step-by-step explanation: 1

2

x+yp=4

Step 1: Add (-1)/2x to both sides.

py+

1

2

x+

−1

2

x=4+

−1

2

x

py=

−1

2

x+4

Step 2: Divide both sides by y.

py

y

=

−1

2

x+4

y

p=

−x+8

2y

Answer:

p=

−x+8

2y

Can you always draw a piecewise function without picking up your pencil.

Answers

Answer:

Yes

Step-by-step explanation:

A function is continuous on an interval if the graph has no breaks, jumps, or holes. You can draw it without picking up your pencil.

If P*Q = PxQ - 7,
what is 9*5?

Answers

Given problem:

 What is 9*5;

 The formula P*Q  = P x Q  - 7;

To  find 9*5, simply make P = 9 and Q = 5

Input into the equation and solve;

   

   P*Q  = P x Q  - 7    =   9 x 5 - 7

                                 = 45 - 7

                                 = 38

The solution to this problem is 38.

f(x)=4x2−16x+16 for x.

Answers

Answer:

(h, k). (2,0)

The daily consumption of milk in a house is 3.25 litres. How much milk will be consumed in 30 days?


​

Answers

Answer:

Milk consumed in 30 days = (30 days)(3.25 litres/day) = 97.5 litres

Step-by-step explanation:

You are given a rate at which the milk is consumed (3.25 litres per 1 day). This is just multiplied by the 30 days to get your answer.

Answer:

97.5

Step-by-step explanation:

Daily :3.25

Days: 30

So,

3.25× 30

=97.5

What congruency theorem would this be : SSS, SAS or ASA ???

Answers

It is probably sss but I’m not good at these but I see no angles so yeahhh

BRAINLY PLS HELP I BEG YOU I NEED YOYR HELP ASP !

Answers

Answer:

3

Step-by-step explanation:

We can find the value of x using Euclidean theorem

√18^2 = 5 × x

18 = 5x

3 = x

Giovanni went to the Lowe’s looking for supplies. He bought three pounds of cement for $27.75 per pound. A plant for $12.58. He paid $8.99 is sales taxes. How much did he pay in total at Lowe’s?

Answers

Step-by-step explanation:

Hey there! Let's break this answer down.

1. If he bough 3 pounds of cement for $27.75 each, that 3x27.75, which is $83.25. So he spent $83.25 on cement.

2. Next, add $12.58 for the cost of the plant to $83.25, which $95.83.

3. Finally, he paid $8.99 for the sales tax. When adding that to $95.83, we get $104.82.

So, his total was $104.82.

Have a great day!

Answer:

104.82

1Step-by-step explanation:

27.75 times 3 equals 83.25 plus 12.58 equals 95.83 then add 8.99 which is $104.92

Please answer correctly !!!!!!!! Will mark brainliest answer !!!!!!!!!!! Show your work !!!!!!!!!!!

Answers

Answer:

4x +8= 20

2x+3= 9

Step-by-step explanation:

4 times 3 equals 12 and 12+8 = 20

2 times 3 is 6 and 6+3=9

Answer:

4x+8=20

2x+3=9

Step-by-step explanation:

I used substitution.

I substituted x with 3 so

4(3)+8=20

same with the other one,

2(3)+3=9

Hope this helped!

The graph of a quadratic function creates a curve called a hyperbola. True False

Answers

Answer:

its false

Step-by-step explanation:

What is this answer?

Answers

Answer:

A. 2

Step-by-step explanation:

It tries to trick you, but all you are going to do is multiply all the numbers together. -1*-8*(1/4)= 2 which is the same as xyz = 2

Hope this helped!!

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