Is the square root of 7 minus the square root of 7 a rational number?

Answer:

Step-by-step explanation:

Answer:

150−30=120 papers are still left to do

Step-by-step explanation:

150−30=120 papers are still left to do

Answer:

y=18

Step-by-step explanation:

explanation is in the attachment above

Answer: y – 3 = –1/7(x – 3)

The domain of the function f(x) = 2x² + 2x + 4  is (-∞, ∞).

The polynomial equation whose highest degree is two is called a quadratic equation or sometimes just quadratics. It is expressed in the form of:

ax² + bx + c = 0

where x is the unknown variable and a, b and c are the constant terms.

You have the quadratic function

f(x) = 2x² + 2x + 4 ,

and remember that all quadratic functions are parabolas opening at point called the vertex.

Since you can plug any real number in our parabola here, its domain is all the real numbers, and this is true for all the quadratic functions of the form ax² + bx + c = 0.

Thus, in interval notation the domain of the function  is (-∞, ∞).

Learn more about Quadratic Equation from;

https://brainly.com/question/2263981

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Answer:

=3x^2+4

Step-by-step explanation:

Subtract 8 from 12.

3x^2+4

Answer:

I think it is C.

Step-by-step explanation:

Answer:

volume is length x width x height, the answer is 160 cubed feet.

Step-by-step explanation:

Length x width x height and bam, there is your answer

Answer:

5200

Step-by-step explanation:

You know that she needs 14,500 for her first year

she has a total of 3000+6300 so far

To find out how much she needs just take the difference

14500-(3000+6300)=5200

Answer:

Step-by-step explanation:

Given the expression 49m²-84mn+36n², this can also be written as;

49m²-84mn+36n²

= 7²m² - 84mn + 6²n²

= (7m)²-2*7m*6n+ (6n)²

= (7m-6n)²

= (7m-6n)(7m-6n)

Hence the expanded form is  (7m-6n)(7m-6n)

Answer:

Step-by-step explanation:  sin β = [tex]\frac{oposite }{hypotenuse}[/tex] ; cos β = [tex]\frac{Adjacent}{Hypotenuse}[/tex]

10) sin [tex]32^{0}[/tex] = [tex]\frac{x}{18}[/tex]

18 sin [tex]32^{0}[/tex] = x

18 (0.53) = x

x= 9.5 units

cos [tex]32^{0}[/tex] = [tex]\frac{y}{18}[/tex]

18 cos [tex]32^{0}[/tex] = y

y = 18 (0.85)

y = 15.3 units

You use the same strategy for the rest of the questions. Feel free to reach out if you have more questions.

Answer:

you would save 11.51 dollars

Step-by-step explanation:

12 cans times the vending machine price of 1.25$= $15

15-3.49=11.51

Answer:

6

Step-by-step explanation:

divide 4 and 24

Answer:

sonn 12 laalkznjsnl nalslaonhfj. alallkzhdbb nLaojahdnldl

Answer:

Yes

Step-by-step explanation:

For example

Doctors have two methods of calculating maximum heart rate. With the first method, maximum heart rate, y, in beats per minute is y=220−x, where x is the person’s age.

Answer:

y = 6/5x

Step-by-step explanation:

1. [tex]y = \frac{-1-5 }{-5-0}[/tex]

2. subtract the two number on the top of the fraction bar to get 6

3. do the same for the denominator to get 5

4. your final answer is [tex]\frac{6}{5}[/tex]

Answer:

What are the options?

Step-by-step explanation:

I'll do it once it the options

Step-by-step explanation:

____2__divisible by both 2 and 5

Answer:

9 hours

Step-by-step explanation:

208 / 13 = $16 per hour

144 / 16 = 9 hours

Answer:

9 hours

Step-by-step explanation:

208 divided by 13 is 16. So then u take 16 and divide it by 144, and if you do long division you would get 9. Hopefully this helps

Step-by-step explanation:

y=5x-5

y= -4x+22

1- use y=5x-5 solve for y (here you don't really have to do anything)

       This stays the same, Therefore y = 5x-5

2- you will substitute y=5x-5 for y in y= -4x+22. The problem should now look like this:

               5x-5= -4x+22

now, with the equation above you will solve for x-

5x-5= -4x+22         (add 4x to both sides)

9x-5= 22               (add 5 to both sides)

9x=27                   (divide by 9)

x=3

Now that you Know that x=3 you can substitute x=3 for x in y=5x-5. The problem should look like this:

                                                    y= 5(3)-5

Now with the equation above you can solve for y

y= 5(3)-5              (multiply 5 by 3)

y= 15-5                 (subtract)

y=10

Now you have your answers X=3  Y=10

i hope this helps!

Answer:

ANSWER

Step-by-step explanation:

Answer:

12.5 + (16.25 * 1.0716)x ≤ 175

Step-by-step explanation:

The state tax is approximately 7.16%, so it's why I multiplied 16.25 with 1.0716.

Answer:

rrrrrrreeeeeeeeeee

Step-by-step explanation:

jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj

y=2

There is no slope because the y value stays constant. When the table is graphed, it is a horizontal line at 2. I hope this helps!

Answer:

50.24 inches

Step-by-step explanation:

[tex]3.14 * 4^{2}[/tex]

3.14 * 16

= 50.24

Answer:

5.667 yards of fabric was used to make a cape

Step-by-step explanation:

(Total Yard of Fabric)1/3 = (What's Used)

Total Yard Fabric = 17

What's Used = x

1 third = 1/3

(17)1/3 = x

x = 17/3 or about 5.667 yards of fabric used

Double Check:

5.667/17 = 0.3334 which is about 1/3

If you want to find how much he has left:

1 - 1/3 = 2/3

17(2/3) = x

x = 34/3 or about 11.333 yards of fabric left.

Double Check:

11.333/17 = 0.6666 which is about 2/3

Answer:

False b=9

Step-by-step explanation:

In the equation 5b+45, b is equal to 9

The way we get this answer is by dividing each term by 5 and then simplifying

45/5

45/5=9

Hope this helps :)