A first-degree equation in three variables graphs as a. a line c. a sphere b. a plane d. a paraboloid

Answer:

9.5

Step-by-step explanation:

Answer: 6700 meters

Step-by-step explanation:

From the question given, we are informed that Gephart is traveling from his house to the history museum and that the distance from home to the history museum is six and seven-tenths kilometers.

In order to know the distance in meters

that he will travel to the museum, we have to multiply the convert the distance given in kilometers to meters. This will be:

1000 meters = 1 kilometer

Therefore, 6 7/10km = (6 7/10 × 1000m)

= 6 7/10 × 1000

= 67/10 × 1000

= 67 × 100

= 6700 meters

He'll travel 6700 meters to the museum.

Answer:5.9

Step-by-step explanation: Clarification from teacher

Answer:

30

Step-by-step explanation:

2a +4

Let a = 13

2*13 +4

Multiply

26 +4

Add

30

Answer:

The answer is 4:52

Step-by-step explanation:

Because each type of cards has four pairs

Answer:

The answer is 28.5

Step-by-step explanation:

Right triangle: 4.5

Top triangle: 6

Rectangle: 18

Your welcome :)

Answer:

(x+3)/(x-4)

Step-by-step explanation:

[2x²/(x-4)(x-3)] - [x²+9/(x-4)(x-3)] =

(x²-9)/(x-4)(x-3) =

(x+3)(x-3)/(x-4)(x-3) =

x+3/x-4

Answer:

2x²/x² - 7x + 12 - x² + 9/x² - 7x + 12

2x²/x² simplifies to just 2 (the x²s cancel out)

2 - 7x + 12 - x² + 9/x² - 7x + 12

add like terms: (2 + 12 + 12) + (-7x - 7x) - x² + 9/x²

= - x² - 14x + 9/x² + 26

Answer:

I'd try to do that, but it cannot be done.

Step-by-step explanation:

The above sentence contains 30 letters, including 3 "e"s, so the frequency of e is 3/30 = 0.1 = 10%

Answer:

32

Step-by-step explanation:

hope this helps

Answer:

x<12

Step-by-step explanation:

Let's solve your inequality step-by-step.

x−3<9

Step 1: Add 3 to both sides.

x−3+3<9+3

x<12

Answer:

x<12

Answer: I believe it is A.

Answer:

1=30

2=90

3=21

4=39

5=39

6=24

7=24

8=66

9=66

10=21

11=60

12=120

13=60

14=120

15=48

16=105

17=27

18=129

19=51

20=129

21=51

Step-by-step explanation:

please please please pleas mark me brainliest that was really hard

Answer:

The creation of Hammurabi's Code came about in response to a need for a solid code of law in the the realm of ancient Mesopotamia. It was created by the sixth Babylonian king, named Hammurabi, and put into law certain rules like "an eye for an eye, a tooth for at tooth

Step-by-step explanation:

Answer: its not loading

Step-by-step explanation:

Answer:

angle 5 is 100.

Step-by-step explanation:

angle 1 and 5 are the same because they are alternate angles

Answer:

7-6x+15=-3x-7

29=3x

x=29/3

the asnwer is D

Answer:

20:18 30:27 40:36 etc..

Step-by-step explanation:

To find equivalent ratios you multiply both 10 and 9 by the same number to find equivalent ratios.

Answer:

it means twenty-five and a half

Step-by-step explanation:

Answer:

25 is the whole number, and 1/2 is half. It can also be 25.5

Step-by-step explanation:

Answer:

Your answer is -5/2.

Step-by-step explanation:

Use the slope equation. (Refresh if you cant see below.)

[tex]\frac{y_2-y_1}{x_2-x_1}\\\text{Substitute two points into the equation. We can use the first two, (3, 5), and (5, 0).}\\\frac{0-5}{5-3}\\\text{Subtract.}\\-\frac{5}{2}[/tex]

Answer:

c) y+4=3(x+1)

Step-by-step explanation:

Answer:

C. [tex]y+4=3(x+1)[/tex]

Step-by-step explanation:

Hi there!

What we need to know:

1) Determine the slope of the line

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] where the given points are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug in the points (-1,-4) and (2,5)

[tex]=\frac{5-(-4)}{2-(-1)}\\=\frac{5+4}{2+1}\\=\frac{9}{3}\\=3[/tex]

Therefore, the slope of the line is 3. Plug this into [tex]y-y_1=m(x-x_1)[/tex] :

[tex]y-y_1=3(x-x_1)[/tex]

2) Plug the point (-1,-4) into [tex]y-y_1=3(x-x_1)[/tex]

[tex]y-(-4)=3(x-(-1))\\y+4=3(x+1)[/tex]

Therefore, the correct answer is C.

I hope this helps!

Answer:

√157 units or about 12.53 units

Step-by-step explanation:

Equation of circle: (x-h)²+(y-k)²=r²

Center: (h,k) -> (2,2)

Equation so far: (x-2)²+(y-k)²=r²

Plug in (-9,-4) to find r: (-9-2)²+(-4-2)²=r² -> 121+36=r² -> 157=r² -> √157=r

Therefore, the radius of the circle is √157 units or about 12.53 units

Answer:

The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)

solve and get

(2.5,17.5)

or x= 2.5 y=17.5

Step-by-step explanation:

The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x

7x-x=15

6x=15

x=2.5

Then we can solve for y

y=7(2.5)

y=17.5

Answer: 3, 6, 3, 6

Step-by-step explanation:

See what common factors they are able to be multiplied by

Hope this helps

Answer: The answer is x=[tex]\frac{-3-\sqrt{65} }{4}[/tex], [tex]\frac{-3+\sqrt{65} }{4}[/tex]

Step-by-step explanation:

1) You can solve a situation like [tex]ax^2+bx+c=0[/tex] using the quadratic formula

[tex]x=-b[/tex]±[tex]\sqrt{b^2-4ac}[/tex] / 2a

2) Apply that to the problem and we get x= -3±[tex]\sqrt{3^2-4*2*(-7)}[/tex]/2*2

3) Solve what's inside the square root and what's at the denominator --> x=-3±[tex]\sqrt{65}[/tex]/4

4) separate the solutions ---> [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]

5) Your final solutions are [tex]x=\frac{-3+\sqrt{65}}{4} , \frac{-3-\sqrt{65}}{4}[/tex]

Answer:

$14.70

Step-by-step explanation:

Find the 30% decrease:

21*0.3 = 6.3

Find new price:

21-6.3 = 14.7

Answer:

$14.7

Step-by-step explanation:

First, we need to convert the percentage to a decimal. 30% = .30

Now we multiply the price times the decimal, 21 x .30 = 6.3

We subtract this amount from the previous cost. 21 - 6.3= $14.7

Answer:

-4

Step-by-step explanation:

-3-9 +8

-12 + 8

= -4

Answer:

0.3

Step-by-step explanation:

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Answer:

0.3

Step-by-step explanation:

djdjwinqwp9dejnedm

Answer:

angle 2=81 degree

angle 1 =126 degree

Step-by-step explanation:

Answer:

C) 380.13

Step-by-step explanation:

The area of a circle is

[tex]A=\pi r^{2} \\A=\pi 11^{2}[/tex]

Answer:

A. 5

Step-by-step explanation:

just did the quiz on .