2x - 4y + 12 for x = -2 and y= 3

Answers

Answer 1

Answer:

The answer is -4

Step-by-step explanation:

2(-2) - 4(3) +12

-4 - 12 + 12

-16 + 12

-4

Hope this helps!

Answer 2

Answer:

Step-by-step explanation:

If we evaluate the expression it will look like:

-4-12+12

if we solve it:

-4-12 = -16 ( because when there are two negative we add them )

-14+12 = -4 ( because when there are a positive and a negative we subtract them)

-4-12+12  = -4

have a wonderful day


Related Questions

What is the volume of the cone

Answers

Answer:

37.68

Step-by-step explanation:

use the formula pi(3.14)r^2 h/3

HELP PLEASE DUE AT 11:59 PM
does the data in the table show a proportional relationship?

Answers

Answer:

Yes.I divided 22.5 by 3, and got 7.5

22.5/3=7.5

I then added 7.5 from 22.5

22.5+7.5,

and I got 30.Once I got into the bigger numbers, I just multiplied 7.5 by the last number

7x7.5= 52.5

All the numbers were constantly added by 7.5, so

the table is a proportional relationship.

I hope this helped! +*♡


Simplify this expression. Assume that w is nonzero. Use pencil and paper. Describe how the values of the expression vary with the values chosen for w.
Give examples.
8w^0

Answers

Answer:

[tex]8w^{0} = 8[/tex]

Step-by-step explanation:

[tex]8w^{0}[/tex] ------------(1)

Assume any non-zero value of w (w=2)

Put this value in (1)

[tex]8(2)^{0}[/tex]

zero power of any number is 1. Therefore

[tex]8(2)^{0} = 8[/tex]

Assume any other non-zero value of w (w=100)

Put this value in (1)

[tex]8(100)^{0}[/tex]

we know zero power of any number is 1. Therefore

[tex]8(100)^{0} = 8[/tex]

For any non zero value of w answer will always be 8. Expression can be written in simplified form as

[tex]8w^{0} = 8[/tex]

Which of the following statements about JK and JL is true


A. JK is longer than JL

B. JK and JL are the same length

C. JK is 9 units long

D. JL is longer than JK

Answers

Answer:

A. JK I longer than JL

Step-by-step explanation:

is the right answer

proportional relationships

Answers

1. 720 words in 18 minutes

2. The number 240 is missing

3. A. 120

I hope this helps you

Diameter of a circle is something the length of its radius

Answers

the radius is half of the diameter, so d = 2r , or double the radius :)

What is the value of x in the equation x − 7 = 11?
a) 1.57
b) 4
c )15
d) 18

Answers

Answer:

18

Step-by-step explanation:

Take x-7=11 and then reverse what the 7 is doing in the equation.

11 + 7 = 18

Plug in 18 to double check.

18 - 7 = 11

I'm terrible at math and this is the best explanation I can give sorry

The diagram below shows a stair which is 1 foot deep.

mark as brilliant! help​

Answers

Answer is C. 1 2/3

A^2 + B^2 = C^

A^2 + 1 = 1 2/3^2

A^ + 1 = 2 7/9

A^2 = 2 7/9

Square root of both makes it
A = 1.66666 or 1 2/3

ANSWER IS 1 2/3

1000 with an interest rate of 2%

Answers

Answer:

1000+2%×1000=1000+20=1020

I need help with this please

Answers

Answer:

the answer is 80 degrees. angle between 2 parrael line is same

If I’m 24 in 1979 what year was I born in?

Answers

Answer:

1950

Step-by-step explanation:

If you were 24 in 1974, simply subtract 24 from 1974 to find what year you were born in:

1974-24= 1950

Of course, it may be +/- 1 depending on what month you were born in, and what month it is now!

I hope this helps! :)

Math Please Help Make sure you explain your answer Thanks Have a blessed day!..

Answers

Answer:

15 is a solutin but 9 is not

Step-by-step explanation:

x-3=12 does not have a x a x is a 3

Answer: the answer is B

Step-by-step explanation: 15-3=12 Is true, but 9-3=12 is not true because

9-3=6 not 12 so that is why the answer is B

Simplify: 3x + 9 +2x-3

Answers

Answer:

3x + 9 + 2x -3

add like terms for the answer of:

5x + 6

so 5x + 6 is the answer

Answer:

it might be: 5x+6

Step-by-step explanation:

What is the slope (-4,20) (-10,-17)

Answers

Answer:

The slope is 37/6

Step-by-step explanation:

m= (y2-y1)/(x2-x1)

m= (-17-20)/(-10+4)

m= (-37)/(-6)

m= 37/6

Nigel went to an ice rink and paid $5 for admission plus an additional $2.50 per hour to rent skates. The total cast was $15. How many hours was Nigel renting skates.

Answers

He rented skates for 4 hours

if lines are parallel with a transversal, then these two angles are ?​

Answers

Answer:

Alternate Interior Angles

WILL MARK YOU BRAINLIEST HURRY PLZ IM ON A TIME LIMIT

Answers

Answer:

radious = 22

Step-by-step explanation:

It's given that PL = PM

so the equation is

3x+4=6x-14

3x-6x=-14-4

-3x=-18

x=6

6x-14

6.6-14

36-14

22

Answer: 22

because PL = PN = PM => P is the centre of the inscribed circle of ΔHJK

=>  the radius = PL =PM =PN

because PL = PM

=> 3x + 4 = 6x - 14

⇔ 3x = 18

⇔ x = 6

=> PL = 3.6 + 4 = 22

Step-by-step explanation:

Complete the point-slope equation of the line through (1, 3) and (5, 1). Use exact numbers.​

Answers

Answer:

[tex]The \ equation \ in \ point \ and \ slope \ form \ is; \ y - 3 = -\dfrac{1}{2} \cdot (x - 1)[/tex]

Step-by-step explanation:

The coordinates of the points through which the line passes are (1, 3) and (5, 1)

The slope, m, of a line given the coordinates of two known points on the line, (x₁, y₁), (x₂, y₂) can be found as follows;

[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

The slope of the given line is therefore [tex]m =\dfrac{1-3}{5-1} = \dfrac{-2}{4} = -\dfrac{1}{2}[/tex]

The equation of the line in point and slope form is therefore, y - y₁ = m·(x - x₁) or y - y₂ = m·(x - x₂)

Therefore, by substituting the known values, we have the equation in point and slope form as follows;

[tex]y - 3 = -\dfrac{1}{2} \cdot (x - 1)[/tex]

Work out the volume of this sphere.
Give your answer to 1 decimal place.
19 cm
PLEASE HELP

Answers

Step-by-step explanation:

Find the radius: 19 ÷ 2 = 9.5

4/3 x 22/7 x 9.5 x 9.5 x 9.5 = 3592

3592/3 =

1197.3 (Rounded to 1 decimal place)

Answer: 1197.3cm3

(I have never done area or perimeter of sphere before, but I did for other shapes. This is just my attempt using the methods I did for other shapes by the way)

simplify 3/4-1/3+1/2​

Answers

Answer:

[tex] \frac{22}{24} ( \frac{11}{12} [/tex]

hope it's helpful ❤❤❤

THANK YOU.

What is the slope-intercept form of the equation of the line that passes through (0, 5) and (2, 1)?

Answers

Answer:

Y= -2x + 5

Step-by-step explanation:

If x is the measure of an angle, find the complement of the angle


A. x - 90
B. x - 180
C. 90 - x
D. 180 - x

Answers

Answer:

If x is the measure of an angle, the complement of the angle is (90-x).

C. (90-x) is the right answer.

The complement of the angle x will be 90° - x. Then the correct option is C.

What is an angle?

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

Complementary angle - Two angles are said to be complementary angles if their sum is 90 degrees.

If x is the measure of an angle. The complement of the angle x will be

Let y be the complementary angle of x. Then we have

x + y = 90°

y = 90° - x

The complement of the angle x will be 90° - x. Then the correct option is C.

More about the angled link is given below.

https://brainly.com/question/15767203

#SPJ2

Express the interval in​ set-builder notation. (-infinity,-8)

Answers

Answer:

8

Step-by-step explanation:

WILL GIVE BRAINLIEST IF CORRECT!
Which of the following are true about theories?
I. Are accepted as true because of evidence.
II. Are absolute truths.
III. May be discovered as false in the future.

I only
II and III
I and II
I and III

Answers

Answer:

1 and 3

Step-by-step explanation:

1 and 3

Answer:

The answer would be the last option: l and lll :)

Step-by-step explanation:

Please help due in 5 minutes

Answers

Add y subtract 6. Ur left with y=x-6
Add the equations and ur left with 2x-10

At a store, notebooks are on sale for 78% off the regular price. The cost of a notebook
is represented by n. Which of the following expressions DOES represent the sale price
of the notebooks?

0.78n
n -0.22n
n - 0.78n
(1 - 0.22)n

Answers

Answer: C. n-0.78n

n−0.78n

=n+−0.78n

=n+−0.78n

=(n+−0.78n)

=0.22n

if a rectangle has the area of 21 square units, what is the perimeter

Answers

42 units

What we know:
21 = lw

2l + 2w= perimeter

^distribute out 2

2(lw)=p
2(21)=p
= 42

The rectangular room measures 224 square feet long. One side of the room is 14 feet long. What is the perimeter of the room?

Answers

Answer:

60 feet

Step-by-step explanation:

Area of the rectangular room = Length * Width

Given

Area of the room = 224sq. feet

Length = 14 feet

Find the width first

A = LW

W = A/L

W = 224/14

W = 16 feet

hence the width of the room is 16 feet

Get the perimeter.

Perimeter = 2(L+W)

Perimeter of the room = 2(14+16)

Perimeter of the room  = 2(30)

Perimeter of the room  = 60 feet

Hence the perimeter of the room is 60 feet

5. It took 400 rails to create one mile of track. Each rail had ten (10) spikes. Each spike needed three (3) strikes from a hammer. A fast crew could lay four (4) rails in one minute. Crews averaged five (5) miles of track per day. If the distance from Rock Island, Illinois to Sacramento, California is approximately 1800 miles: How many rails were needed? How many spikes were needed? How many hammer strikes were heard each hour? How many days were needed to complete the track?​

Answers

89 days he completed

solve for x round to the nearest tenth

Answers

139 then round it to 140
Other Questions
asap pleaseeeee Name a point that lies only on the y-axis? The terms of the Proclamation of 1763 convinced many American Indians that supporting the British was in their best interests during the American Revolution. What was a term of the proclamation that the American Indians hoped the British would enforce?AColonists were forbidden from leaving colonial borders without an express invitation from American Indian leaders.BColonists were forbidden from settling land west of the Appalachians to prevent conflicts with American Indians.CColonists were required to expand trade with American Indians in an effort to improve the health of their communities.DColonists were required to transfer ownership of land east of the Appalachians to the original American Indian owners. Dinner threw me deeper into despair. My relatives licked the ends of their chopsticks and reached across the table, dipping them into the dozen or so plates of food. Robert and their family waited patiently for platters to be passed to them.What message does Amy Tan's description send?Her relatives are hungry, and Robert's family is not.Her relatives are eager, and Robert's family is hesitant.Her relatives are coarse, and Robert's family is reserved.Her relatives are energetic, and Robert's family is lazy. There are 3 green marbles and 14 silver marbles in a bag. You randomly choose one of the marbles. What is the probability of choosing a green marble? Write your answer as a fraction in simplest form. Solve this equation: -3(x-14)+9x=6x+42A. Solving this equation results in the statement 6=0 because this is a false statement the equation has infinitely many solutions B. Solving this equation results in the statement 0=0 because this is a true statement the equation has infinitely many solutions If you can buy 1/3 of abox of chocolates for 6 dollars, how much can you purchase for 4 dollars write your answer as a fraction of a box Second Intifada3. Hamas was organized in O social, political, militaryO social, economic, educationalO domestic, international, militaryO military, electoral, international Where is the Appearance and Personalization option found?A.in the troubleshooting sectionB.in the performance monitor sectionC.in the safe mode sectionD. in the remote desktop section Why did the Mohican indians choose to fight on the slide on the patriots? If (2)=1, what is the value of x? The following coordinates are found on a line on a graph: (4.3) and (8.6). Using these points, find the constant rate of proportionality." A 85 kg skier races down a hill from a height of 100 m. Ignore friction. Which of the following is NOT a need of all living things? Ralph has 18 muffins and 3 bags. If he puts an equal number of muffins in each bag, how many muffins will each bag have? * Identify the x-intercept and interpret its meaning in the context of the graph a pizza costs $11 and $1.50 per topping what is the variable cost what does Long propose people do once they become millionaires? A) Share the wealth with others. B) donate money to charitable causes. C) help others open bank accounts. D) deposit their money into banks. Robert rolls a cube which is numbered 1 through 6. If he rolls the cube 2 times,what is the likelihood that he will roll 2 even numbers?A.1:/6B.1/5C. 1/2D. 2/3 please helpI beg..... you are the chief speaker in an inter-school debate on the motion water is more useful to man than electricity right for or against the motion