What is 2 + 2, minus 4?

Answer:

Train B is traveling faster

Step-by-step explanation:

From the picture, we want to know which train is traveling faster

We can know this by knowing the speed of the trains

Mathematically;

speed = distance/time

Train A

12.5 m in 1 second

speed = 12.5/1 = 12.5 m/s

Train B

100 m in 4 seconds

speed = 100/4 = 25 m/s

So train B is traveling faster

This is because it covered a distance of 100 m in 4 seconds as opposed to train A which covered a distance of 12.5 m

in 1 second

Answer:

slope of perpendicular line is -1/4

Step-by-step explanation:

slope of standard equation of line that is ax+ by = c is

slope m = -a/b

given equation is

12x – 3y = 81

comparing it with ax+ by = c

a = 12

b = -3

thus

slope of given line = -12/-3 = 4

we also know product of slope of two perpendicular line is -1

let the slope of other line be m

thus,

product of given line line and perpendicular line is -1

4*m = -1

m = -1/4

Thus,

slope of perpendicular line is -1/4

Answer:

121 1/4

Step-by-step explanation:

The stock market went up 30 1/2 points, then down 90 3/4 points. The total change is equal tor 121 1/4.

Answer:

188

Step-by-step explanation:

3(8^2)-4

3(64)-4

192-4

188

Answer:

[tex]3\sqrt7[/tex]

Step-by-step explanation:

This is because you can split 63 into two numbers, [tex]\sqrt{9}[/tex] and [tex]\sqrt{7}[/tex]. When you simplify [tex]\sqrt{9}[/tex] turns into 3 but [tex]\sqrt{7}[/tex] will not simplify further so it will be [tex]3\sqrt{7}[/tex].

Answer:

$0.15

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

The intercept is the point where the graph crosses over the y-axis

Answer:

it would be 7 and 8

Step-by-step explanation:

Answer:

rational numbers lie between 2 and 3 are infinite there are infintie numbers of rational number which lie between 2 and 3

Answer:

A. 1.88

Step-by-step explanation:

In less fancy terms, a constant of proportionality is essentially a rate of change - or more specifically, a unit rate.

It's the number we multiply our independent variable by to get the y. You can find this by simply dividing the y value by the x value!

Let's choose the first order pair (2, 3.76).

[tex]3.76 \div 2 = 1.88[/tex]

We can check that this table IS constant by doing the same with the other values... we should always get 1.88!

[tex]7.52 \div 4 = 1.88\\9.40 \div 5 = 1.88\\15.04 \div 8 = 1.88[/tex]

This is true for all values - which means our constant is 1.88

Hope I was of assistance! #SpreadTheLove<3

Answer: 1

Step-by-step explanation:

The y axis goes up and down. The slanted line meets the Y axis at 1.

Answer:

1

Step-by-step explanation:

the y intercept would be 1 because that’s where the line passes through the y axis. A more mathematical term would be, the y intercept is (0,1)

Step 1: Add 3x to both sides to get 4 = 3x - 1

Step 2: Add 1 to both sides to get 5 = 3x

Step 3: Divide by 3 on both sides to get 5/3 = x

Answer:

x = [tex]\frac{5}{3}[/tex]  or [tex]1 \frac{2}{3}[/tex]

Step-by-step explanation:

Isolate the variable x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction.

~

Step 1:

Subtract 4 from both sides of the equation:

4 (-4) - 3x = -1 (-4)

-3x = -1 - 4

-3x = - 5

Step 2:

Divide -3 from both sides of the equation:

(-3x)/-3 = (-5)/-3

x = -5/-3

x = 5/3

x = 1 2/3

Answer:its actually yes, yes, no

Step-by-step explanation:

I have the answer bc it showed the answer on my test right after

Answer:

I would say C

Step-by-step explanation:

Since two negatives make a positive

Answer:

9 9/16

Step-by-step explanation:

The first step is to find the LCD of 16 and 2

It is 16, and you can multiply the 6 1/2 by 8 which equals 6 8/16

Then you add

3 1/16 + 6 8/16 is equal to 9 9/16, which is your answer.

Hope this helped

Sorry if it's wrong

:)

Answer:

the chef has 9 9/16 pounds of flour

Answer:

[tex] \frac{13}{35} [/tex]

Step-by-step explanation:

To add or subtract two or more fractions from each other, the denominators have to be the same. To make the denominators the same, we should find the least common multiple of 5 and 7. The least common multiple of 5 and 7 is 35. 5 should be multiplied with 7 to get 35 and 7 should be multiplied with 5 to get 35 (with both numerators).

[tex] \frac{4}{5 } - \frac{3}{7} [/tex]

[tex] \frac{4 \times 7}{5 \times 7} - \frac{3 \times 5}{7 \times 5} [/tex]

[tex] \frac{28}{35} - \frac{15}{35} [/tex]

[tex] \frac{13 }{35} [/tex]

When subtracting, only subtract the numerators (the denominators are kept as is).

Answer:

the answer is 13/35

Step-by-step explanation:

Answer:

66 x+6

Step-by-step explanation:

Because you add from the x's then you go on from the hope this helped :) .

Answer:

length is 15 cm

Step-by-step explanation:

4 * 4 * x = 240

16x=240    : divide by 16 on both sides

x = 15

then to check

15 cm x 4 cm x 4 cm = 240 cm^3

Answer:

y= -2x -5

Step-by-step explanation:

Slope-intercept form:

y= mx +c, where m is the slope and c is the y-intercept.

Parallel lines have the same slope.

Thus, to find the value of the slope of the line, we have to find the slope of the given line.

y= -2x -1

Since the coefficient of x is -2 and the equation is already in slope-intercept form, the slope of the given line is -2.

Substitute m= -2 into the equation:

y= -2x +c

To find the value of c, substitute a pair of coordinates.

When x= -2, y= -1,

-1= -2(-2) +c

-1= 4 +c

c= -1 -4 (-4 on both sides)

c= -5

Thus, the equation of the line is y= -2x -5.

Answer:

40 %

Step-by-step explanation:

40% off - 31.20/52 = .60 which means a 40% discount

hope this helps! :)

Answer:

Cool Down 2:

y = -2x+4

y=1x+1

Part 2:

y = -5/1x +3

y = -6/1x +4

Step-by-step explanation:

Answer:

41.309 kg, 41.32 kg, 41.236 kg

Step-by-step explanation:

I think these are the correct answers.

Answer:

Line s and Line t are parallel.

Step-by-step explanation:

Now, we know that angles 1 and 2 are congruent, because they have the same angle measures. Now, looking at their positions, we can see that they are alternate exterior angles.

By the converse of the Alternate Exterior Angle, (I do not remember exactly how the theorem went) if two lines are cut by a transversal and have congruent alternate exterior angles, then the lines are parallel. Using this theorem, we can find that lines s and t are parallel, because they are cut by a transversal and their alternate exterior angles are congruent.

I hope you find my answer and explanation to be helpful. Happy studying.

Answer:

If (4, y) is an ordered pair of the function, then y = 1.

Step-by-step explanation:

Answer:

1 is your answer ;)

Step-by-step explanation:

When it comes down to it graphing is really easy all your doing is lining up dots on a coordinate grid or a axis.

Answer:

hope that will help you

Answer:

its a good thing but the warnings u may get banned

Answer:

y = -1/4x + 4

Step-by-step explanation:

x+4y=28

4y = -x + 28

y = -1/4x + 7

slope m = -1/4

Parallel lines have similar slope so we'll use -1/4 from above and given point (8,2) to find y-intercept.

y = mx +b

2 = -1/4(8) + b

2 = -2 + b

b = 4

Using m and b from above we can now form the new equation of line that is parallel to y = -1/4x + 7.

y = mx + b

y = -1/4x + 4

Answer:

369600 feet per hour

Step-by-step explanation:

1m = 5280ft

5280 x 70 = 369600

Answer:

369,600 feet per hour

Step-by-step explanation:

1 mile = 5,280 feet

70 mph (cheetah's speed) x 5,280 feet (feet in 1 mile) = 369,600 feet (cheetah's speed in feet)