PLEASE HELP ME WITH MY MATHE HOMEWORK!

Subtract the faster speed:

721.6 - 8.4 = 713.2

Divide by 2 trains:

713.2/2 = 356.6

The slower train is going 356.6 miles per hour.

The faster train is going 356.6 + 8.4 = 365 miles per hour.

Answer:

3

Step-by-step explanation:

92x0.2=18.4

18.4 is between 15 and 20

Answer:

i dot kniw

Step-by-step explanation:

Answer:

I think the answer is 209

Step-by-step explanation:

6(green): 5(red)

if we divide 95 by 5 we get 19.

Lets multiply 6 by 19 and we get 114.

114 plus 95 is 209.

hope it helps

Answer:

He will read 72 chapters in 1 day

Step-by-step explanation:

Let us use the ratio method to solve this question

∵ Sam read 6 chapters in 2 hours

∵ He continues to read at this same rate for 1 day

→ We must change the day to hours

∵ 1 day = 24 hours

∴ We need to find how many chapters he will read in 24 hours

→ Chapter  :  Hour

→   6            :   2

→   x            :   24

→ By using cross multiplication

∵ x × 2 = 6 × 24

∴ 2x = 144

→ Divide both sides by 2

∵ [tex]\frac{2x}{2}[/tex] = [tex]\frac{144}{2}[/tex]

∴ x = 72

∴ He will read 72 chapters in 1 day

Given:

Line a passes through (2, 10) and (4, 13).

Line b passes through (4, 9) and (6, 12).

Line c passes through (2, 10) and (4, 9).

To find:

Which of the lines, if any are perpendicular.

Solution:

If a line passes through two points, then the slope of line is

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Line a passes through (2, 10) and (4, 13).  So, slope of this line is

[tex]m_a=\dfrac{13-10}{4-2}=\dfrac{3}{2}[/tex]

Line b passes through (4, 9) and (6, 12).  So, slope of this line is

[tex]m_b=\dfrac{12-9}{6-4}=\dfrac{3}{2}[/tex]

Line c passes through (2, 10) and (4,9).  So, slope of this line is

[tex]m_c=\dfrac{9-10}{4-2}=\dfrac{-1}{2}[/tex]

Product of slopes of to perpendicular lines is -1.

[tex]m_a\cdot m_b=\dfrac{3}{2}\times \dfrac{3}{2}=\dfrac{9}{4}\neq -1[/tex]

[tex]m_b\cdot m_c=\dfrac{3}{2}\times \dfrac{-1}{2}=\dfrac{-3}{4}\neq -1[/tex]

[tex]m_a\cdot m_c=\dfrac{3}{2}\times \dfrac{-1}{2}=\dfrac{-3}{4}\neq -1[/tex]

Therefore, any of these lines are not perpendicular to each other.

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Answer:

  Yes, these rates are equivalent because the unit rate of 6 laps per minute matches each rate.

Step-by-step explanation:

In each case we have ...

  laps/minutes = (42 laps)/(7 minutes) = 6 laps/minute = (48 laps)/(8 minutes)

Yes, the rates are both 6 laps/min, so are equivalent.

Answer:

(2)

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = area of base × height

   = 300 × 15

   = 4500 cm³

Answer:

7u, U times 7, and 3u + 4u.

Answer:

d

Step-by-step explanation:

because it makes sense and is proportional

Answer:

0.6 = [tex]\frac{6}{10}[/tex]

Answer:

79/120

Step-by-step explanation:

Answer:

79/120

Step-by-step explanation:

You make all the answers to have the same denomination and then add them.

9514 1404 393

Answer:

  time

Step-by-step explanation:

When you see wording ...

  A is a function of B

it means that B is the independent variable.

Here, you have ...

  gallons ... is a function of time ...

so the independent variable is time.

16x + 21y = 555

Step-by-step explanation:

Let x be the no. of 18-hole course

And y be the no. of golf balls

16x + 21y = 555

Answer:

The value of y, when x = 48 is y = 12/5

Step-by-step explanation:

The given parameters are;

x is directly proportional to y

Where x > 0, y > 0

For x = 3. y = 5

Therefore, we have;

x ∝ a·y²

For ,x = 3, when y = 5, we have;

3 = a × 5² = 25·a

∴ a = 25/3

When x = 48, we have;

48 = 25/3×y²

y² = 3/25 × 48 = 144/25

y = √(144/25) = 12/5

y = 12/5

The value of y, when x = 48 is y = 12/5.

Answer:

2

Step-by-step explanation:

1x = [tex]\frac{d}{dx} \frac{1}{2}x^2[/tex]

[tex]\frac{d}{dx} \frac{1}{2}x^2[/tex]+ [tex]\frac{d}{dx} \frac{1}{2}x^2[/tex]= [tex]\frac{d}{dx} }x^2[/tex]

[tex]\frac{d}{dx} }x^2[/tex] = 2x

2x/x = 2

Answer:

C and B

Step-by-step explanation:

in x=5.9x-19.5 the y int is -19.5 (y=mx+b m = slope b =y int)

According to the information they earn 5.9 of something "every payday" and the y int is them starting out. The only logical answer is C for the first question because every other answer involves slope and not starting value.

For the second one it is B i think since causation means cause to effect or ratio. They are the only values that make since because they are related to eachother.

Sorry for the bad spelling if you need any more information please ask in comments :)

The answers of question 1 and question 2 are option C and B respectively.

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction

Given equation,

y = 5.9x - 19.5

And we have the slope intercept form

y = mx + b,

where m is the slope and b is the y-intercept.

Comparing above of both the equation,

Here, the y intercept is -19.5 and the slope is 5.9

According to the information they earn 5.9 of something "every payday" and the y intercept is them starting out.

The answer is C for the first question because every other answer involves years that means slope and not starting value.

For the second one,

answer is B i think since causation means cause to effect or ratio.

The positive Correlation between the number of typing classes a student takes and the number of words per minute the student can type.

Relation is directly related to each other.

Therefore, the answers of question 1 and question 2 are option C and B respectively.

To learn more about the slope;

brainly.com/question/3605446

#SPJ2

Answer: No

Step-by-step explanation:

This triangle is not a right triangle because:

A right triangle must have one side that is exactly 90°.

A triangle with sides 26, 39, and 43 do not have any sides that total 90.

The answer to your question is no.

Best of Luck!

Answer:

No, the side don't equal 90

Answer:

27

Step-by-step explanation:

Answer:

(0,1.5) (0,-3)

Step-by-step explanation:

Hope it helps :)

Answer:

8/3 = 2 x 4/3

Step-by-step explanation:

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Answer:

  4C, 5D, 6A, 7E, 8B, 9s

Step-by-step explanation:

This is a vocabulary question. The angles named by the relationships A-E are angles that have the transversal as a common side. "Interior" and "exterior" refers to the space between the crossing lines, or outside the crossing lines, respectively. "Alternate" means the angles are on opposite sides of the transversal; "consecutive" means they are on the same side of the transversal.

Angles are "corresponding" if they are in the same direction from the point of intersection where the transversal crosses the two lines. The angles will be "consecutive", but one will be interior and the other will be exterior.

4. angle 9 is left of q, above r; angle 16 is right of q and below s, so these are alternate exterior angles, C.

__

5. angle 3 is below r and left of p; angle 5 is above s and left of p, so these are consecutive interior angles, D.

__

6. angle 7 is below s and left of p; angle 15 is below s and left of q, so these are corresponding angles, A.

__

7. angle 1 is above r and left of p; angle 10 is above r and right of q, so these are consecutive exterior angles, E.

__

8. angle 2 is above r and right of p; angle 11 is below r and left of q, so these are alternate interior angles, B.

__

9. angles 6 and 13 are above transversal s.

Answer: [tex]y=-\frac{5}{4} x+5[/tex]

Step-by-step explanation:

Please mark brainliest if this helped :)

Answer

the answer is y=2x-x

Answer:

(0,5)

(5/6,35/9)

Step-by-step explanation:

the awnser would be 24cm^2

Answer:

1.) SAS | 2.) HL | 3.) HL | 4.) SSS (Not too sure about this one)

Step-by-step explanation:

Answer:

8x + 12 = 12 + 8x

0 = 0

Step-by-step explanation:

Distribute then simplify

Answer:

0x=0

Step-by-step explanation:

8x+12=12+8x

-12     -12

_____________

8x=8x+0

-8x    -8x

_____________

0x=0

0=0

Hope this helps :D