Mathematics College

A commuter train travels 49 miles in 45 minutes. What is its speed in miles per​ hour?

Answers

Answer 1

Answer:

65.3 km/hr

Step-by-step explanation:

49/45 x 60 = 65.3 km/hr

Answer 2

Answer:

★ The answer would be 0.02 MILES PER HOUR

Step-by-step explanation:

Hope you have a great day :)

Related Questions

I really need help omgggggggg

Answers

Answer:

The 3rd one  Abc is a congeuent

If a(x) = 3x + 1 and b(x)= VX-4, what is the domain of (bºa)(x)?
0 (-0,00)
0 (0.00)
O [1,00)
O [4,00)

Answers

The domain of [tex]b\,\circ \,a\,(x)[/tex] is [tex][1, +\infty)[/tex].

How to apply composition between functions

The composition of two functions consists in replacing the variable of the former function ([tex]b(x)[/tex]) by the latter function ([tex]a(x)[/tex]). If we know that [tex]b(x) = \sqrt{x-4}[/tex] and [tex]a(x) = 3\cdot x +1[/tex], then the composite function:

[tex]b\,\circ\,a \,(x) = \sqrt{(3\cdot x+1)-4}[/tex]

[tex]b\,\circ\,a\,(x) = \sqrt{3\cdot x-3}[/tex]   (1)

Since the composite function is a square root function, then the domain fulfill the following inequation:

[tex]3\cdot x -3 \ge 0[/tex]

[tex]x \ge 1[/tex]

Hence, the domain of [tex]b\,\circ \,a\,(x)[/tex] is [tex][1, +\infty)[/tex]. [tex]\blacksquare[/tex]

To learn more on functions, we kindly invite to check this verified question: https://brainly.com/question/5245372


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

Step-by-step explanation:

(1, 72) (2, 73)

(73 - 72)/(2 - 1)= 1/1= 1

y - 72 = x - 1

y = x + 71

A. Give two examples of addition of Like Fractions.

B. Give two examples of Subtraction of Like Fractions

C. Give three examples of multiplication of Fractions.

D. Give two examples of Addition of Unlike Fractions.

E. Give two examples of Division of Fractions.


IM GIVING BRAINLIEST AND 30 POINTS!!

Answers

Answer:

A: 3/5 + 2/5 = 5/5

A: 3/5 + 1/5 = 4/5

B: 3/5 - 2/5 = 1/5

B: 3/5 - 1/5 = 2/5

C: 3/5 x 2/5 = 6/25

C: 3/5 x 1/5 = 3/25

C: 2/5 x 1/5 = 2/25

D: 1/2 + 1/4 = 3/4

D: 4/5 + 4/10 = 6/5

E: 4/6 ÷ 2/6 = 2

E: 1/6 ÷ 1/6 = 1

Step-by-step explanation:

I NEED HELP WITH THIS​

Answers

Answer:

its A and C and D

Step-by-step explanation:

Please help with this problem

Answers

Answer:

Step-by-step explanation:

you can think they come in pairs :

3 crates and 5 boxes = 8 (crates +boxes)

40 (crates+ boxes) are maximum to be hold so we can have 40/8 = 5 such pairs

the truck can hold

3 *5 = 15 crates and 5 *5 =25 boxes

Answer :15 crates and 25 boxes

The radius of a circle is 3 yards. What is the circle's circumference?​

Answers

Answer:

18.85

Step-by-step explanation:

2(3.14)(3)

1. Find the unit rate per sandwich. Round to the
nearest hundredth if necessary: $210 for 50
sandwiches.

Answers

$4.2 because $210 dived by 59 is 4.2

Answer:

$4.20

Step-by-step explanation:

You take 210 and divide it by 50 and then it equals out to $4.20. Hope this helps! <3

A comedian is planning to make his show more appealing by telling three jokes at the beginning of each show. He has been booked in a bar for the next three months. If he gives one performance a night, and he never wants to repeat the same set of jokes on any two nights, what is the minimum number of jokes he needs to prepare?

Answers

Answer:

135 jokes

Step-by-step explanation:

3 months = 90 days

90/2 = 45 days of new jokes

45 days x 3 jokes per day = 135 jokes

Help due in 1o mins!!!

Answers

Answer:

c = 15

Step-by-step explanation:

The angles are4 a linear pair and are supplementary, so the sum of their measures is 180 deg.

7c - 7 + 6c - 8 = 180

13c - 15 = 180

13c = 195

c = 15

The answer should be 15.

Explanation:
The line equates to 180, so you would put both equations (7c-7 , 6c-8) together and equal it to 180°.
So, it would come out looking like this:
7c-7+6c-8=180.

You’d add 7c and 6c to get 13c, and then subtract -8 from -7 (-7-8) to get -15.
The equation would now look like this.
13c-15= 180.

You’d add 15 to 180 to get 195. Then, you’d divide 195 by 13 to get 15, which would mean c=15.

Find all real zeros of the function y=-9x-1
A. -9
B. 1/-9
C. 1/9
D. -9 -1
Please select the best answer from the choices proided

Answers

Answer:

OPTION D

Explanation:

For zeros of the function (y is the function, a function of x) we need y = 0 so that in turn means we need - 9x - 1 = 0 or - 9x = 1 (i.e. add 1 to both sides); now divide by - 9, and x = 1/-9 which is exactly the same as - 1/9 or - (1/9) and this is the only zero of the function.

or

If y = -9x - 1,

When y = 0

0 = -9x - 1

0 + 1 = -9x - 1 + 1

1 = -9x

1/9 = -9x/9

1/9 = -x

1/[9 X (-1)] = -x/-1

- (1/9) = x

When x = 0

y = (-9 X 0) - 1

y = 0 - 1

y = - 1

HL criteria of congruence can be used only with?

Answers

Answer: Right triangles or a hypotenuse and a leg

Please help me solve these questions

Answers

Answer: D

Step-by-step explanation:

√8=2√2

and i cant see the first problem

The sum of 4 consecutive odd integers is 40. Find the first number algebraically.

Answers

Step-by-step explanation:

2n+1+2n+3+2n+5+2n+7

8n+16=40

8n=40-16

8n=24

n=3

You have a bid of $250 per room for 180 guest rooms. You want to comp 12 rooms for the upcoming teacher convention. What is your average room rate across the paid and free rooms? Round to the nearest dollar.

a) $234
b) $244
c) $250
d) $254

Answers

Answer:

C

Step-by-step explanation:

needhelp

select the correct answer
what are the ratios equvialnt to each other
a 1:6 and 2:9
b 2 :23 and 4:8
c 1:64 and 4:16
d 1:16 and 4:64

Answers

D. 1:16 and 4:64 are equivalent
D. 4:64 simplified is 1:16 so they are equal

Simplify the following expression. 3 ^11/5 dived 3-^9/5

Answers

Answer:

81 is the answer cause u just have to aolve the 3^11^5 first ana comes and divide with the answer ot 3^-9/5.

The number of bacteria in a certain population increases according to a continuous exponential
growth model at a rate of 8.1% per hour. There are 1800 bacteria at t = 0.
Write an equation that gives the number of bacteria after t hours.

Answers

Answer:

Step-by-step explanation:

HELP ME DO THIS PROBLEM PLEASE PLEASE

Answers

Answer:

p=1

Step-by-step explanation:

5p=p+4

5p-p=4

4p=4

p=1

5p=5×1=5

p+4=1+4=5

p+16=1+16=17

17p=17×1=17

Somebody help me please I’m giving brainliest!

Answers

Answer:

98º

Step-by-step explanation:

ABCD is a rectangle. If AC = 2x + 10 and BD = 56, find the value of x.

Group of answer choices

33

23

78

122
Help!

Answers

9514 1404 393

Answer:

  (b)  23

Step-by-step explanation:

The diagonals of a rectangle are the same length, so ...

  AC = BD

  2x +10 = 56

  x +5 = 28 . . . . . divide by 2

  x = 23 . . . . . . . . subtract 5

What’s the a and b from the quadratic function

Answers

Answer: a=1 b=-4

Step-by-step explanation:

Apply the equation y= a^2+bx+c

Select the most specific name for the quadrilateral shown.
O parallelogram
O rhombus
O rectangle
square

Answers

Answer:

Square

Step-by-step explanation:

square - (geometry) a plane rectangle with four equal sides and four right angles

write a congruence statement for the figures below . pleeasse show your work ​

Answers

Answer:

[tex] \triangle FDE \cong \triangle RTS[/tex]

Step-by-step explanation:

[tex] In \:\triangle FDE \:\&\:\triangle RTS[/tex]

[tex] FD \cong RT... (given) [/tex]

[tex] \angle FDE \cong \angle RTS... (given)[/tex]

[tex] DE \cong TS... (given) [/tex]

[tex] \therefore \triangle FDE \cong \triangle RTS\\(by\: SAS\: postulate)[/tex]

ASAP: #43. Find the area of triangle ABC given A = 42.5°, b = 13.6, c = 10.1 (Draw a triangle, give answer to nearest tenth!)

Correct answer gets marked brainliest:)

Answers

Answer:

The area of a triangle  A = 46.399 square units

Step-by-step explanation:

Explanation:-

Given that ΔABC

Given ∠ A = 42.5° and sides b= 13.6 and c =10.1

The area of a triangle

                [tex]A = \frac{1}{2} b c sin A[/tex]

                [tex]A = \frac{1}{2} 13.6(10.1) sin 42.5[/tex]

                [tex]A = \frac{1}{2} 137.36(0.67559)[/tex]         (∵ sin (42.5)° = 0.67559

               A = 46.399 square units

QUESTION IN THE PHOTO

Answers

Answer:

ans is c

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Which of the following must be true if the triangles are congruent?
AB II DC
AB I BC
DB bisects ABC
None of the statements above must be true.

Answers

Answer:

Third option is the correct answer

Step-by-step explanation:

[tex] \overline {DB} \:bisects \:\angle ABC[/tex]

Let p: The kitchen is clean.
Let q: The bedroom is clean.
Which statement iS true if the kitchen is clean but the bedroom is not clean?
• If p is true, then q is true.
• Statement q if is true if and only if p is true.
• Both p and q are true.
• Statement p or q is true.

Answers

Answer:

the last one would be the answer as we know the kitchen is clean so it might be some if true

5.2 × _______ = 5.2 whats the answer

Answers

Answer:

1

Step-by-step explanation:

An equilateral triangle with side lengths of 10 units is translated 4 units to the right. What is the length of one side of the triangle
after translation, in units?

Answers

Answer:

43.301

Step-by-step explanation:

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