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2 years ago

A car is travelling at 40 mph How long will it take this car to travel 130 miles?

Mathematics

1 answer:

Likurg_2 [28]2 years ago

3 0

Answer:

3.25 hours

Step-by-step explanation:

if the car is going 40mph then devide 130 by 40 to get the amount of time. that's how I was taught in school, sorry if it's wrong.

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Obtuse angles measure greater than 90 degrees

Harman [31]

yes obtuse angles measure over 90 degrees and less 180 degrees

4 0

3 years ago

The prism has a volume of 120 cm3. What would the volume of the prism be if each dimension were halved? cm3 Triangular prism wit

Citrus2011 [14]

The volume of a triangular prism is V = 1/2 x a x c x h where a is height of the triangle, c is the base of the triangle and h is the height of the prism.
120 = 1/2 x a x c x h; we write a from the previous equation in terms of c and h thus,
a = 240 / ( c x h)
If the dimensions where halved then a = a/2 ; c = c/2 ; h=h/2
We use the volume formula again and substitute the given values to find the new volume,
V = 1/2 x a/2 x c/2 x h/2
Substitute the previously determined a term,
V = 1/2 x (240/2ch) x c/2 x h/2
We cancel and evaluate the constants therefore the new volume is,
V= 15 cm^3

3 0

3 years ago

What is h(-2)<br> H(-1.75)<br> H(1)

ruslelena [56]

$h(x)=\left\{\begin{array}{cccc}-2&if&-2\leq x$

3 0

3 years ago

In the game of Keno, a player starts by selecting 20 numbers from the numbers 1 to 80. After the player makes his selections, 20

DiKsa [7]

The percentage of winning if 20 winning numbers are randomly selected from numbers 1 to 80 is 12.48%.

Given There are 80 numbers from which 20 numbers are selected randomly in a game of Keno by player and after selection of 20 winning numbers again 20 numbers are selected and player wins if the player has correctly selected 3,4,or 5 of the 20 winning numbers.

Probability is the chance of happening an event among all the events possible.

Probability of winning is calculated as under:

Probability= $C(20,3)C(60,17)/C(80,20)$

We have taken C(20,3) because player will win if 5 numbers are selected from 20 winning numbers.

We have taken C(60,17) because after selection of 20 numbers 60 numbers will left from 80 and after winning from 3 numbers 17 numbers left and from total 80, 20 numbers are taken.

=C(20,3)C(60,17)/C(80,20)

=(20!/3!17! * 60!/17!43!)/80!/20!60!

=1140*387221678682300/35353161422121743200

=12.48%

Hence the probability of winning is 12.48%.

Learn more about probability at brainly.com/question/24756209

#SPJ4

5 0

2 years ago

Please need help on this

zimovet [89]

Answer:

7047, people/km^2

Step-by-step explanation:

To find the answer, you would need to divide the numbers 8550405(people) and 1213.4(kilometers) <--- which where this came from.

Once you divide those numbers, you will directly get the number 7047 as your answer.

<h2>Please Mark me as brainly! Thank You!</h2>

4 0

3 years ago