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Oxana [17]
3 years ago
6

Ill give you brilliant

Mathematics
2 answers:
o-na [289]3 years ago
3 0
Answer: D. Between 80 and 90 kilometers per hour


Explanation: All you have to do is multiply 1.57 x 55 (which equals 85.35). Not to be mean but all you have to do is read the answer carefully :)
slavikrds [6]3 years ago
3 0
D. between 80 and 90 km per hour

why?
when you convert the speed from miles per hour to kilometers per hour we see it is equal to around 85 kilometers. this number falls right between the last options range of 80-90 km per hour
Hope this helped!!
You might be interested in
A cylindrical roller 2.5 m in length, 1.5 m in radius when rolled on a road was found to cover the area of 16500 m2 . How many r
eduard

Answer:

701 revolutions

Step-by-step explanation:

Given: Length= 2.5 m

            Radius= 1.5 m

            Area covered by roller= 16500 m²

Now, finding the Lateral surface area of cylinder to know area covered by roller in one revolution of cylindrical roller.

Remember; Lateral surface area of an object is the measurement of the area of all sides excluding area of base and its top.

Formula; Lateral surface area of cylinder= 2\pi rh

Considering, π= 3.14

⇒ lateral surface area of cylinder= 2\times 3.14\times 1.5\times 2.5

⇒ lateral surface area of cylinder= 23.55 \ m^{2}

∴ Area covered by cylindrical roller in one revolution is 23.55 m²

Next finding total number of revolution to cover 16500 m² area.

Total number of revolution= \frac{16500}{23.55} = 700.6369 \approx 701

Hence, Cyindrical roller make 701 revolution to cover 16500 m² area.

8 0
3 years ago
Brain is skateboarding at 8 kilometers per hour. How long will it take Brain to travel 12 kilometers?
Vladimir [108]

Answer:

1.5 hours

Step-by-step explanation:

All you do is divide the speed by the distance 12/8=1.5 simple as that

Would be amazing if you marked me brainliest :)

8 0
2 years ago
PLEASE HELP WITH THIS I HAVE NO IDEA HOW TO SOLVE!!!!
VARVARA [1.3K]
Write the vertex form of the equation and find the necessary coefficient to make it work.
.. y = a*(x +3)^2 -2
.. = ax^2 +6ax +9a -2

You require the y-intercept to be 7. So, for x=0, you have
.. 9a -2 = 7
.. 9a = 9
.. a = 1

The equation you seek is
.. y = x^2 +6x +7

4 0
2 years ago
Slope from two points: (4, 4) and (7, -2)
BaLLatris [955]

Answer:

2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Write 103727495 in word form
OLga [1]
One hundred and three million, seven hundred and twenty-seven thousand, four hundred and ninety five.
8 0
3 years ago
Read 2 more answers
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