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3 years ago

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Answer all parts in the question below. Be sure to show all your work. Remember NO WORK, NO CREDIT EVEN IF THE ANSWER IS CORRECT

!!!
13. A car travels 30 ⅕ miles in ⅔ of an hour. What is the average speed, in miles per hour, of the car?

1 answer:

liraira [26]3 years ago

3 0

I'm sorry I need the points lol anyways I hope you got the answer to it

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Alona [7]

Soln

here

weight = 30 kg

Force = weight × 10

= 30×10

= 300

Area = cm

= 100/100

= 1

now,

Pressure = Force/Area

= 300/1

= 300 pa.

3 0

2 years ago

What is the answer to this

lianna [129]

Answer:

Hi

Step-by-step explanation:

$v = \pi \: d \\ \\ v = 14 \times \pi = 14\pi \: cm$

in this formula

d is diameter

v is circumference

because the question asked the answer in terms of pi so we write the pi its self

hope this help you

god bless you and us

7 0

2 years ago

Please help!! i will give brainliest!!

ZanzabumX [31]

If it is 5ft a minute then it must be 10ft every two minutes

3 0

2 years ago

PLZZZZZZ HELP IM GIVING 20 BRAINLY

SpyIntel [72]

Answer:

4/5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A parabola can be drawn given a focus of

Volgvan

Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

Directrix of the parabola is $y=10$ .

Let $(x,y)$ be any point on the parabola. Then, from the definition of a parabola,

Distance of $(x,y)$ from focus = Distance of $(x,y)$ from directrix.

Therefore,

$\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|$

Squaring both sides, we get

$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$

Hence, the equation of the parabola is $y=-\frac{1}{4}(x-2)^{2}+9$ .

4 0

3 years ago