2 years ago

The bus travels 35 blocks in 7 minutes . If the bus travels at a constant speed , how long will it take to travel 50 blocks ?

Mathematics

1 answer:

Mademuasel [1]2 years ago

6 0

Answer:

10 min

Step-by-step explanation:

35/7=5 blocks in 1 min

50/5=10

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PLZ just do it :( 20 points???

Sedaia [141]

The answer would be A, it has no solution

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3 years ago

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A force of 84N is applied to an area of<br> 15cm". Work out the pressure in N/cm².<br> cm3)

Tcecarenko [31]

Answer: 5.6 N/cm^2

============================================

Work Shown:

Pressure = (Force)/(Area)

P = F/A

P = (84 N)/(15 cm^2)

P = (84/15) (N/cm^2)

P = 5.6 N/cm^2

For every square cm, 5.6 newtons of force is applied.

-------------

Extra info:

If you wanted to convert this to pascals, then you would need to convert 15 cm^2 to 0.0015 square meters. Then apply the formula above to get 56,000 pascals. 1 pascal is equivalent to 1 N/m^2.

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2 years ago

What are the real zeroes of x3 + 6 x2 – 9x - 54?

o-na [289]

Answer:

Option B 3,-3,-6 is correct.

Step-by-step explanation:

We need to find real zeroes of $x^3+6x^2-9x-54$

Solving

$x^3+6x^2-9x-54\\=(x^3+6x^2)+(-9x-54)$

Taking x^2 common from first 2 terms and -9 from last two terms we get

$=(x^3+6x^2)+(-9x-54)\\=x^2(x+6)-9(x+6)\\$

Taking (x+6) common

$(x+6)(x^2-9)\\$

x^2-9 can be solved using formula a^2-b^2 = (a+b)(a-b)

$=(x+6)((x)^2-(3)^2)\\=(x+6)(x+3)(x-3)$

Putting it equal to zero,

$(x+6)(x+3)(x-3) =0\\x+6 =0, x+3=0\,\, and\,\, x-3=0\\x=-6, x=-3\,\, and\,\, x=3$

So, Option B 3,-3,-6 is correct.

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2 years ago

The spring of a dart gun exerts a force on a 0.02 kg dart as it launched from the gun at 20 m/s. What is the dart ke

seraphim [82]

Answer: The dart comes out at 20.00 m/s.

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2 years ago

What is 2/3 divided by 4/5

artcher [175]

Answer:

5/6

Step-by-step explanation:

$\frac{2}{3}$ divided by 4/5 can be written as 2/3 times 5/4

2/3 *5/4=10/12=5/6

4 0

3 years ago

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