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3 years ago

6

Please help me !!!!!!

1 answer:

LiRa [457]3 years ago

6 0

Answer:

200 step by step

Step-by-step explanation:

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1. The speed of a motorcycle increases from 10 km/hr to 50 km/hr in 9

liraira [26]

Answer:

The acceleration is 4.4 km/sec/sec

Step-by-step explanation:

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3 years ago

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A tire shop had to fill 2 1/2 tires with air. It took a small air compressor five minutes to fill them up. How long did it take

PSYCHO15rus [73]

Answer:

It took 2.5 (2 and a half) minutes to fill up one tire

Step-by-step explanation:

Hope this helps :)

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3 years ago

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If f(x) = 3x -2 and g(x).= 4x + 1.<br> what is the sum of f(2) and g(-3)

ira [324]

Answer:

The sum of f(2) and g(-3) is -7.

Step-by-step explanation:

f(x) = 3x - 2

f(2) = 3(2)-2

f(2) = 6 -2 = 4

g(x) = 4x + 1

g(-3) = 4(-3) +1

g(-3) = -12 + 1 = -11

f(2) + g(-3) = 4 + (-11)

f(2) + g(-3) = -7

5 0

3 years ago

12.4. Measure of Dispersion<br>2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.

Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given sample size 'n' = 5

Given data 4, 6,8,10,12

$Mean = \frac{4+6+8+10+12}{5} = 8$

Mean of the sample x⁻ = 8

Standard deviation of the sample

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

<u><em>Step(ii)</em></u>:-

Given data

x : 4 6 8 10 12

x-x⁻ : 4 - 8 6-8 8-8 10-8 12-8

(x-x⁻) : -4 -2 0 2 4

(x-x⁻)² : 16 4 0 4 16

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

$S.D = \sqrt{\frac{16+4+0+4+16}{4}}$

S.D = √10 = 3.16227

<u><em> Final answer</em></u>:-

The standard deviation = 3.16227

8 0

2 years ago

The school yard has an area of 3564 ft.² the section that is in the shape of a triangle is used for picnic tables what is the ar

kicyunya [14]

x × 44ft =3564

× = 81

area of the section for a picnic

= 1/2 × 44 × 81

= 1782 ft^2

8 0

3 years ago