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3 years ago

One way to increase acceleration is by

Mathematics

1 answer:

Arlecino [84]3 years ago

4 0

Answer:

D. Increasing both force and mass equally

Step-by-step explanation:

I had a question just like this and I answered it correctly, so I hope this helps.

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Help me to do 10(b) answer

antiseptic1488 [7]

Answer:

Step-by-step explanation:

Big circle:

R = radius = diameter ÷2 = 42 ÷ 2 = 21 cm

Area of big circle= πR²

$=\dfrac{22}{7}*21*21=22*3*21\\\\\\= 1386 \ cm^{2}$

Small circle:

Diameter of small circle = radius of big circle = 21 cm

r = 21/2 = 10.5 cm

Area of small circle = πr²

$=\dfrac{22}{7}*10.5*10.5 = 22 * 1.5*10.5\\\\\\= 346 .5 \ cm^{2}$

Area of shaded region = area of big circle - area of small circle

= 1386 - 346.5

= 1039.5 cm²

3 0

2 years ago

Kevin is an auto mechanic. He spends 2 hours when he replaces the shocks on a car and 2 hours when he replaces the brakes. He wo

mr Goodwill [35]

Answer:

Kevin should do 21 shock replacements and 6 brake replacements every week to maximize his weekly income.

Step-by-step explanation:

Since either job takes 2 hours to complete, the total number of jobs that Kevin can complete working 54 hours a week is:

$n=\frac{54}{2}\\n=27\ jobs$

Since replacing shocks gives him a greater income, he should aim to do as little break replacements as possible and as many shock replacements as possible in order to maximize income.

If he has to complete at least 6 break replacements out of the 27 jobs possible, the number of shock replacements he should do is:

$S=27-6\\S=21$

Kevin should do 21 shock replacements and 6 brake replacements every week to maximize his weekly income.

5 0

3 years ago

Mrs brown wants to cook 5 dishes on a stove with 2 burners. The times she needs to cook each dish are 40min,15min,35min,10min an

Sphinxa [80]

Answer:

75 minutes

Step-by-step explanation:

First cook 40 and 45 min dishes on separate burners. Then after 40 min put 35 min dish to be cooked on that burner. This will take 75 minutes time.

On second burner put firstly 15 min and then 10 min dish or vice versa as it doesn't matter. This second burner will take 70 minutes which is less then first one.

8 0

3 years ago

Which inequality is false?

snow_lady [41]

The false inequality is D
because -8 is smaller than -1 .

6 0

3 years ago

A colony of bees have produced about 4 oz of honey. Some time later they have about 7oz of honey. If the bees produce at a rate

yanalaym [24]

It took 50 hours to produce 3 oz of honey.

<u>Step-by-step explanation:</u>

Rate of production= 1.5% per hour

Initial amount of honey = 4 oz

Final amount of honey = 7 oz

Honey produced = 3 oz

Amount produced = (initial amount x rate x time) /100

3 = (4 x 1.5 x t) /100

300 = 6t

t = 300/6

t = 50 hours

It took 50 hours for the bees to produce 3 oz of honey.

5 0

3 years ago