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Soloha48 [4]
3 years ago
8

PLEASE HELP

Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

3x^2=12 divide both sides by three

x^2=4 now find the square root of both sides

x=2

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enyata [817]
Given that <span>For a certain model of car the distance d required to stop the vehicle if it is traveling at v mi/h is given by the formula d=v+\frac{v^2}{20}, where [tex]d is measured in feet.

If Kerry wants her stopping distance not to exceed 75 ft, then the range of speeds (in mi/h) can she travel is obtained as follows:

v+ \frac{v^2}{20} \leq75 \\  \\ 20v+v^2\leq1,500 \\  \\ v^2+20v+100\leq1,500+100 \\  \\ (v+10)^2\leq1,600 \\  \\ |v+10|\leq\sqrt{1,600} \\  \\ -40\leq v+10\leq40 \\  \\ -40-10\leqv\leq v\leq40-10 \\  \\ -50\leq v\leq30

Therefore, the range of speed she can travel is v\leq30\ mi/hr
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8 0
3 years ago
How many pounds does 64 ounces weigh?
wel

Answer:

4 lbs

Step-by-step explanation:

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8 0
3 years ago
Two bicyclists were racing toward each other when they were 98 miles apart. Three hours later they did not meet yet and the dist
lesya [120]

Let, speed of 1st bicyclist is x.

So, speed of 2nd bicyclist is x-3 .

We know, relative speed when two objects moves towards each other :

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Now, distance travelled in 3 hours is (98-2) miles .

So,

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Hence, this is the required solution.

5 0
3 years ago
What is the answer for this ?
REY [17]

Answer:

A

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Step-by-step explanation:

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4 0
3 years ago
Joan buys cans of beans in bulk. She buys 3 cases of beans for a total of $23.15. Each case contains 6 cans of beans. Complete e
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that's the answer.
8 0
2 years ago
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