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3 years ago

15

Mr. Stanford has a class of 6 girls and 9 boys. If he randomly chooses a student to do an errand what is the probability he choo

ses a boy

1 answer:

lesya692 [45]3 years ago

8 0

Answer:

50%

Step-by-step explanation:

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The distance d of a particle moving in a straight line is given by d(t) = 2t^3 + 5t – 2, where t is given in seconds and d is me

Amanda [17]

Answer: 299 m/s

Step-by-step explanation:

The first step is to take the first derivative of the equation given. This will give us the equation for velocity which we will then substitute the 7 in for t.

To derive the equation you multiply the coefficient by the power of the variable, then subtract one from the variable.

v(t) = 6t^2 + 5

Now input 7 in for t to find the velocity.

v(7) = 6(7)^2 + 5

v(7) = 299 m/s

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3 years ago

work out the circumference of this circle take pie to be 3.142and give your number to 1 decimal place and the radius is 11.2cm

harina [27]

Circumference is 2*pi*r
2 * 3.142 * 11.2 = 70.3808, to 1 decimal place is 70.4cm^2

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A line has a slope of –3 and a y-intercept of (0, –1). What is the equation of the line that is parallel to the given line and p

elena-s [515]

The equation of the parallel line is y= -3x -3

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3 years ago

Three hikers are dividing the costs of a hiking trip evenly. They bought two permits that cost $15 each, three tram tickets that

cestrela7 [59]

Each hiker owes $41 or 4100 cents for the hiking trip.

<u><em>Explanation</em></u>

Cost of each permit is $15. So, the cost of <u>two permits</u> will be: $(\$15*2)= \$30$

Cost of each tram ticket is $19. So, the cost of <u>three tickets</u> will be: $(\$19*3)=\$ 57$

Cost of <u>one can</u> of bear spray is $36.

So, the total cost of the hiking trip $=\$30+\$57+\$36=\$123$

As the <u>three hikers</u> are dividing the total costs of the trip <u>evenly</u>, so each hiker owes $=\frac{\$123}{3}=\$41$ or 4100 cents.

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3 years ago

Which of the following is the solution to the inequality -2x-4 ≤ 11

Art [367]

Answer:

$x\geq -\frac{15}{2}$

Step-by-step explanation:

add 4 on both sides

leaves you with 15 on the right side

you then divide by negative 2

since you divide by a negative you have to switch the sign

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3 years ago

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