2 years ago

Simplify the expressions. 2 1/8 x+3/4 x+ 1/6 - 7/12x+5 2/3

Mathematics

1 answer:

pshichka [43]2 years ago

4 0

Answer:

Step-by-step explanation:

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Cindy shoots a bottle rocket straight up into the air such that its height h, in feet, at time t, in seconds, is given by the fu

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Answer:

t = [0.493,4.2]

Step-by-step explanation:

The height of the rocket straight up into the air is given by :

$h(t)=-16t^2+85t+5$

We need to find the interval the rocket be at least 43 feet above the ground.

$43\ge -16t^2+85t+5\\\\t\ge 0.493\ and\ t\le 4.82\ s$

So, the required interval during which the rocket is at least 43 feet above the ground is [0.493,4.2].

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An isosceles triangle has legs that measure 10 feet. If the height of the triangle is 7 feet, find the length of its base

irinina [24]

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Step-by-step explanation:

I rounded off to 1 decimal place

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541

Step-by-step explanation:

550-120+200-89=541

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3 years ago

What is 7a to the power of 2 - 2a to the power of 2

harkovskaia [24]

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Step-by-step explanation:

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Six groups sell a 162 balloons at the carnival. There are 3 students in each group. If each student sells the same number of bal

____ [38]

Answer:each student will sell 9 balloons.

Step-by-step explanation:

The total number of balloons sold by the six groups at the carnival is 162. There are 3 students in each group. This means that the total number of students in the six groups would be 6 × 3 = 18 students.

If each student sells the same number of balloons, then it means that the number of balloons that each student sells will be

162/18 = 9

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2 years ago