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3 years ago

I NEED HELP, PLEASE!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

katrin [286]3 years ago

5 0

Answer:

-1.75 and 1.75.

Step-by-step explanation:

Absolute value is the value of a number, disregarding its sign. Absolute value will always be written as positive.

Examples:

The absolute value of 5 is 5.

The absolute value of -9836 is 9836. Not -9836, because absolute value will always be positive.

The absolute value of -2 is 2.

The absolute value of 87 is 87.

And, thus, the absolute value of -1.75 is 1.75, and so is the absolute value of 1.75. -1.75 will be in between -2 and -1.5. 1.75 will be in between 1.5 and 2.

umka2103 [35]3 years ago

4 0

1.75 itself and -1.75

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Elodia [21]

Answer:

h(t) = 4.68 seconds

Step-by-step explanation:

The function that represents the height of each firework in feet is :

$h (t) = -16t^2 + 150t + 10.5$ .....(1)

We need to find the time the fireworks take to reach their maximum height. For maximum height,

dh/dt = 0

So,

$\dfrac{d}{dt}(-16t^2 + 150t + 10.5 )=0\\\\-32t+150=0\\\\t=\dfrac{150}{32}\\\\t=4.68\ s$

Put t = 4.68 in equation (1).

$h (t) = -16(4.68)^2 + 150(4.68)+ 10.5\\\\h(t)=362.06\ text{feet}$

So, the fireworks will take 4.68 seconds to their maximum height.

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3 years ago

At a rate of 36 miles per hour, it takes Henry 15 minutes to drive from the library to his house. Show how to find the distance

EastWind [94]

This is applying the formula
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We have a slight problem, though, because we are measuring rate in miles per hour, and we are measuring time in minutes. To make this problem solvable, we need to convert to either miles per minute or convert the time to hours. I'm going to convert the 15 minutes into hours:
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Now that all of the units match, we have:
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You can finish from there I'm sure.

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3 years ago

What is the value of b

n200080 [17]

Angle = 68⁰ is an inscribed angles, this angle equal 68⁰,

so it intersect arc = 2*68⁰= 136⁰.

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Answer A. b=120⁰.

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4 years ago

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Mashutka [201]

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Step-by-step explanation:

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