3 years ago

The function f(x) = -5x2 + 13x + 6 represents the height, in meters, of a

Mathematics

1 answer:

AnnZ [28]3 years ago

8 0

Answer:

Step-by-step explanation:

Differentiate the function and set it to zero:

f'(x) = -10x + 13

0 = -10x + 13

x = 1.3 seconds

Plug the x value into f(x):

f(1.3) = -5(1.3)^2 + 13(1.3) + 6 = 14.45 meters

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Step-by-step explanation:

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3 years ago

A light bulb consumes 1440 watt-hours per day. How long does it take to consume 6480 watt-hours?

melisa1 [442]

The number of days it will take to consume the given power = 4.5 days

<h3>Calculation of energy consumption</h3>

The amount of power consumed per day = 1440watt-hours

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Make X the subject formula;

X = 1 × 6480/1440

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2 years ago

What are two multiplication digits that equal to 3030

xz_007 [3.2K]

So x times y=3030
x and y=unknown
find the factors (factors of 6=2 and 3)
3030=2,3,5,101 so
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5 times 606
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202 times 15
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3 years ago

Elijah's father is 47. He is 17 years older than twice Elijah's age. How old is Elijah?

ch4aika [34]

Answer:

let Elijah age be a

Then

2*a + 17 =47

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A rectangle measured 2 ⅔ inches by 1 5/9 inches what is its area

andre [41]

Answer:

4 4/27 sq inches

Step-by-step explanation:

the area is 2⅔ × 1 5/9 = 8/3 × 14/9

= 112/27 = 4 4/27

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3 years ago