3 years ago

Can someone help me !

Mathematics

1 answer:

Aneli [31]3 years ago

8 0

Answer:

with what <em>thigguyfgghiufguuyftuff6itry</em>

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Keegan jogs laps around a park playground. The playground is 90m long and 35m wide. How many laps will it take him to jog 1 km?

VMariaS [17]

It will take 3 laps. 90*35=3150 1000 m = 1 km

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3 years ago

Henry says he can write an 8 in each box to make both equations true. Is he correct?

Rama09 [41]

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yes it's true because 3 groups of 8 is 24

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3 years ago

HELP ASAPPPPPPPPP ILL MARK BRAINLIEST

pogonyaev

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the answer would be C

Step-by-step explanation:

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3 years ago

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A bag contains 15 marbles. The probability of randomly selecting a green marble is 1/5. The probability of randomly

meriva

Answer:

Step-by-step explanation:

well if you get all of the fractions into percentage form they will be 20%for green 8% for blue so in turn it would mean 8% of 15 is 2

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3 years ago

To two decimal places, find the value of k that will make the function f(x) continuous everywhere. f of x equals the quantity 3x

Fiesta28 [93]

Given function is

$f(x)=\left\{\begin{matrix}3x+k & x\leq -4 \\ kx^2-5 & x> -4\end{matrix}\right.$

now we need to find the value of k such that function f(x) continuous everywhere.

We know that any function f(x) is continuous at point x=a if left hand limit and right hand limits at the point x=a are equal.

So we just need to find both left and right hand limits then set equal to each other to find the value of k

To find the left hand limit (LHD) we plug x=-4 into 3x+k

so LHD= 3(-4)+k

To find the Right hand limit (RHD) we plug x=-4 into

$kx^2-5$

so RHD= $k(-4)^2-5$

Now set both equal

$k(-4)^2-5=3(-4)+k$

$16k-5=-12+k$

$16k-k=-12+5$

$15k=-7$

$k=-\frac{7}{15}$

k=-0.47

<u>Hence final answer is -0.47.</u>

7 0

3 years ago