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2 years ago

Please help!!!!!!!!!!

Mathematics

1 answer:

Ostrovityanka [42]2 years ago

8 0

Using the together rate, it is found that it will take 18 hours for Erick to build the garden box himself.

<h3>What is the together rate?</h3>

The together rate is given by the sum of each separate rate.

In this problem, the rates are given as follows:

Eric's: 1/x.

Drew's: 2/x.

Together: 1/6.

Hence:

$\frac{1}{x} + \frac{2}{x} = \frac{1}{6}$

$\frac{3}{x} = \frac{1}{6}$

x = 18.

Hence, it will take 18 hours for Erick to build the garden box himself.

More can be learned about the together rate at brainly.com/question/25159431

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3 years ago

A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee

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Answer: A) 1260

Step-by-step explanation:

We know that the number of combinations of n things taking r at a time is given by :-

$^nC_r=\dfrac{n!}{(n-r)!r!}$

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Total open-ended problems=6

If an examine must answer 6 of the multiple-choice questions and 4 of the open-ended problems ,

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= $^9C_6=\dfrac{9!}{6!(9-6)!}=\dfrac{9\times8\times7\times6!}{6!3!}=84$

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= $^6C_4=\dfrac{6!}{4!(6-4)!}=\dfrac{6\times5\times4!}{4!2!}=15$

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Hence, the correct answer is option A) 1260

5 0

3 years ago

DUE NOW

I am Lyosha [343]

The answer of question no.1 and 2 is 1.

Well,the question of 1 and 2 are same.

Look at the attached picture

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Hope it helps...

Good luck on your assignment

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3 years ago

MODELING REAL LIFE A baseball is thrown up in the air. The table shows the heights $y$ (in feet) of the baseball after $x$ secon

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The equation for the path of the ball can be measured using a regression model calculator which produced the quadratic model ;

y(x) = - 16x² + 36x + 4
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The table given :

Time, x : __0.5 ___ 1 ____ 1.5 ____ 2

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Using technology such as a quadratic regression calculator or excel ;

The quadratic regression model obtained is :

y(x) = - 16x² + 36x + 4

The height after, 1.7 seconds, x = 1.7 can be calculated thus :

Put x = 1.7 in the equation :

y(1.7) = - 16(1.7)² + 36(1.7) + 4
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Therefore, the height of the baseball after 1.7 seconds will be 18.89 feets.

Learn more : brainly.com/question/22939512

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2 years ago

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Answer:

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3 years ago