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2 years ago

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Mathematics

1 answer:

Marina CMI [18]2 years ago

4 0

Answer:

26414 gallons

Step-by-step explanation:

94x281=26414

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Find the length of AB?

vampirchik [111]

Given:

The figure of a right triangle.

To find:

The length of AB.

Solution:

In a right angle triangle,

$\cos \theta=\dfrac{Base}{Hypotenuse}$

Using this trigonometric ratio for the given triangle, we get

$\cos A=\dfrac{AB}{AC}$

$\cos (60^\circ)=\dfrac{AB}{10}$

$\dfrac{1}{2}=\dfrac{AB}{10}$

$\dfrac{1}{2}\times 10=AB$

$5=AB$

Therefore, the length of AB is 5 units.

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3 years ago

Help me with number 3 please

Harlamova29_29 [7]

The answer would be 22%

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2 years ago

Fifteen minus three to the power of two

Stells [14]

Your first answer is correct but I’m not sure if your second is. But I’m leaning towards it is not correct.

Hope this helps!

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2 years ago

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John took 3 exams so far this semester. He scored 45, 65 and 80 on those 3 exams . What score does he need on the fourth exam to

Olegator [25]

Answer:

$He \: needs \: to \: score \: 90 \: or \: more$

Step-by-step explanation:

$\frac{x + 45 + 65 + 80}{4} \geqslant 70\Leftrightarrow x + 190 \geqslant 280\Leftrightarrow x \geqslant 90$

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3 years ago

4.4.3 Quiz: Independence

lbvjy [14]

Answer:

$\frac{2}{15}$

Step-by-step explanation:

<h2><u>Lesson : Probability</u></h2><h2><u></u></h2>

We have a bag with 4 white chips and 6 black chips
Question : What is the probability of randomly choosing a white chip, not replacing it, and then randomly choosing another white chip?

4 white and 6 black

4 + 6 = 10

Choosing the first white chip : $\frac{2}{5}$