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3 years ago

9

You and your friend volunteer for 120 hours. The ratio of hours you volunteered is 6 to 4. Use a tape diagram to find how many h

ours you volunteered

1 answer:

MAVERICK [17]3 years ago

3 0

Answer:

idk

Step-by-step explanation:

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To get to work, Marcus walks half a mile to the bus stop. The average bus speed is 30 mph, and Marcus rides the bus for 20 minut

dedylja [7]

Ten and a half miles, I believe.

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2 years ago

The question is in the picture (Alegbra 1)

olchik [2.2K]

Answer:

$\frac{s}{s + 3}$

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3 years ago

The mean salary of people living in a certain city is $37500 with a standard deviation of $1561. a sample of 33 people is select

Murrr4er [49]

The probability is 0.9671.

The z-score for this is given by

z = (x - μ)/(σ/√n)
z = (38000-37500)/(1561/(√33)) = 1.84.

Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of, less than, this is 0.9671.

8 0

3 years ago

I have no idea how to do this, it is due in two days. Hopefully someone sees this before then.

elena-14-01-66 [18.8K]

Hello,

$m\ \widehat{ABC}=x\\m\ \widehat{BAC}=2*x\\\\So:\\ x+2x=90^o\\x=30^o\\$

$cos(30^o)=\dfrac{\sqrt{3} }{2} \\$

In the triangle ABC,

$cos(30^o)=\frac{BC}{BA} \\\\BA=\dfrac{cos(30^o)}{BC} \\\\BA=\frac{\dfrac{\sqrt{3} }{2} }{24} =16*\sqrt{3} \\\\$

$sin(30^o)=\dfrac{1 }{2} =\dfrac{AC}{AB} \\\\AC=\dfrac{1}{2} *16\sqrt{3} =8\sqrt{3}$

In the triangle ACB,

$cos(30^o)=\dfrac{AC}{AL} \\\\AL=\dfrac{8\sqrt{3} *2}{\sqrt{3} } =16\\$

6 0

2 years ago

3. If a ladder is x feet long, how high up a wall can it safely reach?

sineoko [7]

Answer:

xsin∅

Step-by-step explanation:

If the ladder is <em>x foot long</em>, and it can safely make a <em>maximum angle ∅</em> with the floor, then, the maximum height it can reach will be xsin∅

6 0

3 years ago