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2 years ago

13

When no unit is given for an angle, what unit must be used?

2 answers:

Pachacha [2.7K]2 years ago

7 0

I think you are looking for degrees.

Zinaida [17]2 years ago

4 0

If no unit is given for an angle, then degrees should be used. This is because usually most problems that involve angles don’t have a unit given, and most involve degrees. Hope this helps. Feel free to ask more questions!

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If Bianca is trying to find the area of this rectangle. She already measured one side 10cm. Witch other length(s) could she meas

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2 years ago

Gavin likes biking. He never misses a chance to go for a ride when the weather is nice. This week his goal is to bike about 65 t

andreyandreev [35.5K]

Answer:

How far should he ride on each of the four days to reach his goal?

1st day: $8$ miles

2nd day: $12$ miles

3rd day: $18$ miles

4th day: $27$ miles

Step-by-step explanation: As the problem says, $x$ is the number of miles he rides on the first day. Let's start off with that.

1st day: $x$ miles

He want to ride 1.5 times as far as he rode the day before... no 1.5 more, but 1.5 <em>times</em> as far as he rode the day before; you would multiply 1.5 with the previous day's length.

2nd day: $1.5x$

Then you multiply $1.5$ to $1.5x$ to get the third day's.

3rd day: $2.25x$

4th day: $3.375x$

----------------------------

Phew! Gavin wants to ride a total of 65 miles over these four days, so if Gavin added all the miles of the four days, he should get 65...

1st+2nd+3rd+4th=65

$x+1.5x+2.25x+3.375x=65$

$8.125x=65$

$\frac{8.125x}{8.125}=\frac{65}{8.125}$

$x=8$

Yes! Now that we've got the hard part done... substitute 8 for ever single $x$ .

1st day: $8$ miles

2nd day: $1.5(8)=12$ miles

3rd day: $2.25(8)=18$ miles

4th day: $3.375(8)=27$ miles

-------------------------

Checking my answer:

Just add the miles!

$8+12+18+27=65$

$65=65$

✓

-----------------------

Hope that helps! :D

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2 years ago

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Step-by-step explanation:

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2 years ago

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A

Step-by-step explanation:

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2 years ago

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For a particular clothing store, a marketing firm finds that 16% of $10-off coupons delivered by mail are redeemed. Suppose six

stich3 [128]

Answer:

The expected number of coupon is $E(X) = 1.6$

Step-by-step explanation:

From the question we are told that

The probability that a $10 coupons delivered by mail will be redeemed is p = 0.16

The sample size is n = 10

Generally the expected number of coupons that will be redeemed is mathematically represented as

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2 years ago