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3 years ago

$3.00 is ____ % of $1.80

1 answer:

3 0

Set the ratio of $3.00 to %1.80 equal to x/100 in which x is the percentage out of 100%..

3/1.80 = x/100

Cross multiply and solve for x.

300 = 1.8x

x = 166.67%

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The angle measures associated with which set of ordered pairs share the same reference angle? (Negative StartFraction StartRoot

Katarina [22]

Answer:

$(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

Step-by-step explanation:

The reference angle is the angle that the given angle makes with the x-axis.

For an ordered pair to share the same reference angle, the x and y coordinates must be the same or a factor of each other.

From the given options:

$(A)\left(-\dfrac{\sqrt{3} }{2} ,-\dfrac{1 }{2}\right)$ and \left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)\\\\(B)\left(\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(-\dfrac{\sqrt{3} }{2}, \dfrac{1 }{2}\right)\\\\(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)\\\\(D)\left(\dfrac{\sqrt{3} }{2},\dfrac{1 }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

We observe that only the pair in option C has the same x and y coordinate with the second set of points being a negative factor of the first term. Therefore, they have the same reference angle.

5 0

3 years ago

Read 2 more answers

A man drove his car a distance of 366 miles in 6 hours. If continuing at this rate is possible, he will travel ______ miles in 7

Anettt [7]

ANSWER: 427 miles
Okay so you have to divide 366 by 6 to see how many miles he drives each hour.
explanation:
366 / 6 = 61
He drove 61 miles each hour.
now they want to know how many miles he drove when he reached 7 hours.
so add 366 and another 61 miles for another hour.
366 + 61 = 427
He will travel 427 miles in 7 hours.

3 0

3 years ago

Read 2 more answers

I'm kind of confused on what I got wrong on this math question....can someone plz explain

skelet666 [1.2K]

(2x - 8) - (4x + 8)

first look at the x

2x - 4x = -2x

-2x is left over

then look at the numbers

8 - (-8)

in the case of having two negatives, it becomes positive, and so it is really 8 + 8

8 + 8 = 16

-2x - 16 is your answer

hope this helps

4 0

4 years ago

Read 2 more answers

An airline estimates that 94% of people booked on their flights actually show up. If the airline books 68 people on a flight for

Setler79 [48]

Answer:

0.0788

Step-by-step explanation:

In this case the final probability will be the sum of the probability of when there are 67 more reserves when there are 68.

That is to say:

P (f) = P (x = 67) + P (x = 68)

n = 68; p = 0.94

Now we calculate each one:

P (x) = nCx * (p ^ x) * [(1 - p) ^ (n-x)]

nCx = n! / (x! * (n - x)!)

Knowing the formula, we replace:

P (67) = 68C67 * (0.94 ^ 67) * [(1 - 0.94) ^ (68-67)]

nCx = 68! / (67! * (68 - 67)!) = 68! / 67! = 68

P (67) = 68 * (0.0158) * (0.06) = 0.064

Now for x = 68

P (68) = 68C68 * (0.94 ^ 68) * [(0.0641 - 0.94) ^ (68-68)]

nCx = 68! / (68! * (68 - 68)!) = 1

P (68) = 1 * (0.0148) * (1) = 0.0148

Then replacing in the main formula:

P (f) = P (x = 67) + P (x = 68)

P (f) = 0.064 + 0.0148

P (f) = 0.0788

8 0

3 years ago

Why do I have to watch an ad just to be told that I have to pay for brainly...

Nina [5.8K]

Answer:

Money

Step-by-step explanation:

Ads help provide money for the company.

HOPE THIS HELPED

8 0

4 years ago