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e-lub [12.9K]
3 years ago
14

Please help me... there will be 7 more questions where that came from

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0
168 students because 28% of 600 is 168.
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PLEASE HELP!!! Isabell needs to memorize words on a vocabulary list for Spanish class. She has memorize 12 of the words, which
valina [46]

Answer:

16

Step-by-step explanation:

3 x 4 = 12

4 x 4 = 16

7 0
3 years ago
Read 2 more answers
Determine the coordinates of the point on the unit circle corresponding to the given central angle. If necessary round your resu
Olenka [21]

Answer:

Option A. (-1, 0)

Step-by-step explanation:

In the figure attached,

Circle O is a unit circle (having radius r = 1 unit)

If a point A with central angles = θ, is lying on the circle then the coordinates of the point A will be,

x = r.cosθ

x = 1.cosθ = cosθ

and y = r.sinθ

y = 1.sinθ = sinθ

Therefore, coordinates representing the point A will be (cosθ, sinθ).

As per question the given point A is lying at P (a point having central angle θ = 180°)

Coordinates of point P will be

(x', y') → (cos180°, sin180°)

        → (-1, 0)

Therefore, Option A will be the answer.

3 0
3 years ago
I need help with this is 8th grade math
Tresset [83]

Answer:

5 hours

Step-by-step explanation:

Mark recieves 3mg per hour. This can be rewritten as y=3x. Cassie recieves 2x+5. To solve, use substitiution. 3x=2x+5. To solve, subtract "2x" from "3x." You then get x=5.

5 0
2 years ago
Read 2 more answers
1. A bag contains rubber bands with lengths that are normally distributed with a mean of 6 cm of length, and a standard deviatio
romanna [79]
Roughly 1.7 percent of the bands are shorter than 3cm. We calculate the z score of the data point in standard distribution. By definition of z score, we use score minus mean divided by standard deviation. z=(3-6)/1.5=-2. A z score of -2 corresponds to approximately 1.7%, in other words, roughly 1.7 percent of data is less than 3cm.
4 0
3 years ago
Solve R = <br> 1 + 3w/<br> 2<br> for w.
Georgia [21]

Answer:

R=7

Step-by-step explanation:

R=1+3w

This is a classic substitution question.

Just replace the w with 2.

R = 1+3(2)

You only need to multiply 3 with 2.

R = 1 + 6

R= 7

7 0
3 years ago
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