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nata0808 [166]
3 years ago
13

If the point is on the unit circle, what is x?

Mathematics
1 answer:
lozanna [386]3 years ago
3 0

Answer:

1/2

Step-by-step explanation:

If y is the √3/2 on the unit circle, x must be either 1/2 or -1/2.

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PLEASE HELP,, MARKING BRAINLIEST!!!
KIM [24]

Answer:

A. Triangles are similar by AA similarity.

Step-by-step explanation:

By the Angle Angle Similarity Theorem, if two pairs of corresponding angles are congruent, then the triangles are similar.  As a given, Angle E is 35 degrees and Angle B is 45 degrees, which means that Angle R is 100 degrees; By definition, a triangle is 180 degrees in total.  Therefore, Angle R is congruent to Angle A.  Angles REB and AEZ are also congruent by the vertical angle theorem.  

In conclusion, triangles AEZ and REB are similar by the AA similarity theorem.

7 0
3 years ago
Sofia takes 10mg of a medicine whose concentration in blood decreases by a factor of one half every day. Let t be the number of
bazaltina [42]

Answer:  Medication in Lexi's system on day t becomes,

L=10.625(\frac{1}{2})^{t-4}

Step-by-step explanation:

Since we have given that

Initial amount Sofia takes of a medicine = 10 mg

Concentration in blood decreases by a factor of one half every day.

So, it becomes,

S=10(\frac{1}{2})^t\\\\here,\text{ t denotes number of days}

According to question, four days later, it becomes,

S=10(\frac{1}{2})^4\\\\S=\frac{10}{16}\\\\S=0.625\ mg

We have given that Lexi takes 10 mg of the same medicine.

So, it becomes,

10+0.625\\\\10.625\ mg

Hence, Medication in Lexi's system on day t becomes,

L=10.625(\frac{1}{2})^{t-4}

3 0
3 years ago
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A train travels 500 miles In 8 hours. Assuming that the train continues to travel at a constant rate, write an equation that rep
Xelga [282]

Answer:

y= 8x

Step-by-step explanation:

7 0
3 years ago
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Solve graph and write the solution to each inequality in interval notation <br> 1. |b+3|&gt;7
OleMash [197]
B+3> 7 and. b+3< -7
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b>4 and b<-10
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4 years ago
Suppose the temperature outside is dropping 3 degrees each hour. How much will the temperature change in 8 hours?
mamaluj [8]

Answer:

The temp will drop by 24 degrees in 8 hours

Step-by-step explanation:

6 0
3 years ago
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