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3 years ago

In which quadrant does the point lie? Write the coordinates of the point.

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

6 0

The answer would be D

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The point P = (x, - 2/7) lies on the unit circle shown below. What is the value of x in simplest form?

miskamm [114]

Answer: $x = \frac{3\sqrt{5}}{7}\\\\$

Explanation:

The equation of the unit circle is $x^2+y^2 = 1\\\\$

Plug in y = -2/7 and solve for x

$x^2+y^2 = 1\\\\x^2+\left(-\frac{2}{7}\right) = 1\\\\x^2+\frac{4}{49} = 1\\\\x^2 = 1-\frac{4}{49}\\\\x^2 = \frac{49}{49}-\frac{4}{49}\\\\x^2 = \frac{45}{49}\\\\x = \sqrt{\frac{45}{49}} \ \ \text{ ... x is positive}\\\\x = \frac{\sqrt{45}}{\sqrt{49}}\\\\x = \frac{\sqrt{9*5}}{7}\\\\x = \frac{\sqrt{9}*\sqrt{5}}{7}\\\\x = \frac{3\sqrt{5}}{7}\\\\$

3 0

2 years ago

Kate hiked 14 miles in 6 hours.<br> Which rate represents the number of miles traveled per hour?

irinina [24]

Answer:

Step-by-step explanation:

To answer this, look at the form of the answer. they want miles per hour. So, just do that calculation

She traveled 14 miles in 6 hours.

14 miles/6 hours

14/6 = 7/3 = 2.3333 miles/hour

6 0

3 years ago

Please answer this correctly without making mistakes

Alex73 [517]

Answer:

i believe that would be 5t-8

Step-by-step explanation:

hopefully this helps :)

have a nice day !!

**please let me know if this was wrong**

8 0

3 years ago

9. Developing Proof Copy and complete the two-column proof.

goldenfox [79]

Answer:

try searching the answer up online!

Step-by-step explanation:

7 0

3 years ago

What is the lcm of 4 and 5

timama [110]

Answer:

Step-by-step explanation:

4 * 1 = 4 5 * 1 = 5

4 * 2 = 8 5 * 2 = 10

4* 3 = 12 5 * 3 = 15

4 * 4 = 16 5 * 4 = 20

4 * 5 = 20

they both go into 20 equally. there is no number lower than 20 that they both go into

8 0

2 years ago