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3 years ago

Question

Mathematics

1 answer:

liubo4ka [24]3 years ago

5 0

Answer:

(3,1) (3,-1) (-3,1) (-3,-1)

Step-by-step explanation:

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Graph the rational function f(x) = 2x+3 ——— X-4

igor_vitrenko [27]

Answer:

Step-by-step explanation:

6 0

2 years ago

Find x if Q is the midpoint of PR, PQ-19, and PR 8x + 14 a. 14. B7 C 3. D5

Sonja [21]

Answer:

Step-by-step explanation:

If Q is the midpoint of PR and PQ is 19, that means that QR is also 19 and the total length of PR is 38. Therefore,

PQ + QR = PR and

19 + 19 = 8x + 14 and

38 = 8x + 14 and

24 = 8x so

x = 3

Your choice is C

3 0

3 years ago

Philip buys the pizza shown below: A circular pizza is shown. The center is labeled as point A and a point on the circumference

sattari [20]

Well because the line segment runs from the center of the circle to a point on the circumference, AB would represent the radius.

8 0

4 years ago

What is the 45th digit in the decimal equivalent of 1/7

Luden [163]

1/7 = 0.142857 since this decimal is repeating divide 45/6(number of repeating numbers) and it gives you 7.5 so you know that it repeats this sequence 7 times plus an extra 3 numbers so the 45th decimal is 2

3 0

3 years ago

Please help me thank you!!!

kow [346]

There are two acceptable ways of solving this. I'll show both (just in case one of them doesn't align with the information from your textbook).

Option 1 (fast and easy):

The following is the equation for the area of a regular pentagon with side length s.

$A= \dfrac{s^2}{4} \times \sqrt{5(5+2\sqrt{5})}$

Plug s=12 into the equation.

$A= \dfrac{12^2}{4} \times \sqrt{5(5+2\sqrt{5})}$

$\approx 247.7$

The third choice should be your answer.

Option 2 (much more complicated):

The area of a regular polygon can be solved with the following formula.

$A=\dfrac{\text{perimeter} \times \text{apothem}}{2}$

Let's solve for the apothem.

A pentagon can be divided into 5 congruent isosceles triangles. The vertex angle will be 360/5, or 72 degrees.

An isosceles triangle can be divided into two right triangles. One of the angles of the right triangle will be 72/2, or 36 degrees.

The leg opposite of the 36 degree angle will be 12/2, or 6 inches long.

$\text{apothem}=\dfrac{6}{\tan{36}}$

$\approx 8.26$

The apothem is about 8.26 inches.
The perimeter is 12*5, or 60 inches.

$A=\dfrac{\text{perimeter} \times \text{apothem}}{2}$

$=\dfrac{60 \times 8.26}{2}$

$\approx 247.8$

(it seems that we're off by 0.1 due to rounding errors)

The answer is the third choice. Hope this helps! :)

4 0

4 years ago