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3 years ago

If a library has 3,000 nonfiction books how many books does it have in all?

Mathematics

2 answers:

kherson [118]3 years ago

8 0

There Are 129,864,880 Books in the Entire World.

Yuliya22 [10]3 years ago

3 0

Answer:

(3,002 joke answer) 3,000 books

Step-by-step explanation:

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Find a cartesian equation for the curve and identify it. r = 10 tan(θ) sec(θ)

Vilka [71]

For a cartesian equation
$x=r\cos\theta \ and \ y=r\sin\theta \\ \\ \cos\theta=\frac{x}{r} \ and \ \sin\theta=\frac{y}{r} \\ \\ \tan\theta=\frac{\sin\theta}{\cos\theta}=\frac{y}{r}\cdot\frac{r}{x}=\frac{y}{x} \\ \\ \sec\theta=\frac{1}{\cos\theta}=\frac{r}{x}$

Given r = 10 tan(θ) sec(θ)
$r=10\tan\theta\sec\theta=10\cdot\frac{y}{x}\cdot\frac{r}{x} \\ \\ \Rightarrow10y=x^2 \\ \\ \Rightarrow y= \frac{1}{10} x^2$

Therefore,the curve is a parabola opening upward with vertex (0, 0).

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3 years ago

Freyda has a circular rug with a radius of 120 centimeters. The fringe on the outside edge of the rug needs to be replaced. What

Gnom [1K]

Answer:

The Fringe of the rug is 754 cm.

Step-by-step explanation:

Given:

radius = 120 cm

We need to find the fringe of the outside rug.

Solution:

Since the rug is in the circular form.

We can say that fringe of the outside edge of the rug can be equal to circumference of the circle.

Then we will find the Circumference of the circle.

Circumference of the circle is given 2 times 'π' times radius 'r'.

framing in equation form we get;

Circumference of the circle = $2\pi r$

Circumference of the circle = $2 \times \pi \times 120 = 753.98 \approx 754\ cm$

Hence the Fringe of the rug is 754 cm.

8 0

2 years ago

School lunches cost ₱35.50 per week. about how much would 15.5 weeks of lunches cost?grade v

Goryan [66]

Answer:

₱ 550.25

Step-by-step explanation:

₱ 35.50 * 15.5 weeks = ₱ 550.25

5 0

2 years ago

Read 2 more answers

What is the slope of the line? 2x - 5y = 9 Choose 1 answers 5 2 O

Zepler [3.9K]

9514 1404 393

Answer:

D. 2/5

Step-by-step explanation:

The slope is the x-coefficient when the equation is solved for y.

2x -5y = 9 . . . . . . . given

-5y = -2x +9 . . . . . .subtract 2x

y = (-2/-5)x +9/(-5) . . . . divide by -5

y = 2/5x -9/5

The coefficient of x is 2/5. That is the slope of the line.

The slope is 2/5.

5 0

3 years ago

Solve the following equation for b. 1/2HB=d2

geniusboy [140]

Steps to solve:

1/2hb = d²

~Divide 1/2h to both sides

b = 2d²/h

Best of Luck!

6 0

2 years ago