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3 years ago

What is the area of 1 section of this circle?

Mathematics

1 answer:

Kruka [31]3 years ago

4 0

Answer:

144

Step-by-step explanation:

you take the area of the circle,,,

then you divide it by pi

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A quadrilateral is graphed in the coordinate plane below. Which classification best describes the quadrilateral (parallelogram,

Ahat [919]

Answer:

Trapezoid

Step-by-step explanation:

Given quadrilateral has vertices at points A(-2,-1), B(3,13), C(15,5) and D(13,-11).

Find slopes of lines AD and BC:

$\text{Slope}_{AD}=\dfrac{y_D-y_A}{x_D-x_A}=\dfrac{-11-(-1)}{13-(-2)}=\dfrac{-11+1}{13+2}=\dfrac{-10}{15}=-\dfrac{2}{3}\\ \\\text{Slope}_{BC}=\dfrac{y_C-y_B}{x_C-x_B}=\dfrac{5-13}{15-3}=\dfrac{-8}{12}=-\dfrac{2}{3}$

Since the slopes are the same, lines AD and BC are parallel.

Find slopes of lines ABD and CD:

$\text{Slope}_{AB}=\dfrac{y_B-y_A}{x_B-x_A}=\dfrac{13-(-1)}{3-(-2)}=\dfrac{14}{5}\\ \\\text{Slope}_{CD}=\dfrac{y_D-y_C}{x_D-x_C}=\dfrac{-11-5}{13-15}=\dfrac{-16}{-2}=8$

Since the slopes are different, lines AB and CD are not parallel.

This means quadrilateral ABCD is trapezoid (two opposite sides - parallel and two another opposite sides - not parallel)

7 0

3 years ago

what is a better buy, an 18 ounce jar of jelly that costs $1.99 or a 24 once jar of jelly that costs $2.99 why?

bezimeni [28]

Which is the better buy? Find unit rate for each price.

18 oz of jelly for $1.99.

1.99 ÷ 18 = 0.11
$0.11 per oz

24 oz of jelly for $2.99.

2.99 ÷ 24 = 0.12
$0.12 per oz.

24 oz ff jelly for $2.99 is the better buy because you save a cent on each oz of jelly! <span />

5 0

3 years ago

X - 2y = 7 and 2x + 5y = -4 sorry more help but i need x and y again

Luden [163]

Answer:

x = 3, y = -2

3 0

3 years ago

Read 2 more answers

Integral pls i couldnt

olga nikolaevna [1]

Simplify the integrand:

$\dfrac{4x^4 + 3x^2 + 5x}{x^2} = 4x^2 + 3 + \dfrac5x$

Now integrate one term at a time.

$\displaystyle \int 4x^2 \, dx = \frac43 x^3 + C$

$\displaystyle \int 3 \, dx = 3x + C$

$\displaystyle \int \frac5x \, dx = 5 \ln|x| + C$

Putting everything together,

$\displaystyle \int \frac{4x^4 + 3x^2 + 5x}{x^2} \, dx = \int \left(4x^2 + 3 + \frac5x\right) \, dx = \boxed{\frac43 x^3 + 3x + 5 \ln|x| + C}$

5 0

2 years ago

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Leokris [45]

Answer:

They make $14.98

Step-by-step explanation:

The distributor sells them at a cost of 42.80. This is before the profit, so there is no markup yet. multiply 42.80 by 0.35, because this is the profit margin. This will give the answer $14.98

4 0

3 years ago