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3 years ago

A line has a slope of -

Mathematics

2 answers:

Afina-wow [57]3 years ago

7 0

Answer:

(-8, 8) and (2, 2)

Step-by-step explanation:

Mice21 [21]3 years ago

3 0

Answer: (-8,8) (2,2) & (-2,1) (3,-2)

Step-by-step explanation:

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A circle has a diameter of 40 in. Find the circumference of the circle to the nearest tenth. Use 3.14 for pi .

Lesechka [4]

Answer:

126 inches

Step-by-step explanation:

C = 2π·r = π·d = 3.14×40in = 125.6 inches ≈ 126 inches

6 0

3 years ago

Evaluate the line integral, where c is the given curve. (x + 9y) dx + x2 dy, c c consists of line segments from (0, 0) to (9, 1)

viktelen [127]

$\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=\int_C\langle x+9y,x^2\rangle\cdot\underbrace{\langle\mathrm dx,\mathrm dy\rangle}_{\mathrm d\mathbf r}$

The first line segment can be parameterized by $\mathbf r_1(t)=\langle0,0\rangle(1-t)+\langle9,1\rangle t=\langle9t,t\rangle$ with $0\le t\le1$ . Denote this first segment by $C_1$ . Then

$\displaystyle\int_{C_1}\langle x+9y,x^2\rangle\cdot\mathbf dr_1=\int_{t=0}^{t=1}\langle9t+9t,81t^2\rangle\cdot\langle9,1\rangle\,\mathrm dt$
$=\displaystyle\int_0^1(162t+81t^2)\,\mathrm dt$
$=108$

The second line segment ( $C_2$ ) can be described by $\mathbf r_2(t)=\langle9,1\rangle(1-t)+\langle10,0\rangle t=\langle9+t,1-t\rangle$ , again with $0\le t\le1$ . Then

$\displaystyle\int_{C_2}\langle x+9y,x^2\rangle\cdot\mathrm d\mathbf r_2=\int_{t=0}^{t=1}\langle9+t+9-9t,(9+t)^2\rangle\cdot\langle1,-1\rangle\,\mathrm dt$
$=\displaystyle\int_0^1(18-8t-(9+t)^2)\,\mathrm dt$
$=-\dfrac{229}3$

Finally,

$\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=108-\dfrac{229}3=\dfrac{95}3$

5 0

3 years ago

Keke has 12 cups and 17 plates for a party how many cups does keke have

vodka [1.7K]

Im pretty sure that she has 12 cups.

4 0

3 years ago

Read 2 more answers

Graph the set of points. Which model is most appropriate for the set?

Tamiku [17]

Check the slope between the moving points

slope between (–6, –1) & (–3, 2) = 1 
slope between (-3, 2) & (–1, 4) = 1 
slope between (-1, 4) & (2, 7) = 1 

the points are collinear and make an angle of 45 degrees with the x-axis 

we can have an equation of a line passing through (-6,-1) and slope 1 as 

(y + 1) = 1(x + 6) 
y = x + 5 is your linear model mostly

6 0

3 years ago

please answer this with an explanation since my homework requires it thanks and I really appreciate it

cricket20 [7]

Answer:

Step-by-step explanation:

There are 5 students in each scenario, so we just add 5 and 5 together. The answer is 10.

I'm always happy to help :)

8 0

3 years ago

Read 2 more answers