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3 years ago

Given the points (3, -1) and (-10, 9) find the slope.

Mathematics

2 answers:

netineya [11]3 years ago

8 0

Answer:

Step-by-step explanation:

(9+1)/(-10-3)= -10/13

givi [52]3 years ago

3 0

First, let's label each coordinate of the points with x1, y1 and x2, y2

Our first point: (3, -1). 3 is x1 and -1 is y1

Our second point: (-10, 9). -10 is x2 and 9 is y2.

Slope = (y2 - y1) / (x2 - x1)

Let's plug our values into the slope formula above.

Slope = (9 - (-1)) / (-10 - 3) = 10/-13 or -10/13

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Find the length of a square whose diagonal is 15cm

Vladimir [108]

2a^2 = 225
So a^2 = 225/2

4 0

2 years ago

the radius of wheel of a bicycle is 40 cm. taking pie =3.14, a)find tthe circumference of the wheel.b) find the distance covered

monitta

Answer:

a)=251.2 cm b)=50240 cm

Step-by-step explanation:

a) The formula for calculating the circumference of a circle is c=d*pie, where D is the diameter of the circle.

Therefore, C = 2 * 40 * 3.14 = 251.2 cm

b) The distance covered by 200 revolutions of the wheel is 200 times the circumference, 200*251.2=50240 cm.So to think about this we can assume that there is a point A on the wheel, the distance that point A travels when it rotates 200 times.

6 0

3 years ago

Evaluate the variable expression when a=-4, b=2, c=-3, and d =4. b-3a/bc^2-d

gtnhenbr [62]

Answer:

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

$\dfrac{b-3a}{bc^{2}-d}=1$

Step-by-step explanation:

Evaluate:

$\dfrac{b-3a}{bc^{2}-d}$

When a=-4, b=2, c=-3, and d =4

Solution:

Substitute, a=-4, b=2, c=-3, and d =4 in above expression we get

$\dfrac{b-3a}{bc^{2}-d}=\dfrac{2-3(-4)}{2(-3)^{2}-4}\\\\=\dfrac{2+12}{18-4}\\\\$

$\dfrac{b-3a}{bc^{2}-d}=\dfrac{14}{14}=1$

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

$\dfrac{b-3a}{bc^{2}-d}=1$

6 0

3 years ago

the cost of an ice cream sundae is 4.75$ plus 30 cents per topping. megan spends $6.26 on her sundae how many toppings did he ge

alexgriva [62]

Answer:

Step-by-step explanation:

$4.75 + 0.3x = $6.26

0.3x = 1.51

x = 5.033

4 0

3 years ago

Lance baked a pie Justin ate 2/3 of the pie and Joey ate 1/4 of the pie how much of the pie is left

zepelin [54]

1 - 2/3 - 1/4
= 1 - 8/12 - 3/12
= 1/12

8 0

2 years ago