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3 years ago

How do you write an equation for a a line perpendicular to a line with only having the equation and not graphing?

Mathematics

2 answers:

slamgirl [31]3 years ago

8 0

Perpendicular lines gradients times to get -1 so you just use a line with any y intercept but the gradient must times with the gradient you already have to get minus one.

Arturiano [62]3 years ago

7 0

Put each formula in y=mx+b form, then find the inverse of m.
Ex:
1. x+y=2
y=x-2
the inverse of 1 is -1 so the perpendicular line would be y=-x-2

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A composite figure is formed from a cone and a cylinder with the same base radius, and its volume can be calculated by multiplyi

olga55 [171]

The composite figure comprises of a cone balanced on top of cylinder

Step-by-step explanation:

The composite figure is formed from a cone and a cylinder with the same base radius, Let the base radius be r

Then the volume of the cone will be $V_{cone}$

Then the volume of the cylinder will be $V_{cylinder}$

$V_{cylinder} = \pi r^{2} h_{cylinder}$

The total volume of the composite figure will be V, where

$V= V_{cone} + V_{cylinder}$

$V = \frac{1}{3} \pi r^{2} h_{cone} +\pi r^{2} h_{cylinder}$

let the height of cone and cylinder be same

The volume of the composite figure will be $\frac{4}{3} \pi r$ $r^{2} h$

Hence $\frac{4}{3} = \frac{a}{b}$

Thecomposite figure comprises of a cone balanced on top of cylinder

3 0

4 years ago

Find the function rule of the charts in the image below.

Mashutka [201]

Anarchie ist die richtige Antwort

6 0

3 years ago

Five less than area of a square is 59 square feet, find the side length of the square

Ne4ueva [31]

Answer:

8 ft

Step-by-step explanation:

Add back those 5 square feet and you find the area of the square to be 64 square feet. Its side length is the square root of that: 8 ft.

8 0

3 years ago

What is the mode of numbers 89 76 85 76 77 84?

kicyunya [14]

76 as it is the most frequent

3 0

3 years ago

A boat goes 3/4 hours with a speed of 8 mph and 1/3 hours with a speed of 12 mph. What distance did the boat cover in all this t

Reika [66]

Answer:

10 miles

Step-by-step explanation:

Given: Boat goes $\frac{3}{4}$ hours with 8 mph (i)

Boat goes $\frac{1}{3}$ hours with 12 mph (ii)

Now, lets find out distance separately to get total distance.

Formula for finding distance is

D= $Speed\times time$

D= $\frac{3}{4} \times 8$ (i)

D= $3\times 2$

∴ D1= 6 miles (i)

D= $\frac{1}{3}\times 12$ (ii)

∴D2= 4 miles (ii)

To find total distance, we will add d1 and d2

Total distance = $d1 + d2$

∴ Total distance = $6 + 4$

= 10 miles is the total distance covered by boat in all this time.

8 0

3 years ago