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3 years ago

Linear equation for passing through (-3,5) & perpendicular to y=-1/2x -3

1 answer:

soldier1979 [14.2K]3 years ago

5 0

The perpendicular slope is the negative reciprocal of the slope of the line it is perpendicular to. Therefore, the slope would be the negative reciprocal of -1/2 which would be 2.

From there, you plug in the coordinate into x and y and solve for b;

5 = 2 * -3 + b

5 = -6 + b

b = 11

Therefore the equation is;

y = 2x + 11

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The floor of a triangular room has an area of 32 1/2 sq.m. If the triangle’s altitude is 7 172 m, write an equation to determine

sineoko [7]

Answer:

$\frac{(2)A}{h} =b$

b=0.00906m

Step-by-step explanation:

Hello! To solve this exercise we must remember that the area of any triangle is given by the following equation

$A=\frac{bh}{2}$

where

A=area=32.5m^2

h=altitude=7172m

b=base

Now what we should do take the equation for the area of a rectangle and leave the base alone, remember that what we do on one side of the equation we must do on the other side to preserve equality

$A=\frac{bh}{2} \\\frac{2}{h} A=\frac{bh}{2} \frac{2}{h} \\$

$\frac{A(2)}{h} =b$

solving

$\frac{2(32.5)}{7172} =0.0090[tex]\frac{A(2)}{h} =b\\b=0.00906m$

4 0

3 years ago

Solve the system by substitution. y = 8x + 32 Y= -8x

leonid [27]

The answer is (x,y) = (-2, 16)

do you need an explanation as well?

6 0

2 years ago

Solve for w. 0.05w = 15

steposvetlana [31]

In order to find the value first multiply both sides by 100 to simplify the equation:
0.05w*100=15*100
5w=1500
Next, divide both sides of the equation by 5:
5w/5=1500/5
w=300
The final solution is w=300!

Hope i could help.
have a great day

4 0

3 years ago

Read 2 more answers

Rationalize the denominator and simplify. √6/√5-√3

Ann [662]

I hope this is useful

3 0

3 years ago

If d = 390 mi, and r = 60 mi/h. what is the value of time (t)?

Jobisdone [24]

D = 390mi
r = 60 mi/h

390/60 = 6.5

(t) = 6.5 h

5 0

3 years ago