You find your slope with the equation

(y2-y1)/(x2-x1)

(-1-2)/ -4-1.5)

(-3)/(-5.5)

.54x is your slope

you then plug that into your equation.

y=mx+b

y=.54x+b

you substitute one of our coordinates.

(-4,-1)

-1=.54(-4)+b

-1=-3.45+b

+3.45

2.45=b

your equation is

y=.54x+2.45

standard form

y-.54x=2.45

5 0

2 years ago

A ladder that is 32 ft long leans against a building. The angle of Elevation of the Ladder is 70 degrees

netineya [11]

Answer:

B. 30 ft

Step-by-step explanation:

The ladder is 32 ft long

The angle of elevation of the ladder is 70°

The height (h) of the top of the ladder to the ground is what we are to find.

$\frac{h}{32}$ = sin 70°

h = 32 × sin 70° = 30.07016387 or 30 ft (rounded off to nearest feet)

3 0

2 years ago

I do draws a blueprint of a house using the scale 1 in equals 6 ft in the kitchen has a length of 24 ft what is the length of th

ikadub [295]

Answer:

Length of kitchen on blueprint = 4 in.

Step-by-step explanation:

Scale used to draw a blueprint of a house :

6 feet = 1 in.

Therefore, 1 feet = $\frac{1}{6}$ in.

If the length of kitchen = 24 feet

Then the length of kitchen on the blueprint will be

= $\frac{1}{6}\times 24$

= 4 in.

Therefore, length of kitchen on blueprint is 4 in.

8 0

2 years ago

When surveyed,the student who preferred science class to English class was 5:4 if 90 students were surveyed how many students ch

svp [43]

50. i’m sure you’re learning the proper mathematical way to do that, but my brain went ‘4+5 is 9. that’s 10 times less than 90’

7 0

3 years ago