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Serga [27]
3 years ago
6

Can someone please help me with this? I'll mark brainliest for the right answer

Mathematics
1 answer:
lapo4ka [179]3 years ago
6 0
Where’s the question?
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to angie's ladder was 22 feet tall above the ground lying against the wall of her house.the base of the ladder was 5 feet tall.w
Talja [164]

Answer:


Step-by-step explanation:

Okay, so attached is a diagram of the triangle we are solving. Because buildings are almost always perpendicular (90 degrees) to the ground, it is a right triangle.

You can now use the pythagorean theorem with the sides to fill in the other side:


a^2+ b^2= c^2

5^2 + b^2= 22^2

25+b^2=484

b^2= 459

b=21.42


Okay, so for slope you need 2 points- think of the wall as your y axis, and the ground as your x axis. The ladder is the line.

Your first point is (-5,0) because the bottom of the ladder is touching the ground (no y movement) and the bottom of the ladder is 5 feet from the base of the wall and ground (origin).

The second point is going to be (0, 21.42) because that is the height of the wall where the ladder is touching (x is at origin). The 21.42 is positive, because you can't have negative height.

Okay so far? :)

(-5,0) and (0, 21.42)

(x1, y1) and (x2, y2)

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

slope= (21.42-0)/ (0-(-5)) ---- becomes positive

slope= 4.284

(Note: slope could also be negative if you put the ladder on the other side of the wall- 5 would become positive... google "positive vs negative slopes" for more info)


Hopefully that answers your question!

3 0
3 years ago
Marta has opened a savings account with $25. At the end of three months, she has $85 in her account. She deposited the same amou
vampirchik [111]
$20 a month. if u subtract the amount that she started with from $85, you get $60. $60 divided by 3 months is $20 a month
5 0
2 years ago
Problem #15: A box contains 4 black balls, 7 red balls, and 3 green balls. Three balls are
Liula [17]

Answer:i don't know

Step-by-step explanation:

3 0
2 years ago
Help me oo000-00000of
lisabon 2012 [21]

Answer:

x = 15

y = 5

Step-by-step explanation:

x = 15

y = 5

6 0
2 years ago
The number of pepperoni slices that kim puts on a pizza varies directly as the square of the diameter of the pizza. If she puts
seropon [69]
You can make this into a fraction, and then simplify it.

15/10, right?

15/10 = 3/2

Then compare 3/2 to the rest of the equation

3/2 = x/16

2 * 8 = 16
so
3 * 8 = x
x = 24

Kim would put x number of pizza slices on her pizza.
So she would be putting on 24 slices on her pizza.
6 0
2 years ago
Read 2 more answers
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