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lord [1]
3 years ago
9

Plz help decrease 420 by 7%

Mathematics
1 answer:
UNO [17]3 years ago
7 0
So you would work out
5%= 21
and then you would need to work out 2%
1%=4.2
2%=8.4
21+8.4
=29.4
420-29.4
=390.6
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A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 3 feet
Thepotemich [5.8K]

Answer:

39 feet

Step-by-step explanation:

From the question;

let length of ladder =x feet

height of ladder will be=x-3 feet

ground distance of ladder bottom to building=15 feet

Applying Pythagorean relation

a²+b²=c²

where a=15 feet b=x-3 feet and c=x feet thus

x²-15²=(x-3)²

x²-225=x²-6x+9

collect like term

x²-x²-225-9=-6x

-234= -6x

x= 39 feet length of ladder

distance from ground to top of ladder= 39-3=36 feet

3 0
3 years ago
Please help #11 ty!!
algol13

I think it is A I believe

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3 years ago
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Inessa05 [86]

Answer:

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Step-by-step explanation:

The y-intercept of the graphed function is (0,-9) because the y-intercept is where the point where the line meets with the y-axis, and the point where the line meets with the y axis is (0,-9)

Therefore the answer is

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I hope this helped you.

4 0
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