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prisoha [69]
3 years ago
13

A 13-A ladder leans against the side of a house. The bottom of the ladder is 8 ft from the side of the house. How high is the to

p of the ladder from the ground?
If necessary, round your answer to the nearest tenth.
13
8
Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0

Answer:

10.2 ft

Step-by-step explanation:

a^{2} +b^{2} = c^{2} \\8^{2} +b^{2} =13^{2} \\

64 + b^{2} = 169

b^{2} = 105\\

b=\sqrt{105}

b= 10.2469

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kow [346]

Answer:

y=2x-11

Step-by-step explanation:

Put it in the form y=mx+b=>y=2x-1/2. Instead of -1/2, put it as b, since you want it to go through 3,-5. y=2m+b when it goes through (3,-5) happens when -5=3*2-b. Do algebra, and get b as 11. That means the equation is y=2x-11.

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3 years ago
Which value of x makes the equation 1.25(4x+2)=32.5
UkoKoshka [18]

Answer: x=6

Step-by-step explanation:

8 0
3 years ago
Please right answer for 25 pts and a mark. A store is having a sale on chocolate chips and walnuts. For 3 pounds of chocolate ch
Alexxandr [17]

Answer:

Chocolate Chips are 1.50 per pound and Walnuts are 3.25 per pound.

3 0
3 years ago
PLS HELP ASAPPP plsss
Anna71 [15]

Answer:

27.5

Step-by-step explanation:

this is the trigonometric ratio.. we are looking for d... that is the opposite... any side facing the angel is the opposite.... so the longest side of the right angle triangle is the hypotenuse........ so you are looking for the opposite and you are giving the hypotenuse.... so the easiest way to know how to find it is by using this way...... SOH CAH TOA..... the first words stand for sin cosine and tangent of angles.... we are using sin.... because it says opposite / hypotenuse... and as you can see the angle which is 39 degree we will use sin 39.....what will be sin 39=d/30m....then ull cross multiply.... d=30m* sin 39.....

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but since 27.5 is dere....

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4 0
3 years ago
NEED HALP!!! Find the ordered pair $(s,t)$ that satisfies the system
satela [25.4K]

Answer:

(-8/7 ; 5/7)

Step-by-step explanation:

5t + 1/2s = 3 - - - (1)

3t - 6s = 9 - - - - - (2)

Multiply (1) by 12 and (2) by 1

Add the result to eliminate s

60t + 6s = 36

3t - 6s = 9

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63t = 45

t = 45 / 63

t = 5/7

Put t = 5/7 in either (1) or (2) to obtain the value of s

3(5/7) - 6s = 9

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-6s = (63 - 15)/7

-6s = 48/7

s = 48/7 * - 1/6

s = - 8/7

5 0
3 years ago
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