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antoniya [11.8K]
2 years ago
13

What is yhe measure of side JK? ​

Mathematics
1 answer:
geniusboy [140]2 years ago
4 0
18 because 18 is 3/4 of 24
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Kathy lives directly east of the park. The football field is directly south of the park. The library sits on the line formed bet
enyata [817]
Look at the picture in the attachment.

Using the Pythagorean theorem, set up a system of three equations:
x^2+y^2=(12+9)^2 \\
12^2+z^2=x^2 \\
9^2+z^2=y^2 \\ \\
x^2+y^2=441 \\
144+z^2=x^2 \\
81+z^2=y^2

\hbox{substitute } 144+z^2 \hbox{ for } x^2 \hbox{ and } 81+z^2 \hbox{ for } y^2 \hbox{ in the first equation:} \\
144+z^2+81+z^2=441 \\
225+2z^2=441 \\
2z^2=441-225 \\
2z^2=216 \\
z^2=\frac{216}{2} \\
z^2=108 \\
z=\sqrt{108} \\
z=\sqrt{36 \times 3} \\
z=6\sqrt{3} \\ z \approx 10.39

81+z^2=y^2 \\
81+108=y^2 \\
189=y^2 \\
\sqrt{189}=y \\
\sqrt{9 \times 21}=y \\
y=3\sqrt{21} \\ y \approx 13.75

a. The library is approximately 10.39 miles (exactly: 6√3 miles) from the park.
b. The park is approximately 13.75 miles (exactly: 3√21 miles) from the football field.

6 0
3 years ago
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It is now 8:59 a.m. when the bell rings at 9:01 am. Damian will be late for science class for the 3rd time this week. He must ge
kvv77 [185]

Answer:

1: 10 seconds   2: 4 seconds  3: 12 seconds

Step-by-step explanation:

35.0/3.5= 10

4.80/1.20= 4

60.0/5.00= 12

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2 years ago
Actorize Completely PQ+ PR - RQ -Q²​
sp2606 [1]

Answer:

(Q + R)(P - Q)

Step-by-step explanation:

PQ + PR - RQ - Q²​ = (Q + R)(P - Q)

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2 years ago
Rick has one dollar and twenty-seven cents to buy a notebook which names this money amount in terms of dollars? 12.7. 1.027. $1.
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the answer is $1.27 :))))


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3 years ago
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Which of these graphs represents a function?
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Answer:

{ \tt{graph \: y \:and \:graph\: z}}

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