Answer:
Step-by-step explanation:
(13)2−(2x+7)=0
19x2−2x−7=0
9(19x2−2x−7)=9(0)
x2−18x−63=0
(x−21)(x+3)=0
Therefore, the value of x are
x - 21 = 0 and x + 3 = 0
x = 21 x = -3
Answer:Let the base of the 15ft long ladder be placed x ft away from the wall so that it exactly reaches the top of a 12- foot tall wall.
By Pythagorean theorem
12
2
+
x
2
=
15
2
⇒
x
2
=
15
2
−
12
2
=
81
⇒
x
=
√
81
=
9
ft
Step-by-step explanation:
Adrain and Jim save at same rate but David saves at a lower rate
Well, he could of spent $24
And we know he spent $4 on the magazine So subtract $4 from $24 to get $20
And $20/5(the composition books) = $4
So the Composition books also costed $4
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The range of temperatures in the data stream and leaf is given below.
<h3>What is tempreture?</h3>
Tempreture is the physical quantity that expresses quantitatively perception of hotness and coldness.
Combined
Mean:32.785714285714 or rounded 32.8
Median:29
Mode:25 and 29
Range:42
Minneapolis
Mean:28.857142857143 or rounded: 28.9
Median:25
Mode:None
Range:23
Columbus
Mean:36.714285714286 or rounded: 36.7
Median:29
Mode:29
Range:37
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