3 years ago

What numbers multiply to 20 & add up to 9.

Mathematics

2 answers:

Fantom [35]3 years ago

5 0

Answer:

4 and 5

Step-by-step explanation:

4 x 5 = 20

4 + 5 = 9

larisa [96]3 years ago

3 0

Answer:

4 and 5

Step-by-step explanation:

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a car brought for sh 80,000 was sold through a dealer at a profit of 15% commission on the selling price.how much did the owner

Luba_88 [7]

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3 years ago

An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time

d1i1m1o1n [39]

Answer:

a) $s=\sqrt{1+d^2}$

b)d(t)=500t

c) $s(t) =\sqrt{1+250000t^2}$

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

$Hypotenuse^2=Perpendicular^2+Base^2$

$s^2=1^2+d^2$

a) $s=\sqrt{1+d^2}$

(b) Express d as a function of the time t (in hours) that the plane has flown.

$distance = speed \times time$

d(t)=500t

$s(t) =\sqrt{1+d^2}$

using b

$s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}$

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3 years ago

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Reptile [31]

Answer:

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Step-by-step explanation:

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2 years ago

6. If xy = 6 and x = 2, then x + y =

ANTONII [103]

Xy = 6
x = 2

2y = 6

y = 6÷2

y = 3

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3 years ago

The length of the terrarium is 14.5 inches and the width is 7 inches. what is the height of the terrarium?

mote1985 [20]

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