2 years ago

A picture is 5 inches wide and 8 inches tall:

Mathematics

1 answer:

german2 years ago

5 0

Answer:

area = 250 in²

Step-by-step explanation:

5 x 2.5 = 12.5 in

8 x 2.5 = 20 in

area = 20 x 12.5 = 250 in²

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The sides of a triangle are given by the equations 4x-y-7=0,x+3y-31=0 and x+5y-7=0.determine the point of intersection of its al

Nezavi [6.7K]

Hello,

1)Let's call A=inter (4x-y-7=0, x+3y-31=0)
4x-y=7
x+3y=31
==>13x=52==>x=4
and y=4*4-7=9

A=(4;9)

2)Let's call B=inter (4x-y-7=0, x+5y-7=0)

4x-y=7
x+5y=7
==>21x=42
==>x=2 and y=4*2-7=1

B=(2,1)

3) Slope of BD: y=-x/3+31/3 ==> slope perpendicular=3

Line BD:y-1=3(x-2)==>y=3x+5

4) Slope AE: y=-x/5+7/5 ==>slope perpendicular=5
Line AE: y-9=5(x-4)==> y=5x-11

5) intersection (BD;AE):
y=5x-11
y=3x-5
==>2x=6==>x=3
and y=3*3-5=4
H=(3,4)

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2 years ago

The average cycling speed for an experienced cyclist is 18 miles per hour. What is the average cycling speed for an experienced

Anettt [7]

Answer:

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95040

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viva [34]

Answer:

(see below)

Step-by-step explanation:

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There is one side and two angles, so it's AAS or SAA.

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Answer:

Step-by-step explanation:

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