P = a + b + 2c P - a - b = a - a + b - b + 2c P - a - b = 2c 2 2 ¹/₂P - ¹/₂a - ¹/₂b = c
Which pair of triangles can be proven congruent by SAS?
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Where The Whole Problem At. ?
What is a solid figure without any bases and with only one curved surface
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A Sphere is a shape with only a curved surface with no bases or edges.
If r and s can be any integers such that s > 10 and 2r + s = 15, which of the following is the solution set for r ?
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R = -2 2x-2=-4 S = 19 This may be a possible answer
The population of a small town in 1990 was 1,200 people, and the population in 2000 was 2,700 people. Let x represent the number of years since 1990. Let y represent the population. Which linear equation represents this data?
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well... looking at how to question is defining things.....i think this is a multiple choice question.....
Given: "y" represents the population "x" represents the number of years duration = 2000 - 1990 = 10 years population increase = 2700 - 1200 = 1500 Now, It says linear equation........, So, we have to assume that every ten years the population increases by a fixed amount that is 1500 people every 10 years.
Now, Every 10 years, the population increases by 1500 Every 1 year , the population increases by 1500 / 10 = 150
Now, The equation in determining the population is:
y = 150x + 1200
Solve each system using substitution. 3x+2y=23 1/2x-4=y
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1: 3x+2y=23 2: 1/2x-4=y We have that y=1/2x-4 in 2 So lets substitu y in 1 3x+2(1/2x-4)=23 3x+x-8=23 4x=23+8 4x=31 X = 7,75 Now lets replace x in 2: 1/2.7,75-4=y 3,875-4 + y Y= - 0,125 So (x;y)=(7,75;-0.125)