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3 years ago

Help............................

Mathematics

1 answer:

Lyrx [107]3 years ago

8 0

Answer: convex

Step-by-step explanation:A convex polygon is a simple polygon (not self-intersecting) in which no line segment between two points on the boundary ever goes outside the polygon. Equivalently, it is a simple polygon whose interior is a convex set.

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Proportion multiple choice

-Dominant- [34]

Answer:

a) x 2

b) x 3

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3 years ago

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Please help! Find the x-intercepts of the parabola with vertex (-4, 2) and y-intercept (0, -30). Write your answer in this form:

ch4aika [34]

X1-y1
x2-y2

-4-3
0+30

-6
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the answer would be -0.2

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3 years ago

In 2001, the value of a plot of land is $12,000. Each year, the value of the plot increases by 8%.

olga2289 [7]

F(x)=12,000(1.08)^x

The answer is the first equation.
The equation increases so 1 is added to 0.08 (8%).

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3 years ago

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Fill in the missing number.<br> 24, 32, _<br> -, 48, 56

Cloud [144]

The answer is 40..........

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3 years ago

Two drivers, Alison and Kevin, are participating in a drag race. Beginning from a standing start, they each proceed with a const

Vilka [71]

Answer:

Alison wins against Kevin by 0.93 s

Step-by-step explanation:

Alison covers the last 1/4 of the distance in 3 seconds, at a constant acceleration $a_a$ , we have the following equation of motion

$s/4 = a_at_a^2/2$

where s (m) is the total distance, ta = 3 s is the time

$s = 4a_a3^2/2 = 18a_a$

$a_a = s/18$

Similarly, Kevin overs the last 1/3 of the distance in 4 seconds, at a constant acceleration $a_k$ , we have the following equation of motion:

$s/3 = a_kt_k^2/2$

tk = 4 s is the time

$s = 3a_k4^2/2 = 24a_k$

$a_k = s/24$

Since $a_a = s/18$ we can conclude that $a_a > a_k$ , so Alison would win.

The time it takes for Alison to cover the entire track

$s = a_aT_a^2/2$

$T_a^2 = 2s/a_a = 2s/(s/18) = 36$

$T_a = \sqrt{36} = 6 s$

The time it takes for Kevin to cover the entire track

$s = a_kT_k^2/2$

$T_k^2 = 2s/a_k = 2s/(s/24) = 48$

$T_a = \sqrt{48} = 6.93 s$

So Alison wins against Kevin by 6.93 - 6 = 0.93 s

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3 years ago