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bagirrra123 [75]
3 years ago
7

What’s the area in polynomial standard form

Mathematics
1 answer:
Trava [24]3 years ago
3 0
Note that the Area of a rectangle is given by
Area = LB


Where L is the Length (the longer side) and B is the Breadth (or Width which is the shorter side).

From the image, L is (x+6).
Also from the image, B is (x+2)

This implies:
Area = LB \\  \\ Area = (x + 6)( x + 2)
Open up the bracket by multiplying both terms:
Area =  {x}^{2}  + 2x + 6x + 12 \\ Area =  {x}^{2}  + 8x + 12
Since the question says to leave it in polynomial form, that is your answer. Hope I helped? ☺️
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There are 12 months in a year.... so divide apr by 12....
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3 years ago
The Spirit Team will be selling popcorn as a fundraiser at the next basketball game to earn funds to go to Orlando for a competi
Bogdan [553]

Answer:1 and 2

Step-by-step explanation:

Given

Volume needed V=220\ in.^3

For first cylinder

r=3\ in.

h=4\ in.

V=\pi r^2h

V_1=\pi (3)^2(4)

V_1=113.11\ in^3

For second cylinder

r=4\ in.

h=4\ in.

V=\pi r^2h

V_2=\pi (4)^2(4)

V_2=201.08\ in^3

For Third cylinder

r=9\ in.

h=9\ in.

V=\pi r^2h

V_3=\pi (9)^2(9)

V_3=2290.51\ in^3

For fourth cylinder

r=4\ in.

h=9\ in.

V=\pi r^2h

V_4=\pi (4)^2(9)

V_4=452.448\ in^3

So, cylinder 1 and 2 are appropriate as it is under 220\ in.^3

3 0
3 years ago
6.8 Use the Normal approximation. Suppose we toss a fair coin 100 times. Use the Normal approximation to find the probability th
Maru [420]

Answer:

(a) The probability that proportion of heads is between 0.30 and 0.70 is 1.

(b) The probability that proportion of heads is between 0.40 and 0.65 is 0.9759.

Step-by-step explanation:

Let <em>X</em> = number of heads.

The probability that a head occurs in a toss of a coin is, <em>p</em> = 0.50.

The coin was tossed <em>n</em> = 100 times.

A random toss's result is independent of the other tosses.

The random variable <em>X</em> follows a Binomial distribution with parameters n = 100 and <em>p</em> = 0.50.

But the sample selected is too large and the probability of success is 0.50.

So a Normal approximation to binomial can be applied to approximate the distribution of \hat p<em> </em>(sample proportion of <em>X</em>) if the following conditions are satisfied:

  1. np ≥ 10
  2. n(1 - p) ≥ 10

Check the conditions as follows:

 np=100\times 0.50=50>10\\n(1-p)=100\times (1-0.50)=50>10

Thus, a Normal approximation to binomial can be applied.

So,  \hat p\sim N(p,\ \frac{p(1-p)}{n})

\mu_{p}=p=0.50\\\sigma_{p}=\sqrt{\frac{p(1-p)}{n}}=0.05

(a)

Compute the probability that proportion of heads is between 0.30 and 0.70 as follows:

P(0.30

                              =P(-4

Thus, the probability that proportion of heads is between 0.30 and 0.70 is 1.

(b)

Compute the probability that proportion of heads is between 0.40 and 0.65 as follows:

P(0.40

                              =P(-2

Thus, the probability that proportion of heads is between 0.40 and 0.65 is 0.9759.

6 0
3 years ago
Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
Kaylis [27]

Answer:

Step-by-step explanation:

You have to use the discriminant for this. If the quadratic is -4x^2-3x+7, then

a = -4, b = -3, and c = 7. The formula for finding the discriminant is

D=b^2-4ac which comes from the quadratic formula, but without the square root sign. Filling in:

D=(-3)^2-4(-4)(7) which simplifies down to

D = 9 + 112 so

D = 121. This is a perfect square, so the solutions will be 2 real. Just so you know, you will NEVER have a solution like the one offered in the third choice down. If you have one imaginary root, you will ALWAYS have a second by the conjugate rule.

7 0
3 years ago
Find the measure of the missing angle.<br> 60°/a
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Your answer should be 120
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3 years ago
Read 2 more answers
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