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Virty [35]
3 years ago
15

After plotting the data where x represents the length of the side of a polygon, and f(x) represents the area of the polygon, Jac

k used technology and constructed an appropriate model to approximate the area of the polygon. Use the model Jack created to predict the area of a polygon that has a side length of 3.
f(x) = x2 + 3x + 1

a. 10
b. 18
c. 19
d. 20
Mathematics
1 answer:
garri49 [273]3 years ago
7 0

Answer:

C. 19

Step-by-step explanation:

f(x) = x {}^{2}  + 3x + 1 \\ f(3) = 3 {}^{2}  + 3(3) + 1 \\  = 19

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need help with error analysis assingment, im in high school and ive always struggled with math alot pls help
valina [46]

Given

A) The angles A and B are supplementary.

If,

\begin{gathered} \angle A=x+6 \\ \angle B=7x+30 \end{gathered}

B) The figure,

To find

A) The value of x.

B) The value of x.

Explanation:

A) It is given that,

Angle A and angle B are supplementary.

Then,

\angle A+\angle B=180\degree

Hence, the error is in the statement,

Since the angles are supplementary, when added together they equal 90.

As, the correct answer is when added together they equal 180.

That implies,

\begin{gathered} x+6+7x+30=180 \\ 8x+36=180 \\ 8x=180-36 \\ 8x=144 \\ x=\frac{144}{8} \\ x=18\degree \end{gathered}

Hence, the value of x is 18 degrees.

B) It is given that,

From, the figure the given angles are interior angles.

Also, the interior angles on the same side of the transversal is supplementary.

Which means when you add them they equal 180.

Hence, the error is in the statement,

Since the angles are adjacent, they are complementary angles.

Which means when you add them they equal 180.

As, the angles are interior angles on the same side of the transversal.

Also,

\begin{gathered} 64+x=180 \\ x=180-64 \\ x=116\degree \end{gathered}

Hence, the value of x is 116 degrees.

6 0
2 years ago
How do you Find 15% of 15% of 15% of 500? How does this compaare to 45% of 500?
aev [14]
15% of 15% of 15% of 500 is 1.6875. 45% of 500 is 225. The difference between both numbers is that 225 is much larger than 1.6875. In fact 225, is 133 1/3 times larger than 1.6875. The more you repeated 15% of a number, the smaller it got, compared to 45% of the number, where it was larger than that number you kept reducing by percentages.
7 0
4 years ago
What is the property of it
Olenka [21]

Answer:

Commutative Property of Addition

Step-by-step explanation:

The commutative property of addition says that changing the order of addends does not change the sum. This is what the problem is doing.

8 0
4 years ago
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State whether the surface of the water in an aquarium is best modeled by a point, a line, a ray, or a plane.
77julia77 [94]
A line would be best used to model the surface of an aquarium, by putting a line on top of the surface and checking if the water is level or not.
7 0
3 years ago
Which term best describes the figure shown below?? WILL MARK BRAINLIEST!!!
ivann1987 [24]

Answer:

Line LM

Step-by-step explanation:

5 0
2 years ago
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