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Elina [12.6K]
1 year ago
10

All the corners of the shape are right angles. The perimeter of the shape is 28 m. Work out the area of ABCE.​​​

Mathematics
1 answer:
Amiraneli [1.4K]1 year ago
4 0

Answer:

13 m²

Step-by-step explanation:

To find the area of the shaded region, subtract the sum of the triangles from the area of the shape.

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Answer:

11

Step-by-step explanation:

(2×3)^2 = 6^2 = 36

5^2 = 25

(2×3)^2 - 5^2 = 36 - 25 = 11

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3 years ago
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For what value of x do the functions f(x)=−52x+4 and g(x)=−12x−4 have the same output?
lys-0071 [83]
F(x) = -52x + 4

g(x) = -12x - 4

To find the solution of the system of equation, we have to just equate the equation to each other.

f(x) = g(x)

-52x + 4 = -12x - 4

-52x + 12x = - 4 - 4

-40x = -8

x = \frac{-8}{-40} =  \frac{8}{40} =\frac{1}{5}

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4 years ago
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I really need help. My math teacher doesn't want to help me and isn't responding to my emails. Could you explain how to solve ea
wolverine [178]

4. To determine if a triangle is a right triangle, given that you know the length of its sides, you have to check if its lengths follow the Pythagorean theorem.

This theorem states that the square of the hypothenuse (c) is equal to the sum of the squares of the legs of the triangle (a and b), following the expression:

a^2+b^2=c^2

The triangle is:

We have to check that a²+ b² is equal to c².

The square of the hypothenuse is:

\begin{gathered} c^2=10^2 \\ c^2=100 \end{gathered}

The sum of the squares of the legs of the triangle is:

\begin{gathered} a^2+b^2=8^2+6^2 \\ a^2+b^2=64+36 \\ a^2+b^2=100 \end{gathered}

As you can see, the sum of the squares of the legs of the triangle is 100, which is the same as the square of the hypothenuse. The triangle follows the Pythagorean theorem and can be considered a right triangle.

4 0
1 year ago
Can someone help????????????
kirill115 [55]

Answer:

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Step-by-step explanation:

If you were to put a line of best fit for each graph, the top right scatterplot would be the only one that has a straight line of best fit.

Hope this helps :)

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3 years ago
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A national organization has been working with utilities throughout the nation to find sites for large wind machines that generat
kozerog [31]

Answer:

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

In this case, as the claim that want to be tested is that the average wind speed is significantly higher than 15 mph, the null hypothesis has to state the opposite: the average wind speed is equal or less than 15 mph.

Then, with this null hypothesis, the Type I error implies a rejection of the hypothesis that the average wind speed is equal or less than 15 mph. This is equivalent to say that there is evidence that the average speed is significantly higher than 15 mph.

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3 years ago
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