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Olegator [25]
3 years ago
8

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Mathematics
2 answers:
inn [45]3 years ago
8 0
The answer is 7.5
Just count the squares and I did it so it is right.

hodyreva [135]3 years ago
3 0
Area = 1/2 * base  * height
the height is BDand the base is AC 
so its  area = 1/2 * BD * AC
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The mean score of a placement exam for entrance into a math class is​ 80, with a standard deviation of 10. Use the empirical rul
Sedbober [7]

Answer:

47.5%

Step-by-step explanation:

5 0
3 years ago
On a coordinate plane, quadrilateral Q R S T has points (0, 2), (negative 4, 0), (0, negative 3), and (4, 0).
Afina-wow [57]

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

<h3>How to apply rigid transformations on a point</h3>

Herein we must apply a rigid transformation into a given point to determine an image. <em>Rigid</em> transformations are transformations applied on a <em>geometric</em> locus such that <em>Euclidean</em> distance is conserved. Dilations are a kind of <em>rigid</em> transformations such that:

(x, y) → (k · x, k · y), for k > 0

If we know that Q(x, y) = (0, 2) and k = 0.5, then the coordinates of Q' are:

Q'(x, y) = (0.5 · 0, 0.5 · 2)

Q'(x, y) = (0, 1)

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

To learn more on dilations: brainly.com/question/13176891

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8 0
2 years ago
Solving system of equations with substitution.
JulijaS [17]

Answer:

Hope it helps!

Step-by-step explanation:

Sub y=5x into y=2x+3

so

5x=2x+3

3x=3

x=1

plug x=1 into y=5x

y=5

Checking work

Plug (1,5) into y=2x+3

5=2(1)+3

5=5

Plug (1,5) into y=5x

5=5(1)

5=5

6 0
4 years ago
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ryzh [129]

Answer:

Distributive

Step-by-step explanation:

In any problem with a form of A(b+c) you are distributing the A to both b and c

As you can see in your example, you are distributing the 7 to both the 8 and the two

If you were to solve this problem the final answer would be 70

The property is Distributive

6 0
3 years ago
Read 2 more answers
I'm thinking of a number. I subtract 4 and then halve the result. The answer is 9. What is the number I am thinking of?
Maru [420]
Hey There

Correct answer: 13

Why? To find this out you need to add 4 to 9 to figure it out

have a good day
4 0
3 years ago
Read 2 more answers
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