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tekilochka [14]
3 years ago
7

Find the areas of at least two of the triangles below. Show your reasoning. help plzz

Mathematics
1 answer:
scoray [572]3 years ago
5 0
Answer:
A. Area = 8
B. Area = 15.5

Explanation:

Formula for Area of Triangles: b•h / 2

A.
height = 2.
base = 8.
2•8 = 16/2 = 8
Area = 8

B.
height = 3
base = 7
3•7 = 21/2 = 15.5
Area = 15.5

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Look at triangle ABC. What is the length of said AB of the triangle
Nuetrik [128]
\bf ~~~~~~~~~~~~\textit{distance between 2 points}
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A(\stackrel{x_1}{4}~,~\stackrel{y_1}{5})\qquad 
B(\stackrel{x_2}{1}~,~\stackrel{y_2}{2})\qquad \qquad 
%  distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AB=\sqrt{(1-4)^2+(2-5)^2}\implies AB=\sqrt{(-3)^2+(-3)^2}
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AB=\sqrt{9+9}\implies \boxed{AB=\sqrt{18}}\implies  AB=\sqrt{2(9)}
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AB=\sqrt{2(3^2)}\implies \implies AB=3\sqrt{2}
5 0
3 years ago
Will give brainlyest if u help
goblinko [34]

Answer:

No, because it fails the vertical line test ⇒ B

Step-by-step explanation:

To check if the graph represents a function or not, use the vertical line test

<em>Vertical line test:</em> <em>Draw a vertical line to cuts the graph in different positions, </em>

  • <em>if the line cuts the graph at just </em><em>one point in all positions</em><em>, then the graph </em><em>represents a function</em>
  • <em>if the line cuts the graph at </em><em>more than one point</em><em> </em><em>in any position</em><em>, then the graph </em><em>does not represent a function </em>

In the given figure

→ Draw vertical line passes through points 2, 6, 7 to cuts the graph

∵ The vertical line at x = 2 cuts the graph at two points

∵ The vertical line at x = 6 cuts the graph at two points

∵ The vertical line at x = 7 cuts the graph at one point

→ That means the vertical line cuts the graph at more than 1 point

   in some positions

∴ The graph does not represent a function because it fails the vertical

   line test

7 0
3 years ago
Please help me! I have no idea how to do this
elena-s [515]

The best way to do this is to make up values for the sides.

Say the lengths of square B's sides are each 4 cm. That means A's sides are 2 cm.

So, the area of square B is 4^2 = 16 cm^2, and A's area is 4 cm^2. We can see the shaded area is half of A, so it's 2 cm^2.

What percent of 16 is 2?

2 / 16 * 100 = 12.5%

5 0
3 years ago
The scale drawing of a park uses the scale 5 cm= 1 km. what is the perimeter of the actual park?​
amid [387]

Answer:

5.0 × 10-5

Step-by-step explanation:

5 cm divided by 1 km

6 0
2 years ago
Mike's monthly pay after taxes is $2,300.
wlad13 [49]

Step-by-step explanation:

100%=>$2,300

45%=>x

x=$2,300×45÷100=$1035

The pay left for other purposes

$2300-$1035=$1265

Or:

100%=>$2,300

55%=>x

x=$2,300×55÷100=$1265.

5 0
3 years ago
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