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Georgia [21]
3 years ago
7

Please help me i cant get these answers wrong :(

Mathematics
2 answers:
kaheart [24]3 years ago
7 0

Answer:

A=7.2

B=–8

Step-by-step explanation:

hope I helped!

Elena L [17]3 years ago
6 0

Answer:

A=7.2

B=-8

The second one is

A=2.37

B=10

Step-by-step explanation:

this is my alt lol

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Triangle CDE with vertices C(1, -1), D(2, 3), and E(3,-2) is reflected in line x= 4.
dlinn [17]

Answer:

(6,3)

Step-by-step explanation:

Two is two away from four and since it is on the left side, you add to get six as your x coordinate. The y coordinate stays the same.

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So because there are 4 squares like 4 parts of this figure and just one is shaded so the right answer will be 1/4 what mean 1 from 4 is the shaded part 

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A rectangular prism has a length of 1514 centimeters, a width of 8 centimeters, and a height of 214 centimeters. what is the vol
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1514 * 8 * 214 = 2,591,968cm.

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Draw a quadrilateral ABCD with AB = 8.5cm, BC =4.5cm, CD =5cm , DA = 6cm , BD =7.5cm. Draw an equal area Triangle​
irina1246 [14]

Answer:

Check below please

Step-by-step explanation:

A quadrilateral is a polygon with four sides.

Then let's plot it, check it below.

1) Since 5 line segments were given for a quadrilateral, one of them is an interior one. In this quadrilateral, a rhombus. We have a diagonal, id est a line segment between non-consecutive points.

2) Let's calculate the area of this rhombus. Since this polygon is made up of two triangles let's find it using Heron's Formula, not very popular. But equally valid, also we don't have the height nor angles.

All we need is the semi-perimeter, (half of the Perimeter (2P) and plug it in the formula:

\bigtriangleup ABD semi-perimeter:\frac{6+8.5+7.5}{2} \therefore s=11\\Area \:\bigtriangleup ABD=\sqrt{11(11-6)(11-8.5)(11-7.5)}=\frac{5\sqrt{77}}{2} \approx21.94 cm\\\\\bigtriangleup \:BCD\: semi-perimeter:\frac{4.5+5+7.5}{2}  \therefore s=8.5\\\\Area \bigtriangleup BCD=\sqrt{8.5(8.5-4.5)(8.5-5)(8.5-7.5)}=\sqrt{119}\approx 10.90

Area\: of\: Rhombus\: ABCD=21.94+10.90=32.84 cm^2

3) Well, now we need to trace a triangle whose area is 32.84 cm^2. From the classical formula for Area of Triangles we can write:

\frac{b*h}{2}=32.84 \therefore b*h=65.68

Let's find out two values one for the base and another for height. Since 65.58 can be divided both by two and three, it is divisible by 6.

So

65.58  : 6 =10.93\\b=6\\h=10.93

5 0
3 years ago
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