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KATRIN_1 [288]
3 years ago
14

What’s the answer ??

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0

Answer:

The answer is A.

Step-by-step explanation:


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Zipora wants to construct a triangle that has the following angle measures: 50°, 75°, and 55°. How many triangles can she make?
Alborosie
As sum of all angles of triangle equal to 180 degrees.
First we have to add the angles.
50+75+55
=50+130
=180 degrees

Answer: Zipora can construct exactly one triangle.
4 0
3 years ago
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For what value of r is the parallelogram a rhombus
Gre4nikov [31]

Answer:

9

Step-by-step explanation:

7r+18=r²

r²-7r-18=0

factorizing

r²+2r-9r-18=0

r(r+2)-9(r+2=0

(r-9)(r+2)=0

r-9=0

r=9

check

(r²)=(9*9)=81

7r+18=7(9) + 8=81

5 0
3 years ago
Please help asap Two vertices of a polygon are (7, −18) and (7, 18) . What is the length of this side of the polygon?
Pavlova-9 [17]
You just need to find distance between two points
d=\sqrt{(y2-y1)^2+(x2-x1)^2}
d=6

6 0
3 years ago
Which is equal to (2+3i)+(-4+i)?<br> A, -2-4i<br> B, -2-2i<br> C, -2+2i<br> D, -2+4i<br> E, 6+4i
inysia [295]

Answer:

D. -2+4i

Step-by-step explanation:

just combine like terms :)

6 0
3 years ago
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Find the surface area of the prism 4cm 5cm 12cm 13cm
inysia [295]
The answer would depend on where the numbers you gave us are on the pyramid. but here is the formula  to find the surface area of a prism; 
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i will do the equation for you if you specify which numbers are the base, length, side, and height. or if you attach a photo.
7 0
3 years ago
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