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Aliun [14]
3 years ago
6

Give another name for plane n​

Mathematics
1 answer:
zheka24 [161]3 years ago
4 0
Plan DCB




...........................
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Consider the following system of equations:
Kobotan [32]

Answer:

x=-15, y=25. (-15, 25).

Step-by-step explanation:

2x+3y=45

x+y=10

--------------

x=10-y

2(10-y)+3y=45

20-2y+3y=45

20+y=45

y=45-20

y=25

x+25=10

x=10-25

x=-15

5 0
3 years ago
Read 2 more answers
-4/5 to the power of 2 times -3/50
Crazy boy [7]
=(-4/5)^2 * -3/50
square -4/5 first; remember -4/5^2 is the same as -4/5 * -4/5

=(-4/5 * -4/5) * -3/50
multiply -4 numerators; multiply 5 denominators

=(-4 * -4)/(5 * 5) * -3/50

=16/25 * -3/50
multiply numerators 16 & -3; multiply denominators 25 & 50

=(16 * -3)/(25 * 50)
= -48/1250

simplify by 2
= -24/625 (or -0.0384)


ANSWER: -24/625 (or -0.0384)

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
| What is the product?<br> (2x-1)(x +4)<br> O 2x2-4<br> O 2x2+4<br> O 2x2 +78-4<br> O 2x2–7x-4
zubka84 [21]
The last one is that correct answer.
2x^2 +7x -4
3 0
3 years ago
What is the answer to the question above?
Bond [772]

Answer:

i beleive that B is the best option

4 0
3 years ago
Read 2 more answers
The diameter of a circle is 9 cm. Find its area to the nearest tenth.
Alja [10]
<h2>63.6 cm</h2><h2 />

Cut diameter in half to find radius

9/2 = 4.5

radius = 4.5

This is the formula for area of a circle:

pi * radius^2

pi * 4.5^2

20.25pi

Now find pi:

20.25 * pi = 63.6

Answer:

63.6 cm is the area

3 0
3 years ago
Read 2 more answers
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