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Anton [14]
3 years ago
6

Which set of angles are complementary

Mathematics
1 answer:
Deffense [45]3 years ago
6 0

Answer:

A. <ECF and <BCF

Step-by-step explanation:

Complementary angles are angles that add up to give 90°

m<BCE = m<BCA = 90° (right angles)

m<ECF + m<BCF = m<BCA

m<ECF + m<BCF = 90° (Substitution)

Therefore, <ECF and <BCF are complementary angles.

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One cell phone plan charges 20$ per month plus$0.15 per minute used.
maw [93]
So for the first one... Let's just use x for months and m for minutes.

(20m)+(.15m)

20 times the number of months plus .15 times the number of minutes

Same for the next one

(35x)+ (.10m)

35 times the number of months +.10 times the minutes.
7 0
3 years ago
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The answer and the work
crimeas [40]

Answer:

x=1

Step-by-step explanation:

Substitute the value of y to the first given

3x+4(-x)=-1

3x+(-4x)=-1

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divide both sides by -1

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3 years ago
Please answer the question! i will give brainliest!!!!!!
Reptile [31]

Answer:

B because you multiply all the similar numbers together then at the end you add them all up.Step-by-step explanation:

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3 years ago
Write in point slope form an equation of the line that passes through the given point and has the given slope: (0,1); m= 2
sergey [27]

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

\diamond\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\diamond

         Write an equation for the line that passes through (0, 1) and has a slope of 2 (in point-slope form).

\diamond\large\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}\diamond

<u>Point-slope form</u>:-

      \sf{y-y_1=m(x-x_1)}

Substitute 1 for y₁, 2 for m, and 0 for x₁:-

\sf{y-1=2(x-0)}

So we conclude that Option B is correct.

<h3>Good luck.</h3>

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

3 0
2 years ago
HELP!
Harlamova29_29 [7]

Answer:

2/8 or 1/4

Step-by-step explanation:

2/8 or 1/4 because the spots on the spinner are blue out of 8 is 2/8 or 1/4

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