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olga2289 [7]
2 years ago
13

Which of the following equations shows how substitution can be used to solve the following system of equations?

Mathematics
1 answer:
klasskru [66]2 years ago
5 0

Answer:

i have  no idea does anyone else know

Step-by-step explanation:

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The speed of light is about 300,000 kilometers per second. Convert the speed to miles per hour. Round your answer to the nearest
Snezhnost [94]
300000 km/sec x 3600 sec/hr=1080000000 km/hr
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7 0
3 years ago
Read 2 more answers
Graph x^2/49+y+1^2/4=1
11Alexandr11 [23.1K]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Perhaps you want a graph of ...

  x^2/49 +(y +1)^2/4 = 1

This is an ellipse centered at (x, y) = (0, -1) with a major axis in the x-direction of 14, and a minor axis in the y-direction of 4.

3 0
3 years ago
A rectangular pan has a length that is the width. The total area of the pan is 432 in.2. What is the width of the cake pan? A =
spayn [35]

Answer:

Let width = w

length = 4w/3

Area = 432 = length*width = w*4w/3

4w^2/3 = 432

w^2 = 432*3/4 = 324

w = 18

so the width of the cake pan is 18 inches.

4 0
3 years ago
Simplify : 48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}]​
garri49 [273]

Answer:

86

Step-by-step explanation:

48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2{1 (2 - 15÷3)}] \\ 8[ - 2.5{ (2 - 15÷3)}] \\ 8[ - 2.5{ ( - 13÷3)}] \\ 8[ - 2.5{ (  - 4.3)}] \\ 8[10.75 { }] \\  = 86

8 0
2 years ago
The king comes from a family of 2 children. what is the probability that the other child is his sister?
stira [4]
The chance is 50% because if there are 2 children the probability would be 1/2 or 50%.
4 0
3 years ago
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