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Karo-lina-s [1.5K]
3 years ago
10

Determine weather either of the points (-1,-5) and (0,-2) is a solution to the given system of equation

Mathematics
1 answer:
Anika [276]3 years ago
4 0
Only the first one works
y = 3(-1)-2 = -5
y = -(0) -6 = -6 not  -2 

This is a substitution problem...
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C is the answer of this problem
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3 years ago
Use the quadratic formula to solve the equation <br> X^2+9X+20=0
lions [1.4K]

Answer:

x=-4

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Step-by-step explanation:

6 0
3 years ago
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Find the missing term and the missing coefficient 6a −( )5a =( ) a2 − 35a
andrew11 [14]
Solving for the missing term and the missing coefficient (6a − )5a = ( ) a^2 − 35a
 Let the missing term be X
 Let the missing coefficient be Y
 Therefore, (6a – X)5a = Y(a^2) – 35a
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  Equating co-efficients,
30a^2 = Y.a^2; X.5a = 35a
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Y = 30; X = 7
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3 0
3 years ago
Sharon has 23 toy car that are colored red, blue, and white. She has 4 red cars, 2 fewer blue cars than red and 5 more purple ho
podryga [215]

Answer:

13 white cars

Step-by-step explanation:

Let us represent:

Number of

Red cars = x

Blue cars = y

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x + y + z = 23

x = 4

2 fewer blue cars than red

y - 2 = x

y - 2 = 4

y = 4 + 2

y = 6

Hence,

x + y + z = 23

4 +

Number of white cars is calculated as:

23 - (6 + 4)

23 - 10

= 13 white cars

8 0
3 years ago
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Answer:

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4 0
3 years ago
Read 2 more answers
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