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Wewaii [24]
2 years ago
15

Given (-1,5) and (-1,2) are solutions to the following

Mathematics
1 answer:
tiny-mole [99]2 years ago
5 0

Answer:

C. ≥

Step-by-step explanation:

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Solve the following system by substitution.<br> X+2y=14<br> 6x+3y=21
andrey2020 [161]

Answer:

Step-by-step explanation:

x + 2y  = 14 ...............(1)

6x + 3y = 21 ..............(2)

Solve for x in equation 1

When x + 2y = 14

Therefore x = 14 - 2y ...................(3)

Now put equation 3 in equation 2 and solve

6x + 3y = 21 .............(2)

6(14 - 2y) + 3y = 21

Open the bracket and resolve

84 - 12y + 3y = 21

-9y + 84 =21

Now collect the like terms

-9y + 84 = 21

-9y = 21 - 84

-9y = -63

Divide through by -9 to get y

y = -63/-9

y = 7

Substitute for y in equation( 3 )to x

x= 14 - 2y............(3)

So, x = 14 - 2(7)

x = 14 - 14

x = 0.

Therefore x = 0 and y = 7

Check: From equation (1)

x + 2y = 14

Now, put x = 0 and y = -2

Therefore, 0 +2(7) =14

0 +14 = 14

5 0
4 years ago
What is the value of the fourth term in a geometric sequence for which a1= 30 and are= 1/2?
serious [3.7K]

Answer:

15/4.

Step-by-step explanation:

4th term = a1 r^3

= 30(1/2)^3

= 30/8

= 15/4.

3 0
3 years ago
28 POINTS SHOW WORK
lesantik [10]

Answer:

at ten minutes it will be at 60.7 and at 12 minutes itll be at 57.7

7 0
2 years ago
Which choice is equivalent to the expression below sqrt-27
alexdok [17]

Answer:

the square root of 27 is 5.2

if thats what ur asking

4 0
3 years ago
—1, 0, 2, 5, 9,<br> 一一一<br> Es geometric, neither, arithmetic
maxonik [38]

Answer: Neither since you are adding n, n+1, n+2 etc

Step-by-step explanation:

6 0
3 years ago
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