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hoa [83]
3 years ago
5

Which ordered pair is not a solution of y= -4x - 9 ?

Mathematics
1 answer:
____ [38]3 years ago
6 0
y=-4x-9 \\ \\
(x,y)=(-9,27) \\
27=-4 \times (-9)-9 \\
27=36-9 \\
27=27 \\
true \\ \\
(x,y)=(3,-21) \\
-21=-4 \times 3-9 \\
-21=-12-9 \\
-21=-21 \\
true

(x,y)=(-6,15) \\
15=-4 \times (-6)-9 \\
15=24-9 \\
15=15 \\
true \\ \\
(x,y)=(5,-28) \\
-28=-4 \times 5-9 \\
-28=-20-9 \\
-28=-29 \\
not \ true

D. (5,-28) is not a solution of y=-4x-9.
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Simple...

you have: -7=c-6

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Thus, your answer.
6 0
3 years ago
. Dillion deposits $150 into his account. One week later, he withdraws $26. Write an addition expression to represent this situa
Lina20 [59]

Answer:

Expression = x + 150 +(- 26)

$124 higher

Step-by-step explanation:

Given

Deposit = \$150

Withdrawal = \$26

Required

Represent the situation

Determine how much higher or lower is the remaining amount

Let the initial amount in his account be represented with x

When he deposited, the balance becomes

Balance = x + 150

When he withdrew, the balance becomes

Balance = x + 150 + (-26)

Hence, the algebraic expression is

Expression = x + 150 +(- 26)

Calculating how much higher or lower

Balance = x + 150 + (-26)

Open bracket

Balance = x + 150 -26

Balance = x + 124

Recall that the initial amount in the account is x

The difference between the balance and the x is as follows

Difference = x + 124 - x

Difference = \$124

<em>Hence, the account has a higher of $124 after both transactions</em>

8 0
3 years ago
C is the midpoint of chord AB and D is the midpoint of arc AB.Given that AB=36 unit and CD=6 unit then What is the radius of cir
Anna71 [15]

Answer:

By power of a point, AC⋅CB=DC⋅CE. That is, 12⋅12=6⋅(2R–6).

Then, R=15.

5 0
3 years ago
Read 2 more answers
How do i write the number 640,739 in expanded form
Luda [366]
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4 0
3 years ago
Read 2 more answers
First to answer correctly will be marked brainliest
kozerog [31]

Answer:

Step-by-step explanation:

  • Binomial: 2 terms
  • Trinomial: 3 terms
  • Linear: a straight line
  • Quadratic: like a curved line

(3x + 2) - (x + 5)

1(3x + 2) - 1(x + 5)

3x + 2 - x - 5 <== combine like terms

3x - x + 2 - 5

2x - 3 <== final answer, linear binomial

(2x + 8) + (3x² - 2)

1(2x + 8) + 1(3x² - 2)

2x + 8 + 3x² - 2

3x² + 2x + 6 <== final answer, quadratic trinomial

(3x + 8) + (4x² - x)

1(3x + 8) + 1(4x² - x)

3x + 8 + 4x² - x

4x² + 2x + 8 <== final answer, quadratic trinomial

(x² + 5x minus (-) 2) + (8 minus (-) 5x)

(x² + 5x - 2)  + (8 - 5x)

1(x² + 5x - 2)  + 1(8 - 5x)

x² + 5x - 2 + 8 - 5x

x² + 6 <== final answer, quadratic binomial

(x² + 7x) - (x² + 5)

1(x² + 7x) - 1(x² + 5)

x² + 7x - x² - 5

7x - 5 <== final answer, linear binomial

Hope this helps!

7 0
2 years ago
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