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3 years ago

8. which of the following ordered pairs is a solution of the given system of linear equations

Mathematics

1 answer:

V125BC [204]3 years ago

3 0

Answer:

Option D The solution of the system is the point (-3,5)

Step-by-step explanation:

we have

x+y=2 -----> equation A

y=-2x-1 ------> equation B

Solve the system by substitution

Substitute the equation B in equation A and solve for x

x+(-2x-1)=2

-x-1=2

x=-2-1

x=-3

Find the value of y

y=-2x-1

y=-2(-3)-1

y=5

therefore

The solution of the system is the point (-3,5)

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Black_prince [1.1K]

Answer:

A.5

Step-by-step explanation:

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3 years ago

(r3 +6r2 −21r−18)÷(r−3) solve using synthetic division

alexandr402 [8]

Answer:

y = x^2 + 9x + 6 No remainder.

Step-by-step explanation:

The divisor will be 3 The sign on the divisor switches.

3 || 1 + 6 - 21 - 18 ||

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The answser is x^2 + 9x + 6

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3 years ago

Find the length of side x I simplest radical form

alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

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AC² = AB² + BC²

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AC = $\sqrt{61}$

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = $(\sqrt{61})^2$ + x²

x² = 100- 61

x² = 39

x = √(39)

Option A will be the answer.

7 0

2 years ago

Thank you all for helping so far, mind if I ask again, haha

wariber [46]

Answer:

10 < 18 + 7

10 < 25

True yyes

cuz it is above 10

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Select all the true statements. *

I am Lyosha [343]

A,C,D are the answers

8 0

3 years ago