Which of the following is a solution y=3x-1 A.(4,1) B.(2,5) C.(4,3) D.(0,-3)

Mathematics

1 answer:

mote1985 [20]4 years ago

8 0

Y=3x-1 (2, 5),

Answer is B (2, 5)

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Which of the following graphs shows the solution for the inequality<br> y-4> 2(x+2)?

timofeeve [1]

Answer:

Answer:

Graph C shows the solution for the inequality

Step-by-step explanation:

y - 4 > 2(x + 2)

y > 2x + 4 + 4

y > 2x + 8

Let y = 2x + 8, Then

X-intercept (0, 8)

Y-intercept (-4, 0)

Since the inequality sign is > we use broken line.

Put, (0, 0)

y > 2x + 8

0 > 0+ 8

0 > 8 Which is false

so, the answer will be above the broken line

Hence , Graph C shows inequality

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Step-by-step explanation:

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3 years ago

The following is an incomplete paragraph proving that the opposite angles of parallelogram ABCD are congruent:

kramer

<span>Pls. see attachment.
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3 years ago

Read 2 more answers

For circle O, mCD=125° and m

Burka [1]

CA is a diameter of the circle, so $m\widehat{AC}=180^\circ$ , which means $m\angle AOB=m\angle AOD=m\widehat{AD}=180^\circ-m\widehat{CD}=55^\circ$ . Then $m\boxed{\angle ABO}=90^\circ-55^\circ=35^\circ$ .

This means $m\angle CBO=55^\circ-35^\circ=20^\circ$ . Also, if $m\angle AOB=55^\circ$ , then $m\angle BOC=180^\circ-55^\circ=125^\circ$ , which in turns tells us that $m\boxed{\angle BCO}=180^\circ-20^\circ-125^\circ=35^\circ$ .