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4 years ago

-2r – 5a + 12r + 10 + 5a. HELP ASAP

Mathematics

1 answer:

levacccp [35]4 years ago

3 0

Answer:

It looks like 10r + 10.

Step-by-step explanation:

-2r + 12r = 10r

-5a + 5a = 0

+ 10 = 10

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Anton [14]

2 + 4x + 5 = 0

4x + 2 + 5 = 0

4x + 7 = 0

4x = 0 - 7

4x = -7

x = <u> </u><u>-7</u><u> </u> ANSWER

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3 years ago

Read 2 more answers

What is the graph of 7x+y=-7 ?

max2010maxim [7]

To make it easier to graph this equation, you can manipulate it to get it in slope-intercept form. You'd do that like so:
7x + y = -7
y = -7x - 7
Now I can graph a bit more easily as I can more readily make out the slope and the y-intercept...

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4 years ago

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3 years ago

In triangle RST, m∠R > m∠S + m∠T. Which must be true of triangle RST? Check all that applym∠R > 90°

Sedbober [7]

Answer: The correct statements are,

m∠R > 90°

m∠S + m∠T < 90°

m∠R > m∠T

m∠R > m∠S

Step-by-step explanation:

Here, RST is a triangle,

Therefore, m∠R+m∠S+m∠T = 180° ⇒ m∠S+m∠T = 180° - m∠R

Given: m∠R > m∠S + m∠T

⇒ - m∠R < - (m∠S + m∠T) (by multiplying-1 on both sides)

⇒ 180°- m∠R < 180° - (m∠S + m∠T) (by adding 180° on both sides)

⇒ m∠S+m∠T < 180° - (m∠S + m∠T)

⇒ m∠S+m∠T+ m∠S+m∠T < 180° ( by adding m∠S + m∠T on both sides)

⇒ 2(m∠S+m∠T) < 180°

⇒ m∠S+m∠T < 90°

⇒ m∠R > 90° ( because m∠R+m∠S+m∠T = 180° )

Again, m∠R > m∠S + m∠T

⇒ m∠R > m∠S and m∠R > m∠T

Thus, Option first second fourth and fifth are correct.

Note: m∠S = m∠T is only possible when m∠R=90° (but it is not given)

That is why m∠S = m∠T is not correct.

And, there are not enough information to prove m∠S > m∠T

That is why m∠S > m∠T is also incorrect.

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3 years ago

Read 2 more answers

5 less than one fourth of x is y

dimulka [17.4K]

y = 1/4x - 5

Hope this helps!

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4 years ago