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3 years ago

A triangle has side with the lengths 8x + 6, 5x -5 and -6x + 12. What is the perimeter of the triangle?

1 answer:

5 0

To find the perimeter you have to combine like terms. 8x + 5x - 6x is 7x and 6 - 5 + 12 is 13 so the perimeter of the triangle is 7x + 13

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Graph y=3/4x +5.<br> Click or tap the graph to plot a point

RoseWind [281]

Start at 5 and go up 3 and move 4 to the right

7 0

4 years ago

Read 2 more answers

What’s the correct answer for this?

Mice21 [21]

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First, you'd work out the centre value

It would be the opposite value to what is in the brackets

Thus, the centre value is (2, -4)

Plot this value on a graph

In order to find the radius, you must square root the 25

Thus, the radius would be 5

Plot some points with a radius of 5 from the centre and then draw the circle

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8 0

3 years ago

√(25 - 10 √(3) + 3)<br> (not as a decimal)

nikitadnepr [17]

Answer:

$\huge\boxed{\sqrt{25-10\sqrt3+3}=5-\sqrt3}$

Step-by-step explanation:

$\sqrt{25-10\sqrt3+3}=(*)\\\\25=5^2\\3=(\sqrt3)^2\\10\sqrt3=(2)(5)(\sqrt3)\\\\(*)=\sqrt{5^2-(2)(5)(\sqrt3)+(\sqrt3)^2}\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=\sqrt{(5-\sqrt3)^2}\\\\\text{use}\ \sqrt{a^2}=|a|\\\\=|5-\sqrt3|=5-\sqrt3\\\\^{\text{because}\ 5>\sqrt3\to5-\sqrt3>0}$

6 0

3 years ago

0>3x-3-6 what is the answer

larisa86 [58]

The answer to this problem is X<3

3 0

3 years ago

Read 2 more answers

For every left handed person, rhere are about 4 right handed people. If there are 30 students in a class, predoct the number of

hjlf

Answer:

4 right handlers for everytime 5 people

solution:

4/5. = x/30

x = (4)(30)/5

x= 24

there are 24 right handed people

Step-by-step explanation:

I am left handed so I know this is true :)

7 0

1 year ago