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2 years ago

I always get terribly confused on these, please show work?

Mathematics

2 answers:

VLD [36.1K]2 years ago

8 0

You are finding the square root of 121
*the answer is 11*
because if you times 11 by its self you get 121

Tanya [424]2 years ago

3 0

I'll try my best to explain this.

First off, and equilateral triangle is just a triangle with 3 equal sides.

For the
$\sqrt[m]{n}$
You just plug in the numbers you're given (m=2 and n=121) So your equation would look like this
$\sqrt[2]{121}$
Which means the square root of 121. So really the question is simply asking for
$\sqrt{121}$
Your answer would be 11.

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3125x=−62 value of x.

Papessa [141]

Answer:

x= -0.01984

Step-by-step explanation:

You divide both sides by 3125 to get x alone.

You get x=-0.01984

Hope this helps!

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2 years ago

A 30° central angle in a circle is equivalent to π/6 radians. Drag a tule to each box to correctly complete the sentence.

pav-90 [236]

Answer:

The answers are in the picture

Step-by-step explanation:

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2 years ago

PLEASE HELP FAST 100 EASY POINTS WILL MARK BRAINLEST!!!

spin [16.1K]

Answer:

$y=-1x+8 \\or\\y=-x+8$

Step-by-step explanation:

Okay so we know that line on the triangle DEF that's parallel to the line BC is EF. This because they have the same slope and we can prove that while solving for slope-intercept form.

First we figure out our points for both the lines:

BC: $B=(-2,4) \\C=(1,1)$

EF: $E=(4,4)\\F=(6,2)$

Now that we have our points we can use the slope formula to prove these two line have the same slope and are therefore parallel to eachother:

$\frac{y_1-y_2}{x_1-x_2}$ = Slope Formula

BC = $\frac{4-1}{-2-1} =\frac{3}{-3} =\frac{-3}{3} =-1$

EF = $\frac{4-2}{4-6} =\frac{2}{-2}=\frac{-2}{2}= -1$

So now we proved that both of these lines have a slope of -1. Then we can use the slope intercept formula and one of the points from the line EF to find the y-intercept of the of line EF:

Let's use point = $(4,4)$

$y=4,m=-1,x=4,b=?$

$y=mx+b\\4=-1(4)+b\\4=-4+b\\(+4) 4=-4+b(+4)\\8=b$

We used the formula and found that the y-intercept was $(0,8)$ , so now we plug in all of our answers:

$y=-1x+8$

This is the complete answer but if you wanted to simplify it more you could write it as $y=-x+8$ , cause as long as you make the x negative in the equation it will always be as if you multiplied it by -1.