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3 years ago

Quick math, please help! What is the length of side BC in the triangle? Thank you!

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

3 0

Answer:

I got 24 for the answer!

Step-by-step explanation:

x+8=2x-1

solve for x, and you will get x=9

then you will plug this into bc, 3x-3, and that will be 3(9)-3, and you will get 24! Hope this is right!

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An example of an addition problem in which you would and would not group the addends different to add

murzikaleks [220]

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3 years ago

Does the point (-4, 2) lie inside or outside or on the circle x^2 + y^2 = 25?

Lostsunrise [7]

Given equation of the Circle is ,

$\sf\implies x^2 + y^2 = 25$

And we need to tell that whether the point (-4,2) lies inside or outside the circle. On converting the equation into Standard form and determinimg the centre of the circle as ,

$\sf\implies (x-0)^2 +( y-0)^2 = 5 ^2$

Here we can say that ,

• Radius = 5 units

• Centre = (0,0)

Finding distance between the two points :-

$\sf\implies Distance = \sqrt{ (0+4)^2+(2-0)^2} \\\\\sf\implies Distance = \sqrt{ 16 + 4 } \\\\\sf\implies Distance =\sqrt{20}\\\\\sf\implies\red{ Distance = 4.47 }$

Here we can see that the distance of point from centre is less than the radius.

Hence the point lies within the circle .

3 0

3 years ago

Read 2 more answers

I NEED HELP PLEASE, THANKS!!!

denpristay [2]

Answer:

C. 105 $mm^2$

Step-by-step explanation:

The formula for a regular polygon is:

$\frac{1}{2}pa$ → p is the perimeter and a is the apothem

$\frac{1}{2} (42)(5)$

105

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3 years ago

Hi again, need help on this please, This is for my End-Of-Year Test, help!

allsm [11]

The correct answer is the first one.

5 x 100 is correct.
9 x 1 is correct because the 9 is in the ones section, not the tens.
3 x 1/10 is correct because it is equal to 0.3.
7 x 1/1000 is correct because it is equal to 0.007.

Hope this helped! You’re welcome

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3 years ago

If a half gallon milk costs $1.24, what is the cost per pint?

PIT_PIT [208]

Hello! The answer is: $0.31

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3 years ago