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sveta [45]
3 years ago
7

Can someone pls help?

Mathematics
2 answers:
Volgvan3 years ago
8 0

Answer: x=6\sqrt{3}

Step-by-step explanation:

x=\sqrt{12^{2}-6^{2}  } =\sqrt{144-36} =\sqrt{108} =6\sqrt{3}

GenaCL600 [577]3 years ago
3 0

Answer: 2

Step-by-step explanation:

Because if u divide 12÷6=2 2×6=12

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He vertices of square pqrs are p -4,0 q 4,3 r 7,-5 and s -1,-18.Show that the diagonals of square pqrs are congruent perpendicul
Anit [1.1K]

Answer:

Step-by-step explanation:

The vertices of the square given are P(-4, 0), Q(4, 3), R(7, -5) and, S(-1, -18)

For this diagonal to be right angle the slope of the diagonal must be m1=-1/m2

So let find the slope of diagonal 1

The two points are P and R

P(-4, 0), R(7, -5)

Slope is given as

m1=∆y/∆x

m1=(y2-y1)/(x2-x1)

m1=-5-0/7--4

m1=-5/7+4

m1=-5/11

Slope of the second diagonal

Which is Q and S

Q(4, 3), S(-1, -18)

m2=∆y/∆x

m2=(y2-y1)/(x2-x1)

m2=(-18-3)/(-1-4)

m2=-21/-5

m2=21/5

So, slope of diagonal 1 is not equal to slope two

This shows that the diagonal of the square are not diagonal.

But the diagonal of a square should be perpendicular, this shows that this is not a square, let prove that with distance between two points

Given two points

(x1,y1) and (x2,y2)

Distance between the two points is

D=√(y2-y1)²+(x2-x1)²

For line PQ

P(-4, 0), Q(4, 3)

PQ=√(3-0)²+(4--4)²

PQ=√(3)²+(4+4)²

PQ=√9+8²

PQ=√9+64

PQ=√73

Also let fine RS

R(7, -5) and, S(-1, -18)

RS=√(-18--5)+(-1-7)

RS=√(-18+5)²+(-1-7)²

RS=√(-13)²+(-8)²

RS=√169+64

RS=√233

Since RS is not equal to PQ then this is not a square, a square is suppose to have equal sides

But I suspect one of the vertices is wrong, vertices S it should have been (-1,-8) and not (-1,-18)

So using S(-1,-8)

Let apply this to the slope

Q(4, 3), S(-1, -8)

m2=∆y/∆x

m2=(y2-y1)/(x2-x1)

m2=(-8-3)/(-1-4)

m2=-11/-5

m2=11/5

Now,

Let find the negative reciprocal of m2

Reciprocal of m2 is 5/11

Then negative of it is -5/11

Which is equal to m1

Then, the square diagonal is perpendicular

6 0
3 years ago
Help with this please
Svet_ta [14]
The answer to the question is D
4 0
3 years ago
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On a four day trip you have traveled 429.8 miles at the end of one day if you plan to drive this amount in each of the remaining
Luden [163]
429.8x 4 days=1,719.2miles driven on a four day trip.
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3 years ago
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How does the formula S=2B+Ph apply to finding the surface area of a right prism?
tigry1 [53]

Answer S−2BP=h

Explanation:isolate the Phterm on one side of the equation:S−2B=PhDivide both sides by P:S−2BP=h

Hopefully this helps!

brainlest if it rightt

8 0
2 years ago
Twice the sum of a number and 7 is more than 6 or at most -3. Which compound inequality can represent this relationship
yarga [219]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
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