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3 years ago

FInd the length of a segment that has endpoints H(2,-3) and J(12,7)

Mathematics

1 answer:

N76 [4]3 years ago

5 0

d =sqrt ((x2-x1)^2 +(y2-y1)^2)

sqrt((12-2)^2 +(7--3)^2)

sqrt(10^2+10^2)

sqt(100+100)

sqrt(200)

sqrt(100)sqrt(2)

10sqrt(2)

Choice B

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Can someone help me please please please

marissa [1.9K]

Use the Pythagorean theorem $a^{2} + b^{2} = c^{2}$ to find the missing side length of a right triangle

In this case, after you plug in the given numbers your equation is $12^{2} + y^{2} = 20^{2}$

Then, Just solve that equation for y.

$144 + y^{2} = 400$

$x^{2} = 256$

$\sqrt{} y^{2} = \sqrt{256}$

y = 16

So the answer is B, 16 cm.

I hope this helps, please feel free to ask questions if you're still confused :)

7 0

4 years ago

Find the value of X.

Oksanka [162]

Answer:

x =25

Step-by-step explanation:

This is an isosceles triangle because RS = ST

that means <r = <STR

4x-70 = STR

<STR + <STU = 180 straight line

subtract < STU from each side

<STR = 180 -<STU

we know angle stu = 6x

<STR = 180 -6x

we can substitute this into 4x-70 = STR

4x-70 = 180 -6x

add 6x to each side

4x+6x -70 = 180 -6x+6x

10x -70 = 180

add 70 to each side

10x-70+70 = 180+70

10x=250

divide by 10

10x/10 = 250/10

x =25

5 0

3 years ago

Which expression below represents,”A number increased by five?”

Anna35 [415]

C
The word “increased” means to add, so C would be the correct answer. Hope this helps!

8 0

3 years ago

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I WILL MAKE YOU THE BRAINY IF YOU GET THE RIGHT ANSWER FIRST :D

Arte-miy333 [17]

A^2 - 6a/a-6 • a+3/a
a(a - 6)/(a - 6) • a+3/a
a • (a + 3)/a
a(a+3)/a
a+3.

The correct solution to this question would be B. a+3.

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3 years ago

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A circle has a diameter of 4 inches. Which statement about the area and circumference of the circle is true?

maxonik [38]

The numerical values of the circumference and area are equal.

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3 years ago

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