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3 years ago

If a circle has a circumference of 103 find the arc inercepted by a central angle of 115

Mathematics

1 answer:

castortr0y [4]3 years ago

8 0

360 divided by 115 = 3.13. Then you divide the 103 by the 3.13 = 32.90

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Find the equation of a line that passes through (5,-3) and is perpendicular to y = x.

VashaNatasha [74]

We know the slope is -1, because perpendicular line's slopes are always the negative reciprocal. We plug (5, -3) in to get:
-3 = -5 + b
b = 2
So we get C. y = -x + 2.
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Hope this helps!
==jding713==

8 0

3 years ago

2[7+2(6.8-4)] whatbis the answer

vagabundo [1.1K]

Answer:

25.2

Step-by-step explanation:

A calculator will evaluate this for you. If you don't have one, you can use a Google search box.

The Order of Operations tells you to start evaluation with the inner parentheses. Multiplication is performed before addition.

2(7 +2(2.8))

= 2(7 +5.6)

= 2(12.6)

= 25.2

3 0

3 years ago

Find the measure of the the sides of DEF then classify it by it sides. <br> D(8,-6) E(-1,-3) F(-2,5)

Mama L [17]

Answer:

Part a) The measure of the sides of triangle DEF are

$d_D_E=\sqrt{90}\ units$

$d_E_F=\sqrt{65}\ units$

$d_D_F=\sqrt{221}\ units$

Part b) Is a scalene triangle

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have the coordinates

D(8,-6) E(-1,-3) F(-2,5)

step 1

Find the length side DE

D(8,-6) E(-1,-3)

substitute in the formula

$d=\sqrt{(-3+6)^{2}+(-1-8)^{2}}$

$d=\sqrt{(3)^{2}+(9)^{2}}$

$d_D_E=\sqrt{90}\ units$

step 2

Find the length side EF

E(-1,-3) F(-2,5)

substitute in the formula

$d=\sqrt{(5+3)^{2}+(-2+1)^{2}}$

$d=\sqrt{(8)^{2}+(-1)^{2}}$

$d_E_F=\sqrt{65}\ units$

step 3

Find the length side DF

D(8,-6) F(-2,5)

substitute in the formula

$d=\sqrt{(5+6)^{2}+(-2-8)^{2}}$

$d=\sqrt{(11)^{2}+(-10)^{2}}$

$d_D_F=\sqrt{221}\ units$

step 4

Classify the triangle by the measure of its sides

we have

$d_D_E=\sqrt{90}\ units$

$d_E_F=\sqrt{65}\ units$

$d_D_F=\sqrt{221}\ units$

Is a scalene triangle, because is a triangle in which all three sides have different lengths.

6 0

3 years ago

If the distance between A(0, 4) and B(3,a) is 5 units then find the value of a.

Anna007 [38]

Answer:

Step-by-step explanation:

a = 0

So that AOB makes a right triangle with sides 3-4-5

4 0

2 years ago

Read 2 more answers

Please give me the answer to number 5 and explain how to do it.

Goryan [66]

The equation is simply 8s where s is the length of a side. There are 8 sides. You are just adding the length of all 8 sides together to get the perimeter.

4 0

3 years ago