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3 years ago

Can I get Help on explaination of this?

Mathematics

1 answer:

storchak [24]3 years ago

7 0

Answer:

The measure of the outside angle is the sum of the two inside angles:

68+52=120

Or you could do it the long way and find the third angle inside the triangle then do 180 minus that but this is easier.

Step-by-step explanation:

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Need answer before 8pm!!!

Gennadij [26K]

Answer:

28.9

Step-by-step explanation:

Using cosine, we get the equation cos(21)=x/31. Solving cos(21), we get about 0.933. Then we multiply by 31 to get about 28.9.

4 0

4 years ago

GUYS HELP I WILL GIVE BRAINLYIST <br> ;)

Kryger [21]

Levi Ackerman I looked it up

5 0

3 years ago

Point C is the midpoint of AB.point A has coordinates (2,4)and point C has coordinates (5,0) what are the coordinates of point B

devlian [24]

Answer:

The coordinates of point B is (8,-4)

Step-by-step explanation:

Midpoint of a line segment: It is the point on the line segment that divides the segment in two congruent segments.

Since it is given that C is the midpoint of Line segment AB.

Mid-point of a segment of end points $A(x_{1},y_{1})$ and $B(x_{2},y_{2})$ is, C= $(\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2})$ .

As, given the coordinates of A and C are (2,4) and (5,0)

then, we have $x_{1}=2$ , $y_{1}=4$ ; $\frac{x_{1}+x_{2}}{2}=5$ and $\frac{y_{1}+y_{2}}{2}=0$

to find the coordinates of $B(x_{2},y_{2})$ .

$\frac{2+x_{2}}{2}=5$

Simplify:

$2+x_{2}=10$

⇒ $x_{2}=8$

to solve for $y_{2}$ we have, $\frac{y_{1}+y_{2}}{2}=0$

or $y_{1}+y_{2}=0$

or $y_{2}= -y_{1}$ = -4

so, the values of $x_{2}=8$ and $y_{2}=-4$

Therefore, the coordinates of point B is (8,-4)

3 0

3 years ago

What is the radius of a circle whose equation is (x + 5)2 + (y - 3)2 = 42?

777dan777 [17]

Answer:

x=−y+19

Step-by-step explanation:

(x+5)(2)+(y−3)(2)=42

Step 1: Add -2y to both sides.

2x+2y+4+−2y=42+−2y

2x+4=−2y+42

Step 2: Add -4 to both sides.

2x+4+−4=−2y+42+−4

2x=−2y+38

Step 3: Divide both sides by 2.

−2y+38

x=−y+19

8 0

3 years ago

Read 2 more answers

F(x)=10x+100g(x)=8x

Rus_ich [418]

Answer:

instructions please

Step-by-step explanation:

8 0

3 years ago