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Lina20 [59]
2 years ago
7

Help me plz I really appreciate it

Mathematics
2 answers:
mojhsa [17]2 years ago
8 0
4 dollars they contributed 4 dollars each
Kruka [31]2 years ago
7 0

Answer: 8$

Step-by-step explanation: 4.50 + 7.50=12  1/2 of 24 is 12. 24 divided by 3 is 8

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Find the measures of the given angles or the lengths of the given sides. m<b=3y, m<e=6y-12
Mamont248 [21]
 The measure of the angles would be: m<b=12 and m<e=12.
5 0
3 years ago
Find the coordinates of the circumcenter of △PQR with vertices P(−2,5), Q(4,1), and R(−2,−3).
mel-nik [20]

Answer: (1/3,2)

Step-by-step explanation:

Let O(x,y) be the circumference of the triangle PQR,

Thus, by the property of circumcenter all the vertices of the triangle are at same distance from this circumcenter.

Thus, PO = QO

By the distance formula,

(x+2)^2+(y-5)^2 = (x-4)^2+(y-1)^2

\impliesx^2+ 4x + 4 + y^2+ 25 - 10 y = x^2+16 - 8 x + y^2+1 - 2y

\implies 4x + 4 + 25 - 10 y = 16 - 8 x + 1 - 2y

\implies 4x +8x-10y+2y = 16 + 1 -25-4

\implies 12x - 8y = 17 - 29

\implies 12 x - 8 y = - 12---------(1)

Similarly, QO = RO

\implies (x-4)^2 + (y-1)^2 = (x+2)^2+(y+3)^2

\implies x^2 + 16 - 8x + y^2+ 1 - 2y = x^2+ 4 + 4 x +y^2+ 9 + 6 y

\implies 16 - 8x + 1 - 2y = 4 + 4 x + 9 + 6 y

\implies - 8x -4x-2y-6y=4+9-16-1

\implies -12 x - 8 y = 13 - 17

\implies 12 x + 8 y = 4   ------------(2)

By adding equation (1) and (2),

24 x = - 8

x = 1/3

By putting this value in equation (1),

We get,

Thus, 4 - 8 y = -12

8 y = 16

y = 2

7 0
3 years ago
Very lost on this one! Anyone know?
Marizza181 [45]

Answer:

60

Step-by-step explanation:

In this case, all of the sides are equal. All sides should add up to 180 degrees.

x+x+x=180

180/3= 60

3 0
3 years ago
each month for 6 months,kelsey completes 5 paintings. How many more paintings does she need to complete before she has completed
Solnce55 [7]
5 painting every 6 months so 5x6=30
38-30=8
3 0
3 years ago
Read 2 more answers
Which diagram shows the correct electron configuration for fluorine (F)?
daser333 [38]

Answer:

it is the first one i think

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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