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Sedaia [141]
3 years ago
12

Elizabeth had a box of 24 crayons. Her little brother ate 2 of them. She split the remaining crayons between her and her 2 frien

ds. How many crayons did each friend get?
Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0
24 - 2 (the 2 that he ate) = 22. 22 ÷ 3 (for her and 2 friends) = 7 1/3.
Dvinal [7]3 years ago
6 0
Hi there!

So, she has 22 crayons, because her brother ate 2 of them. She split them with 3 people, (herself, and her two friends.) So, divide 22 / 3, which is ≈7.

Hope this helps!! ♥♥
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What is the perimeter of square PQRS?
Citrus2011 [14]
First, we need to find the length of the side of the square.
Use phytagorean theorem to find the length of the side. The side acts as hypotenuse, the distance of x and the distance of y acts as the perpendicular side of a right triangle. For clear understanding, see image attached.

General phytagorean theorem
c² = a² + b²
c represents hypotenuse, a and b are the side perpendicular to each other.

In this case, we could write it as
s² = Δx² + Δy²
s represents the length of the side, Δx represents distance of x, Δy represents distance of y

Plug in the numbers, use two of the vertices
I use (4,-1) and (7,3)
s² = Δx² + Δy²
s² = (7-4)² + (3 - (-1))²
s² = 3² + (3 + 1)²
s² = 3² + 4²
s² = 9 + 16
s² = 25
s = √25
s = 5
The length of the side is equal to 5 units length.

Second, find the area of the square
General area to find the area of a square
a = s²

Plug in the numbers
a = s²
a = 5²
a = 25
The area of the square is equal to 25 units area.

3 0
3 years ago
Given: ABC is a right triangle with right angle C. ​ AB=14 centimeters ​ and m∠A=33∘ .
ruslelena [56]
AC is the adjacent leg to angle A, so use cosine to find out AC
cosA=AC/AB
AC=AB*cosA
AC=14*cos33
use your calculator to find AC≈11.7

8 0
3 years ago
Read 2 more answers
What is the line of symmetry of the parabola y=x2+6x-9?
Rzqust [24]
First we have to find the vertex (h,k) h is also x and it also is the a xis symmetry

1st: group the number
(X2+6x)-9

2nd: use b/2

6/2 = 3 , 3^2= 9

(X2+6x+9)-9-9

(X2 + 3)-18

Vertex is 3,-18 so the symmetry is 3
5 0
3 years ago
How do you do this?
zaharov [31]
4sin x=2sin x + √3
4sin x-2sinx=√3
2sin x=√3
sinx=√3/2

x=arcsin √3/2=π/3  + 2Kπ U  2π/3+2Kπ

Sol: π/3  + 2Kπ   U    2π/3+2Kπ ;       K∈Z

π/3+2Kπ=60º+360ºk    
2π/3+2Kπ=120º+360ºK


4 0
3 years ago
Find the missing side <br> C=
solniwko [45]

Answer:

C = 10

Step-by-step explanation:

A^{2} + B^{2} = C^{2}

6^{2} + 8^{2} = 100

\sqrt{100} = 10

7 0
3 years ago
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