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Trava [24]
2 years ago
15

Please help no links please!!!!!

Mathematics
1 answer:
ruslelena [56]2 years ago
4 0

The first one is 200 cause 360-160=200 cause it is the arc

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Consider the following pair of equations:
V125BC [204]
The pair of equations:
y = x + 4
y = -2x - 2

To solve the system of equation by substitution, you would substitute one variable for it's equivalent expression. Combining the pair of equations into one equation in only one variable. The easiest way to do this is by substituting out the variable y because it is already alone on one side of the equal sign. Substitute the y in the second equation for: x+4

x+4 = -2x - 2
solve for x
x + 2x = -2 -4
3x = -6
x = -2

now use the value for x to find y by putting into either equation.

y = x + 4
y = (-2) + 4
y = 2

solution is: (-2, 2)
4 0
3 years ago
I need HELPPPP I'll mark you the brainliest!
maksim [4K]

B, x = 2

Step-by-step explanation:

Given the vertices of the image, and preimage of this right isosceles triangle, we can find the line of reflection by definitively understanding how reflections work. Given the preimage contains the points A(-1,1), B(1,-1), and C(-3,-1). And that the image contains the points A'(5,1), B'(3,-1), C'(7,-1). We can differentiate the corresponding points and apply them to the rules of a reflection. if figure Z is reflected over x = n,

than Z'(x,y) = Z(-x+2n,y). Logically, you can see that this pattern resembles all three coordinates for the transformation. i.e A'(5,1) = A(--1+2n,1) ; (1+2n,1) = (5,1) ; 1 + 2n = 5, 2n = 4, n = 2

we can prove this by using another point:

B'(3,-1) = (-1+2n,-1) = (-1 + 4, -1) = (3,-1)

Hopefully you understand,

<u>Pls mark brainliest this took me a very long time.</u>

3 0
2 years ago
The equation x2 – 1x – 90 = 0 has solutions {a, b}. What is a + b
Andrews [41]
X^2 - x - 90 =0
This equation is in standard form ax^2+ bx + c
The sum of the solutions is -b/a (a and b are the coefficients from the equation above, not the solutions to the equation)
The answer is 1/1 = 1
8 0
2 years ago
Read 2 more answers
If a crate of 250 apples costs $95, what is the unit cost
aleksklad [387]

Answer:

2.631578947368421

Step-by-step explanation: 250 divided by 95 is 2.631578947368421

5 0
2 years ago
Use Distributive property 32x6)+(32x4) and rewrite
OverLord2011 [107]
Ily cor the same time as a result of the
8 0
3 years ago
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