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Oliga [24]
3 years ago
5

Could someone help me do this using substitution I don't know how to do this for math

Mathematics
2 answers:
umka21 [38]3 years ago
5 0
X=y-7 and x=2-8y  if there is a solution x=x so

y-7=2-8y  add 7 to both sides

y=9-8y   add 8y to both sides

9y=9  divide both sides by 9

y=1, and since x=y-7

x=1-7=-6

So the solution is the point (-6, 1)
gizmo_the_mogwai [7]3 years ago
5 0
If X=y-7 you put that into the other problem: y-7=2-8y. Then you combine like terms: 9y=9. Get the unknown by itself: divide both sides by 9: y=1. Then you put what y= into the first problem: X=1-7 then X=-6.
So X=-6, Y=1. :) hope this helps!
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ludmilkaskok [199]

The linear factors of the function are the x-intercepts which are (x + 5), (x + 2), (x - 1) and (x - 6)

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Given the graph of the function. The linear factors of the function are the x-intercepts which are (x + 5), (x + 2), (x - 1) and (x - 6)

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7 0
2 years ago
Find the solutions of each equation on the interval [0, 2π).
inysia [295]

Answer:

x = 0

Step-by-step explanation:

Given sin(3π/2+x) + sin(3π/2+x) = -2

2sin(3π/2+x) = -2

sin(3π/2+x) = -1

clearly x = 0 on satisfies the above equation

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7 0
3 years ago
A) 48°<br> B) 132°<br> C) 180°
Svet_ta [14]
C would be the answer because a full circle is 360 degrees, pqr is half of the circle so its 180 degrees
4 0
3 years ago
Read 2 more answers
The graph represents a quadratic function. Write the function in vertex form.
Luba_88 [7]

Answer:

y=3(x+3)^2-8

Step-by-step explanation:

Vertex form:

y=a(x-h)^2+k

h=-3, k=-8

y=a(x+3)^2-8

sub (-4,-5)

-5=a(-4+3)^2-8

a=3

y=3(x+3)^2-8

8 0
3 years ago
Pls help !! answer both 1a and 1b pls​
Ivan

Answer:

KM = 50 mm , ∠ K = 104°

Step-by-step explanation:

Note that KM = KL = 50mm ( congruent legs )

This indicates the triangle is isosceles with base angles congruent, both 38°

∠ K = 180° - (38 + 38)° = 180° - 76° = 104°

4 0
3 years ago
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