Answer:
At the bottom!
Step-by-step explanation:
Put the two equations into the same standard form:
2x-y=8
-5x+2y=3
Now if you add the two equations up, guess what will happen?
You will "eliminate" the y variable, and only be left with the x variable.
Technically, you will get:
2x-y+2+28-5x+29+2y=8+23
-3x+20y=11
-3x=11
Answer/Step-by-step explanation:
x + 74° + 20° = 180° (sum of interior angles of a triangle)
x + 94° = 180°
x = 180° - 94° (subtraction property of equality)
x = 86°
y = 74° + 20° (exterior angle theorem of a triangle)
y = 94°
y + z + 32° = 180° (sum of interior angles of a ∆)
Plug in the value of y
94 + z + 32 = 180
z + 126 = 180
z = 180 - 126
z = 54°
Answer:
True.
Step-by-step explanation:
Let me clear it to you by an example:
if you take n=1,3,5,7,...... which are odd numbers
then adding 1 with them will give you n+1=2,4,6,8.... which are even numbers.
That's how, if an integer n is odd, then n+1 must be even.
Similarly, if you let n as even numbers, then n+1 will be odd.
Answer:
58 units
Step-by-step explanation:
a) The Linear function will be:
b) After 50 months, the length will be 40 inches.
Step-by-step explanation:
In this question we need to find the linear function to model length L(t). We are given:
Length of hair to donate = 15 in
Growth of hair per month = 1/2 in
The Linear function will be:
- Now, determining the time t when her hair length reaches 40 inches.
Length of hair L(t) = 40
We need to find t in the above linear function
Subtracting 15 from both sides
Multiplying 2 on both sides
So, After 50 months, the length will be 40 inches.
Learn More:
- Information about linear function
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