Answer:
4x−y=−3
Step-by-step explanation:
The standard form of a linear equation is Ax+By=C
Rewrite the equation with the sides flipped.
4x+3=y
Move all terms containing variables to the left side of the equation.
Subtract y from both sides of the equation.
4x+3−y=0
Move 3
4x−y+3=0
Subtract 3 from both sides of the equation.
4x−y=−3
Answer:
4
9/8
Step-by-step explanation:
Given the fraction a/b, the reciprocal is expressed as 1/(a/b) = b/a
For 1/4;
1/4
= 1÷1/4
= 1 * 4/1
= 4
Hence the reciprocal is 4
b) 8/9
= 1 ÷ 8/9
= 1 * 9/8
= 9/8
Hence the reciprocal of 8/9 is 9/8
Answer:
angle 2 = 37º
Step-by-step explanation:
When two lines intersect they make vertical angles, which are angles directly across from another. Vertical angles are always congruent.
Answer:
a) 7z³+2z²-2z+1
b)2x²+3x-8
Step-by-step explanation:
a) (7z³+4z-1)+(2z²-6z+2)
7z³+2z²-2z+1
b) (5x²-2x-1)-(3x²-5x+7)
5x²-2x-1-3x²+5x-7
2x²+3x-8
Answer:
11/21
Step-by-step explanation:
34 and the 10 numbers in the 40s have at least one 4. If you include 30 and 50 in the range you're choosing from, then 11 out of the 21 numbers have at least one 4.
A randomly chosen integer from [30, 50] has a probability of 11/21 of having at least one 4.