B^-2 / b^-3 = b^(-2-(-3) = b^1 = b
answer is d
2x+3=10^3 now solve for x.....hope it helps
Answer:
x = 20 degrees and y = 70 degrees
Step-by-step explanation:
The first thing you do is work out the angle next to 180 degrees
180 - 40 = 140
Bottom angles in an isosceles triangle are equal.
180 - 140 = 40
40/2 = 20
so x = 20 degrees
The next thing is right angle - 20 = 70 degrees
Angles in a triangle add up to 180 degrees
70 + 40 = 110
180 - 110 = 70
so y = 70 degrees
Answer:
88,959
Step-by-step explanation:
it's subtraction. I got the answer
Answer:
1. x=27
2. x=3
Step-by-step explanation:
<h3>the first one </h3>
let's solve your equation step-by-step.
x−7=20
Step 1: Add 7 to both sides.
x−7+7=20+7
<h3>the second one </h3>
Let's solve your equation step-by-step.
3x+6=12x−21
Step 1: Subtract 12x from both sides.
3x+6−12x=12x−21−12x
−9x+6=−21
Step 2: Subtract 6 from both sides.
−9x+6−6=−21−6
−9x=−27
Step 3: Divide both sides by -9.
−9x/−9=−27/−9
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