Answer:
(x, y) = (-1/4, -3/4)
Step-by-step explanation:
1. Write as a system
2x + 2y = 14x - 2y = -2
2. Eliminate one variable by adding the equations
2x + 2y = -2
14 x - 2y = -2
3. Divide both sides by 16
16x = -4
4. Substitute the value of x into the equation.
x = -1/4
5. Solve the equation
2(-1/4) + 2y = -2
6. A possible solution is
y = -3/4
7. Check the solution
(x, y) = (-1/4, -3/4)
8. Simplify the expression
2(-1/4) + 2(-3/4) = 14(1/4) - 2(-3/4) = -2
9. The ordered pair is a solution
-2 = -2 = -2
10. (x, y) = (-1/4, -3/4)
This is a chemistry problem btw. But, either way, the formula for density is mass per unit of volume. To solve for volume, bring the D over to get M/D = V
(327g)/(1.05g/ml) is the equation. Grams cancel and you’re stuck with 311.428571mL. That isn’t your answer tho, because that isn’t the right amount of sig figs. We have two figs at the least so the right answer would be 311.42 or 311.43mL. We want it in scientific notation, so move the decimal place between 3 and 1. That’s two spots to the left, so the power would be 2. C is your right answer
My chem professor told me to round to even instead of rounding up all the time. Either way, the hundreds place is always a percent error of plus or minus 0.01
Answer:
BC = 4
Step-by-step explanation:
The the ratio for the corresponding sides of the two triangles would be equal. Therefore:
6/x = 3/2
Cross multiply
x*3 = 2*6
3x = 12
3x/3 = 12/3
x = 4
✅BC = x = 4
Answer:
i) Height a = 6 feet
ii) height b = 6 feet + 1 feet = 7 feet .... since radius, r = 1 feet
iii) height c = 6 feet + 2 feet = 8 feet .... since diameter, = 2 r = 2 feet
iv) height d = 6 feet + 1 feet = 7 feet
v) height e = 6 feet .... the point e is actually same point as point a but
at a distance of one revolution of the wheel from the point a
Step-by-step explanation:
i) Height a = 6 feet
ii) height b = 6 feet + 1 feet = 7 feet .... since radius, r = 1 feet
iii) height c = 6 feet + 2 feet = 8 feet .... since diameter, = 2 r = 2 feet
iv) height d = 6 feet + 1 feet = 7 feet
v) height e = 6 feet .... the point e is actually same point as point a but at a distance of one revolution of the wheel from the point a