Answer:
x = 0
Step-by-step explanation:
Step 1: Write equation
9x - 7 = -7
Step 2: Solve for <em>x</em>
- Add 7 to both sides: 9x = 0
- Divide both sides by 9: x = 0
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
9(0) - 7 = -7
0 - 7 = -7
-7 = -7
Four sixths. You have to make sure the denominators are equal, so since 6 is the greater denominator then that is the denominator we’ll use especially since three is a factor of 6. Multiply the three by 2 to get 6, and then multiply the numerator by the same number, 2, and you’ll get two sixths as your answer. Then, add two sixths plus two sixths to get four sixths which can be simplified to two thirds.
Answer:
D. Both A and B are true
Step-by-step explanation:
Why would you study to decrease scores? so C. Is automatically wrong. Now A. is true and B. is true. D says both A and B are true so D is correct.
Answer: Circle.
Depending on the angle and the place of intersection, when a plane intersects a cube, the sections created may be a square, a pentagon, a trapezoid, a triangle or a rectangle (even you can obtain an octagon), but you will never get a circle.
Answer:
r = -9/10
Step-by-step explanation:
Given
7/10 = r - (-8/5)
Required
Solve for x
7/10 = r - (-8/5)
We start by opening the bracket
7/10 = r + (- -8/5)
7/10 = r + (8/5)
7/10 = r + 8/5
Subtract 8/5 from both sides
7/10 - 8/5 = r + 8/5 - 8/5
7/10 - 8/5 = r
Solve the fraction by taking their LCM
(7 - 16)/10 = r
-9/10 = r
Reorder the above
r = -9/10
Hence, the value of r is -9/10