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SashulF [63]
3 years ago
7

Solve the equation by completing the square. - 2x2 + x=0

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0

Answer:

x=4

Step-by-step explanation:

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What is the measure, in degrees, of ZA?
vesna_86 [32]

Answer:

28

Step-by-step explanation:

2x + 3x + 40 =180

5x= 180 - 140

5x=140

x= 28

6 0
2 years ago
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Are the following lines parallel, perpendicular, or neither?
natta225 [31]

Answer:

Perpendicular

Step-by-step explanation:

Parallel lines mean lines that have same slope but since both equations have different slopes which you can check by looking at m-value in y = mx + b. In this case m1 or first slope is -4/3 and m2 or second slope is 3/4.

Perpendicular means that both lines are reciprocal to each other. This means the perpendicular condition is or satisfies \displaystyle \large{m_1m_2 = -1 \longrightarrow m_1 = -\frac{1}{m_2} \longrightarrow m_2 = -\frac{1}{m_1}}

We have m1 = -4/3 and m2 = 3/4.

Therefore, -4/3 * 3/4 = -1 thus both lines are perpendicular to each other as it satisfies m1m2 = -1 condition.

8 0
2 years ago
Which expression is equivalent to 6^4 x 6^3
Alex777 [14]

Answer:

36^{7}

Step-by-step explanation:

6^{4} × 6^{3}

6 x 6 = 36

4 + 3 = 7  (add exponents because its multiplication)

8 0
2 years ago
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1(x-2)= -5.5 solving for x. What's the answer
Lapatulllka [165]

Answer:

x = -3.5

Step-by-step explanation:

1(x-2) = -5.5

x-2 = -5.5

 +2    +2

x = -3.5

3 0
3 years ago
Explain how two amounts of change can be the same but the percent of change can be different
densk [106]
If I understand the question correctly, you can have the same amount of change be two different percentages by having 4 quarters and 100 pennies.
Each quarter is 25%
Each penny is 1%
(am i explaining this right)
5 0
3 years ago
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