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Mars2501 [29]
3 years ago
14

In a 20 item true-false examination, if 12 correct answers constitute a passing grade,

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

The answer is B, I know this because I just took a test with this question lol

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Which equation has no solution? A 2(x+1)=1 B 2(x+1)=2x+2 C 2(x+1)=2x+1 D 2(x+1)=2
Veseljchak [2.6K]

Answer:

C) 2(x+1)=2x+1 ( No Solution )

Step-by-step explanation:

1)

2(x+1)=1\\\cfrac{2\left(x+1\right)}{2}=\frac{1}{2}\\x+1=\cfrac{1}{2}\\ x+1-1=\frac{1}{2}-1\\\boxed{x=-\frac{1}{2}}

2)

2(x+1)=2x+2\\2x+2=2x+2\\2x+2-2=2x+2-2\\2x=2x\\2x-2x=2x-2x\\0=0

3)

2(x+1)=2x+1 \\2x+2=2x+1\\2x+2-2=2x+1-2\\2x=2x-1\\2x-2x=2x-1-2x\\0=-1\\\boxed{No\:Solution}

4)

2(x+1)=2\\\cfrac{2\left(x+1\right)}{2}=\cfrac{2}{2}\\x+1=1\\x+1-1=1-1\\x=0

~

4 0
2 years ago
Find the slope of the line (-9, 1) (1, 9)​
dezoksy [38]

Answer:

Slope=4/5

Step-by-step explanation:

This is the formula to find the slope of lines:

y2-y1/x2-x1 (look it up to learn more)

9-1/1+9

8/10

4/5

The slope is 4/5

Hope this helps :)

6 0
3 years ago
Read 2 more answers
Help pls ahdjsjfjdjcjdj
MrMuchimi

Answer:

B. t = 12h

Step-by-step explanation:

Multiplying the number of hours worked by how much you earn per hour will give you how much you'll earn.

3 0
3 years ago
I need some help with this, I am supposed to solve for x
liq [111]

They are the same measurements, because:

from 10x + 5, first do vertical angle.

then, alternate interior angle,

then vertical angle again,

and another alternate interior angle.

For each vertical and alternate interior angles, the measurements stay the same.


Set them equal to each other, isolate and solve for x.

10x + 5 = 11x - 1

First, isolate the x. Subtract 10x from both sides, and add 1 to both sides

10x (-10x) + 5 (+1) = 11x (-10x) -1 (+1)

Simplify

5 + 1 = 11x - 10x

6 = x

x = 6

6 is your answer for x.

hope this helps

3 0
3 years ago
How many corn pizzas were sold?
Klio2033 [76]

Answer:

45

Step-by-step explanation:

10+10+10+10+5=45

5 0
3 years ago
Read 2 more answers
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