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laiz [17]
3 years ago
8

Which statement is NOT true?

Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0
C."<em>Two lines lie in one plane if and only if the lines are parallel" </em>is a wrong statement.
To lie in the one same plane, the two lines need not be parallel.
So, the answer is option C.
laila [671]3 years ago
4 0

Answer:

A.  If two coplanar lines do not intersect, then the lines are parallel. This is true. Two lines are parallel lines if they are coplanar and do not intersect.

B. Two lines lie in one plane and do not intersect if and only if the two lines are parallel. This is true. Only parallel lines lying in a plane do not intersect.

C. Two lines lie in one plane if and only if the lines are parallel. This is false. Two lines in the same 3 d space which do not intersect need not be parallel. They are parallel only if they lie in a common plane. If not, they are called skew lines.

D. If two lines are parallel, then they lie in one plane and do not intersect. Yes this is true.

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Find the pattern. What numbers come next?
rusak2 [61]
The answer is B. It is increasing by 9 each time.
6 0
3 years ago
The ratio of red marbles to blue marbles is 7:4.what is the total no of marbles
7nadin3 [17]

Answer:

<u>its 11</u>

Step-by-step explanation:

\frac{7}{1}  +  \frac{4}{1}  =  \frac{11}{1}  \\  = 11

5 0
3 years ago
Find the volume of the square pyramid. Round to the nearest tenth.
gregori [183]

Answer:

363.6

Step-by-step explanation:

Given in the question,

side of square = 10

Step 1

To find the slant height pyramid we will use pythagorus theorem

13² = 5² + height²

height = √13² - 5²

           = 12

Now find the height of the pyramid

12² = 5² + height²

height = 10.91

Step 2

Base area of the pyramid

area = l²

       = 10²

       = 100

Step 3

Volume = 1/3(height)(basearea)

             = 1/3(10.91)(100)

             = 363.6

4 0
3 years ago
9. You roll a standard number cube (with 6 sides) 8 times. The results are 5, 1, 2, 4, 6, 3, 5, 5
scoray [572]

Answer:

a) we have 5 there 3 times so answer is 3/8

b)

for 8 times rolling 3 times 5 we have

for 40 times rolling will 15 times 5

Step-by-step explanation:

a) we have 5 there 3 times so answer is 3/8

b)

for 8 times rolling 3 times 5 we have

for 40 times rolling will 15 times 5

8 0
2 years ago
Andy got a 32% discount on all his purchases at his favorite shop. if he saved $64 on the total bill, the bill amount without th
rosijanka [135]
Let x be the value of the his purchases without the discount. The $64 is the value of the 32% discount. 
                                   64 = 0.32x      ; x = 200
Thus, he should have paid $200 if there was no discount. The amount he paid (p) is only 68% of this value. p = (0.68)(200) = 136. Hence, he paid only $136. 
7 0
3 years ago
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