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3 years ago

If two lines are coplanar, which of the following must be true

Mathematics

2 answers:

tamaranim1 [39]3 years ago

6 0

It will be D because the lines share at least one point and is sharing a lease one line

astraxan [27]3 years ago

3 0

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

If two lines are coplanar, then lines should be parallel or they should intersect each other.

It means, perpendicular lines always intersect to each other but parallel lines never.

So, If the lines are perpendicular then it must intersect, other wise the lines never intersect.

so, the lines are coplanar.

Hence, Option 'c' is correct.

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6143 × 45 work out

snow_lady [41]

Answer: 276,435

Step-by-step explanation:

yes

4 0

2 years ago

Laura has 24 stamps from each of 6 different countries. She can fit 4 stamps on each display sheets of an album. How many displa

Ket [755]

B. 36
To find the number of sheets that Laura is going to fill with her stamps, we first have to find the total number of stamps.
If she has 24 stamps EACH from 6 countries, to get the total, we will multiply
24 x 6 = 144 total number of stamps.

to see how many sheets she will fill we will DIVIDE the total number of stamps by 4 because that is the number she can fit onto One display sheet.
144 ÷ 4 = 36
36 sheets will be used to put four stamps each from a total of 144 stamps.

3 0

3 years ago

solve the following quadratic equation by completing the square. if you need to round to the nearest tenth. x² - 20x = -75

lesantik [10]

The Answer should be either x=15 or x=5 I got both.

5 0

3 years ago

Luisa hiked 7 miles of 21-mile trail. what percent of the trail did she hike

7nadin3 [17]

If I'm correct she hiked 1.47 miles of the trail in percentages

5 0

3 years ago

What is the product of (2x-7) and (3x + 3)?

eduard

<h3>✒️EVALUATION </h3>

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$\large\sf\underline{Problem:}$

What is the product of (2x-7) and (3x + 3)?

A. 6x2 + 15x-21
B. 6x2 - 15x - 21
C. 6x2 + 15x + 21
D. 6x2 - 15x + 21

==================================

$\large\sf\underline{Answer:}$

$\qquad \qquad \huge \rm Letter\:B.$

*Please read and understand my solution. Don't just rely on my direct answer*

==================================

$\large\sf\underline{Solution:}$

Here we have the given choices:

A. 6x2 + 15x-21
B. 6x2 - 15x - 21
C. 6x2 + 15x + 21
D. 6x2 - 15x + 21

Solve this equation using the distributive property,where you multiply each term to get the number.

$\begin{gathered} \rm2x - 7 = \boxed{ 6} \: \bigg| \small\boxed{\: 6 {x}^{2} } \\ \rm (7)(3) = \boxed{21} \bigg | \boxed{\: 21 x} \\ \\ \qquad \rm6x^{2}+(6x- 21x)-21 \\ \qquad \boxed{ \rm6 {x}^{2} + 15x - 21}\end{gathered}$

Therefore, the correct option is letter B.

==================================

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3 0

2 years ago