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2 years ago

Which of the following is true?

Mathematics

1 answer:

kow [346]2 years ago

3 0

Answer:

Step-by-step explanation:

A - Perpendicular lines always touch each other at least once.

B - Parallel lines never touch.

D- Not always true.

C is true. If they are not in the same plane they are skewed lines.

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Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend after-school programs. Of the 200 se

Shalnov [3]

Answer:

Step-by-step explanation:

For every 40 students, you add 7

Ratio:

Students : Students in afterschool programs

40:7

80:14

120:21

160:28

200:35

8 0

2 years ago

How many more students went to summer camp than traveled abroad?

lana66690 [7]

Answer:

Step-by-step explanation:

6 0

2 years ago

Let u = <-9, 4>, v = <8, -5>. Find u - v. <br> URGENT

Pie

To subtract vectors, you simply have to subtract correspondent coordinates.

So, if you have

$u = \langle u_1,\ u_2,\ldots u_n\rangle ,\quad v = \langle v_1,\ v_2,\ldots v_n\rangle$

the subtraction is simply

$u-v = \langle u_1-v_1,\ u_2-v_2,\ldots u_n-v_n\rangle$

So, in your case, we have

$\langle-9,4\rangle-\langle 8,-5\rangle=\langle -9-8, 4+5\rangle=\langle -17,9\rangle$

3 0

2 years ago

What is the mixed number for 200 35/7

Mama L [17]

$\text{Hey there!}$

$\text{What is the mixed number for 200}\dfrac{35}{7}\ ?\\\\\bf{200\dfrac{35}{7}=200\times7= 1400;\ \ 1400 + 35 = 1435}\\\\\text{Your new fraction becomese:}\dfrac{1435}{7}\\\\\bf{\dfrac{1435\div7=205}{7\div7=1}=\dfrac{205}{1}= 205}\\\\\\\\\boxed{\boxed{\bf{Answer: \dfrac{1435}{7} \ or \ \ 205}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}\\\\\\\frak{LoveYourselfFirst:)}$

7 0

2 years ago

What is the volume of the water contained in the cylinder?

Margarita [4]

Answer:

Vf = 118.365 m3

Step-by-step explanation:

Vcil = Pi*[(20)^2]*(100=

Vcil = 125.600 m3

Vesf = (4/3)*Pi*(12)^3

Vesf = 7235 m3

Then

Vf = Vci - Vesf

Vf = 125.600 - 7235

Vf = 118365 m3

Best regards

3 0

3 years ago