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3 years ago

Which equation represents a line which is parallel to the line 6x + 7y = –49?

Mathematics

2 answers:

max2010maxim [7]3 years ago

7 0

Step-by-step explanation:

any equation that have the slope of -6/7

DerKrebs [107]3 years ago

3 0

Answer: y= 7/6x-5

Step-by-step explanation:

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Simplify. Remove all perfect squares from inside the square root. √180

miskamm [114]

Answer:

13.42

Step-by-step explanation:

$\sqrt{180} =6\sqrt{5} \\\\6\sqrt{5} =13.42$

3 0

2 years ago

Read 2 more answers

Find the GFC of 56 and 84. A factor tree for 84 is given below. The GCF of 84 and 56 is 7142128 .

guajiro [1.7K]

Answer:

28 is the GCF

Step-by-step explanation:

What I know about GCF is that it's a greatest (G) common (C) factor (F). The GCF of 84 and 56 is 7142128; false.

56- 56, 28, 14, 8, 7, 4, 2, 1.

84- 84, 42, 28, 21, 14, 12, 7, 6, 4, 3, 2, 1.

Hope this helps. :)

8 0

3 years ago

Read 2 more answers

Determine the Cartesian coordinates of the points with polar coordinates (\sqrt{2}, \pi/4 ), (0, \pi), (-1,400\pi), and ( 2\sqrt

yarga [219]

Answer:

Step-by-step explanation:

We have the conversion from polar coordinates to cartesian as

x =rcost and y = rsint where (r,t) are the polar coordinates

Also all trignometric functions are periodic with period = 2pi

Using this we find out

$(\sqrt{2}, \pi/4 ) = (\sqrt{2}cos \pi/4, \sqrt{2}cos \pi/4,)=(1,1)\\ (0, \pi), (-1,400\pi),=(0 cos 1400 \pi, 0 sin 1400\pi)\\= (0, 0)\\\\ ( 2\sqrt{3},- 2\pi / 3) = (2\sqrt{3}, cos2\pi / 3, 2\sqrt{3},sin2\pi / 3))\\=(-\sqrt{3}, 3)$

Thus we converted polar to rectangular coordinates.

Reverse would be

from (x,y) to (r,t) as

$r=\sqrt{x^2+y^2} \\tant = y/x$

8 0

3 years ago

Write a proportion that can be used to find the cost of 10 notebooks if 3 notebooks cost $1.98.

Mariulka [41]

The solution to the problem is as follows:

For 3 notebooks you pay $1.98 so the ratio is 1:0.66.
For 10 notebooks, then we could scale the ratio and it will become 10:6.60. So they will cost you $6.60.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

4 0

3 years ago

4.in a recent year, the population of california was about 2.52x10^7 people. its land area is about 4.05x10^5 km^2. what was the

rjkz [21]

As given;

2.52x10^7 people are living in 4.05x10^5 km^2 area. then for 1km^2, the number of people can be calculated as:
people in 1km^2 = (2.52x10^7) / (4.05x10^5)
=0.62x10^2
or
=6.2x10^1

7 0

3 years ago

Read 2 more answers