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Soloha48 [4]
3 years ago
7

Which equation represents a line which is parallel to the line x+4y=-20x+4y=−20?

Mathematics
1 answer:
g100num [7]3 years ago
7 0

Answer:

y=7x+3, y=7x−6

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Please help please and thank you
Katyanochek1 [597]

Step-by-step explanation:

\text{We know:}\\\\\sin(-\alpha)=-\sin\alpha\\\\\sin(\alpha\pm k\cdot360^o)=\sin\alpha\\\\===============================\\\\\sin(360^o-\theta)=\sin\bigg(-(\theta-360^o)\bigg)=-\sin(\theta-360^o)=-\sin\theta

3 0
3 years ago
Write the sum using summation notation, assuming the suggested pattern continues. 1 - 3 + 9 - 27 + ...
meriva
There is no sum for this geometric series. it diverges rather than converges due to the absolute value of the common ratio (r), which is -3, being 3. for a geometric series to have a sum (to converge), the absolute value of r must be less than 1. 
(you find r by dividing a2/a1, a3/a2, etc.)
hope this helps
4 0
3 years ago
Read 2 more answers
What is the interval in which this function is positive?
NeX [460]

Answer:

(-∞,∞)

Step-by-step explanation:

It is positive for all x

7 0
3 years ago
Instructions: Find the lengths of the other two sides of the isosceles right triangle below.
Alexandra [31]

Given:

The ratio of 45-45-90 triangle is x:x:x\sqrt{2}.

The hypotenuse of the given isosceles right triangle is 7\sqrt{2}.

To find:

The lengths of the other two sides of the given isosceles right triangle.

Solution:

Let l be the lengths of the other two sides of the given isosceles right triangle.

From the given information if is clear that he ratio of equal side and hypotenuse is x:x\sqrt{2}. So,

\dfrac{x}{x\sqrt{2}}=\dfrac{l}{7\sqrt{2}}

\dfrac{1}{\sqrt{2}}=\dfrac{l}{7\sqrt{2}}

\dfrac{7\sqrt{2}}{\sqrt{2}}=l

7=l

Therefore, the lengths of the other two sides of the given isosceles right triangle are 7 units.

6 0
3 years ago
Solve for x and simplify answer as much as possible
pantera1 [17]

Answer:

x=-1

Step-by-step explanation:

4=6+2x

Flip the equation:

2x+6=4

Subtract 6 from both sides:

3x+6-6=4-6

2x=-2

Divide both sides by 2:

2x/2=-2/2

x=-1

3 0
2 years ago
Read 2 more answers
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