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4vir4ik [10]
4 years ago
10

which is the equation of the given line in slope-intercept form a. y = -1/4x 1 b. y = -4x 1 c. y = 4x - 1 d. y = 4x 1

Mathematics
1 answer:
Delvig [45]4 years ago
3 0
C. demonstrates an equation given in slope-intercept form because it has the y on one side of the equation and the slope on the other along with the y intercept. 
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You and your friend are saving for a trip.you have $250 and are saving $60 a week. Your friend has $300 and saves $50 a week.Aft
Nimfa-mama [501]

Answer: 5 weeks

Step-by-step explanation:

$60 times 5 equals $300.

$250 + $300 = $550.

----------------------------------------------

$50 times 5 equals $250.

$300 + $250 = $550.

$550 = $550.

The equation is true.

8 0
3 years ago
Solve the equation for y <br><br> 5 ( y + 1 ) = 30 <br><br> y = ??
nexus9112 [7]
Hi again :)

5(y + 1) = 30
Once again, use the distributive property
(5)(y) + (5)(1) = 30
5y + 5 = 30
Add -5 to both sides
5y + 5 - 5 = 30 - 5
5y = 25
Divide both sides by 5
5y/5 = 25/5
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Best of luck!
5 0
4 years ago
Read 2 more answers
What is an equation of a circle whose center is at (2, -4) and is tangent to the line x = -2
n200080 [17]

Answer:

(x-2)^{2} +(y+4)^{2} = \frac{4}{5}

Step-by-step explanation:

Given that the center of the circle is: (2, -4)

tangent to the line x = -2

The equation of a circle has the following formula:

(x-a)^{2} +(y-b)^{2} = r^{2} where a, b is the  center and r is the radius

The distance between the circle and the tangent line is:

d = \frac{2*1 + 2}{\sqrt{2^{2}+4^{2}}   } = 2\frac{\sqrt{5} }{5}

d = r so d^{2} =r^{2} = (2\frac{\sqrt{5} }{5})^{2} = \frac{4}{5}

the equation of the circle is:

(x-2)^{2} +(y+4)^{2} = \frac{4}{5}

8 0
3 years ago
3a-3/a+6=9/6 what is a
Gekata [30.6K]

Answer:

a=1/2

Step-by-step explanation:

8 0
3 years ago
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A system of equations is shown.<br><br> 7k+4l=20−8k+2l=10 <br><br> What is the value of k?
olga nikolaevna [1]
The value of k is 30/23
8 0
3 years ago
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