3 years ago

What is the equation of the line that passes through the points (-7,-1) and has a slope of 1?

Mathematics

1 answer:

Alinara [238K]3 years ago

6 0

Answer:

y = 1x + 6

Step-by-step explanation:

y = 1x + b

-1 = 1(-7) + b

-1 = -7 + b

6 = b

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Solve the formula D=a+b−c for b in general.

kari74 [83]

Answer:

b = c - a - D

Step-by-step explanation:

$D=a+b−c \\ b = c - a - D$

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3 years ago

Find the equation of the circle in standard form for the given center (h, k) and radius r: (h, k) = (0, 0), r = 4

Ad libitum [116K]

Answer:

$x^2+y^2=16$

Step-by-step explanation:

The equation of a circle with center (h,k) and radius r is given by the formula;

$(x-h)^2+(y-k)^2=r^2$

Given (h,k)=(0,0) and r=4, we substitute the values to obtain;

$(x-0)^2+(y-0)^2=4^2$

The required equation is

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3 years ago

Find the least number by which 243 must be divided to make it a perfect<br> square.

yaroslaw [1]

Answer:

Step-by-step explanation:

Well I hate to break the news but 243 is not a perfect square. I'll work you through it, 243 is not a perfect square because it is not an even number. an even number must end in (0,2,4,6,8)
Step one. Find the square root. the square root of 243 is <em>15.588. </em>
Step two Is it a perfect square. No 243 just cant be a perfect square.
Hope this helped :)

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3 years ago

Please help! Suppose f(x) = x - 4. Find the graph of

Molodets [167]

Answer:

Graph 1 because if you just do the Y coordinate its much easier.

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The sum of a number and its square is 72. Find the number

Vladimir79 [104]

The answer is 8. 8 squared is 64 plus 8 is 72

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