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3 years ago

13

What is the slope of a line parallel to the line whose equation is 52 +y = -9. Fully

1 answer:

inna [77]3 years ago

5 0

Answer:

Step-by-step explanation:

3.0

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Select the correct answer. Sean and Colleen are raking leaves in their yard. Working together, they can clear the yard of leaves

Lera25 [3.4K]

Answer:

40 minutes

Step-by-step explanation:

Let c represent the number of minutes it would take colleen to finish the job when he is working alone. Hence, it can be represented by the equation:

$\frac{1}{c}+\frac{1}{c+20} =\frac{1}{24} \\\\Finding\ the\ L.C.M\ of\ the\ fraction\ to\ get\ 24c(c+20)\ as\ the\ L.C.M.\\Multiply\ the\ whole\ equation\ by\ 24c(c+20):\\\\\frac{1}{c}(24c(c+20))+\frac{1}{c+20}(24c(c+20)) =\frac{1}{24}(24c(c+20)) \\\\24c+480+24c=c^2+20c\\\\48c+480=c^2+20c\\\\c^2+20c-48c-480=0\\\\c^2-28c-480=0$

Solving the quadratic equation to get c gives:

c = -12 and c = 40

Since the time cannot be negative, hence c = 40 minutes.

It would take colleen 40 minutes to clear the yard of leaves alone

6 0

3 years ago

When written in standard form, the quadratic equation, x2 - 2x - 35 = 0, is equivalent to y = (x - 1)2 - 36. What is the vertex

horrorfan [7]

y = a(x - b)^2 + c has vertex (b , c)

so here the vertex is (1, -36)

6 0

3 years ago

Chang is 6 inches taller than nancy. Use n for nancy’s height in inches. Write an expression to represent chang's height. Then e

Irina-Kira [14]

Answer:

Expression Chang:

N+6

If N = 60

Then 60+6=66

Chang is 66 inches

Step-by-step explanation:

3 0

2 years ago

U.S. soybeans average 39% protein. A bushel of soybeans weighs 60 lbs. How many pounds of protein are in a bushel? A 120-acre fi

Salsk061 [2.6K]

Answer:

Step-by-step explanation:

7 0

2 years ago

How to solve this I don’t get this material

Nata [24]

6^2+(24/6+3^2)
First, solve the powers.
6^2=6*6=36
3^2=3*3=9
Now substitute.
36+(24/6+9)
Solve the parentheses.
36+(4+9)
Then, solve.
36+4+9=49

4 0

3 years ago