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vivado [14]
3 years ago
6

What is the slope of the graph of 4x - 8y = 11? A. 1/2 B. 2 C. -2 D. - 1/2

Mathematics
1 answer:
Irina18 [472]3 years ago
7 0
Hey there.. Lets solve this problem with steps

→ Basic Standard Formula
y = mx + b

→ Step 1 ( taking x to right side or arranging the equation in standard form)
-8y = -4x + 11

→Step 2 ( keeping y at it's own place by dividing both sides by -8)
y =\frac{-4}{-8} x - \frac{11}{8}
y = \frac{1}{2} x - <span>\frac{11}{8}

So, m = slope in standard formula
So, m = </span>\frac{1}{2}

Correct Option is A.

Hope this helped you..  :)
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the length of a rectangle is 2 inches less than 3 times it width . The perimeter of the rectangle is 124 inch. WHat is the lengt
vitfil [10]

Step-by-step explanation:

let w = width

length = 3w-2

perimeter = 2*length + 2*width

perimeter = 2(3w-2) + 2w

perimeter = 6w - 4 + 2w

perimeter = 8w - 4

perimeter = 124 inch

8w - 4 = 124inch

<em>+4 to each side</em>

8w = 128inch

<em>divide each side by 8</em>

w = 16

length = 3w-2

           = 3(16) - 2

length = 46 inch

5 0
3 years ago
Solve the following system of equations algebraically:<br> y = x^2+7x−4 <br> y = −x−4
oksian1 [2.3K]
Y = x² + 7x - 4
y = -x - 4

x² + 7x - 4 = -x - 4
      + x       + x
x² + 8x - 4 = -4
           + 4  + 4
     x² + 8x = 0
x(x) + x(8) = 0
    x(x + 8) = 0
x = 0  or  x + 8 = 0
                   - 8  - 8
                     x = -8

      y = -x - 4
      y = -0 - 4
      y = 0 - 4
      y = -4
(x, y) = (0, -4)
         or
       y = -x - 4
       y = -(-8) - 4
       y = 8 - 4
       y = 4
 (x, y) = (-8, 4)

The solutions are (0, -4) and (8, -4).
7 0
4 years ago
Read 2 more answers
What is the domain of the function f(x) = x2 5?
professor190 [17]
If the equation is f(x)=2x+5
The domain is 2x+5

If the range is 1, the domain is 7
6 0
3 years ago
Round to the nearest thousandth.<br> 1.0835
Ne4ueva [31]

Answer:

It would be 1.084

5 0
3 years ago
Read 2 more answers
Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.
marta [7]
I think you mean,

\sum_{i=1}^{\infty}(7i+22)

You can use the usual formula,

S_{k}=\frac{k}{2}(a_1+a_k)

That in this case is,

S_{11}=\frac{11}{2}(29+99)=704

Where I have used,

a_k=7\cdot k +22
3 0
3 years ago
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