x = All real numbers or 0.
First you should distribute both sides of the equation. This gives you 42x+42=42x+42.
Then, subtract 42 from both sides. This gives you 42x=42x.
Now, divide 42 on both sides. This gives you x=0 or all real numbers.
Answer:
have a great weekend too much work did it to you and your kids in a few months or more and w this much work did I do this for a long
Answer:
-14.54, 2.54
Step-by-step explanation:
Solve by using the quadratic forumla
Answer:
The area of the rectangle is 2820 square inches. The length is 60 inches. The width is 47 inches.
Step-by-step explanation:
Since we know the equation to find the width, we have to set them both to the perimeter of 90 inches. We will use the variable <em>x</em> to represent the length.
<em>x + x - 30 = 90</em>
<em>2x - 30 = 90</em>
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You would then subtract 30 from both sides.
<em>2x = 60</em>
Divide by 2 on both sides, finding that the length (x) is 30 inches.
<em> x = 30 inches.</em>
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Then, subtract 13 inches from the length to find your width.
<em>60 - 13 = 47 inches</em>
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To find your area, you would multiply both of your factors (length and width) together.
<em> 60 x 47 = 2,820</em>
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And those are your answers!
The value of y when x=8 and z = 1/4 is 1 based on the joint variation
<h3>How to determine the value of y?</h3>
The variation is given as
A joint variation
Such that y varies jointly as x and z
This means that
y = kxz
Where k is the constant of variation
From the question, we have
y=15 when x=5 and z=6
This means that
15 = k * 5 * 6
So, we have
15 = 30k
Evaluate
k = 0.5
Substitute k = 0.5 in y = kxz
y = 0.5xz
When x=8 and z = 1/4, we have
y = 0.5 * 8 * 1/4
Evaluate
y = 1
Hence, the value of y is 1
Read more about variation at
brainly.com/question/6499629
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