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mash [69]
2 years ago
6

Solve the system of equations 4x + 8y = 4 and —2x – 7y = -11 by combining the equations.

Mathematics
1 answer:
masya89 [10]2 years ago
6 0

Answer:the answer is six

Step-by-step explanation:

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Rewrite the polynomial -2x3+4x5-3x2-7 in descending order, using coefficients of 0 for any missing terms
seropon [69]

4x5-2x3-3x2-7 descending means basically the same thing as greatest to least

8 0
2 years ago
When a student sold an Xbox on eBay for $145, she was charged a two-part final value fee: 5.25% of the first $25 of the selling
Contact [7]
Selling Price = $145

Charge on first $25 is 5.25%
5.25% of $25 = \frac{5.25}{100}*25= \frac{5.25}{4} = 1.3125

Charge on rest is 3.25%
rest amount = $145 - $25 = $120
3.25% of $120 = \frac{3.25}{100}*120=3.9

Total\ charge=1.3125+3.9=5.2125 =\boxed{5.21}


6 0
3 years ago
1.The volume of a cube is 3,944.312 cubic centimeters. Find the length of a side. Round your answer to the nearest 10th and writ
eduard
When finding the volume of a cube, you would multiply the length x width x height. To find the volume, you would cube the length of one of the sides. For this problem, think of it as working backward because you're starting with the volume but need to know the length of a side. To do the opposite (or inverse) of cubing, you would instead find the cube root of the volume. The cube root of 3,944.312 cubic cm would give you 15.8 cm.

The formula for the volume of a cylinder is <em>v = \pi r^{2} h. </em>Take the numbers you are given in the problem and put them into the equation to get: <em>v + \pi (3.2 x^{2} )(5). </em>After calculation this equation, you will get an answer of 160.8495. Just round to the nearest tenth to get 160.8.
6 0
3 years ago
What is the minimum value for z =3x-1/2y over feasibility region defined by the constraints shown above
Sergio039 [100]
To obtain the minimum value of z, the first term of the binomial equation should be as small as possible, while the second term should be as large as possible. Thus, you must choose the lowest boundary of x which is 0. Then, choose the highest boundary of y which is 8. So, we substitute this to the equation:

z=3x- \frac{1}{2}y

z=3(0)- \frac{1}{2}(8)=-4

So, the minimum value of z is -4.
4 0
3 years ago
Read 2 more answers
Please helppppp!!!!!!!!!!!
Snezhnost [94]

Answer:

<h2>hope it helps you see the attachment </h2>

8 0
3 years ago
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