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Gelneren [198K]
2 years ago
12

The sum of the square of a positive number and the square of 4 more than the number is 40. What is the number?

Mathematics
1 answer:
KengaRu [80]2 years ago
6 0

Answer:

Step-by-step explanation:

2

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solve the following quadratic equation by completing the square. if you need to round to the nearest tenth. x² - 20x = -75
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The Answer should be either x=15 or x=5 I got both.
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3 years ago
Justin is asked to solve the following system of linear equations using the elimination method.
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Alright, lets get started.

Justin is asked to solve the linear equations using elimination method.

By using elimination method means we have to multiply some numbers in our given equations in such a way that the co-efficient of x or y become same in both equations so that we could add or subtract them to cancel one of the term either x or y.

So, given equations are :

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See we have 5x in first equation and -20x in second equation.

So, we try to change 5x into 20 x by multiplying it with 4, both of the equations will have 20 x in common

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4 * (5x-12y) = 4 * 3

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Now both equations could be added and 20 x will be cancelled out and we could easily find the value of y then solve for x.

So, Justin should try to change 5 so that it will be cancels, so option B  :  Answer

Hope it will help :)


3 0
3 years ago
Select the sets of data where it would be better to use a histogram than a
Contact [7]

Answer:

Weight of students in your class

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Step-by-step explanation:

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2 years ago
When angles are complementary the sum of their measures is 90 degrees. Two complementary angles have measured of 2x-10 degrees a
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56° and 34°

complementary angles sum to 90° thus

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divide both sides by 5

x = \frac{110}{5} = 22

angle 2x - 10 = (2 × 22) - 10 = 44 - 10 = 34° and

angle 3x - 10 = (3 × 22) - 10 = 66 - 10 = 56°


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3 years ago
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Step-by-step explanation:

6 0
2 years ago
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