2x-y-3z=7, 3x+y+=10, 5x+y+2z=15

Mathematics

2 answers:

rosijanka [135]2 years ago

7 0

Y 50 I think it is I am not to sure

BARSIC [14]2 years ago

5 0

Step-by-step explanation:

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

<h3>here I have used substitution method and also elimination method in one equation </h3>

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Determine the value of a if one solution to the quadratic equation is x equals 5 + 3/2 I

Sindrei [870]

The value of a is $\frac{-9}{4}$

Step-by-step explanation:

<u>1. Determine the other solution of x</u>

If one value is 5 + $\frac{3}{2}$ then the other value is 5 - $\frac{3}{2}$

<u>2. Use reverse technique to find the equation</u>

(5 + $\frac{3}{2}$ ) (5 - $\frac{3}{2}$ ) = 0

25 - $\frac{-15}{2}$ + $\frac{15}{2}$ - $\frac{9x^{2} }{4}$ = 0

- $\frac{9x^{2} }{4}$ + 25 = 0

<u>3. The equation is</u> - $\frac{9x^{2} }{4}$ + 25 = 0

<u>4. Find the value of a</u>

a is the number with the variable $x^{2}$ therefore it is - $\frac{9}{4}$

Keyword: quadratic equation, solution

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8 0

3 years ago

Can someone help me with is one

ch4aika [34]

Answer:

C is your answer

Step-by-step explanation:

7 0

3 years ago

How find derivative of function: y=arcsin(2x+1)<br> ...?

Setler [38]

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