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melamori03 [73]
3 years ago
6

Solve each system of equations using a matrix x+y=4 3x+y=6

Mathematics
1 answer:
Dvinal [7]3 years ago
3 0

Answer:

hope it will help you.

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How many whole-number solutions does the inequality |x-5|≤8 have?
-BARSIC- [3]
The answer is -3 to 13
6 0
3 years ago
Given the function f(x) = 3|x – 2| + 6, for what values of x is f(x) = 18?
Gwar [14]

Answer:

x = - 2, x = 6

Step-by-step explanation:

Given f(x) = 18 we require to solve

3 | x - 2 | + 6 = 18 ( subtract 6 from both sides )

3 | x - 2 | = 12 ( divide both sides by 3 )

| x - 2 | = 4

The absolute value function always returns a positive value, however, the expression inside can be positive or negative, thus

x - 2 = 4 ( add 2 to both sides )

x = 6

OR

- (x - 2) = 4

- x + 2 = 4 ( subtract 2 from both sides )

- x = 2 ( multiply both sides by - 1 )

x = - 2

As a check substitute these values into the left side of the equation and if equal to the right side then they are the solutions

x = 6 → 3|6 - 2| + 6 = 3|4| + 6 = 3(4) + 6 = 12 + 6 = 18 ← True

x = - 2 → 3|- 2 - 2| + 6 = 3|-4| + 6 = 3(4) + 6 = 12 + 6 = 18 ← True

Hence solutions are x = - 2, x = 6

7 0
3 years ago
Read 2 more answers
Haha please help i don't know what I'm doing
tresset_1 [31]

Answer:

(5x+1)(x+7)

Step-by-step explanation:

4x^2+26x+6+x^2+10x

5x^2+36x+7

(5x+1)(x+7)

Prove

5x*x + 5x*7 + 1*x + 1*7

= 5x^2 + 35x + x + 7

= 5x^2 + 36x + 7

4 0
2 years ago
X/4&lt;20.5<br> Solve for x<br> example of type of answer: 12≥x
Musya8 [376]
Solve for x by simplifying both sides of the inequality, then isolating the variable.
Inequality Form:

x<82
6 0
2 years ago
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I need help with the question pictured.​
Anna35 [415]
The correct answer would be option number 2
3 0
3 years ago
Read 2 more answers
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