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Levart [38]
2 years ago
9

Solve: 7|x| = 42 36 –6 or 6 no solution 6

Mathematics
2 answers:
stepan [7]2 years ago
7 0

Answer:

6

Step-by-step explanation:

7×6=42 so 6 is x so this is your answer

Leto [7]2 years ago
3 0

Answer:

-6 or 6

Step-by-step explanation:

7x|x|=42 (divide both sides)

|x|=6 (separate into possible cases)

x=6

x=-6  (the equation has two solutions)

hope this helps!

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A man deposited $ 800 in his account at a bank which offers 6% simple interest per annum. How much interest would he receive on
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Answer:

The answer is Rs.43,200.

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3 years ago
Find f(-5) of f (x) = x + 1<br> 1) 4<br> 2) 5<br> 6) 6
Alex
F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4
7 0
3 years ago
for each line, determine whether the slope is positive, negative, zero or undefined. (this is homework.) ​
Anastasy [175]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve each equation.<br> 1/3a = -5 a = ?<br> 12 - b = 12.5 b = ? <br> -0.1 = -10c c = ?
Rina8888 [55]

Answer:

a = -15, b = -.5, c = -1

Step-by-step explanation:

1/3a = -5 --> multiply each side with 3 --> a = -15

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8 0
3 years ago
An expression is shown below. Which expression is equivalent to the expression shown?
Vera_Pavlovna [14]

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

To find:

The equivalent expression.

Solution:

We have,

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

Using distributive property, we get

=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)

=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y

On combining like terms, we get

=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)

=-2x^2+5y^2+xy+3x+9y

The expression -2x^2+5y^2+xy+3x+9y is equivalent to the given expression.

Therefore, the correct option is A.

6 0
3 years ago
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