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1 year ago

Solve |2x + 2| = 10

Mathematics

1 answer:

Vladimir [108]1 year ago

5 0

Answer:

x = - 6 , x = 4

Step-by-step explanation:

the absolute value function always gives a positive value but the expression inside can be positive or negative , that is

2x + 2 = 10 or - (2x + 2) = 10

solving both

2x + 2 = 10 ( subtract 2 from both sides )

2x = 8 ( divide both sides by 2 )

x = 4

- (2x + 2) = 10

- 2x - 2 = 10 ( add 2 to both sides )

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

x = - 6

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Find m+n of this angle.

scoray [572]

Answer:

m + n = 140°

Step-by-step explanation:

∵ The measure of the angle next to n = 40° ⇒ vertically opposite angle with the angle 40°

From parallel lines m , n and angle 40° next to n are interior supplementary means their sum is 180°

∴ m + n + 40° = 180°

∴ m + n = 180 - 40 = 140°

7 0

3 years ago

Can someone please help me please

Artyom0805 [142]

Answer:90%

Step-by-step explanation:

45/50=.9

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3 years ago

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Two quantities are related, as shown in the table:

Rashid [163]

Answer:

$y = \frac{1}{2} x + 2$ .

Step-by-step explanation:

From the given table it is clear that x and y are linearly related.

Now, any two points that satisfy the relation between x and y are sufficient to express the equation.

The first two given points are (2,3), and (4,4).

Therefore, the equation is $\frac{y - 4}{4 - 3} = \frac{x - 4}{4 - 2}$

⇒ $y - 4 = \frac{1}{2} (x - 4)$

⇒ $y - 4 = \frac{1}{2} x - 2$

⇒ $y = \frac{1}{2} x + 2$ . (Answer)

6 0

3 years ago

Is y=-2/5x inverse or direct variation

liraira [26]

Answer:

direct

Step-by-step explanation:

The standard form of an equation representing direct variation is

y = kx ← k is the constant of variation

The standard form of an equation representing inverse variation is

y = $\frac{k}{x}$ ← k is the constant of variation

y = - $\frac{2}{5}$ x ← represents direct variation with k = - $\frac{2}{5}$

3 0

3 years ago

6+8d=7d solve for d.

Margarita [4]

Question -

6 + 8d = 7d

Solution-

6. = 7d - 8d

6. = -d

d. = -6

<h3>Verification </h3>

6 + 8(-6) = 7(-6)

6 - 48. = -42

-42. = -42

LHS= RHS

Hence value of d is -6

hope it helps

4 0

3 years ago

Read 2 more answers