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BaLLatris [955]
3 years ago
6

Expand the following. In other words, remove the parentheses (brackets):

Mathematics
1 answer:
Rasek [7]3 years ago
6 0
The answer would be C
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Solve for |2x + 4|-1=7
Rudik [331]

Answer:

x = - 6 or x = 2

Step-by-step explanation:

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

Given

| 2x + 4 | - 1 = 7 ( add 1 to both sides )

| 2x + 4 | = 8, thus

2x + 4 = 8 ( subtract 4 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

OR

-(2x + 4) = 8

- 2x - 4 = 8 ( add 4 to both sides )

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

x = - 6

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 = 2 → | 4 + 4 | - 1 = | 8 | - 1 = 8 - 1 = 7 ← True

x = - 6 → | - 12 + 4 | - 1 = | - 8 | - 1 = 8 - 1 = 7 ← True

Hence the solutions are x = - 6 or x = 2

6 0
4 years ago
25/5=9/5 divided by 5/1
weeeeeb [17]

9/5= 1.8 and 5/1= 5 so 1.8/5= 0.36 or 36/100 /2 18/50 9/25 answer : .36 or 9/25

6 0
3 years ago
NEED ASAP plz. I will also mark brainiest! Don't just take points, I will report you.
Len [333]

Answer:

A:(-2,-3)

B:(-4.009,1.018) And (-2,-3)

C:x≈0,1.61878812

Step-by-step explanation:

I found the equations

g(x)=e^x+1

p(x)=5/2x+2

f(x)=-2x-7

plugged it in on a graph found the answer to find g(x) all you need to do is know the parent function y=e^2(exponential) and I found where the lines intersect for part A and B and or p(x)=g(x) I did e^x+1=(5/2)x+2

7 0
3 years ago
I Am Thinking of a number. 1/12 of it equals 6. 1/3 of it equals_________.
Lelechka [254]

Answer:

24

Step-by-step explanation:

hello

let's note x the number we are looking for

\dfrac{x}{12}=6\\ x = 6*12=72

so 1/3 of it equals

\dfrac{72}{3}=24

another way to see it is that 12=4*3

so 1/3 of it equals 6*4=24

hope this helps

6 0
3 years ago
A quadrilateral with 4 congruent sides is called a ____.
Natasha2012 [34]
That would be called a square :)
4 0
4 years ago
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