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WINSTONCH [101]
3 years ago
15

-2 | x + 1 | - 4 = 0

Mathematics
2 answers:
nexus9112 [7]3 years ago
7 0

Hello :)

My answer is in the picture with step-by step explanation

Have a nice day :)

Goshia [24]3 years ago
6 0

Hello!

-2|x+1| -4 = 0

-2|x+1| = 4

-2|x+1| /-2 = 4/-2

|x+1| = -2

x+1 = -2 or x+1 = 2

x+1 = -2 for x,

x = -2 - 1 = -3 (✔)

x+1 = 2 for x,

x = 2-1 = 1 (Don't be because instead, -2.2 -4 = -4 - 4 = -8 Don't 0.)

Answer : 3

Have a nice day!

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MrRa [10]

Answer:

Step-by-step explanation:

-1/6-(-9/10)

=-1/6+9/10

=-\frac{1}{6}+\frac{9}{10}\\=\frac{-5+27}{30}\\=\frac{22}{30}\\=\frac{11}{15}

5 0
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Kenneth rode his skateboard 3 miles to the park and it took him 30 minutes. What was his speed
Contact [7]

Answer:

speed =  \frac{distance}{time}  \\  =  \frac{3}{( \frac{30}{60} )}  \\  = 3 \times 2 \\  = 6 \: miles \: per \: hour

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Find the minimum value of the region formed by the system of equations and functions below.
Naily [24]

Answer:

  A.  -12

Step-by-step explanation:

A graph shows the vertices of the feasible region to be (0, 6), (3, 0) and (0, -3). Of these, the one that minimizes f(x, y) is (0, -3). The minimum value is ...

  f(0, -3) = 3·0 + 4(-3) = -12

_____

<em>Comment on the graph</em>

Here, three regions overlap to form the region where solutions are feasible. By reversing the inequality in each of the constraints, <em>the feasible region shows up on the graph as a white space</em>, making it easier to identify. The corner of the feasible region that minimizes the objective function is the one at the bottom, at (0, -3).

7 0
3 years ago
Which of the following constants can be added to x^2+2/3 to form a perfect square trinomial?
Lera25 [3.4K]

As your question is stated, there is no answer!


I'm going to assume the polynomial you meant is:


x^2 + \frac{2}{3} x


To create a perfect square trinomial, take half the coefficient of x and then square it.


\left( \frac{1}{2} \times \frac{2}{3} \right) ^2 = \left(\frac{1}{3} \right) ^2 =\frac{1}{9}


In all problems like this, you want to square half the coefficient of x -- always half.

4 0
3 years ago
What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse is 15 units long?
Deffense [45]
So you have a right angle triangle. You need to use trig for this, as you have two values you can figure out a third.

You know that you have

90 deg. angle
19 deg. angle
Therefor you have 71 deg. angle

sin19 = x/15
15sin19 = x
x = 2.2

Now do Pythagoras c^2-b^2=a^2

a = 14.8

So the sides are 2.2 and 14.8 units long. (If these numbers are wrong tell me and I'll edit answer)

7 0
3 years ago
Read 2 more answers
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