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kotegsom [21]
3 years ago
12

Is -8x + 10 = 2(5-4x) one solution

Mathematics
1 answer:
Basile [38]3 years ago
3 0
The answer to this is true
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Can someone please help? i don’t know how to solve this.
Charra [1.4K]

Answer:

Hey there!

We have the absolute value of x is greater than two.

Thus, to solve absolute value inequalities, we want to break the inequality down.

We break this down to

x>2

x<-2

Thus, we don't need to simplify this any further, and have our answer.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean isx⎯ ⎯ x¯ = 840 and
gayaneshka [121]

Answer:

(832.156, \ 847.844)

Step-by-step explanation:

Given data :

Sample standard deviation, s = 15

Sample mean, \overline x = 840

n = 23

a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}

$t_{(n-1 , \alpha/2)} \frac{s}{\sqrt n}$

$t_{(n-1, a\pha/2)}=t_{(22,0.01)} = 2.508$

∴ $E = 2.508 \times \frac{15}{\sqrt{23}}$

  $E = 7.844$

So, 98% CI is

$(\overline x - E, \overline x + E)$

(840-7.844 ,  \ 840+7.844)

(832.156, \ 847.844)

4 0
3 years ago
Need help with math plzzzz​
alukav5142 [94]

Step-by-step explanation:

2x-5÷3x+4

multiple and dive the angles

4 0
3 years ago
(2x^3+16x^2-12x+9) ÷ (x+7)
madam [21]
Always eliminate the first one before moving on. Remember to drop down monomials, like you would a normal division problem.

                     2x² + 10x + 18
         __________________
x + 3 | 2x³ + 16x² - 12x + 9
         -(2x³ + 6x²)
         -------------------------------
                    10x² - 12x
                  -(10x² - 30x)
         -----------------------------
                            + 18x + 9
                          - (18x + 54)
                    ----------------------
                                      -45


  2x² + 10x + 18        R: -45/x + 3 is your answer R: = remainder


hope this helps
3 0
3 years ago
Read 2 more answers
Renting a jet ski at Jerry's Water sports cost $20.00 per hour plus a one-time fee of $8.00. Renting jet skis from splash of fun
Korolek [52]

Answer:

1.6 hours

Step-by-step explanation:

The computation of the number of hours is shown below:

For water sports

= 20x + 8

And,For splash of fun

= 25x

Now the cost of both would be same

i.e.

20x + 8 = 25x

8 = 5x

x = 1.6 hours

4 0
2 years ago
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