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3 years ago

What is 5x + 5 = 3(5x - 4) - 10x ?

2 answers:

8 0

-2.7 bause you subtract 5x on both sides and that would become 5= 3(-4) -10x
3(-4)= -12 and so that will be 5=-12-10x then you add 12 to each side. that would then become 27=-10x But we still need to get rid of the - on the 10x so 10x=-27
so the answer is -2.7.

bixtya [17]3 years ago

4 0

5x + 5= 15x - 12 - 10x
5x+ 5= 5x - 12
You add the 15x and -10x which will give you a 5x then you minus the 5x from the left or right to the other 5x, but it doesn't really matter which 5x you minus (or use) then you will be left with 5 = -12 which gives you a no solution as your answer.

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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor

leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is $0.016 \le C \le 0.404$

Step-by-step explanation:

The sample size is $n = 20$

The number planning to increase workforce is $x = 3$

The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

$p = \frac{x+2}{n+4}$

substituting values

$p = \frac{3+2}{20+4}$

$p =0.21$

The z-critical value at confidence level of 98% is

$z_{c}=z_{0.98} = 2.33$

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

$C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }$

substituting values

$C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }$

$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

7 0

3 years ago

Find the maximum profit and the number of units that must be sold in order to yield the maximum profit for the following: R(x)=

levacccp [35]

Answer:

16x+2-0.1^2

Step-by-step explanation:

20x-0.1x^2-4x+2

16x+2-0.1x^2

5 0

3 years ago

How do I solve this question

Naddik [55]

I am really sure it wants you to find 2 numbers that when you multiply those two numbers they equal the top number and when you add the two numbers they equal the bottom number.

in that case the two numbers are 6 and 6

3 0

3 years ago

Finding domain f(x)=3x+1/x-5

arlik [135]

The function is undefinded if the denominator, x-5, equals 0.
So $x-5 \neq 0 \\ 
x \neq 5$ .
The domain is $x \neq 5$ .
In interval notation, this is (-infinity, 5) u (5, infinity).

4 0

3 years ago

Does ‘x-2’ represent two more then a number? If not how can you make this true?

const2013 [10]

No because it’s a subtraction problem. If we want to make this true we would have to do the inverse application which is addition to make it x+2

8 0

3 years ago