All categories

4 years ago

Please help ! solve for x A) 27 B) 2 C) 8 D) 12

Mathematics

1 answer:

diamong [38]4 years ago

3 0

Answer:

I think its 2 but Idk how to show work sorry

Step-by-step explanation:

You might be interested in

Y=4x+7 x-intercept: y-intercept:

MAXImum [283]

X=-7/4,0
y=(0,7)
the answers

5 0

4 years ago

Y = 7x + 7 y = -7x + 19 Solve the system algebraically.

shtirl [24]

Hello,

To this question, It's only directly sum the equations:

y + y = 7x - 7x +7+19

2y = 0x + 26

2y = 26

y = 26 ÷ 2

y = 13

Now only to replace y = 13 in the equation of up or of down.

Then stay:

y = 7x + 7

13 = 7x + 7

7x = 13 -7

7x = 6

x = 6 / 7

7 0

4 years ago

What is 23 percent of 134?

igor_vitrenko [27]

23% of 134....turn percent to decimal...." of " means multiply

0.23(134) = 30.82 <==

4 0

3 years ago

Read 2 more answers

A superintendent of a school district conducted a survey to find out the level of job satisfaction among teachers. Out of 53 tea

frez [133]

Answer:

b. 1.15

Step-by-step explanation:

The z statistics is given by:

$Z = \frac{X - p}{s}$

In which X is the found proportion, p is the expected proportion, and s, which is the standard error is $s = \sqrt{\frac{p(1-p)}{n}}$

Out of 53 teachers who replied to the survey, 13 claim they are satisfied with their job.

This means that $X = \frac{13}{53} = 0.2453$

She find that the proportion of satisfied teachers nationally is 18.4%.

This means that $p = 0.184$

Standard error:

p = 0.184, n = 53.

$s = \sqrt{\frac{0.184*0.816}{53}} = 0.0532$

Z-statistic:

$Z = \frac{X - p}{s}$

$Z = \frac{0.2453 - 0.184}{0.0532}$

$Z = 1.15$

The correct answer is:

b. 1.15

5 0

4 years ago

Given the parent function of f(x) = x^4, what change will occur when the function is changed to -f(1/2x) ?

Studentka2010 [4]

We are given with a function equal to f(x) = x^4. When the function is changed to -f(1/2x), the function changes to -f(1/2x) = (1/2 x)^4 equal to (-1/16 x^4). The graph of the function should be opening the opposite way and has a narrower plot. answer is C

7 0

4 years ago

Read 2 more answers