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julia-pushkina [17]
3 years ago
11

X/6 - 7 = -4 what the answer

Mathematics
2 answers:
algol133 years ago
6 0

Answer:

18

Step-by-step explanation:

18/6 = 3

3-7 = -4

babunello [35]3 years ago
6 0

Answer: x = 18

Step-by-step explanation: subscribe its this gamer i have some cool content

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X^2 / y^1 when x=10 and y=5
ASHA 777 [7]

Answer:

X = 20 and Y = 5

Step-by-step explanation:

you're supposed to substitute the numbers it so the problem x * 2 also means 10 * 2 because x = 10 and y * 1 also means 5 * 1 because y = 5

5 0
4 years ago
What is the slope of this graph?<br><br> A −3<br><br> B 3<br><br> C 1/3<br><br> D −1/3
kakasveta [241]
The answer to this is B.
5 0
3 years ago
Read 2 more answers
How many students must be randomly selected to estimate the mean weekly earnings of students at one college? We want 95% confide
kari74 [83]

Answer:

The sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

CI=\bar x\pm z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

The margin of error of a (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

The information provided is:

<em>σ</em> = $60

<em>MOE</em> = $2

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the sample size as follows:

MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

       n=[\frac{z_{\alpha/2}\times \sigma }{MOE}]^{2}

          =[\frac{1.96\times 60}{2}]^{2}

          =3457.44\\\approx 3458

Thus, the sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

8 0
3 years ago
Find the value of x (helppppppppppppoppppppp)
Anna35 [415]
X=121
.......... ... . ......
4 0
3 years ago
Help meeeeeeeeeeeeeee pleaseeeeeee
Rina8888 [55]

Answer: 2.5, 5.4

Step-by-step explanation:

-16t^2 +126t=213\\\\16t^2 -126t+213=0\\\\t =\frac{-(-126) \pm \sqrt{(-126)^2 -4(16)(213)}}{2(16)}\\\\t \approx 2.5, 5.4

8 0
2 years ago
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