−6t−7=17 I can't figure out what t is?

Solve the proportion(find the value of x) 7:10::14:x

ArbitrLikvidat [17]

X= 20
Work:

$\frac{7}{10} = \frac{14}{x}$
7 times 2 is 14 so you will
muliltiply 10 by 2 which is 20.

6 0

4 years ago

What is the domain of g (x)=1-2x^2

lord [1]

Given Equation => g(x) = 2x – 1
Now, the problem is we need to find the domain of g.
I believe that all domain are real numbers. Thus, let’s start finding the domain of g

Let’s try -1 as the value of x
=> g(x) = 2x – 1
=> g (-1) = 2 (-1) -1
=> g (-1) = -2 -1
=> g (-1) = -3
Therefore, if the value of x is -1, the domain value of g(x) is -3

Let’s try 2 as value of x
=>=> g(x) = 2x – 1
=> g (2) = 2 (2) -1
=> g (2) = 4 -1
=> g (2) = 3
Therefore, if the value of x is 2, the domain value of g(x) is 2

8 0

4 years ago

The distance of planet Mercury from the Sun is approximately 5.8. 107 kilometers, and the distance of planet Venus from the Sun

lakkis [162]

Answer: 1 is the answer

7 0

3 years ago

The net of a cone is composed of a circle and a triangle wedge triangle

jok3333 [9.3K]

Answer:

I would say triangle. But I am not completely sure!

Step-by-step explanation:

Hope this helps!

6 0

3 years ago

Read 2 more answers

Minor surgery on horses under field conditions requires a reliable short-term anesthetic producing good muscle relaxation, minim

andreev551 [17]

Answer:

$p_v =P(t_{74}$

If we compare the p value and a significance level for example $\alpha=0.1$ we see that $p_v>\alpha$ so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean it's not significantly less than 20 min.

Step-by-step explanation:

Data given and notation

$\bar X=18.81$ represent the average lateral recumbency for the sample

$s=8.4$ represent the sample standard deviation

$n=75$ sample size

$\mu_o =20$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to apply a left tailed test.

What are H0 and Ha for this study?

Null hypothesis: $\mu \geq 20$

Alternative hypothesis : $\mu < 20$

Compute the test statistic

The statistic for this case is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

We can replace in formula (1) the info given like this:

$t=\frac{18.81-20}{\frac{8.4}{\sqrt{75}}}=-1.227$

The degrees of freedom are given by:

$df=n-1=75-1=74$

Give the appropriate conclusion for the test

Since is a one side left tailed test the p value would be:

$p_v =P(t_{74}$

Conclusion

If we compare the p value and a significance level for example $\alpha=0.1$ we see that $p_v>\alpha$ so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean it's not significantly less than 20 min.

3 0

3 years ago