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2 years ago

(x³)² × x⁴ = ?(it won't lemme type short)

Mathematics

1 answer:

Alex73 [517]2 years ago

4 0

Answer:

We have x^3^2 which is x^3*2 = x*6 times x*4 which is x*10

Hope this helped and brainliest please

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1 2/7 minus what equals 6/7

Bad White [126]

Change all mixed fractions to improper fractions.

1 2/7 = 7/7 + 2/7 = 9/7.

Subtract

9/7 - 6/7 = 3/7

3/7 is your answer

Hope this helps

5 0

3 years ago

Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. Th

Verizon [17]

Answer:

$(21.9-19.8) -1.966\sqrt{\frac{3.4^2}{200} +\frac{3.5^2}{200}}= 1.422$

$(21.9-19.8) -1.966 \sqrt{\frac{3.4^2}{200} +\frac{3.5^2}{200}}= 2.778$

And we are 95% confident that the true difference means are between $1.422 \leq \mu_1 -\mu_2 \leq 2.778$

Step-by-step explanation:

We know the following info:

$\bar X_1 = 21.9$ sample mean for group 1

$\bar X_2 = 19.8$ sample mean for group 2

$s_1 = 3.4$ sample standard deviation for group 1

$s_2 = 3.5$ sample standard deviation for group 2

$n_1 = 200$ sample size group 1

$n_2 = 200$ sample size group 2

We want to find a confidence interval for the difference of means and the correct formula to do this is:

$(\bar X_1 -\bar X_2) \pm t_{\alpha/2} \sqrt{\frac{s^2_1}{n_1} +\frac{s^2_2}{n_2}}$

Now we just need to find the critical value. The confidence level is 0.95 then the significance is $1-0.95 =0.05$ and $\alpha/2 =0.025$ . The degrees of freedom are given by:

$df= n_1 +n_2 -2= 200+200-2= 398$

The critical value for this case would be : $t_{\alpha/2}=1.966$

And replacing into the confidence interval formula we got:

$(21.9-19.8) -1.966\sqrt{\frac{3.4^2}{200} +\frac{3.5^2}{200}}= 1.422$

$(21.9-19.8) -1.966 \sqrt{\frac{3.4^2}{200} +\frac{3.5^2}{200}}= 2.778$

And we are 95% confident that the true difference means are between $1.422 \leq \mu_1 -\mu_2 \leq 2.778$

5 0

3 years ago

Six values on the number line above are marked with letters. Which letters represent integers when the value on the number line

r-ruslan [8.4K]

Answer:

A) L, N, O, P

Step-by-step explanation:

The even numbers on the number line are marked by the letters L, N, O, P.

_____

If a number gives an integer result when divided by 2, it is an even number. Zero is an even number, giving the integer zero when divided by 2.

6 0

2 years ago

Please help me asap please and ty

iren2701 [21]

Answer:

(3) k = 2/10

(4) -24

Step-by-step explanation:

6 0

2 years ago

The function f(x) = StartRoot negative x EndRoot is shown on the graph. On a coordinate plane, an absolute value graph starts at

My name is Ann [436]

Answer:

im am in grade 6

Step-by-step explanation:

sorry......... i apologize.

7 0

1 year ago

Read 2 more answers

(x³)² × x⁴ = ?(it won't lemme type short)​

(x³)² × x⁴ = ?(it won't lemme type short)