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3 years ago

Solve for x can someone help me plzzzz

Mathematics

2 answers:

fomenos3 years ago

5 0

Answer:

Step-by-step explanation:

<h2>Given Question,</h2>

To find the value of x

<h2>Solutuon:</h2>

x + 100 + 34 = 180. [Angle sum property of triangle]

=> x = 180 - 100 - 34

=> x = 46

<h2>Result:</h2>

Hence, required value of x is 46° (Ans)

saul85 [17]3 years ago

3 0

Answer:

x = 46 degrees

Step-by-step explanation:

a triangle has a total of 180 degrees so 100 + 34 = 134 180-134 = 46

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In a random sample of 30 people who rode a roller coaster one day, the mean wait time is 46.7 minutes with a standard deviation

Rainbow [258]

Answer: C. $(29,\ 37.8)$

Step-by-step explanation:

The confidence interval for difference of two population mean is given by :-

$\overline{x}_1-\overline{x}_2\pm z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}}$

Given : Level of significance : $1-\alpha:0.99$

Then , significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=2.576$

$n_1=30\ ;\ n_2=50\\\\\overline{x}_1=46.7\ ;\ \overline{x}_2=13.3\\\\s_1=9.2\ ;\ s_2=1.9$

$46.7-13.3\pm(2.576)\sqrt{\dfrac{9.2^2}{30}+\dfrac{1.9^2}{50}}\approx33.4\pm4.38=(29.02\ ,37.78)\approx(29,\ 37.8)$

Hence, a 99% confidence interval for the difference between the mean wait times of everyone who rode both rides $(29,\ 37.8)$

5 0

4 years ago

A plane intersects this rectangular prism perpendicular to the prism’s base.

Alexandra [31]

A rectangle, presumably, as the cross section is going to be whatever shape the outward faces are (in the case of a vertical cross section like this one)

4 0

3 years ago

Need help plz answer thank you!

AysviL [449]

Answer:

18 days

Step-by-step explanation:

3days to consume 1/2 apple

3days/ 1/2 apple or

6 days to consume 1 apple

So 6 days for 1 apple + another 6 days for another apple + one more six days for another apple = 18 days for 3 apples

6 0

3 years ago

Read 2 more answers

If vector u = <-3.5, -1.5> and vector v = <-1.25, 2.25>, which graph shows the resulting vector for 2v − u?

Sedaia [141]

Answer:

Step-by-step explanation:

We know that vector addition is scalar addition.

Given vectors are u = <-3.5, -1.5> and v = <-1.25, 2.25>

2v = < -2.5, 4.5>

2v - u = < -2.5, 4.5> - <-3.5, -1.5> = < -2.5 - (-3.5) , 4.5 -(-1.5) >

2v-u = < 1 , 6 >

This vector is basically i + 6j which is drawn in option D

8 0

3 years ago

3) Tell whether the matrices are inverses of

Anettt [7]

These matrices ARE inverses of each other!

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3 years ago