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2 years ago

Can someone help me please?

Mathematics

2 answers:

ladessa [460]2 years ago

4 0

Answer:

25/28 thats your answer

Vera_Pavlovna [14]2 years ago

4 0

The answer is 25/28
You can use the popcorn trick to do mixed numbers

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Solve for x.

dalvyx [7]

$\huge \boxed{\mathfrak{Question} \downarrow}$

Solve for x.

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Okay, so from the given figure we can see that, < FAE & < FAB forms a linear pair. In a linear pair, the 2 angles will together sum up to 180°. So,

< FAE = 4x°
< FAB = 2x°

__________________

From the explanation, we can understand that,

Sum of the linear pair = 180°

< FAE + < FAB = 180°

4x° + 2x° = 180°

6x° = 180°

x° = 180 ÷ 6

x = 30°.

__________________

The value of x will be 30° (3rd option).

__________________

NOTE : Here, the lesser than symbol ( < ) stands for 'angle'.

7 0

3 years ago

The mean per capita income is 23,037 dollars per annum with a variance of 149,769. What is the probability that the sample mean

mihalych1998 [28]

Answer:

Probability that the sample mean would be less than 23,013 dollars is 0.2358.

Step-by-step explanation:

We are given that the mean per capita income is 23,037 dollars per annum with a variance of 149,769.

Also, a sample of 134 persons is randomly selected.

Firstly, Let $\bar X$ = sample mean

The z-score probability distribution for sample mean is given by;

Z = $\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\mu$ = population mean per capita income = 23,037 dollars p.a.

$\sigma$ = standard deviation = $\sqrt{Variance}$ = $\sqrt{149,769}$ = 387 dollars p.a

n = sample of persons = 134

So, probability that the sample mean would be less than 23,013 dollars is given by = P( $\bar X$ < 23,013 dollars)

P( $\bar X$ < 23,013) = P( $\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } }$ < $\frac{23,013-23,037}{\frac{387}{\sqrt{134} } }$ ) = P(Z < -0.72) = 1 - P(Z $\leq$ 0.72)

= 1 - 0.7642 = 0.2358

The above probability is calculated using the z-score table.

Therefore, probability that the sample mean would be less than 23013 dollars if a sample of 134 persons is randomly selected is 0.2358.

4 0

2 years ago

I need to know how to graph and use a table to solve for y=3x+0

olga nikolaevna [1]

Answer:

Step-by-step explanation:

On a table, you'd have two columns: one for your input(x) and one for your output(y). If given an x value, put it into the equation to solve for y, and if you have a y value, put it into the equation for x. You can also come up with your own x values and put them into the equation if you need to create a table from scratch I'm not sure what you're asking but this will help you fill in a table. Here's and example for this equation.

X Y

1 3

2 6

3 9

Graphs are pretty simple. Just find a value on the x-axis (horizontal), find the point on the line above or below this value, and look at what number it is for the y value. You can do this backwards if you need to find y when given x.

5 0

3 years ago

Find the surface point of the rectangular prism

xxTIMURxx [149]

Answer:

76 ft2

Step-by-step explanation:

2*4*2 + 5*4*2 + 2*5*2= 76 ft2

5 0

3 years ago

What is the value of 6.7x 0.54=

xxMikexx [17]

Answer:

The answer is 3.618

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers