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2 years ago

13

7 x 18 = 7 x (10 + _ )

1 answer:

krok68 [10]2 years ago

4 0

7

10

70

140

this is so easy

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Many people believe that the daily change of price of a company's stock on the stock market is a random variable with mean 0 and

Tomtit [17]

Answer:

Step-by-step explanation:

We can use normal aproximation, assuming that the random variables are a lot of that means the sample size is large.

$P(x>105) = P(z>\frac{105-100}{1})=P(z>5)$

Using the normal distribution table,

P(z>5) = 0.00005

Hence, we can conclude that the probability that the stock’s price will exceed 105 after 10 days is very small.

Hope this helps!

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3 years ago

Nuetrik [128]

No.

$\sqrt{45}=3\sqrt{5} \\2\sqrt{20} =2\sqrt5}$

If you add them up you DO NOT GET $5\sqrt{5}.$ According to mathematics, it equals to $7\sqrt{5}$ .

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3 years ago

I need to learncmy 9 year old how to multiply

goldfiish [28.3K]

Answer:

Step-by-step explanation:

get them some multiplication charts and use some examples like oreos or any type of cookies.

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3 years ago

How many times greater is the thickness of a dime than the thickness of a dollar bill? Dime thickness: 0.135 cm Dollar thickness

Mama L [17]

The dime is 12 thicker then your dollar bill

4 0

3 years ago

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On a coordinate plane, rhombus W X Y Z is shown. Point W is at (7, 2), point X is at (5, negative 1), point Y is at (3, 2), and

Otrada [13]

Answer:

$P = 4\sqrt{13}$

Step-by-step explanation:

Given

$W = (7, 2)$

$X = (5, -1)$

$Y = (3, 2)$

$Z =(5, 5)$

Required

The perimeter

To do this, we first calculate the side lengths using distance formula

$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2$

So, we have:

$WX = \sqrt{(5- 7)^2 + (-1 - 2)^2$

$WX = \sqrt{13}$

$XY = \sqrt{(3-5)^2 + (2--1)^2}$

$XY = \sqrt{13}$

$YZ = \sqrt{(5-3)^2 + (5-2)^2}$

$YZ = \sqrt{13}$

$ZW = \sqrt{(7 - 5)^2 + (2 - 5)^2}$

$ZW = \sqrt{13}$

The perimeter is:

$P = WX + XY + YZ + ZW$

$P = \sqrt{13}+\sqrt{13}+\sqrt{13}+\sqrt{13}$

$P = 4\sqrt{13}$

5 0

3 years ago

Read 2 more answers