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3 years ago

I have a 1.5% chance of winning when spinning a roulette. Approximately how many times would I have to spin the roulette to win?

Mathematics

1 answer:

fenix001 [56]3 years ago

3 0

Answer:

66-67 times

Step-by-step explanation:

i would go with 67

you just divide 1.5 by a 100

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Isaac records the following temperatures (in degrees Fahrenheit) at noon during one week:

Alecsey [184]

Answer:

first, we put them in order

78,[80],83,(85),86,[87],90

Q1 = 80

Q2 (median) = 85

Q3 = 87

Interquartile range (IQR) = Q3 - Q1 = 87 - 80 = 7 <==

Hope this helps!

5 0

3 years ago

Which expressions are equivalent to 4d+6+2d4d+6+2d ? Choose all answers that apply: Choose all answers that apply: (Choice A) A

Sliva [168]

Answer:

Options A and C are correct choices.

Step-by-step explanation:

We have been given an expression $4d+6+2d$ and we are asked to choose all the equivalent expressions from given choices.

Let us simplify our given expression.

$4d+6+2d=(4d+2d)+6$

$4d+6+2d=6d+6$

Let us see which of our given choices matches with our answer.

A. $2(3d+3)$

Upon using distributive property $a(b+c)=a*b+a*c$ we will get,

$2*3d+2*3$

$6d+6$

Therefore, option A is a correct choice.

B. $6(d+6)$

Upon using distributive property $a(b+c)=a*b+a*c$ we will get,

$6*d+6*6$

$6d+36$

Since this expression is not equivalent to our answer, therefore, option B is not a correct choice.

C. $(3d+3)+(3d+3)$

Upon removing parenthesis we will get,

$3d+3+3d+3$

Upon combining like terms we will get,

$(3d+3d)+(3+3)$

$6d+6$

Therefore, option C is the correct choice.

7 0

3 years ago

Which of the following is a solution of x^2 2x = −2?

dem82 [27]

$x^2+2x=-2\\
x^2+2x+1=-1\\
(x+1)^2=-1\\
x+1=\sqrt{-1}\vee x+1=-\sqrt{1}\\
x=-1+i \vee x=-1-i
$

3 0

3 years ago

Please please help me

Studentka2010 [4]

Answer:

?=38

average rate of change =3 (on the way they partitioned the x's)

Step-by-step explanation:

This is a line because it has the same rise/run ( $\frac{y_2-y_1}{x_2-x_1}$ ) per pair of points.

That is, the following are equal:

$\frac{17-5}{2-(-2)}=\frac{26-17}{5-2}$

$\frac{12}{4}=\frac{9}{3}$

$3=3$

The slope (also called the rate of change) is 3.

This means the calculating of the last pair of points should have the same rise/run.

That is we should have:

$\frac{?-26}{9-5}=3$

$\frac{?-26}{4}=3$

Multiply both sides by 4:

$?-26=12$

Add 26 on both sides:

$?=12+26$

$?=38$

5 0

4 years ago

Find the area, in square feet, of the smallest square. A-169% A-144/12

Aloiza [94]

The answer should be b

7 0

3 years ago