A biology class has 29 students. Find the probability that at least two students in the class have the same birthday. For​ simplicity, assume that there are always 365 days in a year and that birth rates are constant throughout the year.​ (Hint: First, determine the probability that no 2 students have the same birthday and then apply the complementation​ rule.)

8.7(0.7+y)

expand

6.09+8.7y

Answer:

[tex] {1.9}^{2} = 1.9 \times 1.9 = 3.61[/tex]

Answer:

[tex]1.9 {}^{2} [/tex]

[tex]=1.9 \times 1.9[/tex]

[tex] = 3.61[/tex]

Step-by-step explanation:

a,it doesn't have variable

b,2x-3=2

2x=2+3

2x=5

2x/2=5/2

x=5/2

Answer: 3 minutes 50.51 seconds

Step-by-step explanation:

10/100 of a second = 0.1 second

So the American's time = 3 minutes 50.61 second - 0.1 second

= 3 minutes 50.51 seconds

Answer:

2537

Step-by-step explanation:

3/5 of 4,283.30 = 2569.98

2569.98 - 19.99 = 2549.99

2549.99 - 12.99 = 2537

Answer:

The average speed is 62.96mph. Hope this helps! :)

Step-by-step explanation:

Answer:

The width would be 3.33 feet. I got this answer by dividing 20 by 6. The area of a Rectangle is (Length times Width) so 6 times 3.33 = 20.

Step-by-step explanation:

Answer:

A. 15.0km/h

Step-by-step explanation:

30km/2hr = 15km/hr

Answer:

A. 15.0km/H hope this helps

Answer:

5

Step-by-step explanation:

[tex]35/a[/tex], when a = 7

Substitute

[tex]35/7[/tex] [tex]=5[/tex]

Answer:

5

Step-by-step explanation:

You substitute 7 for a in the equation.

35/a ——> 35/7

Evaluate it and your answe is 5.

I hope it helps! Have a great day!

Lilac~

Answer: I believe it is 10cm 9cm 9cm

Step-by-step explanation:

Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side

Answer:

[tex]35-x(12-x)[/tex]

Step-by-step explanation:

[tex]35-12x+x^2=35-(12x-x^2)[/tex]

Factor out x from the parenthesis

[tex]35-x(12-x)[/tex]

Hope this helps :)

Have a nice day!

Answer:

[tex](x - 7)(x - 5[/tex]

My solvation is on the picture, Hope it helps and brainliest if correct.

Answer:

12 < x < 13

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

a is 6, b is 11, c is x.

We have to first replace the items in the Theorem, do the exponents, then add.

1) 6^2 + 11^2 = x^2

2) 36 + 121 = x^2

3) 157 = x^2

To finally solve it we must square root everything

4) sqrt(157) = sqrt(x^2)

5) x = 12.52

So x has to be between 12 and 13

Answer:

35 degrees

Step-by-step explanation:

Assuming B is the center of the circle, the measure of arc AC is 70 degrees since the measure of a central angle is equal to the measure of the arc it intercepts.

This means that by the inscribed angle theorem, which states that the measure of an inscribed angle is half the measure of the arc it intercepts, the measure of the desired angle is 35 degrees.

Answer:

AB=8

CD=7

EF=2.4

FA=2

SOLN

ab+cd+ef+fa

8+7+2.4+2

19.4

Answer:

[tex]5x + 3[/tex]

Step-by-step explanation:

(5 × x) - Product of 5 and x

=5x

increased by 3

5x +3

Answer: Your answer is 55% = 11 / 20

Hope this helps!

Answer:

11/20

Step-by-step explanation:

Step 1: We represent the given number as a fraction by dividing it by 100.

Hence, we write it as 55/100.

Step 2: Simplify the fraction by using common factors of numerator and denominator.

Now, 55% can be written as 55 / 100.

On simplifying the above fraction:

55 / 100 = 11 / 20 [Dividing numerator and denominator by their greatest common factor, that is 5.]

Therefore, 55% can be represented as 11/20 in fractional form.

[RevyBreeze]

Answer:

(4xc)-6=2 then c=2

Step-by-step explanation:

because we knew that we had to do 6+2=8 so then 8 divided by 4 = 2 so the answer would be 2!

Answer:

(4c) - 6 = 2

4c - 6 = 2

c = 2

Both equations will work.

Step-by-step explanation:

"The product of 4 and a number" is the same as 4 times that number.

Since the missing number is to be said as c, the correct term for this is 4c

6 less than (4c) is the same as (4c) - 6

We have the left-hand-side of the equation as (4c) - 6

The right-hand side is 2

Now, we have to solve for c.

-Chetan K

Answer:

0

Step-by-step explanation:

Slope can be conceptualized as rise over run.

To get rise, you can see the difference between the two 'y' coordinates. In this case, it's 0 (-5 and -5). At this point, since the numerator of our [tex]\frac{rise}{run}[/tex] fraction is 0, you know it's just gonna be 0 no matter the value of the run.

$3.13 is the answer like it please thanks

Answer:

W: 455 ft

L :.655 ft

Step-by-step explanation:

I did the math if it's wrong I'm so sorry but I'm 99.9% sure it's right.

in not sure if it would be correct but i think it would be c because the lines would eventually cross through eachother

Step-by-step explanation:

Answer:

As x increases, y increases, then y decreases, then y increases again.

Step-by-step explanation:

The relationship between x and y in the graph is as x increases, y increases, then y decreases, then y increases again.

Option C is the correct answer.

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

The graph has the following coordinates.

(0, 0), (3, 3), (4, 0), (5, -4), and (9, 0)

Now,

We see that,

From (0, 0) to (3, 3),

y increases as x increases.

And,

From (3, 3) to (4, 0).

y decreases as x increases.

And,

From (4, 0) to (5, -4).

y decreases as x increases.

And,

From (5, -4) to (9, 0).

y increases as x increases.

Thus,

The relationship between x and y in the graph is as x increases, y increases, then y decreases, then y increases again.

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ2

Answer:

x = 3

Step-by-step explanation:

x^5 = 243

Take the fifth root of each side which is the same as raising each side to th 1/5 power. Also, 243 = 3^5.

x^5 = 3^5

(x^5)^(1/5) = (3^5)^(1/5)

x = 3

Answer:

3

Step-by-step explanation:

x^5= 243

I guess we're looking for x

so what we do is just find the fifth root of 243

and that's 3

Answer: no because that is like

Answer:

27+72x

Step-by-step explanation:

ous5ourskhrskysr

Solution:

Note that:

Solve for x to find the weight of each patty.

The weight of a patty is 4/15 of a pound.

Answer:

4/15

Step-by-step explanation:

Hope this helps! Sorry if I am wrong.

Answer:

Step-by-step explanation:

0.28 is like a percentage.

If so, then you can use 2 examples:

The most simple way of getting it is fractions.

2 examples:

Answer:

a=10

Step-by-step explanation:

Using Pythagoras theorem

[tex] {(a + 2)}^{2} + {( a- 5)}^{2} = {(a + 3)}^{2} [/tex]

[tex] {a}^{2} + 4a + 4 + {a}^{2} - 10a + 25 = {a}^{2} + 6a + 9[/tex]

simplify:

[tex] {a}^{2} - 12a + 20 = 0[/tex]

(a-2)(a-10)=0

hence a= 2 or a=10 however we must reject 2 as the lengths of the triangle cannot be negative eg. the side for a-5 will be equivalent to -3 cm which is not possible for lengths to become negative

Yes, It can be written with commas

It will be,

[tex]378 , 972[/tex]