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pshichka [43]
3 years ago
11

In a group of 35 students, 11 study both Art and Biology 11 study Biology but not Art. 10 study neither subject. Given that a ra

ndomly selected student studies Art, what is the probability the student studies Art and Biology?​
Mathematics
2 answers:
aliina [53]3 years ago
8 0

Answer:

I did not now but anobody help you l bless you someone help

erastova [34]3 years ago
6 0
11 student that study both / 35 student in total
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A man awoke to a temperature of 40 °F.By the time he arrived at work,the temperature had increased by 11°F.At lunch ,the tempera
anzhelika [568]
The tenperature when he arrived home was 26
5 0
3 years ago
<img src="https://tex.z-dn.net/?f=f%28n%29%3D3%5En" id="TexFormula1" title="f(n)=3^n" alt="f(n)=3^n" align="absmiddle" class="la
andrezito [222]

Answer:

24(f(n))

Step-by-step explanation:

f(n+3) = 3^{n+3}\\f(n+1) = 3^{n+1}

so

f(n+3) - f(n+1) = 3^{n+3} - 3^{n+1}

= 27(3^n) - 3(3^n)

= 24(3^n)

= 24(f(n))

hope this helped! :)

4 0
2 years ago
Use Cramer's Rule to solve each system.<br> 5x – 3y = 8<br> -2x - y = 10
zlopas [31]

Answer:

-2, -6

Step-by-step explanation:

using cramer rule

5    -3    

-2   -1    

calculatiing the determinant = (5 x-1) - (-3x-2) = -5 -(6) = -5-6=-11

using cramer rule

to calculate x we change the coefficient of x with the answer (8,10)

8   -3

10   -1

we calculate determinant = (8x-1)-(-3x10) = -8-(-30) = -8+30 =22

to calculate x

22/-11= -2

to calculate y we change the coefficient of y with the answer (8,10)

5   8

-2   10

we calculate determinant = (5x10)-(8x-2) = 50 -(-16) = 50 +16=66

to calculate y

66/-11= -6

6 0
3 years ago
Read 2 more answers
From the set {30, 42, 84}, use substitution to determine which value of x makes the equation true.
Maru [420]
2,520/x = 60
x = 42, which means your answer is B.

2,520/42 = 60
8 0
2 years ago
Are the lines y = –x – 4 and 5x -5y = 20 perpendicular? Explain.
Zarrin [17]

Answer:

yes

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes = - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - x - 4 ← is in slope- intercept form

with slope m = - 1

5x - 5y = 20 ( subtract 5x from both sides )

- 5y = - 5x + 20 ( divide all terms by - 5 )

y = x - 4 ← in slope- intercept form

with slope m = 1

Thus product of their slopes is - 1 × 1 = - 1

Therefore the lines are perpendicular

7 0
3 years ago
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