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3 years ago

Alegbra- How can I solve #5?

Mathematics

1 answer:

iren [92.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

For the first one use the law of total probability

B=A∩B+A'∩B

12=9+A∩B

A∩B= 3

For this one you should use demorgans law and the union formula

(A'∩B')=(AUB)'

AUB= A+B-A∩B

6+12-3=15

15'= 24-15 = 9

For this one use demorgans law again

(A'UB')=(A∩B)'

(A∩B)'= 24-A∩B= 24-3= 21

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a 5 inch tall bamboo shoot doubles in height every 3 days. if the equation, y=ab^x where x is the number of doubling periods, re

Lemur [1.5K]

X-doubling periods
Y-height of bamboo
Y=ab^x

1) make a table of values
X Y
1 5
2 10
3 20

2) write equations and substitute
5=ab^1 —> a=5/b^1 —> a=5/b
10=ab^2

Substitute into second equation

10=(5/b)*b^2
10=5b^2/b
10=5b
b=2

Substitute back in

b=2
10=a*2^2
10=4a
a=5/2

End equation:
Y=5/2*2^x

3 0

3 years ago

Which equation represents a line with a slope of -2/3 that passes through point (5, -2)?

serg [7]

Answer:

c) $2x + 3y = 4$

Step-by-step explanation:

−2 = −⅔[5] + b

−3⅓

1⅓ = b

y = −⅔x + 1⅓

Then convert to Standard Form:

y = −⅔x + 1⅓

+⅔x + ⅔x

__________

⅔x + y = 1⅓ [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]

3[⅔x + y = 1⅓]

$2x + 3y = 4$

* 1⅓ = 4⁄3

I am joyous to assist you anytime.

8 0

3 years ago

PLEASE PLEASE HELP ME!

Paladinen [302]

The answer is D
alternate interior angles <span />

3 0

4 years ago

Read 2 more answers

What is the value of f(x) = 9when x = -2?

spin [16.1K]

$f(x)=9\Longrightarrow f(-2)=9$

The function is a constant. No matter the input the output will always be equal to 9.

Hope this helps.

r3t40

6 0

3 years ago

Read 2 more answers

1.The sum of 4 and three times a number is 19

fredd [130]

1) 4 + 3(x) = 19

3x=15

x=5

2) 2x -7 = 9

2x=16

x=8

3) not sure

4) 5 (x + 4) = -15

5x+20=-15

5x=-35

x=-7

6 0

4 years ago