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3 years ago

Can someone help me solve for a ?

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

4 0

Answer:

a=6 or -6

Step-by-step explanation:

Solve the determinant to get a²-36=0

(a-6)(a+6)=0

a=6 or -6

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KIM [24]

The answer is = 7 11/12

7 0

3 years ago

Read 2 more answers

For two independent events, A and B, P(A)equals . 3 andP(B)equals . 2 . a. Find P(Aintersect B). b. Find P(A|B). c. Find

Gnoma [55]

Answer:

a) 0.06

b) 0.3

c) 0.44

Step-by-step explanation:

We are given the following in the question:

A and B are two independent events.

P(A) = 0.3

P(B) = 0.2

a) P(A intersect B)

$P(A\cap B) = P(A)\times P(B) = 0.3\times 0.2 = 0.06$

b) P(A|B)

$P(A|B) = \dfrac{P(A\cap B)}{P(B)} = \dfrac{0.06}{0.2} = 0.3$

c) P(A union B)

$P(A\cup B) = P(A) + P(B) - P(A\cap B)\\P(A\cup B) = 0.3 + 0.2 - 0.06 = 0.44$

3 0

3 years ago

Someone who actually knows what they doing please ‍♀️

Firdavs [7]

Answer:

-2/5

Step-by-step explanation:

$2(4a+1)=3a$

Expand parentheses:

$8a+2=3a \\\\5a=-2 \\\\a=-\dfrac{2}{5}$

Hope this helps!

6 0

3 years ago

Read 2 more answers

Write two linear expressions with a sum of -5x+4

murzikaleks [220]

-10x+8 and 5x-4 is a possible combination. Those are both linear equations when added together will give you -5x+4

6 0

3 years ago

What is the area of the figure?

Paladinen [302]

What you would need to do, is add the area of all the rectangles. The formula is wl or width * length. So find the are of all 3 rectangles, starting from the top:

5*2 = 10

3*2 = 6

5(because the rectangles are the same length)*2=10

10+10+6=26. The area of your rectangle is 26 units

3 0

3 years ago