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Softa [21]
3 years ago
9

PLEASE HELP I AM DESPERATE I WILL GIVE THANKS, 5 STARS, AND THE BRAINLIEST!!!

Mathematics
1 answer:
slava [35]3 years ago
7 0

Answer:

-8

Step-by-step explanation:

p(x) = - 2x - 3, x ≤ 0    You would use this equation for finding p(0), since 0 is equal to 0.

p(x) = - 2x - 3, x ≤ 0  ← You can ignore the x≤0 part.

p(0) = - 2(0) - 3              Input the value 0 as x.

p(0) = 0 - 3                    Simplify

p(0) = -3    

Next,

p(x) = -x² - 4, x > 0        You would use this equation for finding p(1), since 1 is greater than 0.    

p(x) = -x² - 4, x > 0    ←  You can ignore the x>0 part.  

p(1) = -(1)² - 4             Input the value 1 as x. 1² is equal to 1 times negative is -1.

p(1) = -1 - 4                 Simplify

p(1) = -5

Then,

p(x) = - 2x - 3, x ≤ 0    You would use this equation for finding p(-2), since -2 is less than 0.

p(x) = - 2x - 3, x ≤ 0  ← You can ignore the x ≤ 0 part.

p(-2) = - 2(-2) - 3          Input the value -2 as x. A negative times a negative is

p(-2) = 4 - 3                  a positive.

p(-2) = 1                        Simplify

Finally, you have to fine the value of \frac{p(0)+p(1)}{p(-2)}

\frac{p(0)+p(1)}{p(-2)}          

\frac{(-3) + (-5)}{(1)}            Input the values of p(0), p(1), and p(-2).

\frac{-8}{1}                      Simplify

-8

The answer is -8.

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In an experiment, the probability that event A occurs is
AnnZ [28]

Answer:

1/63

Step-by-step explanation:

Here is the complete question

In an experiment, the probability that event A occurs is  1 /7  and the probability that event B occurs is  1 /9 .

If A and B are independent events, what is the probability that A and B both occur?

Simplify any fractions.

Solution

the probability of independent events A and B occurring is P(A u B) = P(A)×P(B) where P(A) = probability that event A occurs =  1 /7 and P(B) = probability that event B occurs =  1 /9 .

So,  P(A u B) = P(A)×P(B) = 1/7 × 1/9 = 1/63

7 0
3 years ago
Read 2 more answers
5 × (2 + 1)2 ÷ 3 = what's the answer I wrote this cus it said it was to short to post
shepuryov [24]

Answer:

10

Step-by-step explanation:

Follow PEMDAS

5 (2+1) x 2 divided by 3

calculate within parenthesis

(2+1) : 3

5 x 3 x 2 divided by 3

multiply and divide (left to right)

= 10

* x = times sign

8 0
3 years ago
Dude this should be so easy but this is going in one ear and out the other how do I do this send help ​
kipiarov [429]

Answer:

0.5 hours

Explanation:

Given:

  • speed: 17 miles/hour
  • distance: 8 miles

Formula:

  • time taken = distance ÷ speed

Solve:

  • time taken = 8 ÷ 17 = 0.4706 ≈ 0.5 hours  (rounded to nearest tenth)
6 0
2 years ago
Please help someone I need to turn this in in like 10 mins please helpppppp
konstantin123 [22]

Answer:

3.6 - 0.65 = 2.95

Step-by-step explanation:

subtract

3.6 - 2.95 = 0.65

6 0
3 years ago
Adult tickets to a basketball game cost $5. Student tickets cost $1. A total of $2,465 was collected on the sale of 1,077 ticket
frez [133]
Assign x to adult tickets and y to student tickets, then set up the system
5x+y=2465 and
x+y=1077
You can subtract the second equation from the first to get
4x=1388
=> x=347
Then to find y do 1077-347 to find
y=730

Final answer:
347 adult tickets and 730 student tickets were sold.
Hope I helped :)
4 0
3 years ago
Read 2 more answers
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