1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ymorist [56]
3 years ago
8

-4.3(9x-2.3)+2.21 i dont know the answer to the problem please help

Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

+10 : (387x + 121

Step-by-step explanation:

You might be interested in
4. Assume that the chances of a basketball player hitting a 3-pointer shot is 0.4 and the probability of hitting a free-throw is
vovikov84 [41]

Answer:

0.0334 = 3.34% probability that the player will make exactly 3 3-pointers and 5-free throws.

Step-by-step explanation:

For each 3-pointer shot, there are only two possible outcomes. Either the player makes it, or the player does not. The same is valid for free throws. This means that both the number of 3-pointers and free throws made are given by binomial distributions.

Since 3-pointers and free throws are independent, first we find the probability of making exactly 3 3-pointers out of 10, then the probability of making exactly 5 free throws out of 10, and then the probability that the player will make exactly 3 3-pointers and 5-free throws is the multiplication of these probabilities.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Probability of making 3 3-pointers out of 10:

The chances of a basketball player hitting a 3-pointer shot is 0.4, which means that p = 0.4. So this is P(X = 3) when n = 10.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{10,3}.(0.4)^{3}.(0.6)^{7} = 0.21499

Probability of making 5 free throws out of 10:

The probability of hitting a free-throw is 0.65, which means that p = 0.65. The probability is P(X = 5) when n = 10.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{10,5}.(0.65)^{5}.(0.35)^{5} = 0.15357

Calculate the probability that the player will make exactly 3 3-pointers and 5-free throws.

0.21499*0.15537 = 0.0334

0.0334 = 3.34% probability that the player will make exactly 3 3-pointers and 5-free throws.

5 0
3 years ago
Please Help I Will Thank You And Give You 5 Stars
enyata [817]

Answer:

The first blank is m, the rest aren’t very clear

Step-by-step explanation:

6 0
3 years ago
Pls help ill give brainly ​
padilas [110]
Bottom answer 2/5 and 7/8
7 0
3 years ago
3.5× 1.5× 2 into a mixed number
soldi70 [24.7K]

Answer: 10.5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
WILL GET BRAILIEST FOR CORRECT ANSWER
Alex Ar [27]

Answer:

x = ± \sqrt{20}

Step-by-step explanation:

Given

x² = 20 ( take the square root of both sides )

x = ± \sqrt{20}

which can be simplified to

x = ± 2\sqrt{5}

[ ± means plus or minus ]

5 0
3 years ago
Other questions:
  • 2.5y+3x=27<br> 5x-2.5y=5
    13·2 answers
  • In the class , 0.48 of the students have brown hair. 3/11 of the students have blonde hair . What percent of students have neith
    15·1 answer
  • The boxed sweets store sells bulk boxes of candy for $20 per box and bulk boxes of gum for $14 per box. How many boxes of candy
    14·1 answer
  • The sum of three times a number and 10 is 31.Find the number.
    11·1 answer
  • I need some help lol
    14·1 answer
  • How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions
    7·1 answer
  • What is the solution to the system of equations? y=-x+5 y=x-1
    9·1 answer
  • Your meal plan allows you 500 dollars to use per month. So far this month, you have used 345 dollars and you have 9 days left on
    9·1 answer
  • The polynomial 24x3 − 54x2 + 44x − 99 is factored by grouping.
    15·1 answer
  • Explain why a + b = d.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!