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
Snowcat [4.5K]
3 years ago
15

This is math (the reason why i keep saying that is because im trying to say something with out it saying "add something in text

bar"

Mathematics
2 answers:
lara [203]3 years ago
6 0

Answer:

320 to have a mean of 80

245 so far

75 to qualify

I figured it out you don't need to give me the answer choices

yarga [219]3 years ago
5 0

Steven needs a total of 320 points to have a mean score of 80

Steven has 245 points so far

Steven needs to score at least 75 points on his last test to qualify for the team

You might be interested in
Select the following series as arithmetic, geometric, or neither. 1 + 2 + 3 + 4 + . . . + 10
Novosadov [1.4K]
The series is an arithmetic series.

The progression has a common difference of 1. You can tell because it involves a plus sign, which is indicative of an arithmetic progression,

A geometric progression would include multiplying the numbers by a certain amount. For example:
1, 3, 9, 27 ... 243
In this series, you multiply the numbers by three to get your answer.<span />
7 0
3 years ago
What is the rate of change of the function shown in the table below
weqwewe [10]

Answer: -3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is 10x4= i don't know it pls help
saw5 [17]

Answer: 40

Step-by-step explanation:

10 + 10 + 10 + 10 = 40

4 0
3 years ago
Read 2 more answers
If we sample from a small finite population without​ replacement, the binomial distribution should not be used because the event
seropon [69]

Answer:

5/4324 = 0.001156337

Step-by-step explanation:

To better understand the hyper-geometric distribution consider the following example:

There are 100 senators in the US Congress, and suppose 60 of them are republicans  so 100 - 60 = 40 are democrats).

We extract a random sample of 30 senators and we want to answer this question:

What is the probability that 10 senators in the sample are republicans (and of course, 30 - 10 = 20 democrats)?

The answer using the h-g distribution is:

\large \frac{\binom{60}{10}\binom{100-60}{30-10}}{\binom{100}{30}}=\frac{\binom{60}{10}\binom{40}{20}}{\binom{100}{30}}

Now, imagine there are 56 senators (56 lottery numbers), 6 are republicans (6 winning numbers and 50 losers), we extract a sample of 6 senators (the bettor selects 6 numbers). What is the probability that 4 senators are republicans? (What is the probability that 4 numbers are winners?).

<em>As we see, the situation is exactly the same,</em> but changing the numbers. So the answer would be

\large \frac{\binom{6}{4}\binom{56-6}{6-4}}{\binom{56}{6}}=\frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}

Now compute each combination separately:

\large \binom{6}{4}=\frac{6!}{4!2!}=15\\\\\binom{50}{2}=\frac{50!}{2!48!}=1225\\\\\binom{50}{6}=\frac{50!}{6!44!}=15890700

and now replace the values:

\large \frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}=\frac{15*1225}{15890700}=\frac{18375}{15890700}=\frac{5}{4324}

and that is it.

If the decimal expression is preferred then divide the fractions to get 0.001156337

6 0
3 years ago
A manufacturer of golf clubs makes a profit of $60 per set on a model A set and $45 per set on a model B set. Daily production o
KengaRu [80]

Answer:

If the question does not limit man to produce only one model of club, then the maximized profit of every condition produced under 50 sets daily will be all model A exclusive. such as $60 x 50 (model A) , even just produce 49 set that day, the maximal profit is still $60 x 49.

Step-by-step explanation:

If the question does not limit man to produce only one model of club, then the maximized profit of every condition produced under 50 sets daily will be all model A exclusive. such as $60 x 50 (model A) , even just produce 49 set that day, the maximal profit is still $60 x 49.

Re-consider the logic of the question ....

6 0
3 years ago
Other questions:
  • A random sample of 300 circuits generated 13 defectives .Use the data to test the hypothesisH0: p = 0.05 against H1: p ≠ 0.05. U
    13·1 answer
  • What is the long division for 1. 5)65,749 2. 6)22,176 3. 5)25,931 4. 4)71,568 5. 7)98,694 6. 9)81,844
    15·1 answer
  • Pleaseeee helppp i keep getting the wrong so can somebody give me the correct answer
    15·2 answers
  • Tyler wants to use $300 he has saved to buy a new guitar and join a music club. The guitar costs $140. The music club has a $25
    8·1 answer
  • Tina has 10 times as many stamps as oliva. Altogether, they have 198 stamps. How many stamps does each girl have?
    11·1 answer
  • How this is so hard plz help me on this
    10·1 answer
  • Plz help i don't understand
    14·2 answers
  • MATH HELP ITS TIMED.................
    9·1 answer
  • Please answer accurately and show work if you can
    13·1 answer
  • I NEED HELP NOW MY ASIGNMENT IS DUE BEFORE 8;00 PLZZZ HELP AND PUT A ANSWER THAT HASN'T BEEN USED(05.02)Mr. Morris is going to s
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!