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
vazorg [7]
3 years ago
15

I need help on this question. I tried finding the answer through my own thinking and the Internet, but I still couldn't get it.

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

your answer is 3x2+10x−7

Step-by-step explanation:

You might be interested in
a box half full of apples weighs 40kg and the same box one fifth full weighs 22kg. what does the box weigh when empty?
likoan [24]
So in order to answer your question  we calculate 40 - 22 wich gives us the answer of 18, so now we can say that 4/5 of apples weight 18 so now 18 / 4 = 4,5; 4,5 * 5 = 22,5 wich is the weight of apples you can put in the box, to know the answer we deduct the greatest weight of apples only from the weight of the box with those apples so, 40 - 22,5 = 17,5
so the answer to your question is 17,5
i hope i helped you
6 0
3 years ago
×+7 = -3× solve for x
Ber [7]

Answer:

this is not a equation.

Step-by-step explanation:

sorry. Do you mean y+7=-3x or something?

7 0
2 years ago
If a car travels 48 miles per hour, ABOUT how many miles does it travel in 5 hours?<br><br> Thanks!!
zimovet [89]
240, just multiply 48 by 5
5 0
2 years ago
Read 2 more answers
Several years​ ago, 50​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
galina1969 [7]

Answer:

The 95% confidence interval for the proportion of parents that are satisfied with their children's education is (0.4118, 0.4618). 0.5 is not part of the confidence interval, so this represents evidence that​ parents' attitudes toward the quality of education have changed.

Step-by-step explanation:

We have to see if 50% = 0.5 is part of the confidence interval.

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 1095, \pi = \frac{478}{1095} = 0.4365

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4365 - 1.96\sqrt{\frac{0.4365*0.5635}{1095}} = 0.4118

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4365 + 1.96\sqrt{\frac{0.4365*0.5635}{1095}} = 0.4612

The 95% confidence interval for the proportion of parents that are satisfied with their children's education is (0.4118, 0.4618). 0.5 is not part of the confidence interval, so this represents evidence that​ parents' attitudes toward the quality of education have changed.

5 0
2 years ago
A beverage is made by mixing 1 part of water with 3 parts of fruit juice. How many parts of water are mixed with 1 part of fruit
Sidana [21]
Answer is A. 1/3 !!!
8 0
2 years ago
Read 2 more answers
Other questions:
  • Isla walked 3/4 miles each way to and from the school Wednesday. How many miles did Isla walk that day?
    10·2 answers
  • N this graph, which transformation can produce quadrilateral A′B′C′D′ from quadrilateral ABCD?
    7·2 answers
  • 5-78 what does that give me
    8·2 answers
  • josh and Anthony have a lemonade stand.They charge $1 for 2 cups of lemonade.they sell 14 cups each afternoon.is it reasonable t
    15·1 answer
  • When a number x is multiplied by 6, the result is 3/8.
    10·2 answers
  • I have no clue how to solve this please help
    7·1 answer
  • Form and solve an equation for x.<br> 6x +40<br> Х<br> 3x + 100
    11·1 answer
  • What is 30 ÷ 14 written as a fraction?
    11·1 answer
  • Patterinsin the multiplication table
    7·1 answer
  • 1. Is each of the following a function?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!