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how to solve system of equation from a table
General
2 months ago
A sphere has a diameter of 4(x+3) centimeters and a surface area of 784π square centimeters. Find the value of x.
General
2 months ago
What value of x would make the expression below equal to 8? Photo provided! 20points!
General
2 months ago
how do i factor this trinomial?
General
2 months ago
Find the volume of the toy rocket shown. The rocket consists of a prism and a pyramid
General
2 months ago
Find the surface area of the open top flower box shown
General
2 months ago
Solve the following inequality: 3x + 9 ≤7x -11.
General
2 months ago
5. At the party there were 380 places to sit, including thebenches in the park and the chairs people brought to theparty. Of those seats, 0.45 of them were used by womenand girls. How many seats were used by men and boys? Isthat fraction of the total number of seats less than or greaterthan ? Draw or use a visual fraction model if needed to solve.
General
2 months ago
What is the probability of getting a vowel (a successes) for the spinner? Compute P(3 successes) for 5 spins of the spinner
General
2 months ago
The function h(x) is given below: h(x) ={3,5),(5,-7)(6,-9)(10,-12)(12,16)} which of the following gives h^-1(x) ?
General
2 months ago
A test has multiple choice questions with 5 choices for each answer, only one answer is correct for each question. Suppose a student guesses the answer to each question. Assuming the guesses are independent, find the probability that the student will not guess correctly on any one question.
General
2 months ago
A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. Among the 1500 respondents, 12% chose chocolate pie, and the margin of error was given as plus or minus5 percentage points. What values do ModifyingAbove p with caret, ModifyingAbove q with caret, n, E, and p represent? If the confidence level is 99%, what is the value of alpha?
General
2 months ago
P(x)-x15x-48x + 450, x è 3 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit. O A. 5 hundred thousand B. 3 hundred thousand O C. 8 hundred thousand 0 D. 10 hundred thousand
General
2 months ago
The yearly production of a particular 7 foot plant is 42 pounds of fruits. A 12 foot plant produces 78 pounds. Let h represent the height of this particular plant and p the number of pounds of fruits produced. Use the information to answer the s shown below. ?a) List the ordered pairs? (h,p). What is the ordered pair for the first? plant?
General
2 months ago
Does the following equation determine y to be a function of x? y square=x+3
General
2 months ago
Solve each problem 1)x-27=-(27-x)2)6y-8=2(3y-4)Thank you in advance
General
2 months ago
A 2013 study by pediatricians investigates whether it is better to give children the diphtheria, tetanus and pertussis (DTaP) vaccine in the thigh or the arm. The pediatricians collected the data from two different random samples. The first random sample was collected from children who were given the vaccine in the thigh. The second random sample was collected from children who were given the vaccine in the arm. Pediatricians recorded whether the children had a severe reaction or not. No severe reaction Severe reaction Thigh Observed Expected 4758 4750.9 30 37.1 Arm Observed Expected 8840 8853.1 76 68.9 Reference: Jackson, L.A., Peterson, D., Nelson, J.C., et al. (13 co-authors). 2013. Vaccination site and risk of local reactions in children one through six years of age. Pediatrics 131: 283-289. Pediatricians conducted a chi-square test of independence. The chi-square test statistic for this data is 2.0609 with a P-value of 0.1511. What can the pediatricians conclude?
General
2 months ago
An environmental scientist wanted to test if the mean concentration of carbon trioxide in blue water exceeds the safe level of 22 blops per cubic centimeter of water. She collected 64 samples of blue water, and obtained a sample mean of 26.935 blops and a sample standard deviation of 14 blops. At significance level 0.05, can it be concluded that the true mean concentration exceeds 22 blops? A and B are independent events
General
2 months ago
Suppose a1=12−12,a2=23−13,a3=34−14,a4=45−15,a5=56−16. a) Find an explicit formula for an: . b) Determine whether the sequence is convergent or divergent: . (Enter "convergent" or "divergent" as appropriate.)
General
2 months ago
On an exam, the mean score is 78 points, with a standard deviation of 6 points. Assuming normal distribution of the scores, approximately what percentage of students received more than 85?A.12% B.17% C.8% D.9% E.None of the above
General
2 months ago
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