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MATH SOLVE
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Mixture A is 15 percent alcohol, and mixture B is 50 percent alcohol. If the two are poured together to create a 4-gallon mixture that contains 30 percent alcohol, approximately how many gallons of mixture A are in the mixture?A. 1.5B. 1.7C. 2.3D. 2.5E. 3.0
General
8 months ago
If a total are of the chessboard is 144 square inches. What is the area of one shaded square. What is the total area of all the shaded squares and total area of all the white squares.
General
8 months ago
57 first-year teachers and 19 experienced teachers attended a school staff meeting meeting. What percentage of the teachers in the meeting were first-year teachers?Write your answer using a percent sign (%).
General
8 months ago
14. You start an investment account with $3000 and save $100 each month. Write arule to represent the total amount of money you invest into your account as anarithmetic sequence. How much money will you have invested after 12 months?
General
8 months ago
Please, I need help in this ??
General
8 months ago
. In an encyclopedia of language, the author presents five sentences that make a reasonable paragraph regardless of their order. The sentences are listed below. Mark had told him about the foxes. John looked out of the window. Could it be a fox? However, nobody had seen one for months. He thought he saw a shape in the bushes. In how many different orders can the five sentences be arranged?
General
8 months ago
Select the correct answer.What is the average rate of change of f(x), represented by the graph, over the interval [-2, 2]?A. 8B. 2C. 1D. 0E. -1
General
8 months ago
The sum of two numbers, x and y, is 142. Theircould be used to find the numbers?nbers,and y, is 142. Their difference is 14. Which system of equationsx + 142 = y+18.64x + y = 142y = 14B.- 14 = ycx - y = 142x + y = 14D.14x=142 + yy = 14- X+
General
8 months ago
The forestry service personnel at a national forest are estimating the average height of the trees in the forest. They measure the heights of 31 trees and prepare the histogram above. What percentage of the trees are less than 75 feet tall?A. 45.2B. 80.6C. 19.4D. 77.4
General
8 months ago
Trevor is making payments on a car that cost $26,555 he makes 36 equal payments if he runs to equal payments up to the nearest whole dollar about how much will he overpay after 36 months
General
8 months ago
I’m so bad at slope
General
9 months ago
Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order and enter N in any blanks you don't need to use. f(x)=24x2+16x+7[−11]
General
9 months ago
Suppose that a magnet high school includes grades 11 and 12, with half of the students in each grade. 60% of the senior class and 10% of the junior class are taking calculus. Suppose a calculus student is randomly selected to accompany the math teachers to a conference. What is the probability that the student is a junior? (Enter your answer as a fraction.)
General
9 months ago
A fair coin is tossed three times and the events A, B, and C are defined as follows: A:{ At least one head is observed } B:{ At least two heads are observed } C:{ The number of heads observed is odd } Find the following probabilities by summing the probabilities of the appropriate sample points (note that 0 is an even number): (a) P(B) =(b) P(A or B) = (c) P(A or B or C)
General
9 months ago
An article reports that in a sample of 413 male college students, the average number of energy drinks consumed per month was 2.48 with a standard deviation of 4.87, and in a sample of 382 female college students, the average was 1.22 with a standard deviation of 3.23. Can you conclude that the mean number of energy drinks is greater for male students than for female students? Find the P-value and state a conclusion.
General
9 months ago
Since an instant replay system for tennis was introduced at a majorâ tournament, men challenged 1399 refereeâ calls, with the result that 411 of the calls were overturned. Women challenged 759 refereeâ calls, and 211of the calls were overturned. Use a 0.01 significance level to test the claim that men and women have equal success in challenging calls.H0:p1=p2H1:p1 (does not equal) p2Identify the test statistic z=___
General
9 months ago
How many pounds of ground beef are needed to make 80 hamburger patties if each uncooked patty weighs 4.8 ounces?A 10.4 poundsB 24 poundsC 61.4 poundsD 96 pounds
General
9 months ago
The perimeter of a basketball court is 90 meters and the length is 6 meters longer than twice the width. What are the length and width?
General
9 months ago
university administrators are becoming more and more alarmed at the number of hours students work per week while attending the university. To study this issue, one administrator was assigned to examine the relationship between the number of hours worked per week in a semester and that semester's GPA for a random sample of students.In this study, what is the explanatory variable?
General
9 months ago
The velocity function (in meters per second) is given for a particle moving along a line.v(t) = 3t − 8, 0 ≤ t ≤ 3(a) Find the displacement.(b) Find the distance traveled by the particle during the given time interval.
General
9 months ago
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