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use distributive property to write in expanded form 3(6+7)=
General
3 months ago
A ship leaves port at 12:30 pm and travels Upper N 55 degrees Upper E at the rate of 8 mph. Another ship leaves the same port at 1:30 pm and travels Upper N 30 degrees Upper W at the rate of 10 mph. How far apart in miles are the ships at 2:00 pm ?
General
3 months ago
The lengths of the sides of a quadrilateral are in extended ratio 1:1:2:3. the perimeter is 56 feet what are the lengths of the sides
General
3 months ago
What is the number if 6/7 of 28 is equal to 30% of that number
General
3 months ago
There are 482 studemts in the school and there are two Grade 4 classes: Ms.Ashley's and Mr.Ben's classes. Mrs. Aheley's class had 15 boays and 6 girls. Mr Ben's class ahd 14 girls and 10 boys. In Ms. Ashley's class, 2/3 of the students wear glasses.In Mr. Ben's class, 1/4 of the kids have others siblings in the school.1. What fraction of the students in the school are in grade 4?2. What fraction of the grade 4 students are boys?3. What fraction of the grade 4 students are in Ms. Ashley's class?4. What fraction of the students in Mr. Ben's class that do not have siblings in the same school?5. In Ms. Ashley's class, are there more students that wear glasses or do not wear glasses?
General
3 months ago
Please Help Me!1. Milo bought pounds of red apples and pounds of green apples to make applesauce. How many pounds of apples did he buy in all?a. Write an expression that models the problem.b. What is the LCD of the fractions in your expression? Explain how you found the LCD.c. Evaluate the expression.d. Answer the question asked in the problem.
General
3 months ago
Need help with this math problem
General
3 months ago
Find the area of An equilateral triangle that has sides that are 8 inches long.
General
3 months ago
Jada has p pennies and n nickels that add up to more than 40 cents. She had fewer than 20 coins altogether. Write a system of inequalities that represent how many pennies and nickels that jada could have.
General
3 months ago
Suppose you pay $1.00 to play the following game. A card is drawn from a standard deck. If it is an ace, you recieve $5.00, if it is a king, queen, or jack, you receive $3.00. Otherwise you recieve no money. Find the expected value of your net winning. Use decimal notation for your answer.
General
3 months ago
For each cost function (given in dollars), find (a) the cost,average cost, and marginal cost at a production level of 1000units; (b) the production level that will minimize the averagecost; and c) the minimum average cost.C(x)= 16,000x + 200x+ 4x3/2
General
3 months ago
An open-topped glass aquarium with a square base is designed to hold ~62.5~ 62.5 space, 62, point, 5, space cubic feet of water. What is the minimum possible exterior surface area of the aquarium?
General
3 months ago
Seven thousand lottery tickets are sold for $5 each. One ticket will win $2,000, two tickets will win $750 each, and five tickets will win $100 each. Let X denote the net gain from the purchase of a randomly selected ticket. a. Construct the probability distribution of X. b. Compute the expected value E(X) of X. Interpret its meaning. c. Compute the standard deviation σ of X.
General
3 months ago
Michael earnsMichael earns $9 per hour. He works 28 hours each week. How much does he earn in 6 weeks
General
3 months ago
(5,3) and (-2,-3) slope intercept form
General
3 months ago
David is shoveling driveways to raise money for his SpringBreak trip. Each driveway he shovels, he earns $15. After shoveling 12 driveways, David has $243 saved for his trip. Write an equation to represent the amount David has saved as a function of the number of driveways he has shoveled.
General
3 months ago
QUESTION 1 A researcher compares differences in positivity between participants in a low-, middle-, or upper-middle-class family. If she observes 15 participants in each group, then what are the degrees of freedom for the one-way between-subjects ANOVA?
General
3 months ago
An inspector inspects large truckloads of potatoes to determine the proportion p in the shipment with major defects prior to using the potatoes to make potato chips. If there is clear evidence that this proportion is less than 0.10, she will accept the shipment. To reach a decision, she will test the hypotheses H0: p = 0.10, Ha: p < 0.10. To do so, she selects a simple random sample of 150 potatoes from the more than 3000 potatoes on the truck. Only eight of the potatoes sampled are found to have major defects. What is the value of the large-sample z test statistic?
General
3 months ago
Incline mats, or triangle mats, are offered with different levels of incline to help gymnasts learn basic moves. As the name may suggest, two sides of the mat are right triangles. If the height of the mat is 28 inches shorter than the length of the mat and the hypotenuse is 8 inches longer than the length of the mat, what is the length of the mat?
General
3 months ago
In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre, with a standard deviation of 23.5 bushels of corn. If a study included 1100 acres, about how many would be expected to yield more than 190 bushels of corn per acre?A. 639 acresB. 461 acresC. 419 acresD. 503 acres
General
3 months ago
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