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9(34x-9)-7
General
5 months ago
A canner has 2 products: citrus and tropical, the citrus has 70% orange juice and 30% mango juice, the tropical has 80% mango juice and 20% orange juice. How many liters of each product can I pack if I have 450 of orange and 800 liters of mango?
General
5 months ago
Solve. 0.006(9-k) + 0.09(k-4) = 1.
General
5 months ago
2a+4c+6a
General
5 months ago
8x+4y-2x+y
General
5 months ago
Combine like terms. 2, y, cubed, minus, 4, x, squared, minus, 4, minus, 1, plus, 3, x, squared, minus, 3, y, cubed, minus, y, cubed 2 y 3 − 4 x 2 − 4 − 1 + 3 x 2 − 3 y 3 − y 3 2y 3 −4x 2 −4−1+3x 2 −3y 3 −y 3
General
5 months ago
Two point charges are located on the positive x-axis of a coordinate system. Charge q1 = 1.0 nC is 2.0 cm from the origin and charge q2 = -3.0 nC is 4.0 cm from the origin. What is the total force exerted by these two charges on a charge q3 = 5.0 nC located at the origin? Neglect gravitational force.
General
5 months ago
determine if the following vectors are linearly independent or dependent u=(-4,5) v=(2,7)
General
5 months ago
A hair dryer is a duct of constant diameter in which a few layers of electrical resistors are placed. A small fan draws air in and forces it past the resistors, where it heats up. If the density of the air is 1.2 kg/m3 at the inlet and 0.98 kg/m3 at the outlet, determine the percentage increase in air velocity as it flows through the dryer.
General
5 months ago
Solve by poisson distribution: A store has an average of 90 customers per hour. a) What is prob. that for 2 minutes the store does not receive any customers? b) Among 100 identical stores, how many would not receive any customers?
General
5 months ago
Let {(3,5,-1);(7,2,-2)} be a spanning set. Determine the space generated by S.
General
5 months ago
A mason needs to build a wall of 12mx4mx10cm. If the mixture that goes between the bricks occupies 12% of the volume of the wall, how many 20cmx10cmx5cm bricks will be needed?
General
5 months ago
On World Savings Day (October 31, 2023) you open a savings account with 550 euros. In the following two months, an interest rate of 3% p.a. applies with monthly interest On January 1st, 2024, the bank announces a change to quarterly interest at 2.7% p.a. On April 1st, 2024 you pay 400 euros into the savings account. On June 30th, 2024 you withdraw 100 euros. What is the balance in your savings account on October 1st, 2024? a) 868.77 b) 910.34 c) 860.77 d) 862.54 e) 409.03
General
5 months ago
A triangle with coordinates A(7;2), B(5;3) and C(-1;3) represents a roof for 1 unit. To extend the roof to cater for 16 units you need to enlarge the roof using (y+3;x+3). Calculate the coordinates of the enlarged roof.
General
5 months ago
A turner makes curtain rods that customers custom order. The length of the bars in meters is a random variable T such that T is a normal with expectation 2 and unknown variance. The probability that the length of the bar is greater than 50 cm is 0.9938. A) calculate the variance of T B) calculate the probability that the length of the bar is 2.4 meters
General
5 months ago
X+5(3x)
General
5 months ago
The businessman Francisco Hernández invested his capital in a fleet of 50 cars, from which he extracted a sample of 10, to determine what is the Kilometer traveled, giving an average of 150 kilometers per day, with a standard deviation of 15. Determine the confidence interval of 0.94, for the difference of the average of the kilometers of the vehicles.
General
5 months ago
-2<x-9<3
General
5 months ago
binary division 11011/101
General
5 months ago
786
General
5 months ago
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