kd

This page lists questions and answers that were posted by visitors named kd.

Questions

The following questions were asked by visitors named kd.

I need help descrambling 2 sentences: 1 - insects plant eat plants birds snakes flying and eat lice eat birds 2- right nations set them will in africa new working for just governments that be up are to

In the story Molly McGinty Has A Really Good Day- Where did they find the notebook??

what five letter word, when all capitalized, reads the same way upside down?

The structure of a two-factor study can be presented as a matrix with the level of one factor determining the rows and the levels of the second factor determining the colums.With this structure in mind,describe the mean differences that are evaluated by e...

i need to solve with no words...a man, fox, goose, and corn are on one side of the river with only a boat for crossing. the goal is to transfer man, fox, goose, corn across the river using the boat which will carry the man and only one other thing. the fo...

Lines BA and BC are opposite rays, Lines BD bisects angle EBC and Line BF bisects angle ABE. If the measure of angle EBD=4x+16 and the measure of angle DBC=6x+4 find the measure of ange EBD If the measure of angle ABF =7x-8 and the measure of angle EBF=5x...

Katydid population is modeled by N(t) = 50 / 1+9e^ -.33t where t is number ofyears and N(t) is population is thousands at time t. when will katydid population reach 40,000?

in figure AB = 11 cm, BC = 8cm, AD = 3 cm, AC 5cm and A DAC is a right angle. the area of the quadrilateral ABCD

A businessman makes a proﬁt of 20% when he sells a carpet for Ksh 36 000. In a trade fair he sold one such carpet for Ksh 33 600. Calculate the percentage proﬁt made on the sale of the carpet during the trade fair.

A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day. On Friday, he sold 240 more oranges than on Thursday. On Saturday he bought 560 more oranges. Later that day, he sold all the oranges he had at a price of Ksh 8 each. C...

The interior angles of an octagon are 2x, 1/2x, (x + 40)°, 110°, 135°, 160°, (2x + 10)° and 185°. Find the value of x.

A cylindrical pipe 2 ½ metres long has an internal diameter of 21 millimetres and an external diameter of 35 millimetres. The density of the material that makes the pipe is 1.25 g/cm‘. Calculate the mass of the pipe in kilograms. (Take n = 22/7)

Twenty ﬁve machines working at a rate of 9 hours per day can complete a job in 16 days. A contractor intends to complete the job in 10 days using similar machines working at a rate of 12 hours per day. Find the number of machines the contractor requires t...

A rectangular box open at the top has a square base. The internal side of the base is x cm long and the total internal surface area of the box is 432cm2. Express in terms of x. (i) the internal height h, of the box; (ii) the internal volume V, of the box....

cylindrical solid whose radius and height are equal has a surface area of 154cm2. Calculate its diameter, correct to 2 decimal places. (Take = 3.142)

A wholesaler sold a radio to a retailer making a proﬁt of 20%. The retailer later sold the radio for Ksh 1560 making a proﬁt of 30%. Calculate the amount of money the wholesaler had paid for the radio.

A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order. (a) Find m - n; (b) Express (m - n) as a product of its prim...

salesman is paid a commission of 2% on goods sold worth over Ksh 100 000. He is also paid a monthly salary of Ksh 12 000. In a certain month, he sold 360 handbags at Ksh 500 each. Calculate the salesman earnings that month Total earned = salary + commissi...

A number which is divisible by 3 is chosen at random from a set of even numbers between 1 and 20. What is the probability of choosing the numbers?

A two digit number is such that, the sum of its digits is 13. When the digits are interchanged, the original number is increased by 9. Find the original number.

evaluate (sin 30°-sin60°)/tan60°

find the reciprocal of 0.0247, hence evaluate (3.025)^1/3))/0.0247 correct to 2 decimal places.

Given that OA =( 2 3) and OB = (-4 5). Find the midpoint M of AB.

find the two possible of x if 10sinx = 6 and 0 <=x<=180

A bag contains 3 black balls, 4 green balls and 5 yellow balls. a) if two balls are picked at random without replacement, find the probability that Botha balls are of the same color. b) How many black balls must be added to the bag so that the probability...

Find the integral values of y in the inequality 2y + 3 < 27 if y > 9

A train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a constant speed for 300 seconds and finally decelerates uniformly for 200 seconds. Given that the distance between the two st...

Three points P, Q and R are on level ground. Q is 240 m from P on bearing of 230°. R is 120 m to the east of P. A) Using a scale of 1 cm to represent 40 m, draw a diagram to show the positions of P,Q and R in the space provided below. B) Determine (i) The...

The quadrilateral PQRS represents a plot of land to a scale of l:4000. Determine the actual length of RS in meters

The boundaries PQ, QR, RS and SP of a ranch are straight lines such that: Q is 16km on a bearing of 040° from P, R is directly south of Q and east of P and S is 12km on a bearing of 120° from R. (b) From the scale drawing determine: (i) The distance, in k...

The comer points A, B, C and D of a ranch are such that B is 8km directly East of A and C is 6km from B on a bearing of 30°. D is 7km from C on a bearing of 300°. (a) Using a scale of 1cm to represent 1km, draw a diagram to show the positions of A, B, C a...

Three points P, Q and R are on level ground. Q is 240 m from P on bearing of 230°. R is 120 m to the east of P. (b) Determine (i) The distance R from Q; (ii) The bearing of R form Q. (c) A vertical post stands at P and another one at Q. A bird takes 18 se...

The boundaries PQ, QR, RS and SP of a ranch are straight lines such that: Q is 16km on a bearing of 040° from P, R is directly south of Q and east of P and S is 12km on a bearing of 120° from R. (i) The distance, in kilometers, of P from S. (ii) The beari...

In a triangle ABC, BC = 8 cm and AC = 12 cm and angle ABC = 120. a. Calculate the length of AB, correct to one decimal place. b. If BC is the base of the triangle, calculate, correct to one decimal place; (i) the perpendicular height of triangle; (ii) the...

a quadrilateral PQRS in which PQ = 5 cm, PS = 3 cm, QR = 4 cm, PQR = 135° and SPQ is a right angle. (b) The quadrilateral PQRS represents a plot of land drawn to a scale of l: 4000. Determine the actual length of RS in meters.

John bought two types of bulbs A and B at Ksh 60 and Ksh 56 respectly. He bought a total of 50 bulbs of types at of Ksh 2872. determine the number of Type A bulbs that he bought.

sin2x = cos(3x -10), find tanx

(9^4)^(1/3) = 3^n find the value of n.

Given that. sin 2x = cos (3x - 10), find tanx 2x = 90 -(3x -10) 2x = 90 -3x + 10 2x = -3x + 100 2x + 3x = -3x + 3x + 100 5x = 100 x = 20 tanx = sin/cos tan = sin40/cos50 Is that correct

Answers

The following answers were posted by visitors named kd.

1.00 M is the concentration. M=mol/L which is concentration. 9.25 is correct!

B = 50 - A 60A + 56(50 - A) = 2872 60A + 2800 - 56A = 2872 4A = 72 A = 18

ANSWER: D: -0.04 Explanation: Average rate of change is the same as slope 2.3 - 4.7/80 - 20 = -2.4/60 = -0.04