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kd
Questions and answers by visitors named
kd
Questions (46)
A two digit number is such that, the sum of its digits is 13. When the digits are interchanged, the original number is increased
12 answers
asked by
kd
8,393 views
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
7 answers
2,081 views
Find the integral values of y in the inequality 2y + 3 < 27 if y > 9
7 answers
1,817 views
A small cone of height 8 cm is cut off from a bigger cone to leave a frustum of height 16 cm. If the volume of the smaller cone
5 answers
2,393 views
A bag contains 3 black balls, 4 green balls and 5 yellow balls.
a) if two balls are picked at random without replacement, find
6 answers
2,813 views
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 a total of Ksh
4 answers
1,759 views
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.
3 answers
989 views
I need help descrambling 2 sentences:
1 - insects plant eat plants birds snakes flying and eat lice eat birds 2- right nations
5 answers
631 views
In the story Molly McGinty Has A Really Good Day- Where did they find the notebook??
1 answer
372 views
what five letter word, when all capitalized, reads the same way upside down?
1 answer
225 views
what 5 letter word, when all capitalized, reads the same way upside down.
4 answers
476 views
The structure of a two-factor study can be presented as a matrix with the level of one factor determining the rows and the
2 answers
1,193 views
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
2 answers
481 views
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
5 answers
2,488 views
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.
3 answers
433 views
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
2 answers
493 views
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
4 answers
1,329 views
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
4 answers
793 views
The interior angles of an octagon are 2x, 1/2x, (x + 40)°, 110°, 135°, 160°, (2x + 10)° and 185°. Find the value of x.
5 answers
1,123 views
A cylindrical pipe 2 ½ metres long has an internal diameter of 21 millimetres and an external diameter of 35 millimetres. The
2 answers
555 views
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
4 answers
733 views
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
4 answers
1,243 views
cylindrical solid whose radius and height are equal has a surface area of 154cm2. Calculate its diameter, correct to 2 decimal
3 answers
579 views
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
3 answers
863 views
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
5 answers
2,644 views
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
4 answers
2,584 views
evaluate (sin 30°-sin60°)/tan60°
5 answers
886 views
find the reciprocal of 0.0247, hence evaluate (3.025)^1/3))/0.0247 correct to 2 decimal places.
1 answer
398 views
Given that OA =( 2 3) and OB = (-4 5). Find the midpoint M of AB.
4 answers
1,037 views
find the two possible of x if 10sinx = 6 and 0 <=x<=180
3 answers
389 views
A train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at
2 answers
627 views
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
1 answer
431 views
A watch, which loses a half-minute every hour, was set to read the correct time at 0545h on Monday. Determine the time, in the
5 answers
1,972 views
The quadrilateral PQRS represents a plot of land to a scale of l:4000. Determine the actual length of RS in meters
1 answer
400 views
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
3 answers
684 views
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
3 answers
457 views
Train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a
3 answers
816 views
23. 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
4 answers
794 views
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
2 answers
557 views
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
2 answers
553 views
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
2 answers
788 views
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.
1 answer
392 views
sin2x = cos(3x -10), find tanx
5 answers
1,943 views
(9^4)^(1/3) = 3^n find the value of n.
2 answers
212 views
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
3 answers
455 views
Nine less than the quotient of two and a number xxx.
1 answer
198 views
Answers (6)
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
B = 50 - A 60A + 56(50 - A) = 2872 60A + 2800 - 56A = 2872 4A = 72 A = 18
i do not know
1.00 M is the concentration. M=mol/L which is concentration. 9.25 is correct!
help anyone...
I would say A
