Ask a New Question

Questions and answers by

kd

Questions (46)

Nine less than the quotient of two and a number xxx.
1. 0 answers
2. 240 views
Given that. sin 2x = cos (3x - 10), find tanx2x = 90 -(3x -10) 2x = 90 -3x + 10 2x = -3x + 100 2x + 3x = -3x + 3x + 100 5x = 100
1. 2 answers
2. 502 views
(9^4)^(1/3) = 3^n find the value of n.
1. 2 answers
2. 235 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
1. 2 answers
2. 1,833 views
sin2x = cos(3x -10), find tanx
1. 4 answers
2. 1,999 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. 1 answer
2. 430 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
1. 1 answer
2. 854 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.
1. 1 answer
2. 1,086 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
1. 2 answers
2. 610 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
1. 1 answer
2. 607 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
1. 3 answers
2. 833 views
Train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a
1. 1 answer
2. 882 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
1. 2 answers
2. 520 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
1. 2 answers
2. 728 views
The quadrilateral PQRS represents a plot of land to a scale of l:4000. Determine the actual length of RS in meters
1. 1 answer
2. 434 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
1. 4 answers
2. 2,048 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. 1 answer
2. 472 views
A train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at
1. 1 answer
2. 689 views
Find the integral values of y in the inequality 2y + 3 < 27 if y > 9
1. 7 answers
2. 1,948 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
1. 4 answers
2. 2,921 views
find the two possible of x if 10sinx = 6 and 0 <=x<=180
1. 1 answer
2. 434 views
Given that OA =( 2 3) and OB = (-4 5). Find the midpoint M of AB.
1. 3 answers
2. 1,082 views
find the reciprocal of 0.0247, hence evaluate (3.025)^1/3))/0.0247 correct to 2 decimal places.
1. 1 answer
2. 440 views
evaluate (sin 30°-sin60°)/tan60°
1. 2 answers
2. 941 views
A two digit number is such that, the sum of its digits is 13. When the digits are interchanged, the original number is increased
1. 12 answers
2. 8,647 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
1. 3 answers
2. 2,651 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
1. 4 answers
2. 2,717 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
1. 7 answers
2. 2,160 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
1. 2 answers
2. 920 views
cylindrical solid whose radius and height are equal has a surface area of 154cm2. Calculate its diameter, correct to 2 decimal
1. 1 answer
2. 621 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
1. 2 answers
2. 1,315 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
1. 4 answers
2. 2,453 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
1. 3 answers
2. 787 views
A cylindrical pipe 2 ½ metres long has an internal diameter of 21 millimetres and an external diameter of 35 millimetres. The
1. 1 answer
2. 606 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.
1. 4 answers
2. 1,187 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
1. 3 answers
2. 855 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
1. 3 answers
2. 1,397 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
1. 1 answer
2. 529 views
Katydid population is modeled byN(t) = 50 / 1+9e^ -.33t where t is number ofyears and N(t) is population is thousands at time t.
1. 2 answers
2. 473 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
1. 4 answers
2. 2,573 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
1. 1 answer
2. 527 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
1. 1 answer
2. 1,248 views
what 5 letter word, when all capitalized, reads the same way upside down.
1. 3 answers
2. 538 views
what five letter word, when all capitalized, reads the same way upside down?
1. 1 answer
2. 270 views
In the story Molly McGinty Has A Really Good Day- Where did they find the notebook??
1. 1 answer
2. 407 views
I need help descrambling 2 sentences:1 - insects plant eat plants birds snakes flying and eat lice eat birds 2- right nations
1. 4 answers
2. 694 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

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2024