Questions Asked on
June 9, 2020

mathematics
A frustum of a pyramid is 16 cm square at the bottom ,6 cm square at the top ,and 12 cm high.Find the volume of the frustum

Mathematics
A piece of string is wound tightly around a cylinder for 20 complete turns. The length of the string is found to be 3.96cm. calculate the diameter of the cylinder in cm

Mathematics
A goat is tied to a peg in the ground. The rope is 3m long. What area of grass can the goat eat? ( use the value 3.1)

mathematics
A bug spray's effectiveness decreases over time. After h weeks, it retains only half of its effectiveness, and this trend continues. A function that represents this is Q(t) = 30•6^51 A scientist testing the bug spray tried to put the given equation into

Geometry
Examine the two distinct lines defined by the following two equations in slopeintercept form. line ℓ: y=34x+6 line k: y=34x−7 Are lines ℓ and k parallel? Justify your response. 1.Yes, lines ℓ and k are parallel because their slopes are equal.

mathematics
All of the following expressions are equivalent to 6 x 15^t. However, only one has been rewritten using exponent property #3, bx/by = b^x−y. a) 6/15^t b) 2 x 3^t+1 x 5^t c) (6^t x 15^t)/6^t1 d) 6 x 15^12t x 15^t

mathematics
log3(4x+1)log3(3x5)=2

Mathematics
Find the average wage of 3 men whose wages are N2,780,N3,336 and N3,013

chemistry
Why are halfreactions written to describe redox reactions?

Math
Which of the following expressions is/are equivalent to 18 x 6^(−2x+1)? There may be more than one correct answer. Select all that apply. a) 108^x/36 b) 3 x 36/36^x c) 3 x 36^(1x) d) 108/36^x e)3^x

algebra
Use the compound interest equation B(t)=124(1+ 0.05/4)^4t to answer the question. How many times per year is the interest calculated?

Math
In the country of United States of Heightlandia, the height measurements of tenyearold children are approximately normally distributed with a mean of 55.7 inches, and standard deviation of inches. What is the probability that a randomly chosen child has

Algebra
All of the following expressions are equivalent to 3⋅12^t. However, only one has been rewritten using exponent property #3, b^x/b^y = b^(x−y) Which one is it? a) 3^(t+1)20^t/5^t b) 3^(t+1)4^t c) 3^(t+1)2^2t d)3⋅12^(t+2)/12^2

history
Which most accurately describes the Arab Empire’s impact on religious practices?

Geometry
Line ℓ contains the points A(2,2) and B(3,6). Line k contains the points C(0,5) and D(1,9). Yes, lines ℓ and k are parallel because the lines pass through the same points. No, lines ℓ and k are not parallel because the slopes are not equal. Yes,

math
All of the following expressions are equivalent to 7⋅(2/10)^t. However, only one has been rewritten using exponent property #4, (b/c)^x = b^x/c^x. Which one is it? a) (71^(t/5)/5)^t b) 7⋅(1/5)^t c) (7^(1/t)⋅2/10)^t d) 7⋅2^t/10^t

math
Use the exponential equation f(t)=3(0.92)^t + 7 to answer the questions. A: What is the equation of the horizontal asymptote in this function? B: What is the base of the power? C: What is the initial value, f(0)?

Geometry
Allana knows that △XYZ∼△UVZ and XY⎯⎯⎯⎯⎯⎯⎯⎯∥UV⎯⎯⎯⎯⎯⎯⎯⎯⎯. What segment relationships can Allana use to prove that the slope of line l is equal to the slope of line m? Allana can show that UVXY=VZYZ using the

mathematics
How much more is the rate of change of function 2 than the rate of change of function 1? Function 2 y = 5x + 4 Function 1 y=3

Calculus
Find the distance between the points A(1,2,3) and B(2,4,5)

Chemistry
a)How many calcium ions are in 2.17 moles of calcium phosphate? b)If 1.41 g of zinc or attitude 1.85 g of hydrochloric acid identify the limiting and excess reagents give reasons for your choice and determine how many moles of the excess reagent remains

Trigonometry
Question: State an equivalent Trigonometric Ratio for each of the following a) cos π/16 b) sin 7π/9 c) tan 5π/4 d) sin 11π/6 My (attempted) answers are: a) cos π/16 b) sin 2π/9 c) tan π/4 d) sin π/6 Are any of my attempted answers correct?

Mathematics
The Pew Research Center has found that 86% of people 18 through 29 years old are social media users. What is the probability that you have to ask 10 people in this age group to find one that is not a social media user? What is the probability that you have

Mathematics
In an election there were three candidates; ⅔ of the electors voted for the first candidate, ¼ for the second and the rest for the third candidate. If the third candidate got 3290 votes, how many votes did the winner get

Math
Use the compound interest equation B(t)=800(1.0001)^365t to answer the questions. A: What is the the equation rewritten in the form B(t)=P(1+r/n)^nt? (Assume n=365.) B: What is the interest rate, r, as a percentage?

Economics
Country A and B are small open economies. Their economies depend on each other heavily for trade, but their respective governments don't always work together when setting economic policy. Assume (for simplicity) that these countries only trade with each

Finance
Suppose you have $2,000 and plan to purchase a 10year certificate of deposit (CD) that pays 6.5% interest, compounded annually. How much will you have when the CD matures?

Maths, space
I’m a bit stuck on this simple question. So the values I’ve got: Propellant = 100,000 kg Structure = 10,000 kg Payload = 5000 kg So I worked out: Propellant fraction is 87% Payload fraction is 4.3% Now I need to find “Recall the relationship between

math
8. Each block in a child’s set of building blocks is 15 cm long, 10 cm wide, and 5 cm high. Suppose you put the blocks in a box that is 50 cm long, 35 cm wide, and 30 cm high. Suppose you arrange the blocks neatly in layers. How many different ways can

Maths
Factorise..2x^7x+5

mathematics
Given the function f(x)=4x, write f(x) as a piecewise function that does not include absolute value symbols.Please fill the blanks f(x)=blank; when x≤ blank f(x)= blank; when x> blank

math
can someone please help me find a number for a that CAN NOT BE USED 1 + 5 x 9 (  2 + 5 x ) = a x + b

Statistics
Find an interval I𝜃 (that depends on 𝜃 ) centered about 𝑋⎯⎯⎯⎯⎯𝑛 such that 𝐏(I𝜃∋𝜃)=0.9for all 𝑛(i.e, not only for large 𝑛). (Write barX_n for 𝑋⎯⎯⎯⎯⎯𝑛 . Use the estimate 𝑞0.05≈1.6448 for best

Economics
You discover a new clothing store (Store X) across the street from an existing department store (Store Y). Both stores offer the same brands and styles of Tshirts. However, Store X offers their clothing for less. How might this event affect the demand

Algebra
(3y+2)(y+3)

government
 how would you classify the ideas held and applied about justice in Western society (punitive)? How would you classify the ideas held and applied about justice in Traditional societies (restorative/empathetic)?  What is the relationship between the

Calculus
I don't know the formula to solve this question Find the midpoint of the segment connecting the points A(3,5,2) and B(4,8,6).

history
 How would you classify the ideas held and applied about justice in Traditional societies (restorative/empathetic)?  What is the relationship between the degree of humanity displayed to/by citizens of a society and their core values as they relate to

History
How did the hiring practices of Chinese labour contractors lead to discrimination? How did they exploit Chinese workers?

History
1. What led to rapid growth in Kootenays? Why was this growth shortlived? 2. Why was tourism an early industry in British Columbia 3. How did the CPR and other railways serve to boost economic growth in British Columbia? 4. Examine Figure 6 – 32 and

Chemistry
A 25.0 mL sample of NaHSO4(aq) was titrated with 0.500 mol/L NaOH(aq) using phenolphthalein indicator. At the endpoint, one drop of NaOH(aq) was sufficient to change the phenolphthalein indicator from colourless to pink. To reach this point, 10.2 mL of

geography
In which of the following industries are the majority of jobs in the United States and Canada found

math
What would make the f(x)=2 in the function given in the previous question?

physics
A 62 kg toboggan is slowed to a stop in 5.0 m. what was the force of Friction, if the work done was 650J?

Physics
A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle are both traveling at the same speed of 19.0m/s , and the distance between them is 52.0m . After t1 = 5.00s , the motorcycle

mathematics
Which of the following expressions is/are equivalent to 1/12 x 36^t? There may be more than one correct answer. Select all that apply. a) 1/2 x 6 x 36^t b) 1/2 x 6^1 x 36^t c) 1/2 x 6^2t1 d) (2^1)^2 x 3^2t1 e) 2^2t1 x 3^2t1

Physics
brass measuring tape is correct at 20 degree Celsius. The value obtained when the length of a field is measured with the rule at 50 degree Celsius appears to be 70.5m. what is the true length of the field Linear expansivity of brass =1.8 ×10 raise to

Math
Which of the following expressions is/are equivalent to 1/15 x 125^t x 5^t? There may be more than one correct answer. Select all that apply. a) 1/3 125^t b) 1/15 x (5^4)^t c) 1/15 x 5^3t x 5^t d) 1/15 (5^t)^4 e) 1/15 x 5^(3t+1) f) 1/15 x (5^3)^t x 5^t g)

Mathematics
The average family spends $78 at the grocery store each week with a standard deviation of $25. What percentage of families spend between $28 and $50? Explain in context what this represents.

Mathematics
The average family spends $78 at the grocery store each week with a standard deviation of $25 How much money per week would a family need to spend to be in the 90th percentile? Explain, in context, what this means.

Mathematics
If you assume the normal model for these data, N(0.18, 0.04), in about what percentage of counties would the proportion of people 65 and older be more than 0.22?

Physics
A 2.00 kg rim with a radius of 20.0 cm is setting on an 8.00 kg wedge of angle 30 degrees. The kinetic coefficient of kinetic friction between the wedge and the floor is 0.20 A) With F = 0.00 N, find the minimum coefficient of static friction between the

Chemistry
How many grams of Na2O are required to produce 160 grams of NaOH?

Chemistry
I would be very grateful to have these answered with showing work In order to produce a lead (II) chromate precipitate, lead (II) chloride reacts with sodium chromate in solution. A 12.5 g mass of lead (II) chloride is mixed into solution, and is allowed

calculus
x^2+8x+32 its critical points in derivatives

physics
A little girl of mass 30kg is jumping straight up and down on a stretched trampoline. During a single jump, she reaches a maximum height of 5.0m above the horizontal surface of the trampoline and deeps to 1.0m below the surface. Use the acceleration due to

Mathematics
a trader bought 150eggs for 22.50 ; eggs were cracked . he sold the cracked eggs at 10 each and the rest at 17 each. what was his percentage gain ?.

Science
If sulphur is in success then production of 2 moles of ferrous sulfide requires how many grams of iron?

Astronomy
If the universe was born at the big bang, what existed before then?

English
how can we describe the life cycle of a butterfly by using metaphors and similes?

Maths
Lizzy spends 2/5 of her pocket money on transportation, 1/5 of the remainder on sweets and 1/3 of what still remains on movies. If she has ¢ 13.00 left, how much is her pocket money?

math
Find x and y so the following equation is true. (10x7)4i=4+yi

PE/Math
How many calories can you brun from doing 100 jumping jacks?

science
Why are Aboriginal clan systems considered human social systems?

Math
1.7*10 exponent 7