URVASHI GARG

Question: Which expression is equivalent to 8(4u)?(1) 32u(2) u + 32(3) u + 12(4) 4u + 8 Solution: Write 8(4u) in standard form.8(4u)= 32u MultiplyThe expression 8(4u) is equivalent to 32u.Then the option is (1). Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: Erica polled the first 12 runners to finish a marathon.Is this sample of the runners likely to be biased?(1) Yes(2) No Solution: REMEMBER : In a biased sample, some people or items are more likely to be chosen than others. Since the fast runners might not be similar to the other runners, it is

Question: Rosanne runs a stable that boards 20 horses, and 8 of them are spotted. What is the experimental probability that the next horse that comes to board will be spotted?Write your answer as a fraction or whole number.(1) 2/4(2) 2/5(3) 2/1(4) 2/6 Solution: REMEMBER : The experimental probability is the number of times an

Question: A spatula costs $5.20. Pablo wants to buy it with cash. How much would it cost?(1) $5.20(2) $5.10(3) $5(4) $5.25 Solution: To round to the nearest 5 cents, round the cents to the nearest multiple of 5. Numbers ending in 1, 2, 6, or 7 round down. Numbers ending in 3, 4, 8, or

Question: To estimate the salmon population, Professor Cain and her research team marked 360 salmon with tags. Later, the team captured 350 salmon, 21 of which had tags. To the nearest whole number, what is the best estimate for the salmon population?(1) 6000(2) 3300(3) 5999(4) 6100 Solution: The ratio of marked salmon to total salmon

Question: Factorise out the highest common factor. If the highest common factor is 1, just retype the polynomial.2p³ + 8p² = ?(1) 2p² (p + 2)(2) 2p² (p * 4)(3) 2p³ (p + 4)(4) 2p² (p + 4) Solution: REMEMBER : To factorise a polynomial, first find the highest common factor (HCF) of each monomial.

Question: A teacher looked at 2 different homework problems from each assignment given last term. Each assignment had an equal number of problems.Is this sample of the homework problems assigned likely to be biased?(1) yes(2) No Solution: REMEMBER : In a biased sample, some people or items are more likely to be chosen than others.

Question: Latrell wants to buy something that costs $880 before GST. GST is charged at 10%. What is the total cost after GST is added?(1) $960(2) $968(3) $950(4) $965 Solution: Find the total cost by writing and solving an equation:total cost with GST = cost without GST + 10% of cost without GST= 880 +

Question: Factorise out the highest common factor. If the highest common factor is 1, just retype the polynomial.4z² – 10z(1) 2z(2z–5)(2) 2z(2z+5)(3) 2z(2z*5)(4) 2z(2z-3) Solution: REMEMBER : To factorise a polynomial, first find the highest common factor (HCF) of each monomial. Then factor out the highest common factor using the distributive property. First, factorise each

Question: While designing a new dessert menu, the manager of a restaurant offered customers a coupon in exchange for completing a brief survey about their favourite desserts. 10 of the customers accepted the offer.Is this sample of the restaurant’s customers likely to be representative?(1) Yes(2) No Solution: REMEMBER : In a representative sample, the people