Index Laws
What is the value of 23?
8
Expand 3(m+2)
3m + 6
Factorise 3m + 9
3(m + 3)
What is the value of m: m + 2 = 8
What is the powerhouse of the cell?
Mitochondria
Simplify y2 x y3
y5
Expand (m+4)(m-2)
Factorise m2 - 16
(m + 4)(m - 4)
What is the value of m: (m + 2)/3 = 4
m = 10
On Venus it rains diamonds: True or False
False
It can snow metals such as lead on Venus. On Jupiter it can rain diamonds due to the pressure of the methane rich atmosphere.
Simplify ((y5)2)/y2
y8
Expand 2(m2 + 3m + 1)
2m2 + 6m + 2
Factorise m2 - 20
(m + sqrt(20))(m - sqrt(20))
Solve the inequality: -3y + 4 < 10
y > -2
Which happened first? The pyramids of Egypt were built or the wooly mammoths die out.
The pyramids of Egypt were built before all Wooly mammoths died out. In Siberia small herds of Wooly mammoths roamed the frozen wastes.
Simplify (3a2b3)2 x 2b0
18a4b6
Expand (2m - 3)(m + 5)
2m2 + 7m -15
Factorise m2 + 5m + 6
(m + 2)(m + 3)
Solve for m: (4m - 4)2 = 16
m = 2
Which is more likely to dissolve in your stomach a piece of metal or a piece of corn?
A piece of metal would dissolve first in a human stomach compared to a corn kernel. This is because the stomach's acidic environment, with a pH of around 1 to 2, is strong enough to start breaking down certain metals, especially if they are small and reactive.
On the other hand, the tough outer layer of a corn kernel, made of cellulose, is resistant to stomach acid. Humans lack the enzyme cellulase needed to break down cellulose, so the outer layer of the corn kernel remains largely undigested as it passes through the digestive system.
Simplify (2m3/n2)2
4m6/n4
Expand 2(m + 2)2
2m2 + 8m + 8
Factorise 2m2 + 20m + 50
2(m + 5)2
Solve the inequality : 2(12 + m) > 4m
4 > m
Which of the following is a closer relative to the hippopotamus? Whales or manatees?
Whales are more closely related to hippos based on fossil records.
On the other hand manatees are more closely related to elephants than hippos.