Factorise -75ab² - 15ac 5a(3b - c) -15b²(3a + c) -15a(5b² + c) 15a(5b² - c) A triangle has a base of length 6 cm and an area of less than 12 cm². Which of the following gives the height h of the triangle h < 4 cm h < 6cm h < 12 cm h < 24 cm Expand (2x-3)(2x +3) 4x² + 12x + 9 4x² - 12x – 9 4x² - 9 4x² + 9 A woman buys 8 tubers of yam at #200 each and sells them at a profit of 12%. Calculate the selling price. #192 #1600 #1792 #2000 What is the size of each angle of a regular 15-sided

2 answers
Question:

Factorise -75ab² - 15ac
5a(3b - c)
-15b²(3a + c)
-15a(5b² + c)
15a(5b² - c)
A triangle has a base of length 6 cm and an area of less than 12 cm². Which of the following gives the height h of the triangle
h < 4 cm
h < 6cm
h < 12 cm
h < 24 cm
Expand (2x-3)(2x +3)
4x² + 12x + 9
4x² - 12x – 9
4x² - 9
4x² + 9
A woman buys 8 tubers of yam at #200 each and sells them at a profit of 12%. Calculate the selling price.
#192
#1600
#1792
#2000
What is the size of each angle of a regular 15-sided polygon?
78⁰
156⁰
185⁰
200⁰
The height of a boy is t cm. His father is two times his height. Express the height of the father in terms of t.
5t cm
2t cm
t cm
t² cm
Factorise 4am² - 6am
2am(2m – 3)
m²(2a - 3m)
am²(4 - 6a)
2a²m²(2m - 3)
What is the slant height of a cone of height 8cm and base diameter of 12cm?
5 cm
6 cm
8 cm
10 cm
Express 51 x 10⁻⁵ as a decimal number.
0•000051
0•00051
0•0051
0•51
A television costs #54 000. A 12¹/₂% discount is given for cash. What is the cash price ?
# 54 000
# 47 000
# 47 250
# 6 750
Find y-intercept in the graph below

(0, 1)
(0, 5)
(5, 0)
(0, 2)
Simplify - 40pq ÷ (-2)²
-10p
-10q
-10pq
10pq
Express the product of 0•003 and 0•045 in standard form.
3•45 x 10⁵
1•35 x 10⁵
1•35 x 10⁻⁵
1•35 x 10⁻⁴
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Which of these is the three figure bearing of the acute-angle bearing N40⁰W ?
320⁰
310⁰
270⁰
040⁰
The volume of a cylinder is 700π cm³. What is the base diameter of the cylinder if its height is 7 cm ?
6•5 cm
7cm
10 cm
20 cm
What is the LCM of 2x²y, 3xy² and 4x²y ?
16x²y²
12x²y²
12x²y
7xy
Express 636 000 in standard form.
6.36 x 10⁻⁵
6.36 x 10⁻⁴
6.36 x 10⁴
6.36 x 10⁵
A cone and a cylinder have equal volumes and radii. The height of the cone is 12 cm. What is the height of the cylinder?
4 cm
12 cm
36 cm
50 cm
Find the angle measured clockwise between the directions: N and SW
45°
135°
180°
225°
What is the total surface area of a cylinder opened at one end if its height is 20cm and it's diameter is 14cm (π = 3¹/₇)
880 cm²
1034 cm²
1188 cm²
1250 cm²
I think of a number. I then double it. The result is 58. What number did I think of ?
29
20
16
10
RSTU is a quadrilateral as seen below. What is the value of X?

5
10
11
15

Answers

Answer:9) 51 × 10⁻⁵ = 0.0005110) Cash price = #54,000 × (1 - 0.125) = #47,25011) -40·p·q÷(-2)² = -10·p·q12) 0.003 × 0.045 = 1.35 × 10⁻⁴13) N40°W = 320°14) The base diameter of the cylinder = √(4 × (700×π cm³/7)/π) = 20 cm15) The LCM of 2·x²·y, 3·x·y² is 12·x²·y²16) 636,000 = 6.36 × 10⁵17) 1/3·π·r²·h₁ = π·r²·h₂h₂/h₁ = 1/3·π·r²/( π·r²) = 1/3h₂/12 =  1/3h₂ = 12/3 = 4 cm, the height of the cylinder = 4 cm18) The angle = 180 + 45 = 225°19) The total surface area = 22/7×14²/4 +  22/7 ×14 × 20 = 1034 cm²20) The number is 58/2 = 29.Step-by-step explanation:

Step-by-step explanation:THE ANSWERS ARE1 B2A3C4A6B

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