Mathematics
Mathematics, 12.03.2021 20:10, JLapworth1130

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

answer
Answers: 3

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Do you know the correct answer?
Factorise -75ab² - 15ac 5a(3b - c)

-15b²(3a + c)

-15a(5b² + c)

...

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