3 years ago

Factorise fully the following: a) 3x + 18 b) 2x - 14 c) 6x + 4 d) 9x - 15

Mathematics

2 answers:

nikklg [1K]3 years ago

7 0

A) 3(x+6)
b) 2(x-7)
c) 2(3x+2)
d) 3(3x-5)

JulsSmile [24]3 years ago

4 0

Answer:

I have attached the work to your problem.

Please see the attachment below.

I hope this helps.

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A carpenter used 6 boxes of nails to build 8 bird houses. He used __ of a box on each bird house.

mina [271]

Answer:

0.75 or 3/4 boxes of nails per bird house

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2 years ago

I am not sure about any of my answers and I don’t know how to find the range for question b or the slope for question c.

myrzilka [38]

Answer:

a) is correct

b) y = -a(x - 2.5)² + h

(5.5,0)

0 = -a(5.5-2.5)² + h

h = 9a

a = h/9

48 = -a(0-2.5)² + h

h = 48 + 6.25a

h = 48 + 6.25(h/9)

h = 157.0909090681

Range: [0,157]

c) (80-144)/(4.5-3)

= -42⅔ or -42.67

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2 years ago

Who know the answer

Shkiper50 [21]

They just added 100 each time so i think the answer is b

3 0

2 years ago

1/2,1/3,1/8 find the sum

Zarrin [17]

Answer:

23/24

Step-by-step explanation:

To find the sum you must ad.

Fractions can only be added and subtracted when the denominators (the bottom numbers) are the same.

24 is the smallest number that 2, 3 and 8 go into.

1/2 = 12/24, 1/3 = 8/24, 1/8 = 3/24

$\frac{12}{24} + \frac{8}{24} + \frac{3}{24} = \frac{23}{24}$

23/24

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3 years ago

For the equation 3(2x − 5) = 6x + k, which value of k will create an equation with infinitely many solutions?

lana [24]

Answer: K = -14

Step-by-step explanation: solve for k by simplifying both sides of the equation then isolating the variable

5 0

2 years ago

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