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STALIN [3.7K]
3 years ago
8

Factorise x^{2} +2x-24[/tex]

Mathematics
1 answer:
Talja [164]3 years ago
5 0

Answer:

(x + 6)(x - 4)

Step-by-step explanation:

x² + 2x - 24

(x + 6)(x - 4)

-4 and +6 multiply to 24 and add to +2.

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A diver is swimming at -10m. he then descends 3 m and rises 6 m. at what new level is the diver swimming?
yaroslaw [1]
-10-3+6= -7

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7 0
3 years ago
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Find the surface area of a cylinder with a base radius of 2 cm and a height of 3 cm.
jek_recluse [69]

Answer: 62.8cm^2

Step-by-step explanation:

The surface area of a cylinder is calculated by 2πrh+2πr2

where π is a constant, given as 3.14; h is the height, given as 3cm and r is radius, given as 2cm.

Therefore, rh = 3 x 2= 6 cm ^2 while r^2 =2 × 2= 4 cm^2.

Slot the values into the formula:

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6 0
3 years ago
Find the length and width of a rectangle.<br> Perimeter = 50<br> Side A = 3x + 2<br> Side B = x - 5
zmey [24]

Step-by-step explanation:

Perimeter = 2 * (Side A + Side B)

= 2 * (3x + 2 + x - 5)

= 2 * (4x - 3)

= 8x - 6.

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4 0
3 years ago
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4x + 6y = 18 &amp; 4x – 2y = 10
kherson [118]

Answer:

x=4.875

y=-0.25

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x=4.875

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