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Zolol [24]
3 years ago
14

Factorising quadratics 2nd page

Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0
A^2-b^2=(a+b)(a-b)

1: x^2-4=(x+2)(x-2)
2: (x+8)(x-8)
3: (x+10)(x-10)
4: (x+14)(x-14)
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X + 6 >10 or 3x + 11 ≤ −7
hjlf

Answer:

x>4 or x≤-6

Step-by-step explanation:

x+6>10 or 3x+11≤-7

x>4 or 3x≤-18

x>4 or x≤-6

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2 years ago
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
Aneli [31]

Answer:

9 miles

Step-by-step explanation:

use Pythagoras theorem

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6 0
2 years ago
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Seventeen added to a number is sixty-five. What is the number?
SSSSS [86.1K]

Answer:

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3 years ago
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Write two expressions where the solution is 41.
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One expression could be.... Nine times 4 plus five equals forty one. ALSO...  Eight times eight equals sixty four then subtract twenty four equals forty one
8 0
3 years ago
Can someone help me with this problem please? Thank you!
Olenka [21]

Answer:

50

Step-by-step explanation:

since the Pythagorean theorem is

c= √a^2+b^2

b is the bottom line (48)

a is the right line (14)

c is the top line (c)

plug that in

c = √14^2 + 48^2

then do the exponets

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then add them together

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c = √2500

the sqrt of 2500 is 50 (50 * 50 = 2500)

c = 50

your answer is 50

hope this helps:)

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2 years ago
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