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Strike441 [17]
3 years ago
7

Find the value of BC B 4x - 10 C A D 3x + 5

Mathematics
2 answers:
posledela3 years ago
7 0

Answer:

BC = 50

Step-by-step explanation:

BC = AD

4x - 10 = 3x + 5

4x - 3x = 5 + 10

x = 15

for BC

4x - 10

4*15 - 10

60 - 10

50

Rainbow [258]3 years ago
6 0

Answer:

BC = 50

Step-by-step explanation:

BC = AD in a parallelogram

4x-10 = 3x+5

Subtract 3x from each side

4x-3x-10 = 3x-3x+5

x-10 = 5

Add 10 to each side

x-10+10 = 5+10

x = 15

BC = 4x-10 = 4*15-10 = 60-10 = 50

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Factorise each of the following algebraic expressions completely,
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Answer:

see explanation

Step-by-step explanation:

(a)

Given

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To factor the quadratic

Consider the factors of the product of the constant term ( 1) and the coefficient of the k² term (+ 2) which sum to give the coefficient of the k- term (- 3)

The factors are - 1 and - 2

Use these factors to split the k- term

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1(1 - k) - 2k(1 - k) ← factor out (1 - k) from each term

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1 - 3k + 2k² = (1 - k)(1 - 2k) and

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(b)

Given

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8 0
3 years ago
Lisa walked 8 km more than Tim. Lisa walked twice as far as Tim. How far did each walk?
valentinak56 [21]
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3 years ago
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Blababa [14]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
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CaHeK987 [17]

Answer:

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Step-by-step explanation:

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6 0
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Hope This Helps and God Bless!
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3 years ago
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