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vredina [299]
3 years ago
8

Factor the following trinomial expression by a method of your choice: 3x2 + 7x-10.

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
8 0

Answer:b

Step-by-step explanation:

polet [3.4K]3 years ago
5 0
3x² + 7x - 10
3x² - 3x + 10x - 10
3x(x) - 3x(1) + 10(x) - 10(1)
3x(x - 1) + 10(x - 1)
(3x + 10)(x - 1)

The answer is D.
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The sides OP and RO of triangle POR are produced to points S and T respectively. If ∠SPR = 145° and ∠POT = 115° , find ∠PRO
Margarita [4]

Answer:

\angle PRQ = 80

Step-by-step explanation:

Given

\angle SPR = 145^o

\angle POT = 115^o

See attachment

Required

Find \angle PRO

First, calculate \angle RPO

\angle RPO + \angle SPR = 180 --- angle on a straight line

So, we have:

\angle RPO + 145 = 180

Collect like terms

\angle RPO = 180 - 145

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Next, calculate PQR

\angle POR + \angle POT = 180

So, we have:

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Collect like terms

\angle POR = 180-115

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So, we have:

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