3 years ago

Question 3

Mathematics

1 answer:

snow_tiger [21]3 years ago

3 0

D. (x, y) —> (x+5, y - 8)

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Solve the following by factoring 4x² + 12 =7x

LiRa [457]

Answer:

4x² + 12 = 7x

4x² + 12 - 7x = 0

use the quadratic formula and get your answer!

Step-by-step explanation:

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3 years ago

If (1)=3 and f(n)=f(n-1)-1 then find the value of f(6)

katrin [286]

Answer:

f(1) = 3

f(n) = f(n-1) - 1

Otherwise,

f(n) = f(1) - (n-1)

=> f(6) = 3 - 5 = -2

Hope this helps!

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2 years ago

What is the value of x?

Hitman42 [59]

Answer:

Step-by-step explanation:

Since RQT=155

4x-20+3x+14=155

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2 years ago

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The area of triangle PQR is 273 cm. Given that PQ = 12.8cm and PQR = 107°, find QR.

storchak [24]

$\text{Area of triangle} = \dfrac 12 \times PQ \times QR \times \sin \angle PQR \\\\\\\implies 273= \dfrac 12 \times 12.8 \times QR \times \sin 107^{\circ}\\\\\implies 273 = 6.4 \sin 107^{\circ} \times QR\\\\\\\implies QR = \dfrac{273}{6.4 \sin 107^{\circ}} = 44. 606~~ \text{cm}$

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2 years ago

If a man earns $805 for 7 days, how many days does he<br>have to work to earn $2185?

krok68 [10]

Answer:

19 days

Step-by-step explanation:

805 = 7x

x = 115 dollars per day

115x = 2185

divide by 115

x=19

he needs to work 19 days

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