4 years ago

HELP. GET YA MONEY HERE.

Mathematics

1 answer:

BlackZzzverrR [31]4 years ago

7 0

Answer:

57 = r

113 = s

57 = t

Step-by-step explanation:

r and t are parallel

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20 miles.

Step-by-step explanation:

Let m be number of miles.

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Total cost of Laguana's Truck = $20+2m$ .... (1)

Salvatori's truck rentals charges $3 per mile.

Total cost of Salvatori's truck = $3m$ ... (2)

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3 years ago

Estimate the domain

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Solve the equation by completing the square. Round to the nearest hundredth if necessary. X^2 + 5x-10=0

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$(*)\\(a+b)^2=a^2+2ab+b^2$

$x^2+5x-10=0\ \ \ |+10\\\\x^2+2\cdot x\cdot2.5=10\ \ \ |+2.5^2\\\\\underbrace{x^2+2\cdot x\cdot2.5+2.5^2}_{(*)}=10+2.5^2\\\\(x+2.5)^2=16.25\to x+2.5=\pm\sqrt{16.25}\\\\x+2.5\approx-4.03\ \vee\ x+2.5=4.03\ \ \ |-2.5\\\\x\approx-6.53\ \vee\ x\approx1.53$

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3 years ago