2 years ago

Solve the equation 7m^2-4m+1=0. fully simplify all answers, including non-real solutions m=

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

8 0

Answer:

m is not an element of real number

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Answer:

Step-by-step explanation:

We can use the equation of a straight line to model the cost of servicing the car.

let the cost be y and the number of hours be x

and the charge per hour is m

y=mx+c

y=50x+25

given that the time is 3.45 hours it is assumed that the charge is for 4 hours since for a fraction of 0.45 hours we are charged $50

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Two numbers whose difference is 8 add up to 50. What is the smaller of these two numbers?

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Step-by-step explanation:

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3 years ago

5. 40 = }(9x + 30) + 2

Anvisha [2.4K]

Answer:

x=-16

Step-by-step explanation:

We are given with the equation

$40=-\frac{1}{3} \times (9x+30)+2$

We are asked to solve it for x.

Distributing $\frac{1}{3}$ over bracket and simplifying

$40=-(\frac{9x}{3}+\frac{30}{3})+2$

$40=-(3x+10)+2$

$40=-3x-10+2$

$40=-3x-8$

Adding 8 on both sides

$48=-3x$

Dividing both sides by -3

$x=-16$

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