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3 years ago

What is the equation of a line perpendicular to the line 7x+4y=15+2x and passes through the point (0.5,0.5)?

Mathematics

1 answer:

Rzqust [24]3 years ago

8 0

4y=-5x+15
y=-5/4x+15/4
y-1/2=4/5(x-1/2)
y-1/2=4/5x-2/5
y-5/10=4/5x-4/10
y=4/5x+1/10

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If you had $350 and you spent the following

Olin [163]

Answer:

B.) $58

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Solve.<br><br> The answer must be a fraction. Solve by substituting.

maw [93]

Answer: x = -14/5

Step-by-step explanation: We shall begin by expanding the brackets for both sides of the equation

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By collecting like terms we now have

(-2x/3) - (x/6) = 1 + 4/3

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3 years ago

A boat travels upstream for 48 miles in 3 hours and returns in 2 hours traveling downstream in a river. What is the rate of the

alekssr [168]

Answer:

20 mph and 4 mph

Step-by-step explanation:

GIVEN: A boat travels upstream for $48$ miles in $3$ hours and returns in $2$ hours traveling downstream in a river.

TO FIND: What is the rate of the boat in still water and the rate of the current.

SOLUTION:

Let the speed of boat in still water be $s$ and speed of current be $a$ .

$\therefore$ speed of water in upstream $=s+a$

speed of water in downstream $=s-a$

As $speed=\frac{distance}{time}$

$s+a=\frac{48}{3}=16$

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Solving both we get

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4 years ago

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pishuonlain [190]

9514 1404 393

Answer:

(a) -29,884,416

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Step-by-step explanation:

(a) The coefficient of the k-th term of the expansion is ...

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