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3 years ago

What do the following equations represent -4x-4y=-5 and x-2y=1

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Answer:

The answer to your question is: D = non of the above

Step-by-step explanation:

Data

-4x - 4y = -5 (I)

x - 2y = 1 (II)

Process

Find the slopes of both lines

(I) -4x - 4y = -5

-4y = 4x + 5

y = 4/-4 x + 5/-4

y = - x + 5/4

(II) x - 2y = 1

- 2y = - x + 1

y = -1/-2 x + 1/-2

y = 1/2 x - 1/2

The slopes are different slope 1 = -1 and slope 2 = 1/2, so there is no relation between the lines.

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5x2 – 15x – 20. factorise

hoa [83]

Answer:

5(x−1)(x+4)? i think

Step-by-step explanation:

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3 years ago

Amino Buys A Book For Rupees 275 And Sells It At A Loss Of 15% How Much Does She Sell It For

Kruka [31]

Answer:

$233.75

Step-by-step explanation:

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3 years ago

Read 2 more answers

the stemplot below represents the distribution of the test scores for the final exam in a high school algebra course. what was t

Deffense [45]

Answer:

Option A. 94

Explanation:

The column of digits to the left (before the vertical line) contains the largest place-value digits.

Here is how you read the values:

First row: 65

Second row: 73, 74, 78

Third row: 80, 80, 81, 82, 85, 88, 89

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Thus, the highest score received is 94.

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3 years ago

Help Me ASAP!

I am Lyosha [343]

Answer:

Answer is a

Step-by-step explanation:

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3 years ago

Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest w

Sonja [21]

Answer:

173/3 feet per second

Step-by-step explanation:

So we know that jackrabbits can travel at 40 miles per hour, and we are trying find how fast they can travel in feet per second. To do this, we must first convert the 40 miles per hour into feet per hour:

$\frac{40mi}{1hr}*\frac{5280ft}{1mi}=\frac{211200ft}{1hr}$

So now we know that 40 miles per hour is equal to 211200 feet per hour. Now we have to convert feet per hour to feet per second. To do this, we must first find the feet per minute (60 min = 1 hr):

$\frac{211200ft}{1hr}*\frac{1hr}{60min}=\frac{211200ft}{60min}=\frac{3520ft}{1min}$

So now we know that 211200 feet per hour is equal to 3520 feet per minute. Now we have to convert feet per minute into feet per second (60 s = 1 min):

$\frac{3520ft}{1min}*\frac{1min}{60s}=\frac{3520ft}{60s}=\frac{176ft}{3s}=\frac{173}{3}ft/s$

So now we know that 3520 feet per minute is equal to 173/3 feet per second.

Since 40 miles per hour equals 211200 feet per hour which equals 3520 feet per minute which equals 173/3 feet per second, 40 miles per hour equals 173/3 feet per second.

The jackrabbits can run at 173/3 feet per second.

I hope this helps. :)

5 0

3 years ago