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Mashutka [201]
2 years ago
14

9 - x2 + 2xy - y2 Factorise

Mathematics
1 answer:
LenaWriter [7]2 years ago
5 0

9-x.2+2xy-y.2

9-2x+2xy-2y

-2x+2xy-2y+9

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Mike hiked to a lake in 4.5 hours at an average rate of 2
aleksandrvk [35]

Answer:

It took Pedro  <em>3.81 hours</em> to reach the lake.

Step-by-step explanation:

Time taken by Mike to hike a lake = 4.5 hours

Average rate of Mike while hiking the lake = 2\frac{1}{5}\ miles/hr

Formula for distance can be seen as:

Distance = Speed\times Time

Distance traveled by Mike = 4.5 \times 2\frac{1}{5} = 4.5\times \frac{11}{5} = 9.9\ miles

Rate of Pedro while hiking the same distance = 2\frac{3}{5}\ miles/hr = \frac{13}{5}\ miles/hr

Given that, Pedro also travels the same distance.

And we have to find the Time.

Time = \dfrac{Distance}{Speed}

Time = \dfrac{9.9}{\frac{13}{5}}\\\Rightarrow Time = \dfrac{9.9\times 5}{13} = \bold{3.81\ hours}

It took Pedro  <em>3.81 hours</em> to reach the lake.

6 0
2 years ago
$140 for 18ft squared=?????
andrew11 [14]
Unit rate means how much does it cost for 1 unit
140 for 18ft^2

divide by 18
140/18=7.77777777777777
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8 0
3 years ago
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Mason claims that he can cut a parallelogram into two right scalene triangle. Which diagram best supports his claim
kkurt [141]

Answer:

THE ANSWER IS OPTION B

Because it has angles and all of them are not the same measure

3 0
1 year ago
Can someone help out I’m confused.
iragen [17]

Answer:

y=-2/5x-3

Step-by-step explanation:

the slope is m and the y intercept is b

8 0
2 years ago
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I need the answer ASAP please help
Fantom [35]

Answer:

5 and 50

Step-by-step explanation:

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Distance is 5*10=50

5 0
2 years ago
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