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ella [17]
3 years ago
8

Between 11 P.M. and 8:20 A.M.​, the water level in a swimming pool decreased by

Mathematics
1 answer:
makkiz [27]3 years ago
7 0
-2 dropped in that hour of time
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Kevin drove 693 miles in 11 hours. At the same rate, how many miles would he drive in 9 hours
rodikova [14]

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567 Miles

Step-by-step explanation:

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3 years ago
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What is an equivalent expression for 6(x-1)?
bezimeni [28]

Answer:

6x-6

Step-by-step explanation:

3 0
2 years ago
Simply<br> tan 45°. sin 30° - cot 45°/sec 60°​
dusya [7]

If we want to write the given four numbers in another form, we can write it like this;

tan45=sin45/cos45=1

sin30=sin(\frac{\pi }{2}-60 )=cos60=\frac{1}{2}

cot45=cos45/sin45=1

sec60=1/cos60=\frac{1}{1/2} =2

Now let's rewrite the given expression and get the result.

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5 0
1 year ago
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Can someone PLEASE solve this quadratic equation by factoring with the steps? :(
salantis [7]

Answer:

There are no simple factors to this expression.  You can however solve for x, giving you:

x = -1 ± √(y + 3)

Step-by-step explanation:

There is no simple pair of factors to this equation, so we'll have to go through the full process.  You can see that by observing that there is no pair of rational numbers that add to make 2 and multiply to make -2.  We can however solve for x:

y = x^2 + 2x - 2\\y + 2 = x^2 + 2x\\y + 3 = x^2 + 2x + 1\\y + 3 = (x + 1)^2\\(x + 1)^2 = y + 3\\x + 1 = \pm \sqrt{y + 3}\\x = -1 \pm \sqrt{y + 3}

5 0
3 years ago
There are 100m of ribbon. 1 1/2m are needed to make a bouquet. How man can be made? How many m of ribbon are left over ?
Umnica [9.8K]

Answer:

66 can be made

1m left

Step-by-step explanation:

100 \div 1.5 = 66.667(5s.f.)

Ribbons that can be made= 66

66 \times 1.5 = 99m

length used= 99m

length remaining= 100m- 99m= 1m

8 0
3 years ago
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