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2 years ago

12

A submarine dives below the surface, heading downward in six moves. If each move downward was 180 feet, where is the submarine a

fter it is finished diving?

1 answer:

zhenek [66]2 years ago

3 0

The answer is 12,0000000000

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The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

Ad libitum [116K]

$5^2 + 12^2 = 13^2$

is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

$x^2 + (x+7)^2 = 13^2$

$2x^2 + 14 x + 49 - 169 = 0$

$x^2 + 7x - 60 = 0$

$(x+12)(x-5)=0$

Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

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3 years ago

There is 4.8% sales tax on all clothing items purchased. Danielle wants to buy a shirt, which costs $18.95. Danielle figures tha

inysia [295]

Answer:

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

Step-by-step explanation:

we know that

The total amount is equal to the price of the shirt plus the sales tax

we have that

$100\%+4.8\%=104.8\%=104.8/100=1.048$

Multiply 1.048 by the cost of the shirt

$\$18.95(1.048)=\$19.86$

Compare

$\$19.86 < \$20$

therefore

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

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4 years ago

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choli [55]

Answer:

below

Step-by-step explanation:

c = 8 and d = -3

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r = -3 and s = -4

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3 years ago

Evaluate the function for the given value of x <br><br><br>f(n)=n^2-6n+7n at n=3 <br><br><br><br>

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F(n)=13
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3 years ago