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lara [203]
3 years ago
6

Which of the following is the most appropriate unit to describe the rate at which water flows over niagra falls?

Mathematics
1 answer:
Mrac [35]3 years ago
6 0
Billion gallons per day, because the independent quantity is volume of water in billion gallons and dependent quantity is time in days.
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Terrance claims that for the input coordinates (x, y), a rotation of 180° clockwise about the origin, followed by a reflection o
vodka [1.7K]

Answer:

Terrance is incorect.

Correct output coordinates (-y,-x)

Step-by-step explanation:

Let (x,y) be the input coordinates.

First translation is a rotation of 180° clockwise about the origin. This translation has a rule

(x,y)\rightarrow (-x,-y)

Second translation is a reflection over the line y = x. The general rule for the reflection across the line y=x has the rule

(a,b)\rightarrow (b,a)

When a sequence of two translations are applied to the initial input coordinates, then

(x,y)\rightarrow (-x,-y)\rightarrow (-y,-x)

As you can see Terrance made a mistake and these two transformations do not cancel themselves out.

8 0
3 years ago
(It’s a 6 not a 5)<br> A-dot 1<br> B-dot 2<br> C-dot 3<br> D-dot 4
Taya2010 [7]
A- dot 1 . that’s the answer but it’s making me type 20 words.
8 0
3 years ago
Solve for me please this is trigonometry
Vladimir79 [104]

Answer:

x= 23.4

Step-by-step explanation:

In a right triangle the tangent of an angle is the ratio of the opposite length over the adjacent*. In formulas, tan 54° = x/17 Solving for x, using a calculator for the tangent, x= 23.4

*I promise I didn't just spellcheck that.

3 0
2 years ago
Perform the operation.<br> (-x^2 – 1) – (-2x^2 – 4)
ivolga24 [154]

Answer:

Okay!

Step-by-step explanation:

I have simplified the operation, and I got x^2 + 3.

If you wanted me to evaluate, the answer is still  x^2 + 3.

If you wanted me to subtract then the answer is again,  x^2 + 3.

Basically the answer is  x^2 + 3.

Have a good day!

6 0
3 years ago
Rachel earned $34 in 4 hours at her job today. She wants to know how much she could earn (e) tomorrow if she works 10 hours at t
Contact [7]
$34 divided by 4 = $8.5 per hour.
$8.5 Times 10 hours = $85
So she would earn $85
6 0
3 years ago
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