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1 year ago

Three times the difference between t and y"

Mathematics

1 answer:

Harlamova29_29 [7]1 year ago

8 0

Answer: 3(t-y)

Step-by-step explanation:

The term difference refers to subtraction, so that means t-y in parenthesis since you would have to solve that first.

Then after you'd solve that, then you would multiply it by 3

Hope I helped :)

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a welder earns $20 an hour for the first 40 hours she works in a week and $30 for every hour over 40 hours. Determine a piece wi

7nadin3 [17]

If she works 40 hours or less then she earns 20x dollars.
If she works more than 40 hours, then she earns 20×40 dollars for the first 40 hours and 30×(x-40) dollars for <span>every hour over 40 hours. The number of hours over 40 hours is x-40.</span>

$f(x)= \left \{ {{20x,x \leq 40} \atop {40\times20+30(x-40),x\ \textgreater \ 40} \right.$

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3 years ago

Consider f and c below. f(x, y) = (7 + 8xy2)i + 8x2yj, c is the arc of the hyperbola y = 1/x from (1, 1) to 3, 1 3 (a) find a fu

KonstantinChe [14]

$\dfrac{\partial f}{\partial x}=7+8xy^2$

$\dfrac{\partial f}{\partial y}=8x^2y$

The first equation gives

$f(x,y)=7x+4x^2y^2+g(y)$

Differentiating with respect to $y$ gives

$8x^2=8x^2y+\dfrac{\mathrm dg}{\mathrm dy}\implies\dfrac{\mathrm dg}{\mathrm dy}=0\implies g(y)=K$

for some constant $K$ . So

$f(x,y)=7x+4x^2y^2+K$

and by the fundamental theorem of calculus,

$\displaystyle\int_C\nabla f\cdot\mathrm d\vec r=f\left(3,\frac13\right)-f(1,1)=25-11=\boxed{14}$

4 0

3 years ago

Help please

love history [14]

Answer:

Tallahassee's Range: 6

Key West's Range: 4

Step-by-step explanation:

To calculate range, you'd subtract the lowest value from the highest value

Tallahassee:

Highest Value: 90

Lowest Value: 84

Range: 90 - 84 = 6

Key West:

Highest Value: 87

Lowest Value: 83

Range: 87 - 83 = 4

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3 years ago

What’s the propbilty anya gets blue on both spinnes

Harrizon [31]

Answer:

Since the total number on a spinner is 8 and there are 2 of them we get 8 + 8=16 and the blue one has 1 and they are 2 we get 1+1=2.probability=desired chances/total chances =2/16

Step-by-step explanation:

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2 years ago

Solve for x: 6> - 2/3 (7x-2)

lisov135 [29]

6>-2/3(7×-2)

6>-14/3x+4/3

14/3x>4/3-6

=14/3x>-14/3

=x=1

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3 years ago