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3 years ago

Carl's dog weighs 2 1/3 times what judy's dog weighs. if judy's dog weighs 35 1/2 pounds, how much does cal's dog weigh?

Mathematics

1 answer:

dangina [55]3 years ago

5 0

Cal's dog weighs approximately 94 pounds.

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If 2x2 + y2 = 17 then evaluate the second derivative of y with respect to x when x = 2 and y = 3. Round your answer to 2 decimal

Vera_Pavlovna [14]

Answer:

y''=-1.26

Step-by-step explanation:

We are given that $2x^2+y^2=17$

We have evaluate the second order derivative of y w.r.t. x when x=2 and y=3.

Differentiate w.r.t x

Then , we get

$4x+2yy'=0$

$2x+yy'=0$

$yy'=-2x$

$y'=-\frac{2x}{y}$

Again differentiate w.r.t.x

Then , we get

$2+(y')^2+yy''=0$ $(u\cdot v)'=u'v+v'u)$

$2+(y')^2+yy''=0$

Using value of y'

$yy''=-2-(-\frac{2x}{y})^2$

$y''=-\frac{2+(-\frac{2x}{y})^2}{y}$

Substitute x=2 and y=3

Then, we get $y''=-\frac{2+(\frac{4}{3})^2}{3}$

$y''=-\frac{18+16}{9\times 3}=-\frac{34}{27}$

Hence,y''=-1.26

6 0

3 years ago

Randy donated 1/6 of his savings to charity and spent the rest of gifts for 3 friends. If each friend received a gift worth $10

Tanzania [10]

Randy donated $6. he originally started with $36 and 5/6 of that is 30, meaning 1/6 of 36 is 6.

8 0

3 years ago

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^Solve for x. Please help me if you can I really need the answer

vagabundo [1.1K]

Answer:

x ≈ 25.1

Step-by-step explanation:

Using the sine ratio in the right triangle

sin26° = $\frac{opposite}{hypotenuse}$ = $\frac{11}{x}$ ( multiply both sides by x )

x × sin26° = 11 ( divide both sides by sin26° )

x = $\frac{11}{sin26}$ ≈ 25.1 ( to 1 dec. place )

8 0

2 years ago

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14(5-1/5×25)+2÷4×1 How Do I Evaluate This Expression ?

True [87]

Use the distributive property and multiply everything in the parentheses by 14.
Leaving you with.. (70 - 3.5 x 350) + 2 / 4 x 1.
Then reduce the parentheses.
Leaving you with.. ( -1155) + 2 / 4 x 1
Then divide 2 by four.
Leaving you with.. (-1155) + .5
Answer.. -1,154.5

7 0

3 years ago

How do you solve for x? -10 - 2x > 54

expeople1 [14]

Answer:

x< -64

Step-by-step explanation:

hope this helps ;)

4 0

2 years ago

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