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2 years ago

10

When Erik solved this problem,he got 5/2 of a mile for his answer

1 answer:

mixas84 [53]2 years ago

5 0

Answer: 4

Step by-step explanation: 4 cans for 3 dollars. Since this only costs <em><u>1$ more than</u></em> the possible prices of the <em><u>4 cans</u></em> then that's the answer.

In shorter terms; it's like 1 can cost 2 dollars on the 3 for 4 deal, and 1 can cost 3 dollars on the 9 for 12 deal, find this out by subtracting 9 from 12 and subtracting 3 from 4

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If x√(1+y) + y√(1+x) = 0 , then dy/dx = ?

frutty [35]

$DIFFERENTIAL \: \: \: CALCULUS \\ \\ \\ Given \: expression \: - \\ \: \\ x \sqrt{1 + y} \: = \: y \sqrt{1 + x} \\ \\ x \sqrt{1 + y} \: = \: - y \sqrt{1 + x} \\ \\ \\ Squaring \: both \: sides \: , \: We \: get \: - \: \\ \\ {x}^{2} (1 + y) = {y}^{2} (1 + x) \\ \\ {x}^{2} + {x}^{2} y - {y}^{2} - x {y}^{2} = 0 \\ \\ ( {x}^{2} - {y}^{2} ) + xy(x - y) = 0 \\ \\ (x - y)(x + y + xy) = 0 \\ \\ Therefore \: , \: either \: \: y=x \: \: or \: \\ \: \: \: \: \: \: \: \: \: \: \: x+y+xy=0 \\ \\ \\ Since \: , \: \: x=y \: \: doesn't \: satisfy \: the \\ given \: function \: , \: we \: reject \: it \\ \\ x + y + xy = 0 \\ \\ y \: \: = \: \: \frac{ - x}{1 + x} \\ \\ \frac{dy}{dx} \: \: = \: - \: \frac{(1 + x) - x.1}{ {(1 + x)}^{2} } \\ \\ \\ \frac{dy}{dx} = \frac{ - 1}{( {1 + x)}^{2} } \: \: \: \: \: \: \: \: \: Ans.$

6 0

2 years ago

A blender that normally costs $ 130 is on sale for 12 % off. What is the final cost of the blender if there is also an 8 % sales

ludmilkaskok [199]

Answer:

The final price of blender after sale off and sales tax = $123.552 A

Step-by-step explanation:

Given as :

The costs of blender = $130

The sale off percentage = 12%

The sales tax applied on blender price = 8%

Now

The cost of blender after sale off = $130 - 12% of $130

The cost of blender after sale off = $130( $\frac{100 - 12}{100}$ )

I.e The cost of blender after sale off = $130 × $\frac{82}{100}$ = $114.4

Again, sales tax of 8% is applied after sale off

So, Final price of blender = $114.4 + 8% of $114.4

Final price of blender = $114.4 ( $\frac{108}{100}$ )

I.e Final price of blender = $123.552

Hence the final price of blender after sale off and sales tax = $123.552 Answer

5 0

2 years ago

What is the value of x? sin(x+34)°=cos(2x+20)° Enter your answer in the box. x =

masha68 [24]

Answer:

The correct answer is -9.73°.

Step-by-step explanation:

The procedure is:

sin(x + 34)°=cos(2x+20)°

⇒ tan $\frac{x+34}{2x+20}$ = 1 ; [assuming cos (2x+20)° $\neq$ 0]

⇒ x + 34 = 45 × ( 2x +20)

⇒ x + 34 = 90x + 900

⇒ 89x = -866

⇒ x = -9.73

and also 2x + 20 = 90° ⇒ x = 35°; but this does not satisfy the given equation.

Therefore the value of x is given by -9.73°.

4 0

2 years ago

What is the base 2 representation of 10

eduard

0.8 is the correct answer

8 0

2 years ago

Whats the parent and shift for y=x-6

Sonbull [250]

The parent function is either identity function or constant function
the translation is down 6

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2 years ago