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3 years ago

Systems of Equations - Elimination method 2x-y=17 x-y=10

2 answers:

5 0

The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems

emmainna [20.7K]3 years ago

3 0

2x - y = 17
-(x - y = 10)

x = 7

7 - y = 10
y = -3

(7,-3)

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Use Green's Theorem to evaluate the line integral along the given positively oriented curve.

FromTheMoon [43]

Answer:

∫ C ( y + e√x) dx + ( 2x + cosy² ) dy = 1/3

Step-by-step explanation: See Annex

Green Theorem establishes:

∫C ( Mdx + Ndy ) = ∫∫R ( δN/dx - δM/dy ) dA

Then

∫ C ( y + e√x) dx + ( 2x + cosy² ) dy

Here

M = 2x + cosy² δM/dy = 1

N = y + e√x δN/dx = 2

δN/dx - δM/dy = 2 - 1 = 1

∫∫(R) dxdy ∫∫ dxdy

Now integration limits ( see Annex)

dy is from x = y² then y = √x to y = x² and for dx

dx is from 0 to 1 then

∫ dy = y | √x ; x² ∫dy = x² - √x

And

∫₀¹ ( x² - √x ) dx = x³/3 - 2/3 √x |₀¹ = 1/3 - 0

∫ C ( y + e√x) dx + ( 2x + cosy² ) dy = 1/3

5 0

3 years ago

Pawl,colin and bria are waiters. One night the restaurant earns tips totalling £78.40 the share the tips in the ratio 2.1.5 how

stellarik [79]

Answer: Brian gets $39.2 more over Colin.

Step-by-step explanation:

Given: Total tip amount = £78.40

The ratio of the share of tips for Pawl, Colin and Bria is 2:1 :5.

Let tip amount for Pawl = 2x, tip amount for Colin = x , tip amount for Bria = 5x

Then, 2x+x+5x= 78.40

$\Rightarrow\ 8x = 78.40\\\\\Rightarrow x=\dfrac{78.40}{8 }\\\\\Rightarrow x=9.8$

Tip for Colin = $ 9.8 , Tip for Bria = 5($9.8)= $49

Difference = $(49-9.8) = $ 39.2

Hence, Brian gets $39.2 more over Colin.

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3 years ago

X^2+10x-7 / x^2+10x+25=0 <br> how do i solve for x?

liq [111]

Factorize both the numerator and denominator then equate to zero ...you'll get X

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3 years ago

Read 2 more answers

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lawyer [7]

Answer:

so the zero is (20,0) but just so you know you can go to desmos and it will answer all of your graphing questions.

Step-by-step explanation:

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3 years ago

Circle.center:(2,-5).radius:9

Kaylis [27]

Answer:

Step-by-step explanation:

eq. of circle with center (h,k) and radius=r is

(x-h)²+(y-k)²=r²

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3 years ago