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3 years ago

HELP ME PLSS BRAINIEST

Mathematics

2 answers:

melamori03 [73]3 years ago

6 0

I just need points but u already got ur answer so yeah have a nice day :)

zvonat [6]3 years ago

5 0

(x-7)^2 = 12
Explaination: it’s the answer trust me on this one :D

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Help!!Need help please help me

irina [24]

8x-6y=-96 add to this -4 times the second equation...
-8x-12y=-48
___________

-18y=-144

y=8, this makes 8x-6y=-96 become:

8x-48=-96

8x=-48

x=-6

so the solution to the system of equations is the point:

(-6,8)

3 0

3 years ago

Given the following vector fields and oriented curves C, evaluate integral F * T dsF = <-y, x> on the semicircle r(t) = &l

luda_lava [24]

Answer:

Answer is 16 $\pi$ .

Step-by-step explanation:

4 0

3 years ago

zhenek [66]

Answer:

Step-by-step explanation:

length = x +x + 2 = 2x + 2

Width = 2+ x

Area of rectangle = length *width

(x +2)(2x + 2) = 110

Use FOIL method

x*2x + x*2 + 2*2x + 2*2 = 110

2x² + 2x + 4x + 4 - 110 = 0 {Combine like terms}

2x² +6x - 106 = 0

a = 2 ; b = 6 ; c = -106

b² - 4ac = 6² - 4*2*(-106)

= 36 + 848

= 884

$\sqrt{b^{2}-4ac}=\sqrt{884}= 29.73$

$x =\dfrac{-b+\sqrt{b^{2}-4ac}}{2a} \ ; \ x==\dfrac{-b-\sqrt{b^{2}-4ac}}{2a}\\\\x = \dfrac{-6+29.73}{2*2} \ ; \ x =\dfrac{-6-29.73}{2*2} \ this \ is \ ignored \ as \ it \ is \ negative\\\\x=\dfrac{23.73}{4};$

x = 5.93 m

5 0

3 years ago

Solve. x /5 + 3 = 2 A) -5 B) 25 C) 5 D) - 1/5 help me

Ilia_Sergeevich [38]

X/5 + 3 = 2
x+15=10
x=-5
Ans : A

8 0

3 years ago

A laptop computer is purchased for $2700. Each year, it’s value is 70% of its value the year before after how many years will la

n200080 [17]

Answer: 5 years!

Reasoning:

Year 1: 2700 x .70=1890

Year 2: 1890 x .70= 1323

Year 3: 1323 x .70= 926.1

Year 4: 926.1 x .70= 648.27

Year 5: 648.27 x .70=453.79

3 0

3 years ago