3 years ago

What is the equation of the line with m=2.5 and b=7

1 answer:

4 0

Y=2.5x+b

Skeleton equation: y=mx+b

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mixas84 [53]

X+y=57
y=x+15
x+x+15=57
2x=42
x=21
y=21+15
y=36

5 0

3 years ago

Mashutka [201]

Answer:

$\sqrt\frac{387}{20}$

Step-by-step explanation:

$Arc Length =\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^2 } } \, dx$

$y=\dfrac{3}{5}x^{\frac{5}{3}}- \dfrac{3}{4}x^{\frac{1}{3}}+6$

$\frac{dy}{dx} =x^{\frac{2}{3}}-\dfrac{1}{4}x^{-\frac{2}{3}}$

$1+(\frac{dy}{dx})^2 }=1+(x^{\frac{2}{3}}-\dfrac{1}{4}x^{-\frac{2}{3}})^2\\=1+(x^{\frac{4}{3}}-\dfrac{1}{2}+ \dfrac{1}{16}x^{-\frac{4}{3}})$

$=\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}}$

For the Interval $1\leq x\leq 8$

Length of the Curve $=\int\limits^8_1 {\sqrt{\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}} } } \, dx\\$

Using T1-Calculator

$=\sqrt\frac{387}{20}$

3 0

4 years ago

shtirl [24]

B. if u have wdgenuity it’s B i took the test

3 0

2 years ago

Vitek1552 [10]

I think it is C.Skewed right.

5 0

3 years ago

n200080 [17]

9 x 8 = 72

9 + 9 +9 + 9 + 9 +9 + 9 + 9 = 72

6 0

3 years ago