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otez555 [7]
3 years ago
15

Pls help and thank you lolz

Mathematics
2 answers:
guapka [62]3 years ago
3 0

Answer:

55

Step-by-step explanation:

there are two ways to answer : since angle 1 and the 125 degree angle are a linear pair, you can do 180-125 = 55, or, since the three angles in the triangle always add up to 180, you can do 180-37-88 = 55.

Anna35 [415]3 years ago
3 0

Answer:

55 degrees

Step-by-step explanation:

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What is the slope of a line that passes through (2,7) and (-3,5)
Damm [24]

Answer:

2/5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(5-7)/(-3-2)

m=-2/-5

m=2/5

7 0
3 years ago
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8<br> m_AHI = 13x +9, mZGHI = 137°,<br> and mZGHA = 8x + 2. Find x.<br> H<br> G
777dan777 [17]

Answer:

x = 6

Step-by-step explanation:

<GHA + <AHI = <GHI

(8x + 2) + (13x + 9) = 137

8x + 13x + 2 + 9 = 137

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x = 126/21

x = 6

3 0
2 years ago
“encontrar la integral indefinida y verificar el resultado mediante derivación”
Oliga [24]

I=\displaystyle\int\frac x{(1-x^2)^3}\,\mathrm dx

Haz la sustitución:

y=1-x^2\implies\mathrm dy=-2x\,\mathrm dx

\implies I=\displaystyle-\frac12\int\frac{\mathrm dy}{y^3}=\frac1{4y^2}+C=\frac1{4(1-x^2)^2}+C

Para confirmar el resultado:

\dfrac{\mathrm dI}{\mathrm dx}=\dfrac14\left(-\dfrac{2(-2x)}{(1-x^2)^3}\right)=\dfrac x{(1-x^2)^3}

I=\displaystyle\int\frac{x^2}{(1+x^3)^2}\,\mathrm dx

Sustituye:

y=1+x^3\implies\mathrm dy=3x^2\,\mathrm dx

\implies I=\displaystyle\frac13\int\frac{\mathrm dy}{y^2}=-\frac1{3y}+C=-\frac1{3(1+x^3)}+C

(Te dejaré confirmar por ti mismo.)

I=\displaystyle\int\frac x{\sqrt{1-x^2}}\,\mathrm dx

Sustituye:

y=1-x^2\implies\mathrm dy=-2x\,\mathrm dx

\implies I=\displaystyle-\frac12\int\frac{\mathrm dy}{\sqrt y}=-\frac12(2\sqrt y)+C=-\sqrt{1-x^2}+C

I=\displaystyle\int\left(1+\frac1t\right)^3\frac{\mathrm dt}{t^2}

Sustituye:

u=1+\dfrac1t\implies\mathrm du=-\dfrac{\mathrm dt}{t^2}

\implies I=-\displaystyle\int u^3\,\mathrm du=-\frac{u^4}4+C=-\frac{\left(1+\frac1t\right)^4}4+C

Podemos hacer que esto se vea un poco mejor:

\left(1+\dfrac1t\right)^4=\left(\dfrac{t+1}t\right)^4=\dfrac{(t+1)^4}{t^4}

\implies I=-\dfrac{(t+1)^4}{4t^4}+C

4 0
3 years ago
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DerKrebs [107]

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Step-by-step explanation:

Given

\frac{\mathrm{d} \bar{c}}{\mathrm{d} x}=-6x^{-2}+\frac{1}{6}

d\bar{c}=\left (  -6x^{-2}+\frac{1}{6}\right )dx

Now, integrating both sides

\int d\bar{c}=\int \left (  -6x^{-2}+\frac{1}{6}\right )dx

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6 0
3 years ago
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Setler [38]

Answer:

The slope is 10/8

Step-by-step explanation:

You would rise 10 units and you would run 8 units.

6 0
3 years ago
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