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3 years ago

Find the equation of the graphed line.

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

6 0

Answer:

A - y = -1/2 - 2

Step-by-step explanation:

the y intercept is at -2

the slope goes down 1 and over 2

yulyashka [42]3 years ago

3 0

It’s the first one; a)

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Whoever answers I’ll mark brainliest

Andre45 [30]

Answer:

x is 60⁰ because 180 - 40 is 120 divide it by 2 because the bottem angles are equal and u get 60

5 0

2 years ago

Evaluate 6+x6+x6, plus, x when x=3?

vampirchik [111]

Answer:

Step-by-step explanation:

x=3

6+x6+x6

6+(3)6+(3)6

6=6

(3)6=18

6+18+18

24+18

Hope this helps ;) ❤❤❤

8 0

3 years ago

Read 2 more answers

A. Evaluate ∫20 tan 2x sec^2 2x dx using the substitution u = tan 2x.

irakobra [83]

Answer:

The integral is equal to $5\sec^2(2x)+C$ for an arbitrary constant C.

Step-by-step explanation:

a) If $u=\tan(2x)$ then $du=2\sec^2(2x)dx$ so the integral becomes $\int 20\tan(2x)\sec^2(2x)dx=\int 10\tan(2x) (2\sec^2(2x))dx=\int 10udu=\frac{u^2}{2}+C=10(\int udu)=10(\frac{u^2}{2}+C)=5\tan^2(2x)+C$ . (the constant of integration is actually 5C, but this doesn't affect the result when taking derivatives, so we still denote it by C)

b) In this case $u=\sec(2x)$ hence $du=2\tan(2x)\sec(2x)dx$ . We rewrite the integral as $\int 20\tan(2x)\sec^2(2x)dx=\int 10\sec(2x) (2\tan(2x)\sec(2x))dx=\int 10udu=5\frac{u^2}{2}+C=5\sec^2(2x)+C$ .

c) We use the trigonometric identity $\tan(2x)^2+1=\sec(2x)^2$ is part b). The value of the integral is $5\sec^2(2x)+C=5(\tan^2(2x)+1)+C=5\tan^2(2x)+5+C=5\tan^2(2x)+C$ . which coincides with part a)

Note that we just replaced 5+C by C. This is because we are asked for an indefinite integral. Each value of C defines a unique antiderivative, but we are not interested in specific values of C as this integral is the family of all antiderivatives. Part a) and b) don't coincide for specific values of C (they would if we were working with a definite integral), but they do represent the same family of functions.

3 0

3 years ago

Find the value of y when x equals 0 . -7x+3y=30

Aneli [31]

X is 0, so it cancels out the 7. So then 3 divided by 30 is 10. Y=10.

3 0

3 years ago

Read 2 more answers

Given a sphere with a diameter of 8 cm, find its volume to the nearest whole number

arsen [322]

Answer:

268 cm

Step-by-step explanation:

A P E X

4 0

3 years ago