3 years ago

Javier is considering two options for college.

Mathematics

2 answers:

Galina-37 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Rufina [12.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

I got it right in Edginuity.

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If a 36-inch yardstick casts a 21-foot shadow, how tall is a building whose shadow is 168 feet?

MAVERICK [17]

The building would have to be 24 feet tall

36 inch is 3 ft
21/3=7
168/7=24

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3 years ago

Can someone please tell me what 54.5 + 48.51

Soloha48 [4]

Answer:

103.01

Step-by-step explanation:

54.5 + 48.51 = 103.01

Not sure how else you would like me to explain it.

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3 years ago

If Alejandro walks 3 miles in 43 minutes, then how far will Austin walk in 93 minutes?

san4es73 [151]

Answer:

Step-by-step explanation:

43min=3miles

93min=3*93=279/43

austin will walk 6.488miles for 93 minutes

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3 years ago

For the diagram shown, x = 80 and y = 30. Determine the value of z. A) 20 B) 40 C) 50 D) 100

Lisa [10]

Answer:D

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find an explicit solution to the Bernoulli equation. y'-1/3 y = 1/3 xe^xln(x)y^-2

NNADVOKAT [17]

$y'-\dfrac13y=\dfrac13xe^x\ln x\,y^{-2}$

Divide both sides by $\dfrac13y^{-2}(x)$ :

$3y^2y'-y^3=xe^x\ln x$

Substitute $v(x)=y(x)^3$ , so that $v'(x)=3y(x)^2y'(x)$ .

$v'-v=xe^x\ln x$

Multiply both sides by $e^{-x}$ :

$e^{-x}v'-e^{-x}v=x\ln x$

The left side can be condensed into the derivative of a product.

$(e^{-x}v)'=x\ln x$

Integrate both sides to get

$e^{-x}v=\dfrac12x^2\ln x-\dfrac14x^2+C$

Solve for $v(x)$ :

$v=\dfrac12x^2e^x\ln x-\dfrac14x^2e^x+Ce^x$

Solve for $y(x)$ :

$y^3=\dfrac12x^2e^x\ln x-\dfrac14x^2e^x+Ce^x$

$\implies\boxed{y(x)=\sqrt[3]{\dfrac14x^2e^x(2\ln x-1)+Ce^x}}$

4 0

3 years ago