3 years ago

The segment shown below could form a triangle.

Mathematics

2 answers:

valentina_108 [34]3 years ago

7 0

Answer:

true

Step-by-step explanation:

klio [65]3 years ago

3 0

Answer:

true

Step-by-step explanation:

hope this helps :)

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The graph shows the cost per day of electricity over a seven-day period.

Darina [25.2K]

A. Negative. You’re welcome

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3 years ago

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Solve the initial value problem: y'(x)=(4y(x)+25)^(1/2) ,y(1)=6. you can't really tell, but the '1/2' is the exponent

goblinko [34]

Answer:

$y(x)=x^2+5x$

Step-by-step explanation:

Given: $y'=\sqrt{4y+25}$

Initial value: y(1)=6

Let $y'=\dfrac{dy}{dx}$

$\dfrac{dy}{dx}=\sqrt{4y+25}$

Variable separable

$\dfrac{dy}{\sqrt{4y+25}}=dx$

Integrate both sides

$\int \dfrac{dy}{\sqrt{4y+25}}=\int dx$

$\sqrt{4y+25}=2x+C$

Initial condition, y(1)=6

$\sqrt{4\cdot 6+25}=2\cdot 1+C$

$C=5$

Put C into equation

Solution:

$\sqrt{4y+25}=2x+5$

$4y+25=(2x+5)^2$

$y(x)=\dfrac{1}{4}(2x+5)^2-\dfrac{25}{4}$

$y(x)=x^2+5x$

Hence, The solution is $y(x)=\dfrac{1}{4}(2x+5)^2-\dfrac{25}{4}$ or $y(x)=x^2+5x$

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3 years ago

The surface area of the square pyramid is 16 square inches. Find the value of x.

cluponka [151]

Answer:

x=6 2/5

Step-by-step explanation:

I don't know how to explain other than doing the math of (x*5)/2=16

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3 years ago

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When a number is decreased by 8 percent the result is 79 what is the original number to the nearest tenth

trapecia [35]

Good morning good luck

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3 years ago

sweet potatoes are on sale for 0.79 per pound including tax. if stuart has $5, does he have enough money for 8 pounds of sweet p

guapka [62]

Answer:

No.

Step-by-step explanation:

Sweet Potatoes= 0.79 Per pound including tax.

So 0.79 · 8 = $6.32

And Stuart only have $5.00.

Therefore He don't have enough money for 8 pound of sweet potatoes.

5 0

2 years ago