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ivann1987 [24]
3 years ago
15

Help for brainliest also 30 points

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

love history [14]3 years ago
4 0

Answer:

...

Step-by-step explanation:

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The median of the data set is 81. what number is missing? 82, 87, __, 77, 70, 80, 88
11111nata11111 [884]
The number that is missing is 83
8 0
3 years ago
Solve the given differential equation by using an appropriate substitution. The DE is a Bernoulli equation.
Mama L [17]

Multiplying both sides by y^2 gives

xy^2\dfrac{\mathrm dy}{\mathrm dx}+y^3=1

so that substituting v=y^3 and hence \frac{\mathrm dv}{\mathrm dv}=3y^2\frac{\mathrm dy}{\mathrm dx} gives the linear ODE,

\dfrac x3\dfrac{\mathrm dv}{\mathrm dx}+v=1

Now multiply both sides by 3x^2 to get

x^3\dfrac{\mathrm dv}{\mathrm dx}+3x^2v=3x^2

so that the left side condenses into the derivative of a product.

\dfrac{\mathrm d}{\mathrm dx}[x^3v]=3x^2

Integrate both sides, then solve for v, then for y:

x^3v=\displaystyle\int3x^2\,\mathrm dx

x^3v=x^3+C

v=1+\dfrac C{x^3}

y^3=1+\dfrac C{x^3}

\boxed{y=\sqrt[3]{1+\dfrac C{x^3}}}

6 0
3 years ago
Can you please help me with this? <br> 14 + 5(x + 3) - 7x
TEA [102]
Well first you have to do distributive property with the parenthesis, multiply 5 times x and 5 times 3 to get 5x and 15 now you have 14+5x+15-7x, now add common like terms(these are terms taht have the same number variable or both) so your common numbers will be 14 and 15, and 5x and -7x now add or subtract them to get -2x+29 now you have to set x by itself so set this binomial equal to 0 to get -2x+29=0 subtract the 29 from both sides and get -2x=-29 now divide 2 by both sides to get x=29/2

Hope this helps
4 0
3 years ago
Read 2 more answers
The front face of Josh’s roof is shaped like a triangle. It has a base of 100 feet and a height of 15 feet. What is the area of
sweet-ann [11.9K]

Answer:

750 square feet

Step-by-step explanation:

The area of a triangle is 1/2bh

Now, we can plug our values in.

1/2(100)(15)

Simplify

50(15)

750

7 0
3 years ago
A pizza with a 10-inch diameter costs $6.99 and is cut into 6 slices, what is the cost per slice? ​
Klio2033 [76]

Answer:

$1.165

Step-by-step explanation:

$6.99/6 slices = 1.165

3 0
3 years ago
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