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sammy [17]
2 years ago
6

Factorise 5x^2-18x+16=0

Mathematics
1 answer:
Lunna [17]2 years ago
5 0

Answer:

(5x-8)(x-2)

Step-by-step explanation:

or either use quadratic formula

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Dy/dx= y^4 and y(2)= -1. Y(-1)=
cupoosta [38]

It looks like you're asked to find the value of y(-1) given its implicit derivative,

\dfrac{dy}{dx} = y^4

and with initial condition y(2) = -1.


The differential equation is separable:

\dfrac{dy}{y^4} = dx

Integrate both sides:

\displaystyle \int \frac{dy}{y^4} = \int dx

-\dfrac1{3y^3} = x + C

Solve for y :

\dfrac1{3y^3} = -x + C

3y^3 = \dfrac1{-x+C} = -\dfrac1{x + C}

y^3 = -\dfrac1{3x+C}

y = -\dfrac1{\sqrt[3]{3x+C}}

Use the initial condition to solve for C :

y(2) = -1 \implies -1 = -\dfrac1{\sqrt[3]{3\times2+C}} \implies C = -5

Then the particular solution to the differential equation is

y(x) = -\dfrac1{\sqrt[3]{3x-5}}

and so

y(-1) = -\dfrac1{\sqrt[3]{3\times(-1)-5}} = \boxed{\dfrac12}

6 0
2 years ago
Evaluate the expression for h=-54.<br><br> |h| + 30=
insens350 [35]

1. Observe problem

2. Plug in values

|-54|+30=

54+30=

84

3 0
2 years ago
What is the value of the 5 in the number 14.5?
WINSTONCH [101]
The alue of 5 is the tenths place.
3 0
3 years ago
a plane is flying at a speed of 200 miles per hour. the pilot plans on flying at this speed for the next 225 miles, plus or minu
harina [27]

The minimum and maximum number of hours the plane will travel at that speed are; at least 0.875 hours and at most 1.375 hours

<h3>How to Solve Absolute Value Inequality?</h3>

We are given that the speed of the plane is 200 miles per hour.

Now, formula for time taken is;

Time = Distance/Speed

If the speed is 225 ± 50 miles, then it means that;

Maximum distance = 275 miles

Minimum distance = 175 miles

Thus, we can say that;

Minimum number of hours = 275/200 = 1.375 hours

Maximum number of hours = 175/200 = 0.875 hours

Read more about Absolute Value Inequality at; brainly.com/question/13282457

#SPJ1

4 0
2 years ago
10 1/8 - 3 5/6=.......?
larisa [96]

Answer:

6 7/24

Step-by-step explanation:

4 0
3 years ago
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