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4 years ago

I NEED HELP ASAP!! 4(5)(-2)=?

1 answer:

5 0

So, in an easier way to say it
4 × 5 × -2

You would start by doing
4 × 5 = 20
Then,
20 × -2 = 40

So your answer is -40

Hope I helped ♥

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As an estimation we are told £3 is €4.<br> Convert €52 to pounds.

kati45 [8]

Answer:

£69.33

Step-by-step explanation:

4/3=1.33333333333 so that 52*1.33333333333 would convert 52 euros into 52 pounds

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4 years ago

PLEASE HELP SUPER URGENT

Sveta_85 [38]

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3 years ago

If the cost of a bat and a baseball combined is $1.10 and the bat costs 41.00 more than the ball, how much is the ball?

shepuryov [24]

Step-by-step explanation:

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3 years ago

(15 pts) 4. Find the solution of the following initial value problem: y"-10y'+25y = 0 with y(0) = 3 and y'(0) = 13

jolli1 [7]

Answer:

$y(x)=3e^{5x}-2xe^{5x}$

Step-by-step explanation:

The given differential equation is $y''-10y'+25y=0$

The characteristics equation is given by

$r^2-10r+25=0$

Finding the values of r

$r^2-5r-5r+25=0\\\\r(r-5)-5(r-5)=0\\\\(r-5)(r-5)=0\\\\r_{1,2}=5$

We got a repeated roots. Hence, the solution of the differential equation is given by

$y(x)=c_1e^{5x}+c_2xe^{5x}...(i)$

On differentiating, we get

$y'(x)=5c_1e^{5x}+5c_2xe^{5x}+c_2e^{5x}...(ii)$

Apply the initial condition y (0)= 3 in equation (i)

$3=c_1e^{0}+0\\\\c_1=3$

Now, apply the initial condition y' (0)= 13 in equation (ii)

$13=5(3)e^{0}+0+c_2e^{0}\\\\13=15+c_2\\\\c_2=-2$

Therefore, the solution of the differential equation is

$y(x)=3e^{5x}-2xe^{5x}$

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3 years ago

Complete the statement 36x^3a+45xa^2=9xa

Lorico [155]

<span>36x³a + 45xa² =</span>9xa(4x²+5a)

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3 years ago