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3 years ago

I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT

Mathematics

1 answer:

Alla [95]3 years ago

8 0

5
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1 hope this helps now mark me brainliest

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What's 14/63 in simplest form

serious [3.7K]

You would cancel the common factors in the numerator and denominator.

Exact Form:
2/9

Decimal Form:
0.222222222.....

8 0

3 years ago

Steve can run 3.5 miles in 30 minutes. If Steve increases his rate by 1/2 mile per hour, how far will he run in 2 hours?

Sati [7]

Answer:

15 miles

Step-by-step explanation:

Steve runs 3.5 miles in 30 minutes (0.5 hours). So his speed is:

r = 3.5 mi / 0.5 h

r = 7 mi/h

If his rate increases to 7.5 mi/h, the distance he runs in 2 hours is:

d = 7.5 mi/h × 2 h

d = 15 mi

7 0

3 years ago

Read 2 more answers

the distance from Gracie's school to the corner market is 47 yds the distance to die what station is 12 times as far how far is

fenix001 [56]

It is 21 miles because 9+10 =21

4 0

3 years ago

See attached image. Thanks!

madam [21]

Answer:

Step-by-step explanation:

n(Band and Choir only)

= 25 - 11 - 7 - 3 = 4

n(Math and Band only)

= 7

n(Math and Choir only)

= 57 - (25 + 17 + 9)

= 6

Exactly 2:

4 + 7 + 6

= 17

6 0

4 years ago

Solve one of the following two non-homogeneous differential equations using whatever technique your prefer. Put an "X" through t

noname [10]

Answer:

a. $y(x)=c_1e^{2x}+c-2xe^{2x}+x^3e^{2x}$

b $y(x)=c_1cos 3x+c_2 sin 3x-5 cos x+ 7sin x$

Step-by-step explanation:

1. $y''-4y'+4y=6x e^{2x}$

Auxillary equation

$D^2-4D+ 4=0$

$(D-2)(D-2)=0$

D=2,2

Then complementary solution = $C_1e^{2x}+C_2xe^{2x}$

Particular solution $=\frac{6 xe^{2x}}{(D-2)^2}$

D is replace by D+2 then we get

P.I= $\frac{6xe^{2x}}{0}$

P.I= $\frac{e^{ax}}{D+a} \cdot .V$

where V is a function of x

P.I= $\frac}x^3e^{2x}$

By integrating two times

Hence, the general solution

$y(x)=c_1e^{2x}+c-2xe^{2x}+x^3e^{2x}$

b.y''+9y=5 cos x-7 sin x

Auxillary equation

$D^2+9=0$

D= $\pm 3i$

$C.F=c_1 cos 3x+ c_2sin 3x$

P.I= $\frac{5 cos x-7 sin x}{D^2+9}$

P.I= $\frac{sin ax}{D^2+bD +C}$

Then D square is replace by -a square

$D^2$ is replace by - then we get

P.I=-5 cos x+7 sin x

The general solution

$y(x)=c_1cos 3x+c_2 sin 3x-5 cos x+ 7sin x$

4 0

3 years ago