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Dafna11 [192]
3 years ago
12

Please answer this now in 2 minutes

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
7 0

Answer:

(1, 2)

Step-by-step explanation:

x2-x1/2, y2-y1/2

Plug in the values, and you should get (1, 2)

anzhelika [568]3 years ago
5 0

Answer:

(1,2)

Step-by-step explanation:

To find the midpoint, average the x coordinates and the y coordinates

x = (x1+x2)/2   and y = (y1+y2)/2

x = (5+-3)/2 = 2/2 =1

y = (-2+6)/2 = 4/2 = 2

The midpoint is (1,2)

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A computer company makes a rectangular screen with a diagonal of 20 inches. The width of the screen is 4 inches less than its le
LenaWriter [7]

<span>  x^2 +(x-4)^2 =20^2</span>

<span>  x^2 +(x-4)^2 =400</span>

x^2 +(x-4)^2 -400=0

factor:

2x^2-8x-384=0

Factor the 2 out of 2X^2

2(x-16) (x+12) =0

<span> Divide both sides by 2</span>

(x-16) (x+12) =0

X=16 , x=-12

<span> Number cannot be negative so x=16</span>


5 0
3 years ago
Read 2 more answers
If
Leno4ka [110]

Answer:

\frac{s^2-25}{(s^2+25)^2}

Step-by-step explanation:

Let's use the definition of the Laplace transform and the identity given:\mathcal{L}[t \cos 5t]=(-1)F'(s) with F(s)=\mathcal{L}[\cos 5t].

Now, F(s)=\int_0 ^{+ \infty}e^{-st}\cos(5t) dt. Using integration by parts with u=e^(-st) and dv=cos(5t), we obtain that F(s)=\frac{1}{5}\sin(5t)e^{-st} |_{0}^{+\infty}+\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt=\int_0 ^{+ \infty}e^{-st}\sin(5t) dt.

Using integration by parts again with u=e^(-st) and dv=sin(5t), we obtain that

F(s)=\frac{s}{5}(\frac{-1}{5}\cos(5t)e^{-st} |_{0}^{+\infty}-\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}(\frac{1}{5}-\frac{s}{5}\int_0^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}-\frac{s^2}{25}F(s).

Solving for F(s) on the last equation, F(s)=\frac{s}{s^2+25}, then the Laplace transform we were searching is -F'(s)=\frac{s^2-25}{(s^2+25)^2}

3 0
3 years ago
I have no clue what to do... please help
strojnjashka [21]

Answer:

Multiply the base by the exponent

Step-by-step explanation:

7 0
3 years ago
X2 + 4x - 21 = 0 quadratic formula
Elena-2011 [213]

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

x =  \frac{7}{2}

x = 3 \frac{1}{2}  \ x = 3.5

6 0
3 years ago
What is 9/12 as a decimal
UNO [17]

Answer:

.75

Step-by-step explanation:

u just do 9÷12 to find a decimal

8 0
3 years ago
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