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DerKrebs [107]
3 years ago
10

Evaluate expression 4+5.23 + 3 =​

Mathematics
1 answer:
zvonat [6]3 years ago
5 0

Answer:

12.23

Step-by-step explanation:

4+5.23 = 9.23

9.23 + 3 = 12.23

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-27=-3p+15-3p solve the equation and show your work
Gnesinka [82]
-27 = -3p + 15 - 3p

Combine like terms.
-3p -3p = (-3-3)p = -6p

-27 = -6p + 15

Subtract 15 from each side to get the variable term on its own.

-27 - 15 = -6p + 15 - 15

-42 = -6p

Divide each side by -6 to find p.

p = -42 ÷ -6 = 7
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Use the arc length formula to find the length of the curve y = 4x − 5, −1 ≤ x ≤ 3. Check your answer by noting that the curve is
Reptile [31]

Answer:

4\sqrt{17}

Step-by-step explanation:

Let's find the answer by using the arc length formula which is:

\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^{2} } } \, dx

First, let's find dy/dx which is:

y=4x-5

y'=4*(1)-0

y'=4, now let's use the formula:

\int\limits^3_{-1} {\sqrt{1+4^{2}} } \, dx=\sqrt{17} *(3-(-1))=4\sqrt{17}

Now, using the distance formula we have:

d=\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }

y(-1)=4*(-1)-5=-9 \\y(3)=4*(3)-5=7

So we have two points (-1, -9) and (3, 7) so:

d=\sqrt{(3-(-1))^{2} +(7-(-9))^{2} }=4\sqrt{17}

Notice both equations gave the same length 4\sqrt{17}.

5 0
3 years ago
Solve for W.<br> A=6W<br> help timed
Alina [70]
-6W=-A
6W=A
W=A/6 is the answer your looking for
Hope this helped!
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