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3 years ago

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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3 years ago

73 POINTS! PLEASE HELP

zzz [600]

Answer:

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3 years ago

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 $4\sqrt{17}$ .

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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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2 years ago

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I need help with a geometry question

Natali [406]

Lines a and b are parallel, and lines c and d are parallel

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3 years ago

Evaluate expression 4+5.23 + 3 =​

Evaluate expression 4+5.23 + 3 =