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2 years ago

Factor 64r^2 −9s^2 ANSWER ASAP I WILL GIVE BRAINLEST .

Mathematics

1 answer:

GarryVolchara [31]2 years ago

3 0

(8r+3s)(8r-3s) dont have working but noticed that it is the difference of two squares

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White Kittens

tester [92]

Answer:

im pretty sure its 5:10

there are 5 male cats and 10 female cats

Step-by-step explanation:

7 0

3 years ago

3x-4y= 3x−4y= \,\,9 9 -5x+4y= −5x+4y= \,\,-23 −23

Marta_Voda [28]

Answer: (7,3)

Step-by-step explanation:

[Please check]: I decoded the equations as follows:

3x-4y=9 and −5x+4y=-23

We can solve this by either of two methods: Algebra and graphing.

Algebra:

Add the two equations:

3x-4y=9

−5x+4y=-23

-2x = -14

x = 7

Use x=7 to solve for y:

3x-4y=9

3(7)-4y=9

21 -4y = 9

-4y = -12

y = 3

----

The solution is (7,3)

======

Graphing:

See the attached graph. The lines intersect at (7,3)

7 0

3 years ago

I will give brainliest for correct answer !

Vesna [10]

Answer:

Hey! It's me again!

7 0

3 years ago

Read 2 more answers

Simplify <img src="https://tex.z-dn.net/?f=4%28y%2B11%292-3y%5E2" id="TexFormula1" title="4(y+11)2-3y^2" alt="4(y+11)2-3y^2" ali

Vika [28.1K]

Answer:

$y^2+88y+484$

Step-by-step explanation:

$4(y+11)^2-3y^2= \\\\4(y^2+22y+121)-3y^2= \\\\4y^2-3y^2+88y+484= \\\\y^2+88y+484$

Hope this helps!

6 0

3 years ago

Consider the following.x = t − 2 sin(t), y = 1 − 2 cos(t), 0 ≤ t ≤ 8πSet up an integral that represents the length of the curve.

sweet [91]

The length of the parametric curve (call it C ) is given by

$\displaystyle\int_C\mathrm ds=\int_0^{8\pi}\sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2}\,\mathrm dt$

We have

$x=t-2\sin t\implies\dfrac{\mathrm dx}{\mathrm dt}=1-2\cos t$

$y=1-2\cos t\implies\dfrac{\mathrm dy}{\mathrm dt}=2\sin t$

Now,

$\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2=5-4\cos t$

so that the arc length integral reduces to

$\displaystyle\int_0^{8\pi}\sqrt{5-4\cos t}\,\mathrm dt$

which has an approximate value of 53.4596.

8 0

3 years ago