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4 years ago

5x − 3y − z if x = −2, y = 2, and z = −3

2 answers:

7 0

Just plug in and solve
5x − 3y − z → 5(-2) − 3(2) − (-3)

5(-2) − 3(2) − (-3) → -10 - 6 +3

-10 - 6 +3 → -16 + 3

-16 + 3 = -13

answer is -13

Dennis_Churaev [7]4 years ago

6 0

The answer is -13. Hope I helped ;)

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Help plz ?????????????

Lyrx [107]

Answer:

3443

———— = C. 202

Step-by-step explanation:

Step 1 :

3443

Simplify ————

Final result :

3443

———— = 202.52941

Processing ends successfully

plz mark em as brainliest :)

8 0

3 years ago

Question 1: Use the image and your knowledge of the isosceles triangle to find the value of x

pochemuha

Answer:

35 degrees

Step-by-step explanation:

since both sides are equal, so are the angles involved.

3 0

3 years ago

Find the length of the curve. R(t) = cos(8t) i + sin(8t) j + 8 ln cos t k, 0 ≤ t ≤ π/4

arsen [322]

we are given

$R(t)=cos(8t)i+sin(8t)j+8ln(cos(t))k$

now, we can find x , y and z components

$x=cos(8t),y=sin(8t),z=8ln(cos(t))$

Arc length calculation:

we can use formula

$L=\int\limits^a_b {\sqrt{(x')^2+(y')^2+(z')^2} } \, dt$

$x'=-8sin(8t),y=8cos(8t),z=-8tan(t)$

now, we can plug these values

$L=\int _0^{\frac{\pi }{4}}\sqrt{(-8sin(8t))^2+(8cos(8t))^2+(-8tan(t))^2} dt$

now, we can simplify it

$L=\int _0^{\frac{\pi }{4}}\sqrt{64+64tan^2(t)} dt$

$L=\int _0^{\frac{\pi }{4}}8\sqrt{1+tan^2(t)} dt$

$L=\int _0^{\frac{\pi }{4}}8\sqrt{sec^2(t)} dt$

$L=\int _0^{\frac{\pi }{4}}8sec(t) dt$

now, we can solve integral

$\int \:8\sec \left(t\right)dt$

$=8\ln \left|\tan \left(t\right)+\sec \left(t\right)\right|$

now, we can plug bounds

and we get

$=8\ln \left(\sqrt{2}+1\right)-0$

so,

$L=8\ln \left(1+\sqrt{2}\right)$ ..............Answer

5 0

3 years ago

daniel kicks a soccer ball and the trajectory is modeled by f(t) = -16t^ +32t. what would be the value of f(1)

PtichkaEL [24]

Answer:

f(1)=16

Step-by-step explanation:

f(t)=-16t+32t

f(1)=-16(1)+32(1)

f(1)=-16+32

f(1)=16

6 0

3 years ago

Read 2 more answers

Read the paragraph carefully. Look at the list of animals below the paragraph. Decide whether each

rodikova [14]

Answer: 34

Step-by-step explanation:

6 0

4 years ago