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zhannawk [14.2K]
3 years ago
10

Find the measure of the exterior angle 1. with one angle is 50 degrees and 28 degrees​

Mathematics
1 answer:
OLga [1]3 years ago
3 0

Answer:

D. 78°

Step-by-step explanation:

50°+28°= 78°

_______

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Find f(-2) for f(x) = 3.2.<br> O A. 2/1<br> OB.<br> 36<br> O C. -36<br> OD. -12<br> 3/4
valina [46]

Answer:

3/4 (A)

Step-by-step explanation:

replace x with -2 in the function

3 · 2^-2  = 3 · 0.25

3 · 0.25 = 0.75

0.75 = 3/4

3 0
2 years ago
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The interior in a triangle have the following measures: (x+34), (6x+4),and (4x+10). Find the measure of the smallest angle in th
guapka [62]
(6x+4) hope this helped
please leave a thank you
3 0
3 years ago
Suppose that surface σ is parameterized by r(u,v)=⟨ucos(3v),usin(3v),v⟩, 0≤u≤7 and 0≤v≤2π3 and f(x,y,z)=x2+y2+z2. Set up the sur
Bad White [126]

Looks like you have most of the details already, but you're missing one crucial piece.

\sigma is parameterized by

\vec r(u,v)=\langle u\cos3v,u\sin3v,v\rangle

for 0\le u\le7 and 0\le v\le\frac{2\pi}3, and a normal vector to this surface is

\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}=\left\langle\sin3v,-\cos3v,3u\right\rangle

with norm

\left\|\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}\right\|=\sqrt{\sin^23v+(-\cos3v)^2+(3u)^2}=\sqrt{9u^2+1}

So the integral of f(x,y,z)=x^2+y^2+z^2 is

\displaystyle\iint_\sigma f(x,y,z)\,\mathrm dA=\boxed{\int_0^{2\pi/3}\int_0^7(u^2+v^2)\sqrt{9u^2+1}\,\mathrm du\,\mathrm dv}

6 0
3 years ago
Find the midpoint of the segment with given endpoints k(1.7,-7.9) and l(8.5,-8.2)
zhenek [66]
I think it would be 5.2
6 0
3 years ago
The episodes of a TV program are each 40 minutes long.
Hatshy [7]

Answer:

160

Step-by-step explanation:

40*4=160

160 min is also equal to 2 hours and 20 min

╦────────────────────────────╦

│Hope this helped  _____________________│    

│~Derelis ____________________________ │

╨___________________________________╨                  

4 0
3 years ago
Read 2 more answers
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