Which of the following triangles is not an obtuse triangle?

HELLLLLLLLPPPPPP PLEASE ON THIS QUESTION

aleksandrvk [35]

Answer and Step-by-step explanation:

Every episode is 20 minutes. The points would be:

(40, 2)
(80, 4)
(120, 6)
(160, 8)

8 0

3 years ago

How do you solve x^2-3x-5=0

muminat

We could solve this by calculating the delta
You can see them in may photo

6 0

4 years ago

Find the directional derivative of the function at the given point in the direction of the vector v. f(x, y, z) = xe^y + ye^z +

LUCKY_DIMON [66]

Answer:

$D_{\vec{u}}f(0,0,0)=\frac{6}{\sqrt{54}}$

Step-by-step explanation:

We need to find the directional derivative of the function at the given point in the direction of the vector v.

$f(x, y, z)=xe^{y} + ye^{z} + ze^{x}$ ,point (0, 0, 0) and $v=$

By Theorem: If f is a differentiable function of x , y and z , then f has a directional derivative for any unit vector $\overrightarrow{v} =$ and

$D_{\overrightarrow{u}}f(x,y,z)=f_{x}(x,y,z)u_1+f_{y}(x,y,z)u_2+f_{z}(x,y,z)u_3$

where $\overrightarrow{u}=\frac{\overrightarrow{v}}{||v||}$

since, $v=$

then $\overrightarrow{u}=\frac{\overrightarrow{v}}{||v||}$

$\overrightarrow{u}=< \frac{6}{\sqrt{6^{2}+3^{2}+(-3)^{2}}},\frac{3}{\sqrt{6^{2}+3^{2}+(-3)^{2}}},\frac{-3}{\sqrt{6^{2}+3^{2}+(-3)^{2}}} >$

$\overrightarrow{u}=< \frac{6}{\sqrt{54}},\frac{3}{\sqrt{54}},\frac{-3}{\sqrt{54}} >$

The partial derivatives are

$f_{x}(x,y,z)=e^{y}+ze^{x}$

$f_{y}(x,y,z)=xe^{y}+e^{z}$

$f_{z}(x,y,z)=ye^{z}+e^{x}$

Then the directional derivative is

$D_{\vec{u}}f(x,y,z)=(e^{y}+ze^{x})(\frac{6}{\sqrt{54}})+(xe^{y}+e^{z})(\frac{3}{\sqrt{54}})+(ye^{z}+e^{x})(\frac{-3}{\sqrt{54}})$

so, directional derivative at point (0,0,0)

$D_{\vec{u}}f(0,0,0)=(e^{0}+0e^{0})(\frac{6}{\sqrt{54}})+(0e^{0}+e^{0})(\frac{3}{\sqrt{54}})+(0e^{0}+e^{0})(\frac{-3}{\sqrt{54}})$

$D_{\vec{u}}f(0,0,0)=\frac{6}{\sqrt{54}}+\frac{3}{\sqrt{54}}+\frac{-3}{\sqrt{54}}$

$D_{\vec{u}}f(0,0,0)=\frac{6+3-3}{\sqrt{54}}$

$D_{\vec{u}}f(0,0,0)=\frac{6}{\sqrt{54}}$

3 0

4 years ago

Mikey walked 1\3 of her journey travelled 4\9 of it by car and ran the rest. calculate the fraction of the journey Mikey ran.

GenaCL600 [577]

Answer:

7/9

Step-by-step explanation:

First Fractions need to be same so bottom number is 9

So to get 1/3 to nine we need to do 3x3 which equals 9

So we are with 3/9 and 4/9. Add top numbers and u get 7/9

8 0

3 years ago

Read 2 more answers

help plz last attempt on quiz i dont understand.An student is listening to songs that are on his phone. On his phone, he has 10

Elena-2011 [213]

write fractions for each type of song out of the total

10/45 country

15/45 pop

5/45 r&b

10/45 rap

5/45 techno

write these fractions in their simplest forms

2/9 country

1/3 pop

1/9 r&b

2/9 rap

1/9 techno

<em>the chances of the next song played on shuffle being pop is 15/45, or 1/3</em>

<em>(hope this helps! if it does, please give brainliest! thank you x)</em>

5 0

4 years ago

Read 2 more answers