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3 years ago

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What mistake did Fumio make? He did not distribute the 2 to both components of vector u. He added vectors v and w before distrib

uting the –3 to their components. He subtracted vector w from vector v. He did not use the associative property correctly when rearranging the signs.

1 answer:

chubhunter [2.5K]3 years ago

4 0

Answer: A

Step-by-step explanation:

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Can anyone help out with the first question so I can get an idea with the others?

Oksanka [162]

As you can see, the first number line is divided into tenths (0.1, 0.2, 0.3). So, put 8.152 in between 8.1 and 8.2.

Then, the ends of the next number line should be 8.1 at the start, and 8.2 at the end. You keep going smaller to find the exact spot. So, move 5 places inwards and place the 8.153, between 8.15 and 8.16.

Afterwards, the ends of the last number line should be 8.15 and 8.16. Now, it is divided into thousandths. So, find the third spot. Now, it should be 8.153 correctly labeled.

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4 years ago

What is the square root of 9

taurus [48]

The square root of 9 is 3

3 0

3 years ago

Read 2 more answers

Let z = ln(x 2 + y), x = ret . and y = ter . Use the Chain Rule to compute ∂z ∂r and ∂z ∂t at the point where (r, t) = (1, 2).\

Natali [406]

By the chain rule,

$\dfrac{\partial z}{\partial u}=\dfrac{\partial z}{\partial x}\dfrac{\partial x}{\partial u}+\dfrac{\partial z}{\partial y}\dfrac{\partial y}{\partial u}$

where $u\in\{r,t\}$ .

We have component partial derivatives

$\dfrac{\partial z}{\partial x}=\dfrac{2x}{x^2+y}=\dfrac{2re^t}{r^2e^{2t}+te^r}$

$\dfrac{\partial z}{\partial y}=\dfrac1{x^2+y}=\dfrac1{r^2e^{2t}+te^r}$

$\dfrac{\partial x}{\partial r}=e^t$

$\dfrac{\partial x}{\partial t}=re^t$

$\dfrac{\partial y}{\partial r}=te^r$

$\dfrac{\partial y}{\partial t}=e^r$

Putting the appropriate pieces together and setting $(r,t)=(1,2)$ , we get

$\dfrac{\partial z}{\partial r}(1,2)=\dfrac{2e^3+2}{e^3+2}$

$\dfrac{\partial z}{\partial t}(1,2)=\dfrac{2e^3+1}{e^3+2}$

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3 years ago

Find the slope and the

IgorC [24]

Answer:

the slope is 4 and the y-intercept is -5

Step-by-step explanation:

slope s what ever is next to the x

y-intercept is like the "normal" number.

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3 years ago

There were 6,954 cases filed with the Supreme Court. Of these only 82 were decided by the Supreme Court. What percentage was dec

Sveta_85 [38]

Answer:

Hey there!

The percentage is 82/6954, which you can find to be around 0.011, or 1.1%.

Hope this helps :)

6 0

4 years ago