All categories

3 years ago

Simplify Negative three and one-half minus negative twelve and one-fourth

Mathematics

1 answer:

Mila [183]3 years ago

4 0

$(-3\frac{1}{2}) - (-12 \frac{1}{4} ) = 8\frac{3}{4}$

that is your answer

You might be interested in

Q and R are independent events. if P(Q)= 1/4 and P (R)= 1/5, find P(Q and R)

Setler79 [48]

Answer:

1/4 * 1/5 = 1/20

3 0

3 years ago

6)528<br> What is the answer????

Cloud [144]

Answer:

3168

Step-by-step explanation:

you mean (6)528

so it is 6 times 528=3168

4 0

3 years ago

Read 2 more answers

What number would you have to add to both sides to complete the square?

aleksandr82 [10.1K]

X^2 + 12x = -6

x^2 + 12 x + 6^2 = -6 + 6^2

(x + 6)^2 = - 6 + 36

(x +6)^2 = 30

In the first step I had to add 6^2 = 36. The answer is option B. 36.

5 0

3 years ago

Read 2 more answers

Anyone know wat 792 divided by 5 is?

tigry1 [53]

Answer:

158.4 i think

Step-by-step explanation:

4 0

3 years ago

Find the directional derivative of f(x,y,z)=2z2x+y3f(x,y,z)=2z2x+y3 at the point (−1,4,3)(−1,4,3) in the direction of the vector

Feliz [49]

$f(x,y,z)=2z^2x+y^3$

$f$ has gradient

$\nabla f(x,y,z)=2z^2\,\vec\imath+3y^2\,\vec\jmath+4xz\,\vec k$

which at the point (-1, 4, 3) has a value of

$\nabla f(-1,4,3)=18\,\vec\imath+48\,\vec\jmath-12\,\vec k$

I'm not sure what the given direction vector is supposed to be, but my best guess is that it's intended to say $\vec u=15\,\vec\imath+25\,\vec\jmath$ , in which case we have

$\|\vec u\|=\sqrt{15^2+25^2}=5\sqrt{34}$

Then the derivative of $f$ at (-1, 4, 3) in the direction of $\vec u$ is

$D_{\vec u}f(-1,4,3)=\nabla f(-1,4,3)\cdot\dfrac{\vec u}{\|\vec u\|}=\boxed{\dfrac{294}{\sqrt{34}}}$

4 0

3 years ago