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3 years ago

Anyone wanna chat?? =>

Mathematics

2 answers:

posledela3 years ago

8 0

Answer:

sure

Step-by-step explanation:

torisob [31]3 years ago

3 0

Answer:

Sure wassup?

Step-by-step explanation:

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Round each number to the place of the underlined digit the 4 is underlined in 324,650

dolphi86 [110]

Answer:325,000

Step-by-step explanation:

4 gets rounded up to 5 because of the 6 next to it.

7 0

3 years ago

Compute a · (b ✕ c), where a = i − 3j + k, b = 4i + j + k and c = 9i − j + 3k.

grandymaker [24]

$\mathbf a=\mathbf i-3\,\mathbf j+\mathbf k$
$\mathbf b=4\,\mathbf i+\mathbf j+\mathbf k$
$\mathbf c=9\,\mathbf i-\mathbf j+3\,\mathbf k$

$\mathbf b\times\mathbf c=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\4&1&1\\9&-1&3\end{vmatrix}=4\,\mathbf i-3\,\mathbf j-13\,\mathbf k$

$\mathbf a\cdot(\mathbf b\times\mathbf c)=(\mathbf i-3\,\mathbf j+\mathbf k)\cdot(2\,\mathbf i-3\,\mathbf j-13\,\mathbf k)=4+(-3)^2-13=0$

6 0

3 years ago

What is the slope of the line represented by the equation y= 4/5x-3

guajiro [1.7K]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

Slope of a line is the co efficient of x in the given line.

$y = \frac{4}{5} x - 3 \\ y = mx + b$

6 0

3 years ago

Find the distance between -2 3/5 and -2 3/10 on a number line.<br>

alina1380 [7]

Answer: 3/10. -2 3/5 = -2 6/10. -2 6/10 - -2 3/10 = - 3/10. -3/10 = 3/10 away on a number line

7 0

2 years ago

How do you solve<br> 25n=70

alisha [4.7K]

You want to do to one side the same thing you do to the other side.

In order to get the n by itself you divide the 25n by 25. But in order to not change the answer you need to do the same to the 70.

$\frac{25n}{25} = \frac{70}{25}$

so n= $\frac{70}{25}$ which can be reduced to $\frac{14}{5}$

so n= $\frac{14}{5}$

5 0

3 years ago