3 years ago

Find the value of 3x for x=3

Mathematics

2 answers:

rosijanka [135]3 years ago

8 0

Answer:

Step-by-step explanation:

X MULTIPLIED BY 3 EQUALS 9 SINCE X=3

MariettaO [177]3 years ago

3 0

Answer:

Step-by-step explanation:

x=3

3*3= 9

so value of 3x = 9

You might be interested in

Please help and and explain

sineoko [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Noah uses 1/2 of a cup of vinegar in his salad dressing recipe. How much vinegar would Noah use to make 3 1/6 recipes? Write you

saul85 [17]

Answer:

1 7/12 cups

Step-by-step explanation:

1/2 x 3 1/6 = 1/2 x 19/6 = 19/12 or 1 7/12

6 0

3 years ago

Read 2 more answers

An ice cream shop chose 25 customers at random and asked each to name a

ale4655 [162]

Answer:

Step-by-step explanation:

Its 6 or 4, but leaning toward 6

6 0

3 years ago

Consider two vectors A and B A=14i and B= -4i+8j

DaniilM [7]

Assuming $\mathbf a,\mathbf b\in\mathbb R^3$ , you have

$\mathbf a\cdot\mathbf b=(14)(-4)+(0)(8)=-56$

so

$((\mathbf a\cdot\mathbf b)\,\mathbf i)\cdot\mathbf a=(-56\,\mathbf i)\cdot(14\,\mathbf i)=(-56)(14)=-784$

Next,

$\mathbf a+\mathbf b=(14\,\mathbf i)+(-4\,\mathbf i+8\,\mathbf j)=10\,\mathbf i+8\,\mathbf j$

Then

$(\mathbf a+\mathbf b)\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\10&8&0\\-4&8&0\end{vmatrix}=112\,\mathbf k$

$((\mathbf a+\mathbf b)\times\mathbf b)\times\mathbf k=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\0&0&112\\0&0&1\end{vmatrix}=\mathbf 0$

4 0

4 years ago

Danny made a mistake in the following problem.

mixas84 [53]

Line 3
since he added which is against the order of opreation rule he was supposed to multiply first then add
again what he was supposed to do is
Line 2:21+5+6(2)
Line 3:21+5+12

7 0

3 years ago