3 years ago

Help please help needed

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

6 0

THe answer to your question is 28

You might be interested in

Can someone please help me on the last two empty boxes :( ??!!

wolverine [178]

Answer:

trinomial
binomial

Step-by-step explanation:

mono-, bi-, tri- are prefixes meaning 1, 2, and 3, respectively. A 3-term polynomial is a trinomial; a 2-term polynomial is a binomial.

5 0

3 years ago

The product of 4 and a number plus 17 is -5<br>What's the answer I'm to dumb for this

baherus [9]

Answer:

The answer I got was 5.5

Step-by-step explanation:

4x+17=-5

4x-17=-5-17

4x=-22

4x/4=22/4

x=5.5

5 0

3 years ago

Consider the two vectors A with arrow = 3 î − ĵ and B with arrow = − î − 2 ĵ. (a) Calculate A with arrow + B with arrow 2 Correc

Verdich [7]

Answer:

Let $\vec{A}=3\hat{i}-\hat{j}$ and $\vec{B}=-\hat{i}-2\hat{j}$ .

$\vec{A}+\vec{B}=(3\hat{i}-\hat{j})+(-\hat{i}-2\hat{j})=2\hat{i}-3\hat{j}$

$\vec{A}-\vec{B}=(3\hat{i}-\hat{j})-(-\hat{i}-2\hat{j})=4\hat{i}+\hat{j}$

c) Now we calculate the direction of $\vec{A}+\vec{B}$ and $\vec{A}-\vec{B}$

We calculate the direction of $\vec{A}+\vec{B}$ like this:

$\theta=tan^{-1}(\frac{-3}{2})=-56,3^{\circ}$ . Since, $270\leq\theta\leq360$ , then the direction of $\vec{A}+\vec{B}$ is $360^{\circ}-\theta=360^{\circ}-56.3^{\circ}=303.7^{\circ}$ .