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Dafna11 [192]
3 years ago
14

Use the dot product to determine whether the vectors are parallel, orthogonal, or neither. v = (sqrt)2j, w = 4i

Mathematics
2 answers:
Paul [167]3 years ago
5 0
<span>Heres the equation

v=0i+<span>2√</span>j</span>
<span><span>w=4i+0j</span></span>
svetoff [14.1K]3 years ago
4 0
Hello,

As \vec{i}*\vec{j}=0\\&#10;\vec{v}*\vec{w}=\sqrt{2}*\vec{i}*4*\vec{j}=4*\sqrt{2}*0=0
Vectors are orthogonal.
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(13x+14)(6x-5)=0<br> Solve by factoring
NeTakaya
(13x+14)(6x-5)=0
78x²-65x+84x-70=0
78x²+19x-70=0
It was equation.
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Factoring⇒  a×c=78×(-70)=-5460
84×(-65)=-5460
84+(-65)=19  which is b
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78x²+84x-65x-70=0
6x(13x+14)-5(13x+14)=0
(13x+14)(6x-5)=0
13x+14=0             6x-5=0
13x=-14                6x=5
 x=-14/13                x=5/6
         Two solution X=-14/13;5/6
5 0
3 years ago
What is the term for the likelihood that a correlation exists in a population, based on knowledge of the actual value of r in a
zvonat [6]

Answer:

Statistical significance

Step-by-step explanation:

The Statistical significance provides a link between the  dependent and the independent variable. It provides us the indication that the change in the independent variable is correleated with the shift caused in the dependent variable.

6 0
3 years ago
Which number sentence is true?
Artemon [7]

Answer:

yes

Step-by-step explanation:

but really nice to the world I'm happy for you because you is so buetiful

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2 years ago
What congruence rule does the triangle follow? Please write the congruence statement triangle EFH is congruent to ________?
Yuliya22 [10]

We can see here two triangles, and we can notice the following:

1. Since H is the midpoint of the segment EG, we can say that EH and HG are congruent segments.

2. Since these two triangles, namely, EFH and GFH share the same segment (HF), this side is also congruent to these two triangles.

3. Since EH is congruent to HG, and FH is congruent to itself, then EF is congruent to GF.

4. Angle E is congruent to angle G.

Therefore, we can say that:

Since we have that:

a. EF is congruent to GF

b. EH is congruent to GH

c. Angle E is congruent to angle G

We can conclude that the congruence rule, in this case, is SAS (Side-Angle-Side), because<em> if two sides and the included angle are congruent to the corresponding parts of the other triangle, the triangles are congruent.</em>

<em>We also see that the three sides are congruent (and in this case, we can also conclude that the triangles are congruent by the rule SSS (side-side-side).</em>

Likewise, we can also conclude that the triangle EFH is congruent to triangle GFH.

5 0
1 year ago
What is the sum of the following equatiioin? 10x+20y+5x=?
Vsevolod [243]

Answer:

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Step-by-step explanation:

First, we need to combine like terms,

10x + 20y + 5x

15x + 20y

Since x and y are different variables, we cannot combine them, meaning that the answer is,

15x + 20y

4 0
2 years ago
Read 2 more answers
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