Mathematics, 03.07.2019 23:00 245cat

Plz me i've been stuck on this forever =/

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Answer from: iwannasleep

$\text{B}$ $\overleftrightarrow{\text{MN}}$ $\overrightarrow{\text{BE}}$ $\overrightarrow{\text{BF}}$ $\text{G, B, N}$

Step-by-step explanation:

Lines AB and EF intersect at point B.Line MN is the line of intersection of planes K and L.Any ray from point B will have a name that begins with B. Available choices are BE, BF, BG, but ray BG does not have an opposite ray shown in the drawing. Thus your answer needs to be BE and BF.Planes are named generally with a single letter (K) or by naming three points in the plane. Points ABGHMN are all in plane K, so naming any three (except ABG or MNG, which are all on the same line) will define the plane. The available choices in your list are G, B, N.

Answer from: Quest

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

when multiplying or dividing by a negative on both sides you have to flip the inequality sign. this rule only applies to multiplying or dividing by a negative number in inequality equations. this rule is really important.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

5c+2< 27 i really do not understand this.

Answer from: Quest

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get $6x^{2} -3x$

and solving the given expression :

3x(2x-1)

$6x^{2} -3x$

since solving the expression using tiles and solving the expression algebraically we get the same answer

thus we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

Which is true regarding armando’s use of algebra tiles? he used the algebra tiles correctly. he did

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Plz me i've been stuck on this forever =/...