In the triangle below, determine the measure of angle a

m∠A ≈ 65°

Step-by-step explanation:

We use the inverse trig ratio tan⁻¹ to solve this problem.

m∠A = tan⁻¹() --- plug in opposite and adjacent sides of A into tan⁻¹

m∠A ≈ 65° --- solve tan⁻¹() with calculator

it has 4

step-by-step explanation:

les

elee

fg

elle

fetish

ser

el

le

f

lent

clee hd

lg

ad

be

hu

te

see

te

ele

cele

her

t

errel

c

s​

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

and solving the given expression :

3x(2x-1)

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".