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Tcecarenko [31]
2 years ago
9

Helppp i literally dont understand this at all

Mathematics
1 answer:
Ksju [112]2 years ago
3 0

Answer:

D. Substitution

Step-by-step explanation:

I don't know how to explain it other than that they substituted the 50° angle into the original equation.

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Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se
Anestetic [448]
(2/5)(x-1)<(3/5)(x+1)  perform indicated multiplications

(2x-2)/5<(3x+3)/5  multiply both sides by 5

2x-2<3x+3  add 2 to both sides

2x<3x+5  subtract 3x from both sides

-x<5  divide both sides by -1  (remember to reverse direction of inequality sign when multiplying/dividing by a negative value)

x>-5
6 0
3 years ago
9x^2 + 6x -1 =0 (Round to the nearest hundredth)
hodyreva [135]
9x^2 + 6x = 1
Factor out 3x
3x (3x +2)=1
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7 0
3 years ago
Which expression is equivalent to 1.5x + 12 + 4x?
cestrela7 [59]
An equation that is equivalent to that equation is 5.5x + 12.
8 0
3 years ago
Read 2 more answers
How are these triangles congruent?
ICE Princess25 [194]

Answer:

\triangle PTY \cong \triangle PSQ by ASA

Step-by-step explanation:

In triangle PTU and triangle PSQ

\overline{PT} \cong \overline{PS}     [Side]             [Given]

\angle PTU \cong \angle PSQ          [Angle]

Vertical angles are those angles which are opposite to each other.

\angle TPU \cong \angle SPQ        {Angle]

ASA(Angle-Side-Angle) postulates states if two angles and one included  side of one triangle are congruent to two angles and the included side of the other triangle, then these triangle are congruent.

by ASA postulates;

\triangle PTY \cong \triangle PSQ


5 0
4 years ago
Answer fast plzzzzzzzz
Paul [167]

Answer:

0.5

Step-by-step explanation:

It is less than 0.6.

8 0
3 years ago
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