1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
love history [14]
2 years ago
8

Factor the trinomial: 2x^2+13x+21

Mathematics
1 answer:
tankabanditka [31]2 years ago
6 0

Answer:

(2x + 7) \times (x + 3)

Step-by-step explanation:

{2x}^{2}  + 13x + 21

{2x}^{2}  + 7x + 6x + 21

x \times (2x + 7) + 3(2x + 7)

= (2x + 7) \times (x +  3)

You might be interested in
HELPPPPPPPP I NEED THE ANSWER PLZZZZZZZZZZZ!!!!!!!!!!! the solutions plz
Vesnalui [34]

Answer:

  1. c = -4.5
  2. z = 20
  3. x = -12
  4. a = -4/7

Step-by-step explanation:

A way to do this that will always work is ...

  • eliminate parenthses and collect terms
  • subtract any constants from the left side
  • subtract any variable terms from the right side
  • divide by the coefficient of the variable

1.

  • 8c -11 -6c = -2
  • 2c -11 = -2
  • 2c = 9
  • c = 4.5

2.

  • 3z +4 -2z -9 = 15
  • z -5 = 15
  • z = 20

3.

  • 12 -4x +18 = 36 +4x +18 -6x
  • 30 -4x = 54 -2x
  • -4x = 24 -2x
  • -2x = 24
  • x = -12

4.

  • 36a -9a -5 = 6a -17
  • 27a -5 = 6a -17
  • 27a = 6a -12
  • 21a = -12
  • a = -12/21 = -4/7
6 0
3 years ago
What is 15x+8y less than or equal to 64
navik [9.2K]
Less than, because if you add 15+8 it equals 23 so less than
5 0
3 years ago
Bly makes fleece scarves and sells them for $11 each. The supplies cost her $5 per scarf. Last month, Bly had a profit of $139.
seraphim [82]

Bly sold 29 scarves last month

<em><u>Solution:</u></em>

Let "x" be the number of scarves sold

Bly made 7 more scarves than she sold

Then, number of scarves made = x + 7

Bly makes fleece scarves and sells them for $11 each

Thus for selling "x" scraves , he will get 11x dollars

Total sales revenue = 11x

number of scarves made = x + 7

The supplies cost her $5 per scarf

Therefore, cost for scarves made = 5(x + 7)

Therefore,

profit = Total sales revenue - cost for scarves made

profit = 11x - 5(x + 7)

profit = 11x - 5x - 35

profit = 6x - 35

Last month, Bly had a profit of $139

139 = 6x - 35

6x = 174

x = 29

Thus Bly sold 29 scarves last month

5 0
3 years ago
¿Cuántas diagonales tiene un cuadrado de 64 centímetros de perímetro? Ayudenme pliss esq no entendí la pregunta :(
Ulleksa [173]

Answer:

English: the diagonal length and probably be 22.2

Spanish: la longitud diagonal y probablemente sea 22,2

5 0
2 years ago
Write each fraction or mixed number as a number as a decimal 2 3/8
weeeeeb [17]

Answer:

\tt2.375

Step-by-step explanation:

\tt = 2 \frac{3}{8}

\tt =  \frac{8 \times 2 + 3}{8}

\tt =  \frac{19}{8}

\tt = 19 \div 8

\tt = 2.375

3 0
2 years ago
Other questions:
  • Simplify the radical expression. Leave in radical form. Show your work<br><br> √75 + √3 √75 + √3
    10·2 answers
  • Please tell me if it 1 2 3 4 or 5
    14·1 answer
  • Which mixed number is equivalent to the improper fraction?<br> 21/9
    10·1 answer
  • Four-fifths of a number decreased by two is eighteen
    5·1 answer
  • 14 - ( 9t - 2 ) &lt; - t + 30 Anyone know multistep equations
    11·1 answer
  • Evaluate f(x) = 4x + 3x^2 − 5 when x = -2.<br> 23<br><br><br> -1<br><br><br> -25<br><br><br> -49
    6·1 answer
  • Will give brainliest please help there is only one question.
    5·2 answers
  • Solve the literal equation -cy + 8 = 4d – 3y for y.
    11·1 answer
  • Alenjandra spent her birthday money on a video game that cost $d, a controller for $13, and a memory card for $16. She had a $5
    5·1 answer
  • Simplify: 12a4 + (-29a4)​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!