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
In-s [12.5K]
3 years ago
7

What is the value of x in the equation 2x + 9 = 21? (4 points)

Mathematics
1 answer:
Triss [41]3 years ago
8 0

answer=2x=12,x=6

2z+4=0,z=-2

You might be interested in
What is the image point of (8,-3) after a translation right 5 units and down 5 units?
pshichka [43]

Answer: (13, -8)

Step-by-step explanation:

Subtract 5 from -3

Add 5 to 8

3 0
3 years ago
1.Encuentra de dos formas diferentes el área de las figuras mostradas en cada literal:​
MA_775_DIABLO [31]

Answer:

Cuadrilátero A: A = y^{2}+4\cdot y +4

Cuadrilátero B: A = a^{2}+6\cdot a + 9

Step-by-step explanation:

Existen dos formas distintas de determinar las áreas de cada cuadrilátero:

(i) <em>Obtener el área de cada cuadrado y sumar los resultados.</em>

(ii) <em>Calcular los lados del cuadrilátero grande y determinar el área. </em>

Cuadrilátero A

Método (i)

A = y^{2}+2\cdot y +4+2\cdot y

A = y^{2}+4\cdot y +4

Método (ii)

A = (y+2)\cdot (y+2)

A = y^{2}+4\cdot y + 4

Cuadrilátero B

Método (i)

A = a^{2}+3\cdot a +9 + 3\cdot a

A = a^{2}+6\cdot a +9

Método (ii)

A = (a+3)\cdot (a+3)

A = a^{2}+6\cdot a + 9

8 0
3 years ago
Yes im playing prodigy LOL
Ilya [14]

Answer:

0,05

Step-by-step explanation:

1)First, Let’s find the mean of the data table

12 + 10 + 12 + 6 + 8 + 4 + 2 + 12 = 66

66 ÷ 8 = 8,25

2)12 - 8,25 = 3,75

10 - 8,25 = 1,25

12 - 8,25 = 3,75

6 - 8,25 = -1,75

8 - 8,25 = -0,75

4 - 8,25 = -3,75

2 - 8,25 = -5,75

12 - 8,25 = 3,75

3) 3,75 + 1,25 + 3,75 - 1,75 - 0,85 - 3,75 - 5,75 + 3,75 = 0,4

0,4 ÷ 8 = 0,05

8 0
3 years ago
In February Liliana spent 35 hours watching Netflix. In march she only spent 18 hours watching. What was the percent decrease in
ArbitrLikvidat [17]
I think the answer would be a
3 0
3 years ago
(-36)^1/2=<br> a.) 1/6<br> b.) -6<br> c.) no real number
hjlf

It's suppose to be -18 so I guess no real number....

4 0
3 years ago
Other questions:
  • A swimming pool has a rectangular base 10 ft long and 20 ft wide. The sides are 4 ft high, and the pool is half
    14·1 answer
  • How are percents,fractions,and decimals related
    15·2 answers
  • Pls help ima give BRAINLIST and a like
    7·1 answer
  • What would be half of one fifth?
    14·1 answer
  • What's the answer to this problem?
    11·1 answer
  • Which of the following is the complex conjugate of the complex number below? 4+51i
    10·1 answer
  • PLZ HURRY IT'S URGENT!!!!!
    8·1 answer
  • Rita charges $60 for 5 tutoring session. What is the cost per session?
    11·1 answer
  • A little help would be great...
    13·1 answer
  • Can someone help. pls ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!