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
Aloiza [94]
3 years ago
11

What is 12-11a=45 What is a? 100 points

Mathematics
2 answers:
Evgen [1.6K]3 years ago
4 0

Answer: a = -3

Step-by-step explanation:

Simplifying

12 + -11a = 45

Solving

12 + -11a = 45

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-12' to each side of the equation.

12 + -12 + -11a = 45 + -12

Combine like terms: 12 + -12 = 0

0 + -11a = 45 + -12

-11a = 45 + -12

Combine like terms: 45 + -12 = 33

-11a = 33

Divide each side by '-11'.

a = -3

Simplifying

a = -3

Lelu [443]3 years ago
3 0

Answer:

a=-3

Step-by-step explanation:

-11a=45-12

-11a=33

a= -33/11

a=-3

You might be interested in
. The estimate regression equation for a model involving two independent variables and 10 observations follows.y = 29.1270 + 0.5
beks73 [17]

Answer:

b) y = 289.815 when x_1 = 180 \text{ and } x_2 = 310

Step-by-step explanation:

We are given the following information in the question:

y = 29.1270 + 0.5906x_1 + 0.4980x_2

where y is the dependent variable,

x_1, x_2 are the independent variable.

The multiple regression equation is of the form:

y = b_0 + b_1x_1 + b_2x_2

where,

b_0: is the intercept of the equation and is the value of dependent variable when all the independent variable are zero.

b_1: It is the slope coefficient of the independent variable x_1.

b_2: It is the slope coefficient of the independent variable x_2.

  • The regression coefficient in multiple regression is the slope of the linear relationship between the dependent and the part of a predictor variable that is independent of all other predictor variables.

Comparing the equations, we get:

b_1 = 0.5906\\b_2 = 0.4980

  • This means holding x_2 constant, a change of one in x_1 is associated with a change of 0.5906 in the dependent variable.
  • This means holding x_1 constant, a change of 1 in x_2 is associated with a change of 0.4980 in the dependent variable.

b) We have to estimate the value of y

y = 29.1270 + 0.5906(180) + 0.4980(310) = 289.815

3 0
3 years ago
Solve for x: negative 3 over 2, multiplied by x minus 9 equals negative 27 −24 −12 11 12 Btw please show the work bc i not only
Firdavs [7]

Answer:

\boxed{ x = 12}

Step-by-step explanation:

<u>Given Equation is:</u>

\frac{-3}{2} (x) - 9 = -27

Adding 9 to both sides

=> \frac{-3x}{2} = -27+9

=> \frac{-3x}{2} = -18

Multiplying 2 to both sides

=> -3x = -18 * 2

=> -3x = -36

Dividing both sides by -3

=> x = 12

6 0
4 years ago
Read 2 more answers
URGENT!! PLEASE HELP!!
mart [117]

Answer: a 68 c57 b55 I think

Step-by-step explanation:

A triangles angles add up too 180 so just subtract the sum and the two angles and you are done.

5 0
3 years ago
How much louder (more intense) is a 55-decibel sound than a 10-decibel sound?
fredd [130]

Answer:

Try using quizlet or ask for a tutor I don’t understand that

Step-by-step explanation:

8 0
3 years ago
If i buy 6 pencils for $5.64 how much do they cost per pencil
Naya [18.7K]

Answer:The answer is 0.94 cent each

Step-by-step explanation:

if you divide 5.64 into 6 it will give you the conclusion 0.94 for eache pencil.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Answer to -5x-6x&lt;8-8n-n
    9·1 answer
  • A bag with 2 1/6 ounces of peanuts can make 2/5 of a jar of peanut butter. It can make a full jar with how many ounces of peanut
    14·1 answer
  • an earthquake measures 3.6 on the richter scale. what is the amount of energy (ergs) released by the earthquake? give an exact a
    5·1 answer
  • 11,20,29, Find the 30th term.
    9·1 answer
  • Divide. −4 2/5÷(−5)<br> −22/25<br><br> −8/25<br><br> 8/25<br><br> 22/25
    8·2 answers
  • Help plz 1o pionts all i have
    14·2 answers
  • 8 times the difference between a number and 6 is equal to 4 times the number.
    12·1 answer
  • 10|x+8| - 13 = -2|x+8|+11
    8·1 answer
  • Help me please please
    9·2 answers
  • Find an expression which represents the sum of (7x-y)(7x−y) and (5x+3y)(5x+3y) in simplest terms.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!