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AlekseyPX
3 years ago
11

Solve the equation below. SHOW ALL WORK!!! −3(y + 2) = 21

Mathematics
1 answer:
Maurinko [17]3 years ago
6 0

Answer:

y=-9

Step-by-step explanation:

-3(y+2)=21

1st Open parenthesis

-3y-6=21

+6       +6

-3y=27

/-3    /-3

y=-9

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Pls help i’m so dumb
Anna007 [38]

1. You got that one right ;)

2. 3(x+12)

3. c/3+10

4. 2+6x

5. 2/3x-11

6.  2(c-4)

7. 9x-7

8. 6x+7x

9. x+2x

10. 1/4x+11

4 0
3 years ago
Read 2 more answers
Which percent is equivalent to 13/25?
Diano4ka-milaya [45]

Answer:

52%

Step-by-step explanation:

13/25  

13 ÷ 25

0.52

0.52 × 100/100

0.52 × 100%

(0.52 × 100)%  

52%

4 0
3 years ago
CAN SOMEONE PLEASE ANSWER THISS ASAP PLEASE
solong [7]

Answer:

Step-by-step explanation:

11.04 = 10(1.02)^n

1.104 = 1.02^n

ln 1.104 = ln 1.02^n

ln 1.104 = n ln 1.02

n = ln 1.104/ ln 1.02

n = 4.99630409516

4.99 can be rounded to 5.

So a reasonable domain would be 0 ≤ x < 5

PART B)

f(0) = 10(1.02)^0

f(0) = 10(1)

f(0) = 10

The y-intercept represents the height of the plant when they began the experiment.

f(1) = 10(1.02)^1

f(1) = 10(1.02)

f(1) = 10.2

(1, 10.2)

f(5) = 10(1.02)^5

f(5) = 10(1.1040808)

f(5) = 11.040808

f(1)=10(1.02)^1

f(1)=10.2

Average rate= (fn2-fn1)/(n2-n1)

                     =11.04-10.2/(5-1)

                    =0.22

the average rate of change of the function f(n) from n = 1 to n = 5 is 0.22.  

8 0
3 years ago
Use the augmented matrix to determine if the linear system is consistent. Is the linear system represented by the augmented matr
Crazy boy [7]

Answer:

The correct option is (A).

Step-by-step explanation:

If the reduced row echelon form of the coefficient matrix of a linear system of equations in four different variables has a pivot, i.e. 1, in each column, then the reduced row echelon form of the coefficient matrix is say A is an identity matrix, here I₄, since there are 4 variables.

\left[\begin{array}{cccc}1&0&0&0\\0&1&0&0\\0&0&1&0\\0&0&0&1\end{array}\right]

Then the corresponding augmented matrix [ A|B] , where the matrix is the representation of the linear system is AX = B, must be:

\left[\begin{array}{ccccc}1&0&0&0&a\\0&1&0&0&b\\0&0&1&0&c\\0&0&0&1&d\end{array}\right]

Now the given linear system is consistent as the right most column of the augmented matrix is a linear combination of the columns of A as the reduced row echelon form of A has a pivot in each column.

Thus, the correct option is (A).

8 0
3 years ago
Simplify the given fractions 1/2 . 3/4​
madam [21]

Answer:

If you meant for 1/2 and 3/4 to be simplified, then they are already in their reduced forms.

Step-by-step explanation:

6 0
3 years ago
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