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Svetach [21]
2 years ago
15

Here are the first five terms of an arithmetic sequence.

Mathematics
2 answers:
Likurg_2 [28]2 years ago
7 0

33-7n is the required expression.

Have a nice day!!

charle [14.2K]2 years ago
5 0

Answer:

the answer is -7n+ 33

Step-by-step explanation:

i usually just add the constant difference to the first term to create the last value . it sometimes doesnt work but does most times

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Three cubes of each side 4cm are joining end to end. Find the surfacing area of resulting cuboid.
nignag [31]
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3 0
3 years ago
Determine the vertex of the parabola:
Elza [17]

Answer:

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Step-by-step explanation:

7 0
3 years ago
What is the determinant of the coefficient matrix of this system? <br> 4x-3y=-8 <br> 8x-3y=12
gladu [14]

The coefficient matrix is build with its rows representing each equation, and its columns representing each variable.

So, you may write the matrix as

\left[\begin{array}{cc}\text{x-coefficient, 1st equation}&\text{y-coefficient, 1st equation}\\\text{x-coefficient, 2nd equation}&\text{y-coefficient, 2nd equation} \end{array}\right]

which means

\left[\begin{array}{cc}4&-3\\8&-3\end{array}\right]

The determinant is computed subtracting diagonals:

\left | \left[ \begin{array}{cc}a&b\\c&d\end{array}\right]\right | = ad-bc

So, we have

\left | \left[\begin{array}{cc}4&-3\\8&-3\end{array}\right] \right | = 4(-3) - 8(-3) = -4(-3) = 12

8 0
3 years ago
∠a and ∠b are complementary angles. ∠a measures 32੦. What is the measure of ∠b?
Ganezh [65]

Answer:

b = 58

Step-by-step explanation:

Complementary angles add to 90 degrees.

a+b = 90

32+b = 90

Subtract 32 from each side

32+b-32 = 90-32

b = 58

3 0
3 years ago
Read 2 more answers
Express 24/40 and 18/42 in their simplest forms.Show your works
Maru [420]

Answer:

24/40 = 4/5

18/42 = 3/7

Step-by-step explanation:

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7 0
2 years ago
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