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2 years ago

What is the one-hundredth term in the sequence 14, 19, 24, 29, 34…?

1 answer:

8 0

Rule: look at the sequence. It has the last number as 4 then 9 then for. 4 for odd numbers(odd term numbers like number 3,5 so on) so the last number of the 100 term is 9. It’s 509.

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A teacher had $23.25 to buy 23 rewards. Balloons cost $0.75 and noise makes are $1.50. How many balloons did she buy?

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

$23.25 divided by $0.75 is 31.

4 0

2 years ago

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What is the area of this figure?

umka21 [38]

137.5 I took the test and got 100%

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2 years ago

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A pancake recipe calls for 4 cups of flour and 3 cups milk.does the recipe calling for 2 cups flour and 1.5 cup milk use the sam

kramer

Yes because if you take 4:3 it equals out to be 2:1.5

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3 years ago

Use a matrix to solve the system:

Romashka-Z-Leto [24]

Answer:

(2.83 , 1 , 4)

Step-by-step explanation:

$2x+2y-z=4\\4x-2y-2z=2\\3x+3y-4z=-4\\$

Rewrite these equations in matrix form

$\left[\begin{array}{ccc}2&2&-1\\4&-2&-2\\3&3&-4\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\$

we can write it like this,

$AX=B\\X=A^{-1}B$

so to solve it we need to take the inverse of the 3 x 3 matrix A then multiply it by B.

We get the inverse of matrix A,

$A^{-1}=\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right] \\$

now multiply the matrix with B

$X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\$

4 0

2 years ago

Find the solution of the system of equations.<br><br> -7x+4y=-32<br> 9x-2y=38

zlopas [31]

Answer:

(4,-1)

x=4

y=-1

Step-by-step explanation:

7 0

1 year ago

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