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Fofino [41]
3 years ago
11

What percent of 65 gives you 33

Mathematics
1 answer:
GREYUIT [131]3 years ago
6 0

Answer:

50.8%

Step-by-step explanation:

Convert fraction (ratio) 33 / 65 Answer: 50.769230769231%

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Contruct 3 equation starting with -2
olga_2 [115]

Answer:

1. -2, 2. -23, 3. 25

Step-by-step explanation:

1. -2+5x8/-12=  step 1: add -2+5

-2+5=3       step 2: 3(8)

3x8= 24     step 3: 24/-12

24/-12= -2

2. -2(9-4)+3=?  step 1: combine like terms -2(9) and -2(-4)

-18-8+3=?    step 2: combine like terms

-26+3=?      step 3: combine like terms

-23=?

3. 2x + 130=180    step 1: -130 on both sides

   2x = 50              step 2: /2 on both sides

    x = 25

7 0
2 years ago
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Betty had $40 in her pocket. She bought 12 identical bags of popcorn. Betty was left with $10 after buying the popcorn. What was
olga_2 [115]
2.50.....................................
4 0
3 years ago
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Find all of the eigenvalues λ of the matrix A. (Hint: Use the method of Example 4.5 of finding the solutions to the equation 0 =
Svetradugi [14.3K]

Answer:

\lambda=8,\ \lambda=-5

Step-by-step explanation:

<u>Eigenvalues of a Matrix</u>

Given a matrix A, the eigenvalues of A, called \lambda are scalars who comply with the relation:

det(A-\lambda I)=0

Where I is the identity matrix

I=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]

The matrix is given as

A=\left[\begin{array}{cc}3&5\\8&0\end{array}\right]

Set up the equation to solve

det\left(\left[\begin{array}{cc}3&5\\8&0\end{array}\right]-\left[\begin{array}{cc}\lambda&0\\0&\lambda \end{array}\right]\right)=0

Expanding the determinant

det\left(\left[\begin{array}{cc}3-\lambda&5\\8&-\lambda\end{array}\right]\right)=0

(3-\lambda)(-\lambda)-40=0

Operating Rearranging

\lambda^2-3\lambda-40=0

Factoring

(\lambda-8)(\lambda+5)=0

Solving, we have the eigenvalues

\boxed{\lambda=8,\ \lambda=-5}

8 0
3 years ago
Find the 4th term of the expansion of (x+2)^5.​
djyliett [7]

Answer:(2x + 5)⁵

Step-by-step explanation:I assume you mean the 4th term of the expansion of (2x + 5)⁵. The coefficient can be found from pascal's triangle.

3 0
3 years ago
I need help please and explain me thanks
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Day 1 and Day 3 his score add up to zero.
Day 2 and Day 4 his score add up to zero.
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