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viktelen [127]
2 years ago
14

Sorry I meant this one

Mathematics
2 answers:
GalinKa [24]2 years ago
8 0

Answer:

3 3/4

Step-by-step explanation:

e-lub [12.9K]2 years ago
4 0

Answer:3/3/4

Step-by-step explanation:

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Find the length of side x in simplest radical form with a rational denominator.
olga_2 [115]

Answer:

10

Step-by-step explanation:

\sin 30\degree = \frac{5}{x}\\\\ \frac{1}{2}= \frac{5}{x}\\\\x = 5\times 2\\\\x = 10 \\

6 0
2 years ago
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What is the midpoint of the segment shown below??
Leno4ka [110]

Answer:

c

Step-by-step explanation:

4 0
2 years ago
Emily earns $40,000 a year. She pays 30% tax every year on her annual earnings. How much money does she pay in tax?
navik [9.2K]
12,000 is what she pays in taxes
4 0
2 years ago
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How many distinct pairs of disjoint non-empty subsets of A are there, the union of which is all of A?
Mrac [35]
A = {1, 2, 5, 6, 8}
{1} U {2, 5, 6, 8} 
{2} U {1, 5, 6, 8} 
{5} U {1, 2, 6, 8} 
{6} U {1, 2, 5, 8} 
{8} U {1, 2, 5, 6} 
{1, 2} U {5, 6, 8} 
{1, 5} U {2, 6, 8} 
{1, 6} U {2, 5, 8}
{1, 8} U {2, 5, 6} 
{1, 2, 5} U {6, 8} 
{1, 2, 6} U {5, 8}
{1, 2, 8} U {5, 6}
{1, 5, 6} U {2, 8}
{1, 5, 8} U {2, 6}
{1, 6, 8} U {2, 5} 
The answer is 15 distinct pairs of disjoint non-empty subsets.
5 0
3 years ago
Solve the system of equations using matrices. x+7y=02x−8y=22 Question 7 (Mandatory) (1 point) Step 1. Find the coefficient matri
Alex Ar [27]

Answer:

x=7

y =-1

Step-by-step explanation:

Given is a system of equations in x and y as

x+7y=0\\2x-8y =22

This can be written in matrix form as

Ax = B

\left[\begin{array}{ccc}1&7\\2&-8\end{array}\right]\left[\begin{array}{ccc}x\\y\end{array}\right]  =\left[\begin{array}{ccc}0\\22\end{array}\right]

Let us find inverse of A

|A| = -8-14 =-22

A^{-1} =\frac{-1}{22} *\left[\begin{array}{ccc}-8&-7\\-2&1\end{array}\right]

X= A ^(-1) B

x=7, y =-1

4 0
3 years ago
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