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denis23 [38]
3 years ago
9

HELP ME ANSWER THIS NO EXPLANATION JUST THE ANSWER

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
7 0
I’m pretty sure d, but not sure sorry
Liula [17]3 years ago
4 0

Answer:

C

Step-by-step explanation:

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Martha (from problem 9) has some expenses each week. Each week she buys $9.72 worth of
Verdich [7]

if Martha is not earning money to pay it back, it would be negative. Each week, she loses -9.72 dollars. so -9.72 x 3 weeks = your problem. I'll let you take it from there and solve the rest

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3 years ago
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Can someone solve #7 please
umka2103 [35]

Answer: Triangles B and C

Step-by-step explanation: Because one side is divisible by 1,2,5,10 and the other side is divible by 1,3,9, etc

8 0
2 years ago
For which values of the parameter B the following system admits a unique solution [ 1 b 1-b 2 2 0 2–2B 4 0] [x y z] = [1 2 0]
photoshop1234 [79]

Answer: β ≠ ±1

Step-by-step explanation: For a system of equations to have an unique solution, its determinant must be different from 0: det |A| ≠ 0. So,

det \left[\begin{array}{ccc}1&\beta&1-\beta\\2&2&0\\2-2\beta&4&0\end{array}\right] ≠ 0

Determinant of a 3x3 matrix is calculated by:

det \left[\begin{array}{ccc}1&\beta&1-\beta\\2&2&0\\2-2\beta&4&0\end{array}\right]\left[\begin{array}{ccc}1&\beta\\2&2\\2-2\beta&4\end{array}\right]

8(1-\beta)-[2(2-2\beta)(1-\beta)]

8-8\beta-4+8\beta-4\beta^{2}

-4\beta^{2}+4\neq 0

\beta^{2}\neq 1

\beta \neq \sqrt{1}

β ≠ ±1

For the system to have only one solution, β ≠ 1 or β ≠ -1.

7 0
3 years ago
Find x, y, z please help!
ki77a [65]

Answer:

x is 1 y is 1 and a is 1 hope this helped

6 0
3 years ago
Which is more 2/3 or 2/4
goblinko [34]
The answer would be 2/3 is greater than 2/4. Two- thirds is equivalent to 0.67 while 2/4 is equivalent to 1/2 or 0.5. Of course, 0.67 is greater than 0.5.
6 0
3 years ago
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