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BigorU [14]
3 years ago
11

Which expressions are equivalent to 4(-52 + 2) + (-6) ?

Mathematics
2 answers:
labwork [276]3 years ago
7 0
Answer: None if the above

Let’s start by rewriting the equation

4(-52+2)+(-6)

We’re going to solve this using the PEMDAS method

P-parentheses
E-exponents
M-multiplication
D-division
A-addition
S-subtraction

The first step here is parentheses. That means we need to solve what is in parentheses first. That is (-52+2). Let’s do this now.

4(-52+2)+(-6)

4(-50)+(-6)

In this, +(-6) is the same thing as writing -6. Let’s fix this now.

4(-50)+(-6)

4(-50)-6

The next step here according to PEMDAS is multiplication. The multiplication we see here is 4 and -50. Let’s multiply this now.

4(-50)-6

-200-6

Finally, let’s add -200 and -6

-200-6

-206

This is your answer! Hope this helps comment below for more questions :)
olga_2 [115]3 years ago
6 0
None of the above is the correct answer.
4(-52+2)= -208+8, which equals -200.
-200+-6=-206
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Answer:

72 doctors recommended the medicine

Step-by-step explanation:

The question above is interpreted thus.

9 out of 10 implies 9/10. If 80 doctors were surveyed, the number of doctors that recommended the medicine is 9/10 of 80 doctors. Therefore,

\frac{9}{10}  \: of \: 80

=  \frac{9}{10}  \times 80

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3 years ago
What is the size of the resulting matrix. HELP!
MissTica

Answer:

2 by 2

Step-by-step explanation:

The first matrix is 2 x 3; that is, it has 2 rows and 3 columns.

The second matrix is 3 x 2.

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Can someone help me with this?
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