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fomenos
3 years ago
15

Can some on e please help me understand this

Mathematics
1 answer:
umka21 [38]3 years ago
4 0
It’s P.E.M.D.A.S

P= parenthesis ()
E= exponent
M= multiplication or Multiply
D= Division or divided
A= Addition
S= Subtraction
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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Given 4x(5x+6)=-5 what value of x makes this equation true?
solmaris [256]

Answer:

x = 8.8

Step-by-step explanation:

4x(5x+6)=-5

20x + 24x = -5

44x = -5

44 divided by 5 equal 8.8

x = 8.8

pls mark brainlest ;)

Hope this helps you :)

4 0
3 years ago
One of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average
Nonamiya [84]

Answer:

0.0930

Step-by-step explanation:

Given that one of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average, 6 days.

she tests a one-sided alternative about the population mean cold duration when drinking coffee, H0: μcoffee = 6 Ha: μcoffee < 6 She finds z = −1.68 with one-sided P-value P = 0.0465.

If hypotheses changed to two tailed as:

H_0: \mu_{coffee}  = \mu_{tea}\\H_a: \mu_{coffee}\neq \mu_{tea}

(Two tailed test)

Since we have mean difference and std error the same, test statistic would remain the same.

p value for two tailed would be = twice the p value for one tail

=2(0.0465)\\= 0.0930

6 0
3 years ago
What is the slope of the line
BigorU [14]

Answer:

-8/46

Step-by-step explanation:

slope is the change of y over the change in x

-5 - 3 divided by 44 - (-2)

-8/46

4 0
3 years ago
How many cubes with side lengths of cm does it take to fill the prism?
Sophie [7]
The answer is Stan twiceushisnsskkemr
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2 years ago
Customers arrive at a bank at a rate of 12/hour. It takes the clerk on average 4 minutes to help each customer. a. What is the a
-Dominant- [34]

Answer:

Step-by-step explanation:12 customers per hour..

4minutes per customer..

Time customers must wait= 12customers ×4minutes =48 minutes.. The clerk use 48minutes to attend to 12customers in one hour leaving him with 12spare minutes.

(B)since the clerk has 12 minute to spare it means each customer have a minute to wait before getting attention..

(C)number of customers waiting =12/2=6customers...

4 0
3 years ago
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