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vaieri [72.5K]
3 years ago
7

Reba needs to simplify the expression below. 6 and one-half + 3.5 times 2 minus 7 divided by 3 Which operation should she perfor

m first? addition subtraction multiplication division
Mathematics
2 answers:
Alexxandr [17]3 years ago
8 0

Answer:

Multiplication

Step-by-step explanation:

Multiplication should be the first step Reba needs to do to simplify the expression. This is according to PEMDAS, which is an acronym for the order to solve equations

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

natka813 [3]3 years ago
3 0

Answer:

  • multiplication

Step-by-step explanation:

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elena-s [515]

Answer:

answer is c makes sense because you just add 1.25 x 20

3 0
3 years ago
There are two cookie jars: jar 1 contains two chocolate chip cookies and three plain cookies, and jar 2 contains one chocolate c
vesna_86 [32]

Answer:

P = 0.55   or  55 %

Step-by-step explanation:

First step:  Fred has probability of 0,5 when chossing jar 1 or jar 2

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Then the probability of Fred to get a chocolate chip cookie is

P ( get a chocolate chip cookie ) =( 0.5 * 3/5) +( 0.5* 1/2)

P = 0.3 + 0.25

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8 0
3 years ago
X + 5 = -3^x + 4<br> A. X= -2.25<br> B. X= 3.75<br> C. X= -1.25<br> D. X= 1.25
Tamiku [17]
I think it is D the answer choose
7 0
3 years ago
Read 2 more answers
Solve 2cos^2x+5cosx+2=0
Nuetrik [128]
2cos^2x+5cosx+2=0\\&#10;x\in\\&#10;\Delta=b^2-4ac\\&#10;\Delta=9\\&#10;\sqrt{\Delta}=3\\&#10;cosx=1\\&#10;or\\&#10;cosx=-6\\&#10;-6\notin\\

Then using trygonometric table or a graph we read that:
cosx=1\Leftrightarrow(x)=0

Period of cosinus function = 2π
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6 0
3 years ago
Hello I need urgent help with this question!!
lisov135 [29]

Answer:

B

Step-by-step explanation:

First we find the vertex, which is the bottom of the "V" shape visually, you see it is -3, 4

That means answer is A or B. The x intercepts are where the line crosses the x axis, with is -5,0 and -1,0, so it has to be B!

click the heart button to give thanks :) merry xmas

5 0
3 years ago
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