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3 years ago

Help me on this please thank you

Mathematics

2 answers:

den301095 [7]3 years ago

6 0

Answer:

Angela is correct. Ricardo made a mistake which was that he probably got confused and did four times three plus two instead of four plus three times two.

Airida [17]3 years ago

4 0

Answer:

Angela is correct,

Step-by-step explanation:

4 + 3 x 2= ?

you need to use pemdas

Parenthesis, exponents, multiplication, division, addition, subtraction.

so for this question we would start with multiplication

so 3 x 2 = 6

so this would change the question to

4 + 6 and if we evaluate this question we get 10

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How do you round 3y+4-6=-21 to the nearest hundredth

NARA [144]

Answer:

-19

Step-by-step explanation:

3y+4-6=-21

3y+4-4-6=-21-4

3y-6=-25

3y-6+6=-25+6

3y=-19

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6 0

3 years ago

Whats 2+2-1+17-9+29-9= Hows your day

grigory [225]

Answer:

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3 years ago

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mamaluj [8]

Answer:

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3 years ago

Show work and Factor 4x^2+xy-18y^2

grigory [225]

Answer:

$4x^2+xy-18y^2=(4x+9y)\,(x-2y)$

Step-by-step explanation:

Let's examine the following general product of two binomials with variables x and y in different terms:

$(ax+by)\,(cx+dy)= ac\,x^2+adxy+bcxy+bdy^2$

so we want the following to happen:

$a\,c = 4\\ad+bc=1\\bd--18$

Notice as well that $ad+bc =1$ means that those two products must differ in just one unit so, one of them has to be negative, or three of them negative. Given that the product $bd=-18$ , then we can consider the case in which one of this (b or d) is the negative factor. So let's then assume that $a\,\,and \,\,c$ are positive.