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vesna_86 [32]
2 years ago
8

Noah and Audrey are simplifying the expression 5x-4+x+2, whos is wrong and why;

Mathematics
1 answer:
tigry1 [53]2 years ago
3 0
5x - 4 + x + 2...combine like terms
6x - 2

Noah is wrong...he obviously forgot to add the x

write an expression that contains 3 terms : 6x^2 + 5x - 2
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Please help me with this
elena-s [515]

Answer:

9 p.m.

Step-by-step explanation:

Lowest common multiple (LCM) of 6 and 4.

LCM of 6, 4 = 2 × 2 × 3 = 12

After 12 hours 9 A.M. = 9 P.M.

After 12 hours at 9 P.M. she will take both medicines together again.

4 0
3 years ago
plz help In Alexis’ English class, 21 students completed an essay by the due date. There are 30 students in Alexis’ English clas
yarga [219]

Answer:

70%

Step-by-step explanation:

I'm sorry but I don't really know how to explain it other than 70% of 30 is 21 so that means that 30% of the students turned their essay in on time.

(sorry for not being able to explain it but I hope it helped)

8 0
3 years ago
Read 2 more answers
What is the length of AB?<br> O A. 9<br> O B. 18<br> O C. 48<br> D. 6
insens350 [35]
<h3>Answer:  A.  9</h3>

=====================================================

Explanation:

Draw in the segments AO and OC.

Triangle ABO is congruent to triangle CBO. We can prove this through the use of the HL theorem. HL stands for hypotenuse leg.

Since the triangles are congruent, this means the corresponding pieces AB and BC are the same length.

Then we can say:

AB+BC = AC .... segment addition postulate

AB+AB = AC .... plug in BC = AB

2*AB = AC

2*AB = 18

AB = 18/2 .... divide both sides by 2

AB = 9

In short, the chord AC is bisected by the perpendicular radius drawn in the diagram. So all we do is cut AC = 18 in half to get AB = 9.

6 0
2 years ago
Read 2 more answers
If <img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2-2" id="TexFormula1" title="f(x)=x^2-2" alt="f(x)=x^2-2" align="absmiddle"
jek_recluse [69]

Answer:

\boxed{f(6) = 34}

Step-by-step explanation:

Composition of functions occurs when we have two functions normally written similar or exactly like f(x) & g(x) - you can have any coefficients to the (x), but the most commonly seen are f(x) and g(x). They are written as either f(g(x)) or (f o g)(x). Because our composition is written as (f \circ g)(2), we are replacing the x values in the g(x) function with 2 and simplifying the expression.

g(2) = 3(2)

g(2) = 6

Now, because we are composing the functions, this value we have solved for now replaces the x-values in the f(x) function. So, f(x) becomes f(6), and we use the same manner as above to simplify.

f(6) = (6)^2-2

f(6) = 36-2

f(6) = 34

Therefore, when we compose the functions, our final answer is \bold{f(6) = 34}.

4 0
3 years ago
Read 2 more answers
Find the unit rate. A 6oz jar of jalapeños cost $2.34
Levart [38]

Answer:

1oz cost $0.39 which will be the unite rate

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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