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lesya [120]
3 years ago
7

Which expressions are completely factored?

Mathematics
2 answers:
Elena L [17]3 years ago
8 0
I’m pretty sure all of them are completely factored.
sineoko [7]3 years ago
8 0

Answer:

B

Step-by-step explanation:

The only thing that you can factor out of B is 6, while the others are not in simplest form. Answer C can still factor out 2 and answer choice D can still factor out a. Answer choice can still be factored further using difference of squares.

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Using the piling method, which of the following can be constructed from polygons alone? check all that apply
zimovet [89]

Answer:

Prism, Pyramid not including vertex

Step-by-step explanation:

Apex

5 0
3 years ago
Mrs. Shoelady gave her children $2.40 in quarters, dimes, and nickles. The number of nickles was twice the number of quarters. T
PilotLPTM [1.2K]

Answer:

6 quarters, 3 dimes, and 12 nickles

Step-by-step explanation:

Let's say Q is the number of quarters, D is the number of dimes, and N is the number of nickles.

From the information in the problem, we can write three equations:

25Q + 10D + 5N = 240

N = 2Q

Q = 2D

Solve the system of equations using substitution.

25(2D) + 10D + 5(2Q) = 240

50D + 10D + 10Q = 240

60D + 10(2D) = 240

60D + 20D = 240

80D = 240

D = 3

Q = 6

N = 12

There are 6 quarters, 3 dimes, and 12 nickles.

7 0
3 years ago
Please help me with this
shutvik [7]

Answer:

1) 151.29 | 2) 413 km | 3) 75 cm

Step-by-step explanation:

1) 12.3 x 12.3 = 151.29 in

2) 17.5 x 23.6 = 413 km

3) 15 x 5 = 75 cm

4 0
3 years ago
Answer all question for brainliest
Neporo4naja [7]

Answer:

4.

  • this shows that the height of 13 year old females in one class is less variable than the other class.
  • this means that the height of students in class with range 6 may vary from person to person while that in class with range 3 maybe clustered around one another.
  • we're expected to see students of almost same height in class ,with range 3, more than the students in class with range 6.

5.

arranging the values in ascending order

2, 2, 4, 4, 4, 5, 6, 6, 6, 8, 8, 9

mean  =   \frac{ sum \: of \: all \: observations}{total \: number \: of \: observations}

= \frac{2+2+4+4+4+5+6+6+6+8+8+9}{12}

= \frac{64}{12}  \\  =  \frac{16}{3}

median = 1/ 2 [ n/2th term +{ (n/2)+ 1 }th term ]

for n is even

= 1/ 2 [ 6th + 7th term]

= 1/ 2 [5 + 6]

= 5.5

mode = value with highest frequency or the value that appears most frequently In a given set of data.

mode =4, 6

because both 4and 6 appear 3 times in the given set of data which is the highest frequency.

5 0
3 years ago
Read 2 more answers
Add me on Insta I need help with assignments yalbabyyyy_
natita [175]

Mine is-bxbby.vickyv2

Step-by-step explanation:

4 0
3 years ago
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