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densk [106]
3 years ago
9

Answer them please ​

Mathematics
2 answers:
Margaret [11]3 years ago
5 0

Answer: Okay so you will first come over and take out the a and b and  then that will become c and then you add the rest of the numbr up equaling to

7

Step-by-step explanation: why because 7 is the answer and i know it for all of them your teacher tricked you so you would get a diffrent answer just put 7 trust

plz repay and do mine

Fantom [35]3 years ago
4 0

Answer:

16

Step-by-step explanation:

1/2 x 1/2 = 1/4

2 x2 x 2 x 2 x 2 x2 = 64

1/4 x 64 = 16

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Divide:<br> 8.6) 3.440<br> short answer
ivanzaharov [21]

Answer:

well your answer will be 2.5

Step-by-step explanation:

2.5

5 0
3 years ago
Read 2 more answers
Im sorry I keep asking so much but please help
KonstantinChe [14]

Answer:  Yellow flowers 3 1/3 And red flowers 7

Step-by-step explanation:

So you take 3 and put into 1/3. You get 3 1/3 because if you multiply them together you get 21 and there's 21 yellow flowers in  total. Then for "R" (red flowers) you would divide 21 by 3 (the reason you divided it by 3 is because there's 3 times the number of red flowers.) you would get 7.

Yellow Flowers: 3 1/3

Red Flowers: 7

8 0
3 years ago
Read 2 more answers
Could you explain this problem on a fourth grade level. Philip is making a poster that is 36 inches long and 24 inches wide, He
mihalych1998 [28]

The answer would be 31 inches long and 12 inches wide because you would subtract 36 - 5 and 24 - 12

3 0
4 years ago
The mean number of hours per day spent watching television, according to a national survey, is 3.5 hours, with a standard deviat
aleksley [76]

Answer:

4.5 hour and 2 hour

Step-by-step explanation:

Given: The mean number of hours per day spent watching television, according to a national survey, is 3.5 hours, with a standard deviation of two hours.

To Find: If each time was increased by one hour, what would be the new mean and standard deviation.

Solution:

let the total numbers entries of hours in survey be   =   \text{N}

each entry in survey be  =  \text{x}_{i}

mean of survey is     =     \mu  =3.5 \text{hours}

standard deviation is  =   \sigma = 2 \text{hours}

if each entry in survey is increased by one hour then,

each new entry in survey  is =  \text{x}_{i}+1

the new mean is\mu_{new}  = \frac{\text{sum of all hours}}{total number of entries}

                                                \frac{\text{x}_{1} +1+\text{x}_{2}+1 +....+\text{x}_{N}+1 }{N}

                                                \frac{(\text{x}_{1} +\text{x}_{2} +....+\text{x}_{N})+\text{N}\times1 }{N}

                                                \frac{(\text{x}_{1} +\text{x}_{2} +....+\text{x}_{N})}{N}+\frac{\text{N}\times1 }{N}

                                             \mu_{new} = \mu + 1=4.5 \text{hours}

now,

standard deviation is      \sigma_{new}= \sqrt{\sum_{1}^{N}\frac{(\text{x}_{inew}-\mu_{new})^{2}}{N}}

                                   \text{x}_{inew}= \text{x}_{i}+1

                                   \mu_{new}=\mu+1        

putting values,

                                                \sqrt{\sum_{1}^{N}\frac{(\text{x}_{i}+1-\mu-1)^{2}}{N}}

                                                \sqrt{\sum_{1}^{N}\frac{(\text{x}_{i}-\mu)^{2}}{N}}= \sigma

                                 \sigma_{new}        =2

new mean and standard deviation are 4.5 and 2 \text{hours}

                                               

5 0
3 years ago
The Click-O Pen Company produced 1.8x10^6 pencils each year for 4 years. What was the total number of pencils the Click-O Pen Co
Nataliya [291]

Answer: The pencils produced by Click-O-Pen Company for 4 years  = 7.2\times 10^6

Step-by-step explanation:

Given :

Pencils produced by Click-O-Pen Company each year = 1.8\times 10^6

Using unitary method:

Pencils produced by Click-O-Pen Company for 4 years  = \frac{1.8\times 10^6}{1}\times 4=7.2\times 10^6

Thus Pencils produced by Click-O-Pen Company for 4 years  = 7.2\times 10^6

8 0
4 years ago
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