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Lubov Fominskaja [6]
3 years ago
14

Please can someone help

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

He needs 8 bags of cement, 17 bags of sand and 21 bags of stone.

Step-by-step explanation:

Just use a calculator and you explain. Don't trust us to give you every answer

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PLEASE HELP ME!!!!
12345 [234]

This is what I got, but you might want to double check me because I'm not that good at math (this is what I got for the discontinuity);

1. f(x)= x^2+6+8/x+4

*x+4=0                                      

-4 -4                                      

 x= -4

This means that x cannot equal -4

2. f(x)= (x+2)(x-4)/(x+2)(x+2)

*Note: When I did my calculations, I cancelled out all (x+2) binomials except for one in the denominator*

f(x)= x-4/x+2

*x+2=0                                      

   -2 -2                                      

     x= -2

This means x cannot equal -2

*You may want to check my work, but I believe that your answer is going to be either C or D. Personally, I assume it's C, but that's just me. Anyway, it's probably going to be C or D, or at least that's what I think.*

3 0
3 years ago
Read 2 more answers
The amount of money in an account can be determined by the formula A re where is the
Paladinen [302]

Answer: $10272.17

Step-by-step explanation: Please see attachment for explanation

5 0
3 years ago
Read 2 more answers
Which of the following expressions is equal to 2x^(2)+8?
Rina8888 [55]

Answer:

The expression equal to 2x^(2)+8 is:

First option (2x-4i)(x+2i)

Step-by-step explanation:

If we multiply

(2x-4i)(x+2i)=(2x)(x)+(2x)(2i)-(4i)(x)-4i(2i)

(2x-4i)(x+2i)=2x^(1+1)+4xi-4xi-8i^(1+1)

Simplifying:

(2x-4i)(x+2i)=2x^2-8i^2

and i^2=-1, then:

(2x-4i)(x+2i)=2x^2-8(-1)

Multiplying:

(2x-4i)(x+2i)=2x^2+8

4 0
3 years ago
The most frequently occurring value of a data set is called the a. range. b. mode. c. median. d. mean.
tankabanditka [31]

Answer:

B. Mode

Step-by-step explanation:

The mode of any distribution is the value with the most recurrence in a given set of data or distribution. It is also possible that such given set of data have more than one mode. They can be bimodal, that is having two modes and they can be multimodal, that is having multiple modes.

For example, in a given set of data like 2,3,3,5,6,7,7,7,7,7,9, the most occurring value or entry is 7 and the mode of the set of data is said to be 7.

3 0
3 years ago
PLEZ HELP I NEED HELP BADLYYY!!!
ch4aika [34]
Alright, we know that we have to spend 499 dollars on a computer as a base cost. Next, we have to buy 49.99 * x dollars worth of games (since games are 49.99 each), adding up to 499+49.99*x

Alright, so plugging 5 in for x, we get 499+49.99*5=744.95

Since one controller is 24.99, the money for buying a y amount of controllers would be 24.99*y., making the expression 499+49.99x+24.99y

Since in part D, there are no games, we plug these in to get 
499+49.99*0++24.99*3=573.97 dollars
5 0
4 years ago
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