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Westkost [7]
3 years ago
12

The difference 25(d−10)−23(d+6)25(d−10)−23(d+6) is

Mathematics
2 answers:
MArishka [77]3 years ago
8 0
25d - 250 | - 575d^2 + 2277d + 34362
Vlada [557]3 years ago
3 0

Answer: 2d - 388

Step-by-step explanation:

To expand the equation 25(d−10)−23(d+6)

We open the brackets first;

25d - 250 - 23d - 138

Collecting like terms

= 25d - 23d - 250 - 138

= 2d - 388

Therefore the difference is 2d - 388

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How many solutions does the equation −6a + 6a + 5 = 8 have? One Two No solution Infinite solutions
umka21 [38]
<span>−6a + 6a + 5 = 8 
5 = 8  False

So, </span><span>No solution.</span>
5 0
3 years ago
At the market, Meyer buys a bunch of bananas for $0.65 per pound and a frozen pizza for $4.99. The total for his purchase was $6
deff fn [24]

Answer:

Meyer bought 3 pounds of bananas

Step-by-step explanation:

6.94-4.99= 1.95

1.95 is how much spent on bananas, I know that bananas are .65 cents a pound so,

1.95/.65= 3

4 0
2 years ago
3x − 2y = −2
Lina20 [59]

Answer: C. -3y+14

Step-by-step explanation:

3x-2y=-2\\x+3y=14

Move 3y to ther right side.

3x-2y=-2\\x=-3y+14

So the answer is C. Because x = -3y+14.

7 0
3 years ago
Read 2 more answers
The following are the last 10 run scores Colin got in cricket:
Softa [21]
A) mean score = (18+25+28+15+6+18+2+4+25+15)/10
= 15.6 runs
Approximately 16 runs
b) (18+25+28+15+6+18+2+4+25+15+31)/11
= 17 runs
8 0
3 years ago
Read 2 more answers
Is the data set approximately periodic?
wolverine [178]

Answer:

Option: C is the correct answer.

       C. Periodic with period 4 and amplitude of about 15.

Step-by-step explanation:

We are given the table of values as:

Hour             1 -- 2 -- 3 --  4 --  5 -- 6 -- 7 -- 8 -- 9 -- 10 -- 11

Number       24-41-10-32-26-38-9-31-25-39-12

of boats

As we could see that after every 4 value the values are approximately repeating.

Hence,the data set is approximately periodic.

Also, the amplitude is calculated as:

Average of the maximum and minimum value of each set

We divide the set into 3 sets as follows:

 Hour                       1           2           3            4

Number of boat      24        41          10           32

Here we have amplitude as:

         (41-10)/2=15.5

 Hour                       5           6           7            8

Number of boat      26        38           9           31

  Amplitude is:

          (38-9)/2=14.5

Hour                       9           10          11            12

Number of boat      25        39          12      

            Amplitude is:

            (39-12)/2=13.5

Hence, we see that the amplitude is about 15.

   

4 0
3 years ago
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