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Elena-2011 [213]
3 years ago
5

16-25(b+3) square

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0
Since 16 and 25 are perfect squares you can factor the first part.
4^2-5^2(b+3)^2
=(4-5(b+3))(4+5(b+3))
=(4-5b-15)(4+5b+15)
=(-11-5b)(19+5b)

Which can be expanded if necessary,
= -209+150b-25b^2
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Joe worked as a waiter at a charity banquet. He earned $17.50 for each hour worked. Joe also received a tip for this event in th
Alenkasestr [34]

Answer:

Joe still owes his dad $121.83

Step-by-step explanation:

Joe's new loan balance after paying his dad = amount he owes his dad - joes profit

Joe's profit from working as a waiter = Revenue - cost of renting a uniform

Revenue = amount earned for total hours worked + tips

total hours worked = 4 hours + 2.5hours = 6.5 hours

amount earned for total hours worked = 6.5 x $17.50 = $113.75

Revenue = $113.75 + $35.80. = $149.55

Joe's profit = $149.55 - $21.38 = $128.17

Loan balance = $250 - 128.17 = $121.83

Alternatively, the equation provided in the question can be used :

250 – 17.5(4 + 2.5) – (35.80 – 21.38)

250 - 113.75 - 14.42

= $121.83

4 0
3 years ago
Easy 10 points and brainliest :)
Llana [10]

Answer:

on the x-axis

Step-by-step explanation:

If x is less than 0, that means it's to the left of the origin, and if y = 0, then that means the point lies on the x-axis.  Hence, (x,y) is on the x-axis.

Cheers.

4 0
4 years ago
Need help ASAP PLEASE AND SHOW WORk DUE SOON !!!
zaharov [31]

Answer: Wrong formula, forgot to input the radius instead

Step-by-step explanation:

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3 0
3 years ago
Solve the system.
Alex777 [14]

Answer:

{x,y,z} = {-18,4,2}

Step-by-step explanation:

Solve equation [2] for the variable  x  

x = -10y + 2z + 18

Plug this in for variable  x  in equation [1]

(-10y+2z+18) + 9y + z = 20

- y + 3z = 2

Plug this in for variable  x  in equation [3]

 3•(-10y+2z+18) + 27y + 2z = 58

   - 3y + 8z = 4

Solve equation [1] for the variable  y  

 y = 3z - 2

Plug this in for variable  y  in equation [3]

  - 3•(3z-2) + 8z = 4

   - z = -2

Solve equation [3] for the variable  z  

 z = 2

By now we know this much :

 x = -10y+2z+18

   y = 3z-2

   z = 2

Use the  z  value to solve for  y  

 y = 3(2)-2 = 4

Use the  y  and  z  values to solve for  x  

 x = -10(4)+2(2)+18 = -18

6 0
3 years ago
How do you do #3 so I get the correct answer
Setler79 [48]

Answer:

150

Step-by-step explanation:

You have to mulitply all the three numbers together to find the area of the figure. But if it is permiter then you add it

5 0
3 years ago
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