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Gnesinka [82]
3 years ago
14

Evaluate the expression for b = 5 4b^2​

Mathematics
1 answer:
Alex17521 [72]3 years ago
5 0

Answer: 100

Step-by-step explanation:

Sub in 5 for b in the expression

4b^2\\4(5)^2

You must do the exponent first as it comes before multiplication in the order of operations

4(5)^2\\4(25)

Now multiply

4(25)\\100

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A point has zero dimension. True or False?
djverab [1.8K]

Answer:

True

Step-by-step explanation:

A point is zero-dimensional with respect to the covering dimension because every open cover of the space has a refinement consisting of a single open set.

7 0
3 years ago
Read 2 more answers
1) 5.10-2.8.16. 10-1
const2013 [10]

Answer: -2511 (if the periods mean multiplication)

Step-by-step explanation:

I’m not sure whether you’re trying to have the periods be multiplication, but if that’s what they are, this is the answer

5x10-2x8x16x10-1

50-16x160-1

50-2560-1

-2511

Again, I’m not sure if that’s what you mean but I can’t really see what else they would mean since you can’t have a 3 part decimal

5 0
3 years ago
Can someone help with this please
crimeas [40]

Answer:

x2  1-

Step-by-step explanation:

3 0
3 years ago
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one night a theater sold 548 movie tickets. an adult’s costs $6.50 an child’s cost $3.50. in all, $2,881 was takin in. how many
gavmur [86]

Answer:

  • 321 adult tickets
  • 227 child tickets

Step-by-step explanation:

This sort of problem is easily solved by defining a variable to be the quantity of the higher-value contributor. Here, we can let x represent the number of adult tickets. Then total revenue is ...

  6.50x +3.50(548-x) = 2881

  3x +1918 = 2881 . . . . . . . . . . . . eliminate parentheses, collect terms

  3x = 963 . . . . . . . . . . . . . . . . . . subtract 1918

  x = 321 . . . . . . . . . . . . . . . . . . . . divide by 3

  548-x = 548 -321 = 227 . . . . . .number of child tickets

321 adult tickets and 227 child tickets were sold.

3 0
3 years ago
yul has lunch at a restaurant. If his bill is 14.50 and yul wants to leave 20% tip, what is the amount he should leave for the t
kodGreya [7K]
If you would like to know what is the amount of money Yul should leave for the tip, you can calculate this using the following steps:

20% of $14.50 = 20% * 14.50 = 20/100 * 14.50 = $2.9

Result: Yul should leave $2.9 for the tip.
6 0
3 years ago
Read 2 more answers
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