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marusya05 [52]
3 years ago
9

Help pleaseeeeeeeeeeeeeeeee

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
6 0

Answer:

D(- 1) = 2

Step-by-step explanation:

To evaluate D(- 1), substitute x = - 1 into D(x) , that is

D(- 1) = (- 1)² - 2(- 1) - 1 = 1 + 2 - 1 = 2

loris [4]3 years ago
5 0

Answer:

2

Step-by-step explanation:

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a right prism with a base perimeter of 9 units a height of 5 units and a total base of 16 square units has a surface area of how
slava [35]
The answer is 80 because of 16 times 5 that's how you get your answer
 
hope this helps :)

4 0
3 years ago
2(3/5x+3) - (2/3x-1)
motikmotik

6x/5 + 7 + -2x/3

Step-by-step explanation:

i just put it in google lol

3 0
2 years ago
Galen sold tickets for his church’s carnival for a total of $2,820. Children’s tickets cost $3 each and adult tickets cost $5 ea
Veronika [31]

Answer:

a = 195 ; c = 615

Step-by-step explanation:

So, you want to start by forming your equations...

I will use 'c' for children and 'a' for adults for my variables

3a + 30 = c  

(this is because of the info that 30 more tickets than 3 times the amount of children's were sold than adult)

then for equation 2:

3c + 5a = 2820

(this is because of the prices of the tickets and the total money raised)

Then, plug in the equation for c

Your equation should look like:

3(3a + 30) + 5a = 2820

You get:

(9a +90) + 5a = 2820

Then:

14a = 2730

So:

a = 195 adult tickets sold

Plug in a, to find c:

3 (195) + 30 = c

585 + 30 = c

c = 615 children tickets sold

4 0
2 years ago
Help me pleaseeeeeee
ivolga24 [154]

Answer:

B

it's a recurring number therefore it's irrational

6 0
3 years ago
Read 2 more answers
The population of a town is 16,519 people. Each year the population increases by 4%. What will the town’s population be in 15 ye
snow_tiger [21]

Answer:

  29,750

Step-by-step explanation:

Each year the population is multiplied by 100% + 4% = 1.04. We want to repeat that multiplication 15 times, once for each of the 15 years. An exponent is what we use to signify (and compute) repeated multiplication. The population will be ...

  16,519 × 1.04^15 ≈ 29749.8 ≈ 29,750

4 0
2 years ago
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