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vagabundo [1.1K]
3 years ago
7

Evaluate the expression when x=2 . -3x+1.5+2.5x-4.5+8x

Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Answer: 12

Step-by-step explanation:

For this problem, all you have to do is plug in x=2 into all the x you see.

-3(2)+1.5+2.5(2)-4.5+8(2)

-6+1.5+5-4.5+16=12

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Find the common ratio and the next term for the sequence shown. Express your answers as fractions or as decimals.
Cerrena [4.2K]
The common ratio of the sequence is calculated by dividing the second term by the first term or dividing the third term by the second term. That is,
                               r = 250 / 333 = 0.75
or                            r = 187 / 250 = 0.748 = 0.75
To get the next term, we multiply 187 by 0.75 giving us an answer of 140.25 or 141. 
7 0
3 years ago
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decide if the following change is an increase or decrease. then determine the percent of change. 48 inches to 30 inches
Wewaii [24]
48 inches to 30 inches is a decrease.
percent decrease = change/original value x 100%
= (48 - 30)/48 x 100%
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3 0
3 years ago
27 + (8-5) -am looking for the answer of number 7
Rasek [7]

Answer:

The answer to the equation from question 7 is 14.

Step-by-step explanation:

In question 7, we are given an equation.

2³ + (8 - 5)² - 3

First, subtract 5 from 8 in the parentheses.

2³ + 3² - 3

Next, solve the exponents for 2³ and 3².

8 + 9 - 3

Add 8 to 9.

17 - 3

Subtract 3 from 17.

14

So, the answer to this equation from question 7 is 14.

4 0
3 years ago
A culture of bacteria has an initial population of 8600 bacteria and doubles every 5 hours. Using the formula P_t = P_0\cdot 2^{
Fiesta28 [93]
I have no idea what the question is
6 0
2 years ago
What is the solution of <br>3b² = 27<br>c² + 9 = 9​
Papessa [141]

Answer:

Step-by-step explanation:whole divide it

3b^=27

b^=27/3

b^=9

take squre roote

b=3

c^

4 0
3 years ago
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