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Archy [21]
3 years ago
7

Need help on this question

Mathematics
2 answers:
frutty [35]3 years ago
8 0
D, the last answer choice
aleksandrvk [35]3 years ago
5 0

Answer:

f(-1)=6

Step-by-step explanation:

You might be interested in
Which expression is equivalent to 4.8 – 2.2w + 1.4w – 2.4 ?
Vlad1618 [11]

Answer:

B) 0.4 (6 - 2w)

Step-by-step explanation:

You can only add or subtract with the numbers that have the same variable:

You can only add -2.2w and 1.4w

Which is -0.8w

Then add 4.8 and -2.4

Which is 2.4

Now the equation is -0.8w+2.4 or 2.4-0.8w

0.4 times 6 is 2.4

0.4 times 2w is -0.8w

Which is the same

-0.8w+2.4 or 2.4-0.8w

Hope this helps!

6 0
2 years ago
What is the greatest common divisor of 54 36 and 24
77julia77 [94]
I believe the greatest common divisor would be 6.

hope this helps you! :-)
8 0
3 years ago
Maria has 64 flowers she makes 8 bouquets with the flowers how many bouquets of flowers will she have if she has 80 flowers
Pepsi [2]
The ratio of flowers to bouquets is

64:8

With 80 flowers, the ratio would be

80:x

so...

64:8 divide each by 8 to get 8:1

multiply each by 10 to get

80:10

10 bouquets
8 0
3 years ago
Read 2 more answers
Plz help me, thank you
Kruka [31]

Answer:

P=40(1.03526)^{t}

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

P=P_o(1+r)^{t}

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:

2P_o=P_o(1+r)^{20}

Simplifying:

(1+r)^{20}=2

Solving for 1+r:

1+r=\sqrt[20]{2}

1+r=1.03526

The exponential function that models the situation is:

\mathbf{P=40(1.03526)^{t}}

4 0
3 years ago
Find out the Range coefficient of the range
Alex777 [14]

Answer:

0.4494

Step-by-step explanation:

Given :

marks number of students

20-29 8

30-39 12

40-49 20

50-59 7

60-69 3​

The range Coefficient is obtained thus :

Range Coefficient = (Xm - Xl) / (Xm + Xl)

Where ;

Xm = Mid value of highest class = (60+69)/2 = 64.5

Xl = Mid value of lowest class = (20+29)/2 = 24.5

Range Coefficient = (64.5 - 24.5) / (64.5 + 24.5)

Range Coefficient = 40 / 89 = 0.4494

7 0
3 years ago
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