1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
deff fn [24]
3 years ago
12

Need help with this also plz asap

Mathematics
2 answers:
IRISSAK [1]3 years ago
8 0

Try it randomly idk<em>, sorry I couldn’t help</em>

Bas_tet [7]3 years ago
8 0

For this case, we must expand the series for each value of "n". That is to say:2 ^ {(1) -2} +2 ^ {(2) -2} +2 ^ {(3) -2} +2 ^ {(4) -2} +2 ^ {(5) -2} =

We have that equal signs are added and the same sign is placed, while different signs are subtracted and the sign of the major is placed:

2 ^ {1-2} + 2 ^ {2-2} + 2 ^ {3-2} + 2 ^ {4-2} + 2 ^ {5-2} =

2 ^ {-1} + 2^{0}+ 2^{1} + 2^{2} + 2^{3}=

By definition of power properties we have to:

a ^ {-1} = \frac {1} {a}\\a ^ 0 = 1

So:

\frac {1} {2} + 1 + 2 + 4 + 8 =

We find the common denominator:

\frac {1} {2} + 1 * \frac {2} {2} + 2 * \frac {2} {2} + 4 * \frac {2} {2} + 8 * \frac {2} { 2} =\\\frac {1 + 2 + 4 + 8 + 16} {2} =\\\frac {31} {2} =\\15.5

Answer:

Option B

You might be interested in
What is the greatest to least -1, 3/2, 2.5, 0, -1/2, 2, 0.2
zlopas [31]

Answer: 2.5, 2, 3/2, 0.2, 0, -1/2, -1

Step-by-step explanation:

From left to right biggest number

5 0
3 years ago
You have 2/3 of sugar how muck sugar will you use if you makes 6 batches of cookies
zalisa [80]

Answer:

4

Step-by-step explanation:

1 batch = 2/3

so 6 batches = 2/3 * 6

and 2/3 *6 = 4 !

4 0
3 years ago
I need help with this work
STatiana [176]

Answer:

G. 245.04cm²

Step-by-step explanation:

The shortest way to solve this problem would be:

total surface area = 2 * π * r² + (2 * π * r) * h

or

total surface area = 2 * π * r * (r + h).

Diameter = 6

Radius = 3

Height = 10

The radius is half the diameter

TSA = Total surface area

TSA = 2 π 3(3+10)

TSA = (2)(3.141593)(3)(3+10)

TSA = (6.283185)(3)(3+10)

TSA = 18.849556(3+10)

TSA = (18.849556)(13)

TSA = 245.044227

TSA = 245.04

Or you could do the longer way, which would be:

Step 1: Find the surface area of the curved part of the cylinder

Surface Area (Curved) = 2 x π x Radius x Height

Step 2: Find the surface area of the two ends of the cylinder

Surface Area (Ends) = 2 x π x Radius²

Step 3: Add the surface are of the curved part to the surface area of the ends

Surface Area (Total) = Surface Area (Curved) + Surface Area (Ends)

For the cylinder in the picture:

A cylinder has a height of 10 and a diameter of 6

Hence, Radius = d/2 = 6/2 = 3 cm

Surface Area (Curved) = 2 x pi x 3 x 10

Surface Area (Curved) = 188.495559

Surface Area (Ends) = 2 x pi x 3²

Surface Area (Ends) = 2 x pi x 25

Surface Area (Ends) = 56.548668

Surface Area (Total) = 245.044227

245.04 is the result of rounding 245.044227 to the nearest hundredth

7 0
2 years ago
What is (4c-d+0.2)^2-10c; c=3.1, d=4.6​
yuradex [85]

Good evening ,

______

Answer:

(4c-d+0.2)² - 10c = 33

___________________

Step-by-step explanation:

(4c-d+0.2)^2-10c

c=3.1, d=4.6​

(4(3.1) - 4.6 + 0.2)² - 10(3.1) = (12.4 - 4.6 + 0.2)² - 31 = (7.8 + 0.2)² -31 = 8² - 31 = 64-31 =33.

:)

8 0
3 years ago
Read 2 more answers
CAN SOMEONE HELP ME WITH THISSSS
Semmy [17]

Answer:

no i cannot

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • A relative frequency table is made from data in a frequency table. Relative Frequency Table: A 4-column table with 3 rows. The f
    13·2 answers
  • You roll an 10-sided fair die. What is the probability that you roll a 7?
    9·2 answers
  • Altitude of mountain climber is 4572 and altitude of submarine commander is -609. What is the the difference in their altitude
    6·1 answer
  • I don't know if it's the right answer
    8·1 answer
  • How many ways can teacher arrange 4 students in front row of class with 30 students
    7·2 answers
  • Solve the equation 3x+5y=16 for y
    14·2 answers
  • 15 points per answer! tysm! &lt;3 Ben and Wendy love to go out for dinner! Can you blame them? Ben’s family went to his favourit
    9·1 answer
  • Help is very much appreciated thank you!!!
    10·1 answer
  • Find the volume of the irregular figure 1cm 2cm 8cm 1cm 3x 3pm 5cm
    14·1 answer
  • Mrs. Galicia has a cupcake company. The amount of money earned is represented by
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!