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
Kobotan [32]
3 years ago
8

Someone please help me I’m really struggling I will give brainliest

Mathematics
1 answer:
viktelen [127]3 years ago
8 0

Answer:

SA ≈ 1134 cm²

General Formulas and Concepts:

<u>Math</u>

  • Pi π = 3.14...

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Geometry</u>

  • Radius: r = d/2
  • Surface Area of a Sphere: SA = 4πr²

Step-by-step explanation:

<u>Step 1: Define</u>

d = 19 cm

<u>Step 2: Find </u><em><u>SA</u></em>

  1. Substitute [R]:                    r = 19 cm/2
  2. Divide:                                r = 9.5 cm
  3. Substitute [SAS]:               SA = 4π(9.5 cm)²
  4. Exponents:                        SA = 4π(90.25 cm²)
  5. Multiply:                             SA = 361π cm²
  6. Multiply:                             SA = 1134.11 cm²
  7. Round:                               SA ≈ 1134 cm²
You might be interested in
Paige DeMarco is the Vice President for University Advancement at State University. She is responsible for the capital campaign
Ainat [17]

Answer: It has systematic sampling.

Step-by-step explanation:

Systematic sample is a method of statistics which includes the selection of elements from the ordered sampling.

It has equal probability of  each element.

It is done by choosing the starting point and selecting other elements after fixing the systematic or periodic interval.

She randomly selects the sixth name as a starting point and then selects every 100th subsequent name (106, 206, 306, etc.)

So, Sixth name is the starting point and then choosing the other elements after fixing an interval of 6.

So, it has systematic sampling.

6 0
3 years ago
Compared to the graph of f(x)=x^2, the graph of g(x)=2x^2-5 is _____?
MissTica

Answer:

c. narrower and translated down

Step-by-step explanation:

4 0
3 years ago
Can someone plz help me
Colt1911 [192]

Answer:

x is less than or equal to negative 14.

Step-by-step explanation:

so for now we should pretend that the greater than or equal to is an equal sign, and simplify the problem to get x alone on a side

remove 5 from each side

-x/3=1/3-5

-x/3=14/3

multiply both sides by 3

-x=14

x=-14

so we can now replace the equal sign with the equal or greater to, so x is less than or equal to -14

4 0
3 years ago
Calculate the area of the irregular polygon shown below:
Vladimir79 [104]
The answer is C. 3×4 = 12. There are two therefore 50-24 = 26.
7 0
3 years ago
Read 2 more answers
Lines b and c are parallel.<br><br><br> What is the measure of 6?
astra-53 [7]
The measure of a supplement of an angel is 6 times the measurement of the complement angle.
5 0
4 years ago
Other questions:
  • Ben is paving a parking lot with the shapes shown.how can he find the area of the parking lot?
    13·1 answer
  • Which expression has a value that is equivalent to 5n + 13 when n=−5 ?
    6·1 answer
  • Please help you will get 20 points and explain your answer please
    10·2 answers
  • When you multiply a number by 4 and then subtract 7, the result is the same as if you first subtract 7 from the same number and
    8·1 answer
  • Mario earned three times as much money last year as his wife Elena. The total amount that the two earned was $11,000. How much m
    12·1 answer
  • I need the answer of these ten years
    14·1 answer
  • I really need help!
    13·1 answer
  • Hello ..........................................................
    11·2 answers
  • $50,000 for 6 months at 7% simple interest
    13·2 answers
  • Spencer has a bank account with a balance of $75.00. Spencer owes $30.00 to her credit card and she owes $50.00 for a LCD TV. Wh
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!