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:

Math

Pi π = 3.14...

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

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

Step-by-step explanation:

Step 1: Define

d = 19 cm

Step 2: Find SA

Substitute [R]: r = 19 cm/2
Divide: r = 9.5 cm
Substitute [SAS]: SA = 4π(9.5 cm)²
Exponents: SA = 4π(90.25 cm²)
Multiply: SA = 361π cm²
Multiply: SA = 1134.11 cm²
Round: SA ≈ 1134 cm²

You might be interested in

Help this is my exit ticket HURRY LOTS OF POINTS

lisov135 [29]

Answer:

The answer for this question ( ur exit ticket ) is C .

6 0

2 years ago

Read 2 more answers

A test consists of 20 problems and students are told to answer any 10 of these questions. In how many different ways can they ch

Furkat [3]

We must find UNIQUE combinations because choosing a,b,c,d... is the same as d,c,b,a...etc. For this type of problem you use the "n choose k" formula...

n!/(k!(n-k)!), n=total number of choices available, k=number of choices made..

In this case:

20!/(10!(20-10)!)

20!/(10!*10!)

184756

3 0

3 years ago

Read 2 more answers

Please answer this question:)

kogti [31]

Answer:

your answer will be A. 38.5°

Step-by-step explanation:

m<ZYW=1/2(77)

=38.5

hope it helps..