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butalik [34]
3 years ago
13

Find the two square roots of 81

Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0
9 is one of them I think
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The average number of claims per hour made to an insurance company is 3.
solong [7]

Step-by-step explanation:

We have it that x follows a poisson distribution.

λ is equal to 3

The poisson distribution is given by:

P(x) = e^-λ * λ^X/X!

λ = 3

X = 4

A. The question had already given us the X value to be 4

p(x = 4)

= e^-3 x 3⁴/4!

= e^-3 = 0.001

3⁴= 34

4! = 81

putting all values into p(x=4)

= .001x81/24

= 0.1680

b. for 3 good hours, we will have lamda to be;

3x3 = 9

p(x = 6)

= e^-9 * 9⁶/6!

= 0.0911

5 0
2 years ago
Someone please help me I’m really struggling <br> I will give brainliest
viktelen [127]

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
8 0
3 years ago
The graph of g(x) is a transformation of the graph of f(x)=4x .
Alenkasestr [34]

Answer:

g(x) = 4^x + 1.

Step-by-step explanation:

The graph of f(x) = 4^x  passes through the point (0, 1) because when x = 0, 4*0 = 1. Also when x = 1,  4^x=  4.  So it passes through (1, 4).

For g(x) we have corresponding points (0, 2) and (1, 5).

So we see that g(x) is a similar graph but it has been translated up 1 unit.

7 0
3 years ago
Read 2 more answers
SOLVE. integration of (1-v) /(1+v^2)
Marta_Voda [28]
I think you have to first separate the integral:1/(1+v^2) + v/(1+v^2),
so the integral of the first term is ArcTan (v) and for the integral of the second term i recommend you to do a change of variable:

y= 1+v^2
 so
 dy= 2v
 and
v= dy/2and then you substitute:v/(1+v^2) = (1/2)(dy/y)
and the integral is
 (1/2) (In y)finally you plug in the initial variables:

(1/2)(In [1+v^2])

so the total integral is:

ArcTan (y) + (1/2)(In [1+v^2])
6 0
3 years ago
Read 2 more answers
Given 7x + 2 ≥ 58, which number is not in the solution set?
Natasha_Volkova [10]

Answer:

i can't see the rest of the question so i don't know the answer choices but:

since x≥8

whichever choice is less than 8 is incorrect

step-by-step explanation:

i can't see the rest of the question so i don't know the answer choices but:

7x≥56

x≥8

4 0
3 years ago
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