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2 years ago

Plsssssssssss just helppppp

Mathematics

1 answer:

yan [13]2 years ago

3 0

Answer:

Step-by-step explanation:

The missing length is 10-4 = 6

Therefore perimeter = 5 + 6 + 8+ 4+13 +10

=46

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Kimberly uses 6.7 pints of blue paint in white paint to paint her bedroom walls 3/5 of this amount is blue paint and the rest is

Elodia [21]

Answer:

2.68 pints

Step-by-step explanation:

The fraction of white paint is 1 -3/5 = 2/5, so the quantity of white paint is ...

(2/5)(6.7 pints) = 2.68 pints

Kimberly used 2.68 pints of white paint.

5 0

2 years ago

B. Write the following in exponential notation.then identity the base and the exponent.

Alchen [17]

Answer:

1. $8^5$ , base is 8 and exponent is 5

2. $(-1)^7$ , the base is -1 and the exponent is 7

3. -2 * $a^3$ , the base is a and the exponent is 3

8 0

2 years ago

Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

kirill [66]

Answer:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve each system of equations by showing the process of substitution.

bekas [8.4K]

Answer:

A. {x,y}={-2,-3}

// Solve equation [2] for the variable x

[2] x = 2y + 4

// Plug this in for variable x in equation [1]

[1] (2y+4) - y = 1

[1] y = -3

// Solve equation [1] for the variable y

[1] y = - 3

// By now we know this much :

x = 2y+4

y = -3

// Use the y value to solve for x

x = 2(-3)+4 = -2

B. [1] 3x=3y-6

[2] y=x+2

Equations Simplified or Rearranged :

[1] 3x - 3y = -6

[2] -x + y = 2

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 2

// Plug this in for variable y in equation [1]

[1] 3x - 3•(x +2) = -6

[1] 0 = 0 => Infinitely many solutions

C.Step by Step Solution

More Icon

System of Linear Equations entered :

[1] 4x - y = 2

[2] 8x - 2y = 4

Solve by Substitution :

// Solve equation [1] for the variable y

[1] y = 4x - 2

// Plug this in for variable y in equation [2]

[2] 8x - 2•(4x-2) = 4

[2] 0 = 0 => Infinitely many solutions

3 0

1 year ago

Read 2 more answers

Children arrive at a house to do Halloween trick-or- treating according to a Poisson process at the unlucky rate of 13/hour. Wha

Art [367]

Answer:

0.4204 probability, option b.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

Children arrive at a house to do Halloween trick-or- treating according to a Poisson process at the unlucky rate of 13/hour

13 arrivals during an hour, which means that the mean time between arrivals, in minutes is of $\mu = \frac{13}{60} = 0.2167$

What is the probability that the time between the 15th and 16th arrivals will be more than 4 minutes ?

This is P(X > 4). So

$P(X > 4) = e^{-0.2167*4} = 0.4204$

So the correct answer is given by option b.

3 0

2 years ago