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2 years ago

Brian buys a lawn ornament priced at $78. Shipping and handing are an additional 5% of the price. How much shipping and handing

will Brain pay?

Mathematics

1 answer:

olganol [36]2 years ago

6 0

$\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{5\% of 78}}{\left( \cfrac{5}{100} \right)78}\implies 3.9$

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Passes through ( -2,3) and ( 0,1) write an equation in slope intercept form

Liono4ka [1.6K]

Slope = (3 -1)/ (-2 -0)
slope = 2/-2
slope = -1

y intercept b = 1
so equation
y = -x + 1

answer
y = -x + 1

hope it helps

6 0

3 years ago

Assume the random variable x has a binomial distribution with the given probability of obtaining a success. Find the following.

borishaifa [10]

Answer:

P(x > 10) = 0.6981.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this question:

$n = 14, p = 0.8$

P(x>10)

$P(x > 10) = P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 11) = C_{14,11}.(0.8)^{11}.(0.2)^{3} = 0.2501$

$P(X = 12) = C_{14,12}.(0.8)^{12}.(0.2)^{2} = 0.2501$

$P(X = 13) = C_{14,13}.(0.8)^{13}.(0.2)^{1} = 0.1539$

$P(X = 14) = C_{14,14}.(0.8)^{14}.(0.2)^{0} = 0.0440$

$P(x > 10) = P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14) = 0.2501 + 0.2501 + 0.1539 + 0.0440 = 0.6981$

So P(x > 10) = 0.6981.

8 0

3 years ago

Write one hundred sixty-seven thousand, five hundred forty-five in standard notation.

Sliva [168]

Standard form is the words in numbers, so the answer is: **167,545**

5 0

3 years ago

Read 2 more answers

I need your help ASAP

bixtya [17]

Answer:

I dont have time for all of this

Step-by-step explanation:

3 0

3 years ago

Find the value of x-y if x=1000, y=10, and n=4

stiks02 [169]

Answer:

990

Step-by-step explanation:

So in this case, ignore the n=4 because the problem is not asking for that.

You know that x=100 and y=10, so:

x-y

is the same as

1000-10

then you solve and get

1000-10=990

hope this helped!

3 0

4 years ago