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3 years ago

Please answer! It’s not 100 so pleaseeeee Marking Brainliest

Mathematics

2 answers:

Serga [27]3 years ago

7 0

Answer:

When working with percents, don't divide them, because it will give you the wrong answer. So you must find the equivalent of the percent you're working with in decimal form, then multiply it by your number.

So, you would do 550 X .24 which equals 132 customers.

Step-By-Step-Solution

olganol [36]3 years ago

3 0

Answer:

132 customers

Step-by-step explanation:

Twenty-four (24) percent of 550 comes out to:

0.24(550 customers) = 132 customers

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Please help with question 2

Rufina [12.5K]

I would distribute first.

$-5-3x\geq 2(10+2x)+3$

$-5-3x\geq 20+4x+3$

$-5-3x\geq 4x+23$

$7x \leq -28$

$x\leq -4$

Hope this helps.

頑張って!

6 0

3 years ago

Determine the mean and variance of the random variable with the following probability mass function. f(x) = (216/43)(1/6)^x, x =

anzhelika [568]

Answer:

The mean of function provided is 1.186.

The variance of the provided f(x) is 0.198

Step-by-step explanation:

It is provided that the probability mass function is,

f(x)= (214/43)×(1/6)ˣ; x=1,2,3

The mean is calculated as,

E(X)=∑ x × f(x)

=1×(216/43)×(1/6)¹ + 2 × (216/43)×(1/6)² × 3 × (216/43)×(1/6)³

=36/43 + 12/43 +3/43

=1.186

The mean of function provided is 1.186

Explanation | Common mistakes | Hint for next step

The expected value of the probability mass function,f(x)= (216/43×(1/6)ˣ

is 1.1861.186 .

Step 2 of 2

To calculate the variance, first calculate E(X²)=∑ x² × f(x)

= 1² ×(216/43) × (1/6)¹ + 2² × (216/43) × (1/6)² × 3² × (216/43) ×(1/6)³

=36/43 +24/43 +9/43

=1.605

The variance is calculated as,

V(X) =E(X²) - [E(X)]²

=1.605 -(1.186)²

= 0.198

The variance of the provided f(x) is 0.198

Explanation | Common mistakes

The variance of function f(x)=(216/43) × (1/6)ˣ ; x =1,2,3 is 0.198

3 0

3 years ago

The graph shows the value of a certain model of car compared with its age. Which statement is false?

uranmaximum [27]

Answer: Choice B

===================================

A more in depth look

Choice A is true because the points are going downward as you read from left to right. The points aren't all on the same line but they are close to one. We can cross choice A off the list.

Choice B is false. So this is the answer. The fact that the points are close to the same line indicates that the r value is close to -1 rather than 0. If the points were randomly scattered about, or if they fell on a curve such as a parabola, then the linear correlation coefficient r would be (closer to) zero.

Choice C is true. The explanatory variable is the independent variable x. We can cross choice C off the list.

Choice D is true. The points are fairly close to the same straight line. It's not perfect but it's good enough. We can cross choice D off the list.

4 0

3 years ago

Read 2 more answers

A line that intersects a circle at two<br> points is a(n)______<br> of the circle.

Brut [27]

Answer:

secant

Step-by-step explanation:

A secant is a line that intersects a circle in exactly two points.

8 0

3 years ago

How is writing expressions with variables and numbers similar to writing expressions using words?

Vladimir79 [104]

Answer: Similarly, when we describe an expression in words that includes a variable, we're describing an algebraic expression (an expression with a variable). One of the many reasons is that math is more precise and easier to work with than words are.

Step-by-step explanation:

3 0

3 years ago