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2 years ago

Given the function f(x) = 2/3 * x - 5 , evaluate f(9)

Mathematics

2 answers:

ch4aika [34]2 years ago

5 0

Answer:

Step-by-step explanation:

Natasha_Volkova [10]2 years ago

5 0

Answer:

Step-by-step explanation:

I used a calc lol

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A store has shirts on display. Seven of the shirts are red. There are 5 more blue shirts than green shirts. There are 2 fewer ye

Nady [450]

Answer: green shirts = 6

Blue shirts = 11

Yellow shirts = 4

Red shirts = 7

Step-by-step explanation:

Red shirts = 7

Let green shirts be x.

There are 5 more blue shirts than green shirts. This means:

Blue shirts = x + 5

There are 2 fewer yellow shirts than green shirts. This means:

Yellow shirts = x - 2

There are 28 shirts in total

Red + blue + yellow + green = 28

7 + (x + 5) + (x - 2) + x = 28

7 + x + 5 + x - 2 + x = 28

10 + 3x = 28

3x = 28 - 10

3x = 18

x = 18/3

x = 6

There are 6 green shirts

Blue shirts = x + 5 = 6 + 5 = 11

Yellow shirts = x - 2 = 6 - 2 = 4

Red shirts = 7

4 0

2 years ago

Solve for x sim b (10, 0.75) for x = 5

Aleksandr-060686 [28]

The value of $x \sim B (10, 0.75)$ for x = 5 is 0.06

<h3>How to solve the probability?</h3>

The expression is given as:

$x \sim B (10, 0.75)$

This means that:

n = 10

p = 0.75

The probability is then calculated as

$P(x)= ^nC_x * p^x *(1 - p)^{n-x$

This gives

$P(5)= ^{10}C_5 * 0.75^5 *(1 - 0.75)^5$

Evaluate the combination expression

$P(5)= 252 * 0.75^5 *0.25^5$

Evaluate

P(5)= 0.06

Hence, the value of $x \sim B (10, 0.75)$ for x = 5 is 0.06

Read more about probability at:

brainly.com/question/24756209

#SPJ1

6 0

1 year ago

Which formula shows a joint variation?

djyliett [7]

The answer is the first option: I, II and III.

The explanation is shown below:

1. By definition, there is a joint variation when a variable depends on two or more different variables. Therefore, you can express it as following:

$y=kxz$

Where $x,y$ and $z$ are the variables and $k$ is the constant of proportionality.

As you can see, $y$ is directly proportional to $x$ and $z$ .

2. Keeping the information above, you have:

I) $V=lwh$ ( $V$ varies jointly with $l$ , $w$ and $h$ .

II) $V=\frac{1}{3}r^{2}h\pi$ (If $\frac{\pi}{3}$ is the constant of proportionality, $V$ varies jointly with $r^{2}$ and $h$ ).

III) $V=Bh$ ( $V$ varies jointly with $B$ and $h$ .

8 0

3 years ago

Read 2 more answers

A small tile balcony is shown . Each tile is 9 square inches .what is the area of the shaded section in square inches

DochEvi [55]

The answer to this is D. 180 square inches.

The area formula for rectangles: b*h

The base is 5 tiles.

The height is 4 tiles.

4*5=20.

Since each tile is 9 square inches, 20*9=180.

Hope this helps!

7 0

2 years ago

Please name all of the property of multiplication for 4*(-3)*5

PIT_PIT [208]

Answer:

Step-by-step explanation:

You can multiply -3 by 4 and then multiply the result of that by 5, or you could write -3, 4 and 5 in other orders (6 possible orders) and obtain the same result.

I would multiply (-3) by 4, obtaining -12, and then multiply this -12 by 5, obtaining -60. But I could also multiply 5 by 4, obtaining 20, and then multiply this 20 by -3, obtaining the same -60.

What I have described here are the commutative and associative properties of multiplication.

6 0

2 years ago