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3 years ago

Question 2 What percent is shaded green? Type your answer on the line. *

Mathematics

1 answer:

bekas [8.4K]3 years ago

6 0

Answer:

14 % you just gotta count the green boxes and make it a percentage

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For all values of x, f(x) = 2x - 6 and g(x) = x2 + 2 a) Find g(3) b) Find fg(3)

Stels [109]

A is 11 and b is 16. for b you would plug in what you got for a for x

4 0

2 years ago

You are designing a rectangular poster to contain 7575 in2 of printing with a 33-in margin at the top and bottom and a 11-in m

erma4kov [3.2K]

Answer:

The dimensions of the rectangular poster is 15 in by 5 in.

Step-by-step explanation:

Given that, the area of the rectangular poster is 75 in².

Let the length of the rectangular poster be x and the width of the rectangular poster be y.

The area of the poster = xy in².

$\therefore xy=75$

$\Rightarrow y=\frac{75}{x}$ ....(1)

1 in margin at each sides and 3 in margin at top and bottom.

Then the length of printing space is= (x-2.3) in

=(x-6) in

The width of printing space is = (y-2.1) in

=(y-2) in

The area of the printing space is A =(x-6)(y-2) in²

∴ A =(x-6)(y-2)

Putting the value of y

$\Rightarrow A =(x-6)(\frac{75}{x}-2)$

$\Rightarrow A = 87-\frac{450}{x}-2x$

Differentiating with respect to x

$A '= \frac{450}{x^2}-2$

Again differentiating with respect to x

$A''=-\frac{900}{x^3}$

To find the minimum area of printing space, we set A' = 0

$\therefore \frac{450}{x^2}-2=0$

$\Rightarrow 450 =2x^2$

$\Rightarrow x^2=225$

$\Rightarrow x=\pm 15$

Now putting x=±15 in A''

$A''|_{x=15}=-\frac{900}{15^3}$

$A''|_{x=-15}=-\frac{900}{(-15)^3}=\frac{900}{(15)^3}>0$

Since at x=15 , A"<0 Therefore at x=15 , the area will be minimize.

From (1) we get

$y=\frac{75}{x}$

Putting the value of x

$y=\frac{75}{15}$

=5 in

The dimensions of the rectangular poster is 15 in by 5 in.

4 0

3 years ago

Please help practice Questions! will give thanks and star ratings (Question is attached)

zzz [600]

Second one second column

3 0

3 years ago

Read 2 more answers

Where does the line y = 3x + 5 cross the y-axis?

crimeas [40]

C: at y=5

The formula is y=mx+b (b meaning the y-intercept) so that +5 is where your y-intercept is gonna be!

7 0

3 years ago

HURRY PLEASE what's the answer? A B C D

Zarrin [17]

Answer:

x ≤ -11.25 or x > -8.75

Step-by-step explanation:

The graph here shows a disjunction compound inequality, in which either of the statements is true. That is for the compound inequality to be true, either one or the other statement is true. The word "OR" is used in stating this inequality.

On the graph, the directed line to our left has a full circle which starts at -11.25.

This means x ≤ -11.25.

The other directed line to our right has an empty circle, and starts at -8.75.

This means x > -8.75.

✅The compound inequality representing the graph will be written as:

x ≤ -11.25 or x > -8.75

3 0

2 years ago