sketch nine points.Then,connect the points to form a closed plane figure.What kind of polygon did you draw

Answers

Answer 1

Answer: Spread of Islam in West Africa (part 1 of 3): The Empire of Ghana .... The great citiesof Islamic learning like Timbuktu and Jenne came under his ... Sunni 'Ali may becompared with Sundiata of Mali, and Askiya Muhammad ... Sudan and relations wereestablished with the Arab world in the Middle East and the Maghrib.

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Plz help me get the right answer to these

Answers

-8(-4) + y = 37

32 + y = 37

y = 5

when x = -4, y = 5

if -4 is the value for x, you would multiply -8 by -4
this should get you positive 32 because - and - equals a positive
now you have
32 + y =37
subtract 32 from both sides to get
y=5
hope this helped

Let f(x)=2/x-3. Find f^-1(x)

Answers

Answer:

Two questions:

Question 1: $f^(-1)(x)=?$ given $f(x)=(2)/(x)-3$ .

Answer 1: $f^(-1)(x)=(2)/(x+3)$

Question 2: $f^(-1)(x)=?$ given $f(x)=(2)/(x-3)$ .

Answer 2: $f^(-1)(x)=(2)/(x)+3$

Step-by-step explanation:

So $f^(-1)$ is used in most classes to represent the inverse function of $f$ .

The inverse when graphed is a reflection through the y=x line. The ordered pairs $(a,b)$ on $f$ implies $(b,a)$ are on $f^(-1)$ .

This means we really just need to swap x and y.

Since we want to write as a function of x we will need to solve for y again.

Question 1:

$y=(2)/(x)-3$

Swap x and y:

$x=(2)/(y)-3$

We want to solve for y.

Add 3 on both sides:

$x+3=(2)/(y)$

Make the left hand side a fraction so we can cross-multiply:

$(x+3)/(1)=(2)/(y)$

Cross multiply:

$y(x+3)=1(2)$

Simplify right hand side:

$y(x+3)=2$

Divide both sides by (x+3):

$y=(2)/(x+3)$

So $f^(-1)(x)=(2)/(x+3)$ .

Question 2:

$y=(2)/(x-3)$

Swap x and y:

$x=(2)/(y-3)$

Make left hand side a fraction so we can cross multiply:

$(x)/(1)=(2)/(y-3)$

Cross multiply:

$(y-3)x=1(2)$

We have to distribute here:

$yx-3x=2$

Add 3x on both sides:

$yx=2+3x$

Divide boht sides by x:

$y=(2+3x)/(x)$

You could probably stop here but you could also simplify a little.

Separate the fraction into two terms since you have 2 terms on top bottom being dividing by x:

$y=(2)/(x)+(3x)/(x)$

Simplify second fraction x/x=1:

$y=(2)/(x)+3$

So $f^(-1)(x)=(2)/(x)+3$ .

Destiny is doing a science fair project about ant population growth. She has a very young ant colony, and to estimate the population, she captures 25 ants and marks them with special paint. Destiny then releases them into the colony, waits a few days, and then captures 240 ants. She notices that 10 of these ants are marked. To the nearest whole number, what is the best estimate for the ant population?

Answers

Answer:resume

Step-by-step explanation:

step by step u measure

Resume because you have to do step by step

In a stairway, the slope of the handrail is the ratio of the riser to the tread. If the tread is 12 inches long and the riser is 8 inches long, find the slope.(image)

a.
2/5
c.
2/3
b.
3/2
d.
5/2

Answers

The slope of the handrail is 2/3. The correct answer is: c. 2/3

To find the slope of the handrail, we can use the given information that the slope is the ratio of the riser to the tread.

Slope = Riser / Tread

Given that the tread is 12 inches long (Tread = 12 inches) and the riser is 8 inches long (Riser = 8 inches), we can substitute these values into the formula:

Slope = 8 inches / 12 inches

Now, we can simplify the ratio:

Slope = 2/3

So, the slope of the handrail is 2/3. The correct answer is:

c. 2/3

To know more about slope here

brainly.com/question/16949303

#SPJ2

C. 2/3 (8/12 simplified is 2/3)

HELP ME PLEASE I BEG YOU I REALLY NEED WITH THESE QUESTIONS!!!!!!!!

Answers

I posted an image instead.

Solve the inequality

Answers

Answer:

$\large\boxed{x>-25}$

Step-by-step explanation:

$-(3)/(10)x-7<(1)/(2)\qquad\text{multiply both sides by 10}\n\n10\!\!\!\!\!\diagup^1\cdot\left(-(3)/(10\!\!\!\!\!\diagup_1)x\right)-(10)(7)<10\!\!\!\!\!\diagup^5\cdot(1)/(2\!\!\!\!\diagup_1)\n\n-3x-70<5\qquad\text{add 70 to both sides}\n\n-3x<75\qquad\text{change the signs}\n\n3x>-75\qquad\text{divide both sides by 3}\n\nx>-25$

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