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3 years ago

How to find the area of irregular figures

1 answer:

3 0

Instead, break down the shape into rectangles. Next, calculate the area of both rectangles and add them together. The area of the first rectangle is 72 square centimeters and the area of the second rectangle is 50 square centimeters. Together there are 72 + 50 = 122 square centimeters.

That is how u find a irregular figure..hope this help u

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Jean is trying to read her grocery receipt , but it is blurry . the sales tax rate was 7.75% . she pays tax only on the Items la

Margaret [11]

$12.79+$3.39=$16.18
$16.18+7.75% tax is $1.253

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3 years ago

Maths Trigonometry Question 100 points up for grabs! Will give brainliest to whoever answers

Gekata [30.6K]

Answer:

14) 21.136505024965 m

15) 43.076759215619 km

Step-by-step explanation:

14)

let h be the height of the lighthouse:

tan(41.3) = 18.7/h

Then

h = 18.7÷tan(41.5)

= 21.136505024965 m

………………………………………

15)

90-71.4 =18.6

Let s be the distance that the plane flew

towards the south:

tan(90 - 71.4) = s/128

Then

tan(18.6) = s/128

Then

s = tan(18.6)×128

= 43.076759215619 km

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2 years ago

Read 2 more answers

List the perfect cubes between 1,000 and 3,000 that are odd

Bogdan [553]

1331 and 2197 is your Answer

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3 years ago

Deminsions of a swedish flag in inches

Tanya [424]

Answer: 24.75 x 1.5 x 1.5 inches

Step-by-step explanation: Hope this helps!

8 0

3 years ago

1)Why is it impossible for a function to have fewer values in its domain than in its range?

Aneli [31]

Part (1):

For a relation to be called a function, each input must have one and only one corresponding output.

Now, we know that the input of the relation is known as its domain while the output is known as its range.

Based on the above definition, each input (value from domain) has only one output (value from range)

Therefore, the values for domain and range are equal, otherwise, the relation won't be a function

Part (2):

The graph of the function is shown in the attached image.

Now, a linear function:

1- is a straight line. This means that it has neither curved nor sharped bends.

In the graph of the given function, we can see that it has a sharp bend at the point (5,0)

2- has a constant slope all over the graph.

Let's test this condition on our graph:

For the two points (0,5) and (1,4):

slope = $\frac{4-5}{1-0} = -1$

For the two points (6,1) and (7,2):

slope = $\frac{2-1}{7-6} = 1$

We can see that the slope is not constant along the whole graph.

Based on the above two conditions, the absolute function is not a linear function

Part(3):

There are two types of proportionality:

1- Direct proportionality: This means that as one value increases, the other would increase at the same rate

Let's check this on the given function:

f (x) = -3x

At x = 1 ..........> f (x) = -3(1) = -3

At x = 2 .........> f (x) = -3(2) = -6

We can note that the condition of direct proportionality is not fulfilled, therefore, the relation is not showing direct proportionality

2- Inverse proportionality: This means that as one value increases, the other would decrease by the same rate.

Inverse proportionality has the general formula: y = $\frac{k}{x}$

where k is the constant of proportionality.

The given function is: f (x) = -3x

We can note that it does not have the same format as the general formula of the inverse proportionality.

Therefore, the given relation does not show inverse proportionality

Based on the above, we can conclude that the given relation is non-proportional

Part (4):

The graphs are shown in the second attached image

Let's check the givens:

1) y = 9

We know that this would be a line parallel to the x-axis constant at y = 9

Therefore, this choice is correct

2) -2x² + 4

We know that the second degree polynomial gives a curve not a line.

Therefore, this choice is incorrect

3) y = -8 + 3

The general form of the linear line is y = mx + b

The given equation has the same format as the general one.

Therefore, this choice is correct

4) y = 7/x

Again, the general form of the linear line is y = mx + b

The given equation has the a different format than the general one.

Therefore, this choice is incorrect

Hope this helps :)

7 0

3 years ago