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I am Lyosha [343]
4 years ago
13

How to find the area

Mathematics
2 answers:
Virty [35]4 years ago
7 0

Just like you drew those dotted lines. You know how to find the areas of rectangles which is A=length x width

The answer would be 20cm^2+6cm^2+18cm^2=44 cm^2


strojnjashka [21]4 years ago
5 0

You would divide it into smaller shapes and then find the area then add them all up.

4*5=20

3*2=6

3*6=18

20+6+18=34cm^2

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Justin bought his truck new for $32,000. Its value decreases 9.0% each year. Choose the letter for the best answer.
Pavel [41]

Answer:

Justin bought his truck new for $32,000. Its value decreases 9.0% each year. Choose the letter for the best answer.

5. Which function represents the yearly value of Justin's truck?

A f(t) = 32,000(1 + 0.9)^t

B f(t) = 32,000(1 - 0.9)^t

C f(t) = 32,000(1 + 0.09)^t

<u>D f(t) = 32,000(1 - 0.09)^t </u>

6. When will the value of Justin's truck fall below half of what he paid for it?

F In 6 years

<u>G In 8 years </u>

H In 10 years

J In 12 years

Step-by-step explanation:

3 0
3 years ago
Suppose I claim that the average monthly income of all students at college is at least $2000. Express H0 and H1 using mathematic
pishuonlain [190]

Answer:

For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:

Null hypothesis (H0): \mu \geq 2000

Alternative hypothesis (H1): \mu

And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 200 or no

Step-by-step explanation:

For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:

Null hypothesis (H0): \mu \geq 2000

Alternative hypothesis (H1): \mu

And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 2000 or no

7 0
3 years ago
Can someone please help with this math problem
Ivenika [448]

Answer:

∆ABC=∆ADE ............by AA test of similarity

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9/6=3/x

3/2=3/x

x=2 x 3/3

<h2>x=2 </h2>
8 0
3 years ago
Identify the domain and the range.
QveST [7]
Domain -x axis
Range-Y axis
7 0
4 years ago
30% of a number is 45 what is the number ?
adell [148]

Hey there! I'm happy to help!

When talking about percents, the word "is" usually means equals. Let's use this to solve an equation! We will call our number n. Note that 30% is equal to 0.3 in decimal form because 0.3 is 30% of one! :D

0.3n=45

To solve, we need to isolate the n. To do this, we divide both sides by 0.3 because this cancels out the 0.3 that is being multiplied by n and it shows us what n will then equal.

0.3n÷0.3=45÷0.3

n=150

Therefore, 30% of 150 is 45. Try multiplying 0.3 by 150 and you will get 45!

Have a wonderful day! :D

4 0
3 years ago
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