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pashok25 [27]
3 years ago
6

Solve problems and show work with them

Mathematics
1 answer:
Eddi Din [679]3 years ago
8 0
19. The answer is D: 60x^2 - 30x^2
THe length of the rectangle is equal to 10x by 6x so the whole rectangles area is 60x
Now you do the area of the triangle 5x(3x)=15x and divide by two because it’s a triangle so the area of the one triangle is 7 1/2x and there are 4 rectangles so 7.5(4)=30. Now you subtract the 30x from the 60x

20. The answer is 239.44
If the perimeter of the hexagon is 48ft then each side(there are 5sides so we divide 48 by 5) is 9.6 ft.
Now you plug 9.6 into the formula where the lowercase a is to get the area(I’m going to attach a screenshot of it because it’s hard to read without symbols.)

21. The answer is B. 220m^2
To find the area of the teapot our we can find the area of the triangle and the rectangle and add them together
Rectangle: 18(10)=180
Triangle: 8(10)=80
80/2=40
Rectangle + triangle = trapezoid
180+40=220

22. The answer is J. 96in
We solve for x by making the two expressions equal to each other
3x-6=x+14
3x=x+20
2x=20
X=10

Now we plug 10 one the expressions, because they are equal.
3(10)-6
30-6
24

There are 4 sides so 24(4)=96

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Inverse function y = x2 − 18x.
Annette [7]
I hope this helps you

3 0
3 years ago
Can anybody answer this equation? // please make sure to have details
mixer [17]
I think it’s B i hope this is correct have a great day :)
6 0
3 years ago
Suppose Miss Roxanne Davenport is 25 years old right now and puts away $1,800 per quarter in an account that returns 6% interest
Lena [83]

We have been given that miss Roxanne is 25 years old and she puts 1800 dollars per quarter that returns 6% interest.

(a) We need to figure out how much will be in the account when she turns 65 years old. When she turns 65 years old, the number of years during which she made deposits would be 40. Since she made quarterly deposits. She made a total of 160 deposits. We can now figure out the final amount in the account using future value of annuity formula.

A=P\frac{(1+r)^{n}-1}{r}

We have the values P=1800, r=6/4% = 1.5% = 0.015 and n=160.

Therefore, the amount in the account would be:

A=1800\frac{(1+0.015)^{160}-1}{0.015}=1179415.39

Therefore, miss Roxanne will be 1179415.39 dollars in her account when she turns 65 years old.

(b) In this part we need to figure out the total amount she deposited.

The total amount she deposited would be 1800*160=\$288000.

(c) We can find the interest earned by subtracting her contribution from the answer of part (a).

Interest earned = 1179415.39-288000=\$891415.39

7 0
3 years ago
Read 2 more answers
Please help! files attached.
kotykmax [81]
The first question would be x + (x + 4). This is because Max has $x and Keisha has (x + 4) because she has four MORE THAN Max. I am pretty sure that the second one is A, but I am not positive. The first one is right though. I hope this helps!!!
5 0
3 years ago
I need help please?!!!!!!!!
Sunny_sXe [5.5K]

Step-by-step explanation:

add the like terms 5m + 6n + 8m + 2 = 13m + 6n +2

6 0
3 years ago
Read 2 more answers
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