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Nuetrik [128]
3 years ago
8

7

Mathematics
1 answer:
Sonja [21]3 years ago
3 0

Answer:

<u>Volume</u><u>:</u> 1135.82 yd³

<u>Surface Area</u><u>:</u> 657.12 yd²

Step-by-step explanation:

V = whl

12.2 · 9.8 · 9.5

1135.82

A = 2(wl + hl + hw)

2 · (12.2 · 9.5 + 9.8 · 9.5 + 9.8 · 12.2)

657.12

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In 2006, 5,200 highway accidents were recorded in a city. The number of highway accidents increases by 5% every year. Let y repr
NikAS [45]

Answer:

Geometric sequence

Step-by-step explanation:

Since the accidents increase by 5% this represents that the number is increasing exponentially . So the sequence is geometric sequence. The geometric sequence can be represented by: a, ar, ar^2, ar^3...

4 0
3 years ago
Read 2 more answers
I don't know what the symbol means or what to do.
Irina-Kira [14]

Answer:

Step-by-step explanation:

That weird symbol means "element".  In our case, the elements of the domain (the x-values) are -15, -6, -1.  Which tells us that we are going to sub each one of the numbers into the equation and solve it for the corresponding y value.  That in turn gives us the coordinate point.  The equation is

x + y = 6

Subbing in first -15 for x:

-15 + y = 6 and

y = 6 + 15 so

y = 21 and the coordinate point is (-15, 21).

Subbing in -6 for x:

-6 + y = 6 and

y = 6 + 6 so

y = 12 and the coordinate point is (-6, 12).

Subbing in -1 for x:

-1 + y = 6 and

y = 6 + 1 so

y = 7 and the coordinate point is (-1, 7)

The second choice is the one you want.

Just remember that x is the domain and any elements in the domain go in for x.

Also remember that y is the range and any elements in the range go in for y

7 0
3 years ago
The price of gas went from $2.06 to $2.71 what is the percent increase
creativ13 [48]
32.55% I checked on a website called math-salamanders.com
6 0
3 years ago
Alexis has 52 coins in her coin purse that are either quarters or nickels. She has a total of $8 in her coin purse.
Dennis_Churaev [7]
To find out, we solve the system of equations.

n + q = 52

n = -q + 52

Plug in -q + 52 for 'n' in the 2nd equation:

0.05(-q + 52) + 0.25q = 8

Distribute 0.05:

-0.05q + 2.6 + 0.25q = 8

Combine like terms:

0.2q + 2.6 = 8

Subtract 2.6 to both sides:

0.2q = 5.4

Divide 0.2 to both sides:

q = 27

Now plug this into any of the two equations to find 'n':

n + q = 52

n + 27 = 52

Subtract 27 to both sides:

n = 25

So Alexis had 27 quarters and 25 nickels.
5 0
3 years ago
Are these calculated correctly?
blsea [12.9K]

14. Was the perimeter calculated correctly?

  • Length = 4 yards

  • Breadth = 1 *2/5 yards = 7/5 yards

We know that,

Perimeter of rectangle = 2 ( l + b )

= 2 ( 4 + 7 / 5 )

= 2 ( 20 + 7 / 5 )

= 2 × 27/5

= 54 / 5

= 1 * 4/5

No ...

8 0
3 years ago
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