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eduard
3 years ago
6

Which statement best explains a negative impact that zebra mussels can have on an ecosystem?

Mathematics
1 answer:
Oduvanchick [21]3 years ago
8 0
The correct answer is D
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A worker is handling the four of a rectangle room that is 12 feet by 15 feet.The tiles are square with side lengths 1 1/3 feet.
Anon25 [30]

Answer:

Step-by-step explanation:

The measure of the floor of the rectangular room that is 12 feet by 15 feet. The formula for determining the area of a rectangle is expressed as

Area = length × width

Area of the rectangular room would be

12 × 15 = 180 feet²

The tiles are square with side lengths 1 1/3 feet. Converting 1 1/3 feet to improper fraction, it becomes 4/3 feet

Area if each tile is

4/3 × 4/3 = 16/9 ft²

The number of tiles needed to cover the entire floor is

180/(16/9) = 180 × 9/16

= 101.25

102 tiles would be needed because the tiles must be whole numbers.

3 0
3 years ago
Write:<br> 3^-4 in standard form
pav-90 [236]

Answer:

\frac{1}{81}

Step-by-step explanation:

<u>Key skills: Exponents + Fractions</u>

Use the negative exponent property. If your number is x^-y then it would be the same as 1/x^y

3^-4 is the same as \frac{1}{3^{4}}

3^4 is 81, so your answer would be 1/81.

Hope you have a nice day and understood this!

4 0
3 years ago
In a class of strength 60, 75% like to become teachers. how manu dont like to be teachers?
timurjin [86]

No. of people don't like to be teacher

= 100% - 75% = 25%

<h3>\frac{25}{100}  \times 60 \\  = 15</h3>

So, 15 number of students doesn't like to be teacher

4 0
3 years ago
Study the diagram of circle G, where two chords, EF and WV, are congruent.
ohaa [14]

Answer:

The answer is 36

Step-by-step explanation:

7 0
2 years ago
Name the triangle with the following characteristics. sides: 5 cm, 6 cm, 7 cm; Angles: 75° and 60°. yeah
Verdich [7]

Answer:

Step-by-step explanation:

this triangle is regular one

  • we can't apply the pytahgorian theorem 5²+6²≠7²
  • the angles have different sizes 75≠60≠45
  • the sides have different lengths 5≠6≠7

6 0
3 years ago
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