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3 years ago

4. What is a lophophore?

Mathematics

2 answers:

Rufina [12.5K]3 years ago

8 0

Answer:

LOPHOPHORE: Ciliated feeding structure, ring of hollow tentacles around mouth, extension of the metacoel, functions in feeding respiration, lateral cilia create water current, frontal cilia transport food to mouth.

tatuchka [14]3 years ago

8 0

Answer:

a horseshoe-shaped structure bearing ciliated tentacles around the mouth in certain small marine invertebrates.

Step-by-step explanation:

got it from google

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How do I figure out b,c, and d

Andrews [41]

Answer:

(b) domain: (-∞, ∞)

(d) range: (-∞, 3]

Step-by-step explanation:

(b) The domain is the horizontal extent of the region over which the function is defined. The function f(x) is defined for all x, from -∞ to +∞. The arrowheads on the ends of the graph mean the graph extends to infinity in x and y directions from those points (y goes to -∞, while x goes to ±∞).

(c) Locate the horizontal grid line y=3 on the graph. Find all the points where it intersects the graph. There is only one: (1, 3). That is, x=1 is the only x-value for which f(x) = 3.

(d) The range of the function is its vertical extent. The graph of f(x) extends from y = -∞ up to y = 3, so that is the range.

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2 years ago

Read 2 more answers

Please solve!!!!!!!!!

Likurg_2 [28]

Answer:

Step-by-step explanation:

Plugging (t-2) in for x, you are left with:

$f(t-2)=\sqrt{4(t-2)+1}=\\\sqrt{4t-8+1}=\\\sqrt{4t-7}$ or answer choice A. Hope this helps!

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3 years ago

Addition and Multiplication are inverse operations.<br><br> True<br> or<br> False?

sdas [7]

Its False. addition and subtraction, Multiplication and division are inverse operations.

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2 years ago

Simplify the expression

asambeis [7]

Answer:

Step-by-step explanation:

given

- 4x²(3x - 7)

multiply each term in the parenthesis by - 4x²

= (-4x² × 3x) + ( - 4x² × - 7)

= - 12x³ + 28x² → B

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3 years ago

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A candy company claims that 25% of the candies in its bags are colored green. Steve buys 32 bags of 32 candies, randomly selects

Luden [163]

Answer:

45.88%

Step-by-step explanation:

We have in this case a binomial distribution when p = 0.25, since the probability is 25%

. The formula that we will use in excel is BINOM.DIST, separated by commas we must put the value of x, n, p and also if it is true or false. We know that n equals 32.

In this case we need to know when x = 7, 8 and 9 and add this, and thus we will obtain the probability:

P (X = 7) + P (X = 8) + P (X = 9)

Excel formulas: = BINOM.DIST (7,32,0.25, FALSE) + BINOM.DIST (8,32,0.25, FALSE) + BINOM.DIST (9,32,0.25, FALSE)

P = 0.1546 + 0.1610 + 0.1431

P = 0.4588

Probability that steve agrees with the company's claim 45.88%

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3 years ago