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4 years ago

12

What is the structures found on the ventral surface of some fronds,called?

1 answer:

ruslelena [56]4 years ago

5 0

The structure found in the ventral surface of some fronds is called the Indusium. This structure is a membranous outgrowth on the undersurface of fern leaves which protects and covers the structure of developing sporangia. It can be classified as true or false indusium.

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Write an Algebraic expression for the following phrases. K. The sum of a number m and 15 L. 6 more than a number x M. 8 less tha

dmitriy555 [2]

1:-

$\\ \sf\longmapsto m+15$

2:-

$\\ \sf\longmapsto x+6$

3:-

$\\ \sf\longmapsto r-8$

4:-

$\\ \sf\longmapsto \dfrac{3}{4}x=\dfrac{3x}{4}$

5:-

$\\ \sf\longmapsto n(n-1)(n-2)=n!$

6:-

$\\ \sf\longmapsto n+(n+2)=2n+2$

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3 years ago

Please help. What is the intermediate step in the form (x+a)^2=b as a result of completing the square for the following equation

nevsk [136]

Step-by-step explanation:

It makes 2x^2-20-206=0

Find D

Then find X1 and X2

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3 years ago

A package of balloons contains 5 green, 3 yellow, 4 red, and 8 pink balloons. Suppose you reach in the package and choose one ba

Marianna [84]

Probability of choosing pink balloon is $\frac{2}{5}$ .

Step-by-step explanation:

Given,

Number of green balloons = 5

Number of yellow balloons = 3

Number of red balloons = 4

Number of pink balloons = 8

Total number of balloons = 5+3+4+8 = 20

To find the probability of pink balloon.

Formula

Probability of an even = number of outcomes ÷ total number of outcomes

So,

Probability of choosing pink balloon = $\frac{8}{20}$ = $\frac{2}{5}$

6 0

4 years ago

Read 2 more answers

What percentage of families listened to country music?

Allushta [10]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A single card is drawn from a standard 52-card deck. Let Upper B be the event that the card drawn is a black, and let F be the

Paul [167]

Answer:

Probability of card black 0,5 or 50%

Probability of face card 0,23 or 23 %

Step-by-step explanation:

A normal deck of card has 52 cards, half ( 26) black and half red (26)

Probability of card drawn is black is 0,5 or 50%

The deck has 4 suits and each suit 3 face cards, therefore we find 12 possibles events out of 52

Probability of drawn card is face card 12/52 = 0,23 or 23 %

6 0

4 years ago