1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jonny [76]
4 years ago
12

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

Mathematics
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. 
You might be interested in
What percent of students answered 15 or more questions correctly?
Andrew [12]

Answer:

If I'm thinking right then the answer should be 5% ?

There's 8 students total if I'm correct?

2 people got 15.

2 people got 16.

1 person got 17.

2+2+1=5

2 person got 14.

1 person got 12.

2+1=3                        There's 8 students total. but the answer should be 5%.

4 0
3 years ago
What is the area of trapezoid ABCD ? (Enter your answer as a decimal or whole number)
MrRa [10]
Check the picture below.

bear in mind that, the "bases" are the two parallel sides, and the height is the distance between them.

\bf \textit{area of this trapezoid}\\\\
A=\cfrac{AB(BC+AD)}{2}\\\\
-------------------------------\\\\
\textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ -1}}\quad ,&{{ 5}})\quad 
%  (c,d
B&({{ 3}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
AB=\sqrt{[3-(-1)]^2+[2-5]^2}\implies AB=\sqrt{(3+1)^2+(2-5)^2}
\\\\\\
AB=\sqrt{16+9}\implies AB=\sqrt{25}\implies \boxed{AB=5}

\bf -------------------------------\\\\
\textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
B&({{ 3}}\quad ,&{{ 2}})\quad 
%  (c,d
C&({{ 0}}\quad ,&{{ -2}})
\end{array}
\\\\\\
BC=\sqrt{(0-3)^2+(-2-2)^2}\implies BC=\sqrt{9+16}
\\\\\\
BC=\sqrt{25}\implies \boxed{BC=5}

\bf -------------------------------\\\\
\textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ -1}}\quad ,&{{ 5}})\quad 
%  (c,d
D&({{ -13}}\quad ,&{{ -11}})
\end{array}
\\\\\\
AD=\sqrt{[-13-(-1)]^2+[-11-5]^2}
\\\\\\
AD=\sqrt{(-13+1)^2+(-16)^2}\implies AD=\sqrt{144+256}
\\\\\\
AD=\sqrt{400}\implies \boxed{AD=\sqrt{20}}

so, the area for this trapezoid is then

\bf A=\cfrac{5(5+20)}{2}\implies A=\cfrac{125}{2}\implies A=62\frac{1}{2}

8 0
4 years ago
Please please pleaseee
kaheart [24]

Answer:

a. C= 5/9(F-32)

Step-by-step explanation:

you have to subtract 32 from both sides so that leaves you with f-32=9/5c and so then you need to multipy each side my 5/9 and that leaves yoh with 5/9(f-32)=c

7 0
3 years ago
Consider independently rolling two fair dice, one red and the other green. Let A be the event that the red die shows 3 dots, B b
max2010maxim [7]

Answer:

A & B are independent events. A & C, B & C are not independent events.

Step-by-step explanation:

Independent Events are the events, whose occurrences are completely unrelated to each other.

Event A 'Red dice getting 3' & Event B 'Green die getting 4' ; are unrelated to each other. The numbers on red dice & on green dice are not dependent on each other.

Event C 'Red & Green dice numbers showing sum = 7' is dependent on the numbers coming on red & green dice , i.e events A & events B respectively. So, event C is dependent on both events A & B.

4 0
4 years ago
Fre.e points i guess 2+2+2x5=
lutik1710 [3]

Answer:

14

Step-by-step explanation:

evaluate multiplication first

6 0
3 years ago
Read 2 more answers
Other questions:
  • Help ASAP and explain why ?!
    9·1 answer
  • Explain the difference between b divided by 10 and b divided into 10
    15·1 answer
  • What condition renders this true, where S and T are sets?
    9·1 answer
  • Find the common ratio for the following sequence.<br><br> 1/2, -1/4, 1/8, -1/16, ...
    8·2 answers
  • Graph ​ 24x+25=−6y+7 ​. Use the line tool and select two points on the line.
    15·2 answers
  • What is the value of x??
    10·2 answers
  • An economy package of cups has 460 green cups. If the green cups are 20% of the total package, how many cups are in the package?
    9·1 answer
  • Y= 3x + 2 and y= 3x -3. These lines are...​<br><br>parallel <br>perpendicular<br>neither
    9·2 answers
  • An account grows at an annual interest rate of r, so it grow by a factor of x=1+r each year. The function gives the amount in th
    11·1 answer
  • I need help badly :[
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!