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
coldgirl [10]
3 years ago
5

What is the actual area, in square meters, of this field?

Mathematics
2 answers:
o-na [289]3 years ago
8 0

Answer:

Step-by-step explanation:

First it base times height times (1/2)

The base is 7 boxes

The height is 5 boxes

A=(7)(5)(1/2)

A=(35)(1/2)

A=17.5

amid [387]3 years ago
7 0

Answer:

D) 70 meters²

Step-by-step explanation:

The area of a triangle is able to be found by <em>1/2*b*h</em>.

The base is 9 - 2 = 7, 7*2 = <em>14 meters</em>.

The height is 7 - 2 = 5, 5*2 = <em>10 meters</em>.

Plugging those into the equation gives us <em>1/2 * 14 * 10</em>.

That is 140/2 = 70 meters².

(The lengths is multiplied by 2 because the key says that each grid is 2 meters long)

You might be interested in
Hello! Can someone pls help me???
qwelly [4]

Answer:

5x+6y=60

Step-by-step explanation:

x= $5 per pound of second type of seed

y=$6 per pound of first types of seed

3 0
3 years ago
Can someone please help !!!!!
Katen [24]
I'm I am so sorry I haven't done this hey sorry
8 0
3 years ago
Find the exact value of sin(cos^-1(4/5))
boyakko [2]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2762144

_______________


Let  \mathsf{\theta=cos^{-1}\!\left(\dfrac{4}{5}\right).}


\mathsf{0\le \theta\le\pi,}  because that is the range of the inverse cosine funcition.


Also,

\mathsf{cos\,\theta=cos\!\left[cos^{-1}\!\left(\dfrac{4}{5}\right)\right]}\\\\\\&#10;\mathsf{cos\,\theta=\dfrac{4}{5}}\\\\\\ \mathsf{5\,cos\,\theta=4}


Square both sides and apply the fundamental trigonometric identity:

\mathsf{(5\,cos\,\theta)^2=4^2}\\\\&#10;\mathsf{5^2\,cos^2\,\theta=4^2}\\\\&#10;\mathsf{25\,cos^2\,\theta=16\qquad\qquad(but,~cos^2\,\theta=1-sin^2\,\theta)}\\\\&#10;\mathsf{25\cdot (1-sin^2\,\theta)=16}

\mathsf{25-25\,sin^2\,\theta=16}\\\\&#10;\mathsf{25-16=25\,sin^2\,\theta}\\\\&#10;\mathsf{9=25\,sin^2\,\theta}\\\\&#10;\mathsf{sin^2\,\theta=\dfrac{9}{25}}&#10;

\mathsf{sin\,\theta=\pm\,\sqrt{\dfrac{9}{25}}}\\\\\\&#10;\mathsf{sin\,\theta=\pm\,\sqrt{\dfrac{3^2}{5^2}}}\\\\\\&#10;\mathsf{sin\,\theta=\pm\,\dfrac{3}{5}}


But \mathsf{0\le \theta\le\pi,} which means \theta lies either in the 1st or the 2nd quadrant. So \mathsf{sin\,\theta} is a positive number:

\mathsf{sin\,\theta=\dfrac{3}{5}}\\\\\\&#10;\therefore~~\mathsf{sin\!\left[cos^{-1}\!\left(\dfrac{4}{5}\right)\right]=\dfrac{3}{5}\qquad\quad\checkmark}


I hope this helps. =)


Tags:  <em>inverse trigonometric function cosine sine cos sin trig trigonometry</em>

3 0
3 years ago
Read 2 more answers
Element X is a radioactive isotope such that every 25 years, its mass decreases by half. Given that the initial mass of a sample
Julli [10]
50*(.5)^(23/25)=26.43
7 0
3 years ago
Please help I don’t know if I’m doing this correctly
solmaris [256]

Answers:

  1. Exponential and increasing
  2. Exponential and decreasing
  3. Linear and decreasing
  4. Linear and increasing
  5. Exponential and increasing

=========================================================

Explanation:

Problems 1, 2, and 5 are exponential functions of the form y = a(b)^x where b is the base of the exponent and 'a' is the starting term (when x=0).

If 0 < b < 1, then the exponential function decreases or decays. Perhaps a classic example would be to study how a certain element decays into something else. The exponential curve goes downhill when moving to the right.

If b > 1, then we have exponential growth or increase. Population models could be one example; though keep in mind that there is a carrying capacity at some point. The exponential curve goes uphill when moving to the right.

In problems 1 and 5, we have b = 2 and b = 1.1 respectively. We can see b > 1 leads to exponential growth. I recommend making either a graph or table of values to see what's going on.

Meanwhile, problem 2 has b = 0.8 to represent exponential decay of 20%. It loses 20% of its value each time x increases by 1.

---------------------

Problems 3 and 4 are linear functions of the form y = mx+b

m = slope

b = y intercept

This b value is not to be confused with the previously mentioned b value used with exponential functions. They're two different things. Unfortunately letters tend to get reused.

If m is positive, then the linear function is said to be increasing. The line goes uphill when moving to the right.

On the other hand if m is negative, then we go downhill while moving to the right. This line is decreasing.

Problem 3 has a negative slope, so it is decreasing. Problem 4 has a positive slope which is increasing.

7 0
1 year ago
Other questions:
  • A booklet is made from 6 rectangular pieces of paper. Each piece measures 297mm by 420mm. The mass of paper is 80g per m^2. What
    15·1 answer
  • Four friends go out to eat and their meal costs $86.50. The sales tax is 6.75% and they should tip the waiter 20%. How much shou
    13·2 answers
  • Diego measured the length of a pain to be 22 cm the actual length of the pen is 23 cm which of these is the closest to the perce
    9·1 answer
  • Can someone please help me with this problem? I tried inputting the numbers into the standard deviation equation but I did not g
    7·1 answer
  • 11(p-3)=5(p+3) really need an answer please hahaha
    8·2 answers
  • **MARKING BRAINLIEST PLEASE HELP**
    10·1 answer
  • Help
    7·2 answers
  • How do I write an equation of a line that is parallel to 2x-3y=15
    12·1 answer
  • Cara is a high school student. On average, there are 26 students per class at her school, with a standard deviation of 3 student
    6·1 answer
  • Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!