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
Helen [10]
4 years ago
13

Given that the area of rectangle DEFC is 90 square units. Calculate the area of triangle ABC. Explain your work.

Mathematics
1 answer:
dlinn [17]4 years ago
7 0
If someone know plz tell
You might be interested in
A soccer ball kicked off the ground has height modeled by the function h = -t^2 + 6t, where t is the number of seconds since the
Artist 52 [7]

Answer:

I like soccer

Step-by-step explanation:

I know this because I like soccer which means I like soccer

8 0
3 years ago
Reed has 8 more pennies than quarters. He saved 5 times as many pennies as quarters. How much money does he have in all ? Answer
mariarad [96]

Answer:

40 pennies

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The parametric curve described by the equations x=\cos(t),\;\;y=\sin(t)\cos(t) has two tangent lines at (0, 0). find the equatio
mr Goodwill [35]
Hello,

x=cos(t)==\ \textgreater \  \dfrac{dx}{dt} =-sin(t)\\
y= \dfrac{sin(2t)}{2}==\ \textgreater \  \dfrac{dy}{dt} =cos(2t)\\

 \dfrac{dy}{dx} = \dfrac{ \frac{dy}{dt}}{ \frac{dx}{dt} } =- \frac{cos(2t)}{sin(t)} \\
For\ x=0, \ t=cos(0)= \frac{ \pi }{2} +k \pi \\

( \dfrac{dy}{dx} )_{x=0} =\pm\ 1\\

tangents \ are\ \{ y=-x,y=x \}\\



3 0
4 years ago
What is the value of x in the equation below? Round to the nearest hundredths place.
Nezavi [6.7K]

Answer:

3.17

Step-by-step explanation:

Just took the quiz

3 0
3 years ago
Read 2 more answers
M and N are complementary angles, fill in the<br> blank Sin M = 12/19, Cos N
yKpoI14uk [10]

Answer:

12/19

Step-by-step explanation:

M and are complementary then

sinM=cosN

Given: sinM=12/19

cosN=12/19

8 0
3 years ago
Other questions:
  • What is the value of the expression? ​−2.1(4.7+(−7.4))​ HELPPP
    15·2 answers
  • Explain how to write and evaluate an algebraic expression. one more than the product of a number and seven, decreased by five; e
    15·2 answers
  • Write the equation of a line that passes through the point (3, 9) and has a slope of -1/3 PLEAS HELP NEED IT ASAP WILL THANK
    15·1 answer
  • Mark's computer weighs 35.769 pound
    13·2 answers
  • Find the difference (3 -13x-7x2)-(5x2+12x-10)
    10·2 answers
  • Name: cuiusly thens
    12·1 answer
  • What is the solution to the equation? Please help! (Picture included)
    12·2 answers
  • Harrison has 80 CDs in his music collection. If 70% of the CDs are country music and 10% are pop, how many CDs are other types o
    12·2 answers
  • I need help please ASAP !!
    7·1 answer
  • Quadratic Functions - Part 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!