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
dybincka [34]
3 years ago
5

Calculator question.

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0

Answer:

D. [0,pi/2]

Step-by-step explanation:

when Ф = 0 in radian

r²=  4cos (2(0))

r² = 4 * 1

r² = 4

∴ r = √4 = 2

r = 2.

when Ф = π/2 in radian

r²=  4cos (2(π/2))

r² = 4 * -1

r² = -4

∴ r = 0

You might be interested in
What is 15 times 0.85?
Fofino [41]

Answer:

12.75

Step-by-step explanation:

You multiply 15.00 into 0.85

7 0
3 years ago
I'm not sure how to simplify this expression with the exponents rules of multiplication
Vedmedyk [2.9K]
The rule of exponential multiplication is (a^x)*(a^y)=a^(x+y)
using this with your expression, we can do
(10^1)*(10^3)*(10^2)=10^(1+3+2)=10^6
Final answer:
10^6 or 1 million
Hope I helped :)
3 0
3 years ago
Please help me with this question <br><br> image attached
algol [13]

Answer:

Not enough information. For this to be SAS, the single tick mark would need to be located on the line CB and ED.

Step-by-step explanation:


6 0
3 years ago
Which steps can be used in order to determine the solution to Negative 1.3 + 4.6 x = 0.3 + 4 x?
Mars2501 [29]

Answer:

x=8/3 OR 2.7

Step-by-step explanation:

-1.3+4.6x=0.3+4x

4.6x-4x=0.3+1.3

0.6x=1.6

x=1.6/0.6=8/3

x=8/3 OR 2.7

Hope this helps!

4 0
3 years ago
Read 2 more answers
10 more pls help me and add me on snap
777dan777 [17]

Answer:

x=29  y=90

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A number h is tripled and then decreased by 8
    8·2 answers
  • Which distribution has a mean of 5? poisson with λ = 25 binomial with n = 200, π = .05 hypergeometric with n = 100, n = 10, s =
    5·1 answer
  • Graph the ordered pairs for y=4x+2 using x={-2,1,2}
    9·1 answer
  • Which is greater 4\5 or 3/4
    5·2 answers
  • Which statement correctly identifies a local minimum of the graphed function?
    9·1 answer
  • Evaluate ba+cd if a=7/8 , b=−7/16 , c=0.8 , and d=1/4 . Write your answer as a mixed number in simplest form.
    8·1 answer
  • Which of the following is the function f(x) if f^-1(x) = 5x - 19?
    8·1 answer
  • Which number lies halfway between:<br>a) 16 and 38<br>b) 259 and 361<br>1004 and 2 012?<br>​
    14·1 answer
  • This is for my sis plz help her(im a nice older sis)<br> 1. 23/40-11/30 answers(0, 1, 1/2)
    9·1 answer
  • Subtract.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!