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
lys-0071 [83]
3 years ago
8

PLS HELP ME UNDERSTAND THIS

Mathematics
2 answers:
katovenus [111]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

can be soled by substitution remember BEDMAS

can also be written like this

((-2)-2*(-0.5))^3

Lelu [443]3 years ago
3 0
-1 is the answer
Calcutense this to that and ejejsjekw sueñen con la que me has mandado el video del día del año que me paso en el día del año pasado
You might be interested in
Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi
Strike441 [17]
The range of communication is about 55 meters.
6 0
3 years ago
How to solve this :') please help
blsea [12.9K]

Answer:

3/2

Step-by-step explanation:

sin(3π/4 - β) = sin(3π/4)cosβ - cos(3π/4)sinπ =

\sin(\frac{3\pi}{4}-\beta)=\sin(\frac{3\pi}{4})\cos\beta-\cos\frac{3\pi}{4}\sin\beta\\=\frac{1}{\sqrt{2}}\cos\beta-(-\frac{1}{\sqrt{2}})\sin\beta\\\\=\frac{1}{\sqrt{2}}(\cos\beta +\sin\beta)\\\\\sin^2(\frac{3\pi}{4}-\beta)=\frac{1}{2}\cos\beta +\sin\beta)^2=\frac{1}{2}(\cos^2\beta +\sin^2\beta+2\sin\beta\cos\beta\\=\frac{1}{2}(1+\sin2\beta)=\frac{1}{2}(1-\frac{1}{5}) = \frac{2}{5}\\

Use \cot^2x=\csc^2x-1=\frac{1}{\sin^2x}-1

so

\cot^2(\frac{3\pi}{4}-\beta)=\frac{1}{\sin^2(\frac{3\pi}{4}-\beta)}-1 = \frac{1}{\frac{2}{5}}-1=\frac{5}{2}-1=\frac{3}{2}

7 0
2 years ago
Sixty percent of Company A’s employees are considered top performers. Fifty five percent of Company A’s employees are in a rigor
pickupchik [31]
Not exactly. there are still 40 percent of the employees that are not top performers. for all you know those 40 percent could make up the majority of the employees in the training program<span />
5 0
3 years ago
Read 2 more answers
a dime is dropped from a building at 1.024 ft . if the equation for height as a function of time is h(t)=-16t^2+ initial height
babunello [35]

Answer:

The dime hits the ground after 8 sec.

Step-by-step explanation:

Set h(t) = -16t^2 + h(0) equal to 0:  -16t^2 + 1,024 ft = 0, or:

16t^2 = 1,024 ft, or:

 t^2 =  64 ft^2

Then t = +8 sec

The dime hits the ground after 8 sec.

7 0
2 years ago
Alexis is making goodie bags for her birthday party. She has made 12 bags already.
Genrish500 [490]
20
Needs 20 characters
8 0
3 years ago
Other questions:
  • Two negative integers are five minutes apart on the number line, and their product is 126. What is the sum of the two integers?
    6·1 answer
  • What is 9 times -11 + 17 times 11 in factored form
    7·1 answer
  • The area of a triangle is 25 sq cm and the base of the triangle is 5 cm. Which equation could be used to find the height of the
    9·1 answer
  • Solve for x: 5 − (x + 5) &gt; −2(x + 4)
    7·2 answers
  • You have $900 in a checking account. You pay a $60 cell phone bill each month using this account.
    14·1 answer
  • Monica and lauren draw the kitchen
    13·2 answers
  • Plz help will mark brainliest if correct answer only
    6·2 answers
  • Find the surface area of the square pyramid. Draw a net to find the area of the base and each face of the pyramid.
    6·2 answers
  • Describing How to Create a System of Equations
    10·1 answer
  • 0.2r = 0.5r<br> hurry help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!