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
swat32
2 years ago
9

Can anyone help me solve this?​

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
8 0

\\ \rm{:}\rightarrowtail sin^245°-tan^260°+cos^290°

  • sin45=1/√2
  • tan60=√3
  • cos90=1

\\ \rm{:}\rightarrowtail (\dfrac{1}{\sqrt{2}})^2-(\sqrt{3})^2+(0)^2

\\ \rm{:}\rightarrowtail \dfrac{1}{2}-3+0

\\ \rm{:}\rightarrowtail 1/2-3

\\ \rm{:}\rightarrowtail -5/2

Likurg_2 [28]2 years ago
3 0

Answer:

  • - 2.5

Step-by-step explanation:

  • sin²45° - tan²60° + cos²90° =
  • (√2/2)² - (√3)² + 0² =
  • 1/2 - 3 + 0 =
  • 0.5 - 3 =
  • - 2.5
You might be interested in
If M is the midpoint of segment CD with CM = 3x + 1 and MD = 8x - 24, find CD.
ra1l [238]
X = 5 so that would mean if you plug it into both equations, segment CD would be 32 units long.
8 0
3 years ago
If f(x) = 3x - 1 and g(x) = x + 2, find (f - g)(x).
Marina86 [1]

Answer:

\boxed{\sf (f - g)(x) = 2x - 3}

Given:

f(x) = 3x - 1

g(x) = x + 2

To Find:

(f - g)(x)

Step-by-step explanation:

\sf (f -g)(x) = f(x) - g(x) \\ \\   \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =(3x - 1) - (x + 2) \\  \\ \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =3x - 1 - x - 2 \\  \\ \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =3x - x - 1 - 2 \\  \\ \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =(3x - x) - (1 + 2) \\  \\ \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =2x - (1 + 2) \\  \\ \sf \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: =2x - 3

6 0
3 years ago
What are Angle Bisectors? Select ALL that apply
uranmaximum [27]

Answer:

Its when you add angles together

Its when two angles are congruent

Step-by-step explanation:

3 0
3 years ago
Amir ran the first 200-meter leg of the relay race with a speed of 8,260 millimeters per second. Ryder ran the last 200-
kkurt [141]

Step-by-step explanation:

Convert the speeds of Amir and Ryder to meters per second (m/s).

Amir:

8260 mm/s = 8.260 m/s

Ryder:

930 cm/s = 9.30 m/s

9.30 m/s > 8.260 m/s, so:

Ryder ran approximately 1 meter per second faster than Amir.

3 0
2 years ago
in your stuffed animal collection you have 12 dogs, 10 more cats than dogs and 8 fewer bunnies than dogs
Alex787 [66]
22 cats, 4 bunnies, 12 dogs
5 0
2 years ago
Other questions:
  • Emily is making a meal for her family. She uses
    10·1 answer
  • 1 over 10 of the M&M's in a bag are red, 3 over 10 are blue and 1 over 10 are brown. What fraction of all the M&M's are
    6·1 answer
  • n social studies class, Cole is making a scale drawing of a flag. The flag measures 24 inches high by 36 inches wide, having thr
    10·1 answer
  • Complete the sentence. 22/7 divided by 2 is ? The value of (22/7 minus 2/3)
    14·1 answer
  • 3a2+4b for a=2 and b=3
    6·1 answer
  • .Complete the pattern: 5,7,4,6,3,5,____
    13·2 answers
  • Distance between -6, -4, and -9, 0 on a coordinate plane
    5·1 answer
  • La siguiente tabla muestra cuantas unidades de Yerba Mate compra Lucas según su precio. CANTIDADES PRECIO 5 6 4 12 3 18 2 24 1 3
    14·1 answer
  • Find the midpoint of points A(8,-7) and B(3,-1) graphically
    13·1 answer
  • How do I solve this problem??
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!