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
Alika [10]
2 years ago
12

HELP HELPPPP ME PLSSS

Mathematics
2 answers:
Scilla [17]2 years ago
7 0

Answer:

The answers are B and D

Step-by-step explanation:

have a wonderful day

Alja [10]2 years ago
3 0

Answer: letter b

Step-by-step explanation:

You might be interested in
3) The ratio between the number of
salantis [7]

Answer:

15

Step-by-step explanation:

70÷14=5

5×3=15

So the ratio would be 70:15 which can be simplified to 14:3

5 0
2 years ago
Cos^2x+cos^2(120°+x)+cos^2(120°-x)<br>i need this asap. pls help me​
o-na [289]

Answer:

\frac{3}{2}

Step-by-step explanation:

Using the addition formulae for cosine

cos(x ± y) = cosxcosy ∓ sinxsiny

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

cos(120 + x) = cos120cosx - sin120sinx

                   = - cos60cosx - sin60sinx

                   = - \frac{1}{2} cosx - \frac{\sqrt{3} }{2} sinx

squaring to obtain cos² (120 + x)

= \frac{1}{4}cos²x + \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

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

cos(120 - x) = cos120cosx + sin120sinx

                   = -cos60cosx + sin60sinx

                   = - \frac{1}{2}cosx + \frac{\sqrt{3} }{2}sinx

squaring to obtain cos²(120 - x)

= \frac{1}{4}cos²x - \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

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

Putting it all together

cos²x + \frac{1}{4}cos²x + \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x + \frac{1}{4}cos²x - \frac{\sqrt{3} }{2}sinxcosx + \frac{3}{4}sin²x

= cos²x + \frac{1}{2}cos²x + \frac{3}{2}sin²x

= \frac{3}{2}cos²x + \frac{3}{2}sin²x

= \frac{3}{2}(cos²x + sin²x) = \frac{3}{2}

                 

5 0
3 years ago
Use mental math to simplify the expression. (5 + 23) + 65
ohaa [14]
1. (5+23)+65 = (5+65)+23 = 70+23 = 93 (D)
2. -(4x-7) = -4X+7 (C)
3. 2(6X+9) = 12X+18 (B)
4. 5(X-3) = 35
X-3 = 35/5
X-3 = 7
SO X= 7+3 = 10

THEN NO
9 IS NOT A SOLUTION
8 0
3 years ago
What multiplies together to get 10 but adds together to get -11
sveticcg [70]
-10 and -1 multiply to get 10 and add to get -11
6 0
3 years ago
Read 2 more answers
What are the coordinates of the point?
Olenka [21]

Answer:

(-3,6)

Step-by-step explanation:

As  graph shows x=-3 and y=6  

6 0
2 years ago
Read 2 more answers
Other questions:
  • I realllyyy need help I feel so dumb idk why :(
    14·1 answer
  • Find the mean for the following sets of numbers.14,15,20,21
    13·2 answers
  • Define the word evaluate. in complete sentences
    10·1 answer
  • What effect will a translation 3 units down and 2 units left have on the polygon?
    5·1 answer
  • Kaya is saving money at a rate of $30 per month. Edgardo is saving money at a rate of $35 per month. They both started saving at
    5·1 answer
  • What is the greatest common factor for both terms: 24x + 8
    5·1 answer
  • The original price of a DVD is $25. The price is marked down 17% each month.
    15·1 answer
  • Your cousin babysits for 5 days and
    9·2 answers
  • 16. write an inequality for each graph
    5·1 answer
  • HELPPPPP I NEED TO DO THIS BEFORE 8:00​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!