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
Bond [772]
3 years ago
5

Cos87°cos33° - sin87°sin33°

Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

-\frac{1}{2}

Step-by-step explanation:

cos(87° + 33°) = cos(120°) = -\frac{1}{2}

You might be interested in
what are the solution(s) to the quadratic equation 9x^2 = 4? a. x = 4/9 and x = -4/9 b. x = 2/3and x = -2/3 c. x = 3/2 and x = -
wolverine [178]
9x^2 = 4 \\ x^2 =  \frac{4}{9}  \\ x= \pm  \sqrt{ \frac{4}{9} }  \\ x= \pm  \frac{2}{3}
solution is <span>x = 2/3 and x = -2/3</span>
3 0
3 years ago
F=(9/5) C +32, C=15 Can you show me what a graph looks like?
CaHeK987 [17]

Answer:

Step-by-step explanation:

F=(9/5) C +32 has the form of the equation of a straight line:  y = mx + b, where m is the slope and b is the y-intercept.  By comparing these two equations we see that the slope, m, is (9/5) and the y-intercept is 32 (or (0, 32)).

To graph this, first locate the y-intercept (0, 32); put a dark dot there.  Since the slope is 32, or 32/1, move your pencil point 1 unit to the right, from (0, 32) to (1, 32), and then from (1, 32) move y our pencil point 32 units upward.  Plot another dark dot there and then draw a straight line through these two points.

We can evaluate the given function F=(9/5) C +32 at C = 15 by replacing C in the formula with 15:  F = (9/5)(15) + 32, or F = 59.

8 0
3 years ago
A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?
WITCHER [35]

Answer:

divide 792 by 2

792÷2=304

then add 92 to the cost 304

304+92=396

6 0
1 year ago
What is the number six million, thirty thousand, expressed in scientific notation?
irina1246 [14]
six million, thirty thousand    <span>6, 030, 000     expressed in scientific notation
</span>

 <span>6.03×10^6.</span>


4 0
2 years ago
Help please i really need it
mihalych1998 [28]

Answer:

3x - 4

Step-by-step explanation:

Slope (m): 3

Y-intercept (c): = -4

Equation of Line: Y=mx + c

                            Y=3x -4

3 0
3 years ago
Other questions:
  • Last week Jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. About how many miles did Jason walk
    11·1 answer
  • In a 45°-45°-90° triangle, the length of the hypotenuse is 11. Find the length of one of the legs.
    14·1 answer
  • Suppose y varies directly with x. Write a direct equation that relates x and y when y = 125 and x = -5. Then find y when x = 12.
    5·1 answer
  • Select all the true statements. Group of answer choices The ratio of triangles to squares is 2 to 4. The ratio of squares to smi
    5·1 answer
  • There are 56 students in the orchestra and twice that number in the band. There are 23 boys and 24 girls in the choir. If each s
    10·1 answer
  • Help! Brainliest to the first correct answer​
    5·1 answer
  • Yeah yeah I know it math
    14·1 answer
  • Please help me with this question!
    10·1 answer
  • Mike was training for a marathon. On his first day, he ran 2.45 kilometers. On the second day, he ran 3.8 kilometers. How far di
    12·2 answers
  • Is this a function of not??
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!