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
Phantasy [73]
3 years ago
9

Evaluate:cos 45°/sec 30°+cosec30°​

Mathematics
1 answer:
barxatty [35]3 years ago
3 0

Look at the trigonometry table for special angles.

From here, substitute the values in:

\frac{\sqrt{2} }{2} / \frac{2\sqrt{3} }{3}} + 2

Simplify:

\frac{3\sqrt{2} }{4\sqrt{3} } + 2

Rationalize:

\frac{\sqrt{6} }{4} +2

And this is your answer.

You might be interested in
The number of paper clips that crystal has is 42 divided by the number of paper clips that gayle has. If gayle has 11 more paper
Rom4ik [11]

Answer:

• Gayle: 14

• Crystal: 3

Step-by-step explanation:

Let g represent the number of paperclips Gayle has. Then 42/g is the number Crystal has. The relationship between the two numbers is said to be ...

g - (42/g) = 11

Multiplying by g gives ...

g^2 -42 = 11g

g^2 -11g -42 = 0 . . . . subtract 11 g to put into standard form

To factor this, you are looking for two factors of -42 that sum to -11.

-42 = -42·1 = -21·2 = -14·3 = -7·6

You can see that -14 and 3 sum to -11, so the factoring is ...

(g -14)(g +3) = 0

g = 14 . . . . . . . . . . makes the product zero. (The g=-3 solution is extraneous.)

Gayle has 14 paperclips and Crystal has 3.

8 0
3 years ago
Find the GCF for the list.
____ [38]

Answer:

14a⁴b

Step-by-step explanation:

Factors of 28a⁴b⁸c7:

2²×7×a⁴×b⁸×c⁷

Factors of 98a⁵b:

2×7²×a⁵×b

For GCF collect the common factors:

2×7×a⁴×b

GCF = 14a⁴b

4 0
3 years ago
I meedddddddde helppp plsss pls
Marina86 [1]
Your answer is 300 miles
3 0
3 years ago
HELP! 20 POINTS!<br> Please answer the questions on the picture!
svetoff [14.1K]
Option one for the first question would be best because it is 2500 greater. Option 1 is 80000 while option 2 is only 77500.

5 0
3 years ago
What percentage of the mile times range from 7.25 to 9.375?
Step2247 [10]

1. We assume, that the number 9.375 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 9.375 is 100%, so we can write it down as 9.375=100%.

4. We know, that x is 7.25% of the output value, so we can write it down as x=7.25%.

5. Now we have two simple equations:

1) 9.375=100%

2) x=7.25%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

9.375/x=100%/7.25%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 7.25% of 9.375

9.375/x=100/7.25

(9.375/x)*x=(100/7.25)*x       - we multiply both sides of the equation by x

9.375=13.793103448276*x       - we divide both sides of the equation by (13.793103448276) to get x

9.375/13.793103448276=x

0.6796875=x

x=0.6796875

now we have:

7.25% of 9.375=0.6796875

8 0
3 years ago
Other questions:
  • Identify all terms in the expression 5x³ + 4x² + 3x + 1
    11·1 answer
  • A rectangular swimming pool has a perimeter of 96 ft. The area of the pool is 504 ft2. Which system of equations models this sit
    7·1 answer
  • HURRY PLEASE!
    13·1 answer
  • [WILL GIVE BRAINLIEST ANSWER TO ANYONE WHO SOLVES FIRST]
    15·1 answer
  • In the lab tab in the data file, there is data on the IQs for first graders at a university lab school. a. Calcualte a point est
    9·1 answer
  • Ronald and Tyler met for dinner in downtown Newport. Ronald did flat-rate valet parking for $12. Tyler went to another valet and
    10·1 answer
  • Evaluate the expression uv^2 + 5uv + u^2 for u = 3 and v = 4. HELP PLEASE!!
    8·1 answer
  • 11/12 times 8 HELP ME PLZPLZ PLZ PLZPLZPLZ
    9·2 answers
  • A polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6
    7·1 answer
  • HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLS
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!