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
Sveta_85 [38]
3 years ago
11

Let #N mean the number of days in year N. What is the value of #1988 + #1989 + #1990 + #1991?

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
6 0

Answer:

I need help though cause I had this for homework right now

Step-by-step explanation:

You might be interested in
Use the graph below to fill in the blank with the correct number: <br> F(-2)= _______
Alex17521 [72]
F(-2).....this is basically saying that when x = -2, what is y

so f(-2) = 2

because f(x) is the same as y...but when u have f(-2)....this is saying x = -2 and they are wanting to know what y is....and when x = -2, y = 2....so f(-2) = 2
4 0
3 years ago
Read 2 more answers
Here's a graph of a linear function. help
Nostrana [21]

Answer:

its leaner at -4

Step-by-step explanation:

4 0
2 years ago
A precise statement of the qualities of an idea, object, or process is called a
nata0808 [166]

Answer:

C. definition

Step-by-step explanation:

A precise statement of the qualities of an idea, object, or process is called a definition. Hence, option (C) is answer.

8 0
2 years ago
Read 2 more answers
I need help with simply the number please
marta [7]

7 + \frac{2(5-2)2}{4}

7 + \frac{2(5-2)}{2}

7+5-2

12-2 = 10


7 0
3 years ago
Find the exact value of cos(a+b) if cos a=-1/3 and cos b=-1/4 if the terminal side if a lies in quadrant 3 and the terminal side
maria [59]

Answer:

cos(a + b) = \frac{1}{12}(1-2\sqrt{30})

Step-by-step explanation:

cos(a + b) = cos(a).cos(b) - sin(a).sin(b) [Identity]

cos(a) = -\frac{1}{3}

cos(b) = -\frac{1}{4}

Since, terminal side of angle 'a' lies in quadrant 3, sine of angle 'a' will be negative.

sin(a) = -\sqrt{1-(-\frac{1}{3})^2} [Since, sin(a) = \sqrt{(1-\text{cos}^2a)}]

         = -\sqrt{\frac{8}{9}}

         = -\frac{2\sqrt{2}}{3}

Similarly, terminal side of angle 'b' lies in quadrant 2, sine of angle 'b' will be  negative.

sin(b) = -\sqrt{1-(-\frac{1}{4})^2}

         = -\sqrt{\frac{15}{16}}

         = -\frac{\sqrt{15}}{4}

By substituting these values in the identity,

cos(a + b) = (-\frac{1}{3})(-\frac{1}{4})-(-\frac{2\sqrt{2}}{3})(-\frac{\sqrt{15}}{4})

                = \frac{1}{12}-\frac{\sqrt{120}}{12}

                = \frac{1}{12}(1-\sqrt{120})

                = \frac{1}{12}(1-2\sqrt{30})

Therefore, cos(a + b) = \frac{1}{12}(1-2\sqrt{30})

5 0
3 years ago
Other questions:
  • Help me please!!! Answers or helping figuring it out would be great.
    14·1 answer
  • The probability is 1% that an electrical connector that is kept dry fails during the warranty period of a portable computer. If
    8·1 answer
  • Does anyone know the answer to this question?
    9·1 answer
  • Help calculus module 6 DBQ<br><br> please show work
    10·1 answer
  • On Friday night, John ate pizza for dinner and had 1/2 of the pizza left over. On Saturday, he ate 1/3 of what was left. How muc
    6·1 answer
  • hey its me again. need help.... pls.... i forgot how to give brainliest so lol. anyways, 50 pts to whoever answers! thx loves. ​
    12·2 answers
  • Type the expression that results from the following series of steps:
    9·1 answer
  • Philip correctly determines the product by applying the distributive property.
    12·1 answer
  • Dont answer, didnt mean to make this
    9·2 answers
  • Arrange 1/7 4/14 2/3 in ascending order​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!