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
anastassius [24]
3 years ago
5

15) will mark BRAINLIEST AND 10 POINTS.

Mathematics
2 answers:
vaieri [72.5K]3 years ago
6 0
Equation identically true
Ksivusya [100]3 years ago
6 0
Cotx=cosx/sinx
cot²x=cos²x/sin²x
cscx=1/sinx, cscx+1=1/sinx +sinx/sinx=(1+sinx)/sinx

cot²x/(cscx+1)=(cos²x/sin²x)*(sinx/(1+sinx)=cos²x/[sinx(1+sinx)]

Recall that sin²x+cos²x=1, so cos²x=1-sin²x=(1+sinx)(1-sinx)

therefore: cos²x/[sinx(1+sinx)] can be written as
(1+sinx)(1-sinx)//[sinx(1+sinx)]=(1-sinx)/sinx=the left side.

You might be interested in
21 and 22 are complementary angles. The measure of Z1 is 45 The measure of Z2 is 3x°. Find the value of x. The figure is not dra
Alex

9514 1404 393

Answer:

  x = 15

Step-by-step explanation:

<u>Given</u>:

  ∠1 + ∠2 = 90°

  ∠1 = 45°

  ∠2 = 3x°

<u>Find</u>:

  x

<u>Solution</u>:

  Using the given values in the given equation, we have ...

  45° +3x° = 90°

  15 + x = 30 . . . . . . divide by 3°

  x = 15 . . . . . . . . . . . subtract 15

6 0
2 years ago
Figure A is a scale image of Figure B, as shown.
Inessa [10]

9514 1404 393

Answer:

  x = 2

Step-by-step explanation:

Using the scale factor, we have ...

  x/8 = 0.25/1

  x = 8(0.25) . . . . multiply by 8

  x = 2

_____

<em>Additional comment</em>

I like to write proportions with the variable in the numerator. That way they are easily solved by a single multiplication. The trick is to get corresponding parts in the same positions. Here, the fractions are written ...

  B/A = smaller part / larger part = x/8 = 0.25/1

5 0
3 years ago
There are 5 dogs and 3 cats per city block how many cats and dogs in 11 blocks
Lisa [10]

The answer is 88 because if you add 5+3 and then multiply by 11, you would equal out to 88 dogs and cats

6 0
3 years ago
Read 2 more answers
Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.33 and a standard deviation of 1.5. U
never [62]

"97.5" will be the American women's % having their shoe sizes that are no more than 11.33.

Given values are:

  • Mean = 8.33
  • Standard deviation = 1.5

Now,

= 8.33 + 2\times 1.5

= 11.33 (2 above Standard deviation)

→ The data values are between 8.33 and 11.33,

= \frac{95}{2}

= 47.5 (%)

→ The data value below 11.33,

= 50 (%)

hence,

→ The percentage of American women will be:

= 50+47.5

= 97.5 (%)

Thus the above answer is appropriate.

Learn more about empirical rule here:

brainly.com/question/18529739

8 0
3 years ago
Venn diagrams can be used to represent the relationship between two categorical claims but not three. True/ False
irga5000 [103]

Answer:

False!

Step-by-step explanation:

A Venn diagram can represent the relationship between several categorical claims, not only two. For example: One bubble is labeled "cats only", another is labeled,"dogs only", and the third -- "birds only". The middle section would be "dog and cats and birds".

4 0
3 years ago
Other questions:
  • Boonk gang whole lotta
    5·2 answers
  • Please help me with this
    9·2 answers
  • Charlie runs 2 laps in 8 minutes. How many minutes will 9 laps take him?
    9·1 answer
  • The graph shows the wolf population in
    6·1 answer
  • What is the answer to the following question?
    15·1 answer
  • Shrina is selling cookie dough for her soccer team. She sold 2 tubs of
    6·1 answer
  • If 2, a, b, −54 forms a geometric sequence, find the values of a and b.
    5·1 answer
  • 1) Ruth works a job where she gets paid $750 per week. Next year her pay will be
    5·1 answer
  • ONLY ANSWER IF U KNOW!<br>Find the limit of the function algebraically.
    7·1 answer
  • In the expression, x^2 + 6x + 9, which is the coeffcient?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!