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
miskamm [114]
3 years ago
14

Find the factors prime or composite 21

Mathematics
1 answer:
velikii [3]3 years ago
7 0

Answer:

21 is a composite number

Step-by-step explanation:

It is a composite because multiple numbers can go in it like 3 and 7 so it is a composite number

You might be interested in
The level of the tide in a harbor changed from 9 1/4 ft to 4 1/2 ft above sea level over a period of 3 1/4 hr
kumpel [21]

Answer:

The answer is "\bold{- \frac{19}{13} \ / hour}"

Step-by-step explanation:

Please find the complete question in the attached file.

Calculating the difference of 9 \frac{1}{4}\ and \ 4 \frac{1}{2}  dividing the value by 3 \frac{1}{4}

\to 4 \frac{1}{2} - 9 \frac{1}{4}\\\\ \to  \frac{9}{2} - \frac{37}{4}\\\\  \to  \frac{18-37}{4} \\\\ \to -\frac{19}{4}\\\\\to -\frac{19}{4} \div \frac{13}{4}= -\frac{19}{4} \times \frac{4}{13} = -\frac{19}{13}\\

3 0
3 years ago
Christina had a total of $120 to spend while shopping. She already spent $68 on clothes . She wants to buy some video games that
avanturin [10]

Answer:

5 video games.

Step-by-step explanation:

In order to find the total number of video games that Tracy can buy with the money, she has we first need to find how much money she has left after buying the clothes. To do this we subtract the amount she spent on clothes by the initial total that Christina had.

120 - 68 = 52

Now that we know Christina has a remaining $52, we can divide this amount by the value of each individual game ($10) in order to calculate how many she can actually afford.

52 / 10 = 5.2

Finally, we can see that she can afford to only buy 5 video games.

4 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
svet-max [94.6K]

Answer:

tan (C) = 2.05

Step-by-step explanation:

Given:

A right angled triangle CDE right angled at ∠D.

Side CD = 39

Side DE = 80

Side CE = 89

We know, from trigonometric ratios that, the tangent of any angle is equal to the ratio of the opposite side to the angle and the adjacent side of the angle.

Therefore, tangent of angle C is given as:

\tan(\angle C)=\frac{DE}{CD}

Plug in the given values and solve for angle C.This gives,

\tan(\angle C)=\frac{80}{39}\\\\\tan(\angle C)=2.051\approx 2.05(Rounded\ to\ nearest\ hundredth)

Therefore, the measure of tangent of angle C is 2.05.

4 0
3 years ago
Help please I need answer asap
antiseptic1488 [7]

1) Vertical angles theorem

  • Angles EOF and BOC are vertical angles.

2) Angle addition postulate

  • Angles AOB and BOC add to form angle AOC.

3) Linear pair

  • Angles that add to form a straight angl are a linear pair

4) Subtraction property of equality

  • They subtracted angle AOC from both sides.
6 0
1 year ago
What’s the value of <br> tan (3arc cos 3/4)
Volgvan
<h2>Answer: -1.469</h2>

This trigonometric function can be written as:

tan (3 cos^{-1} (\frac{3}{4}))   (1)

Firstly, we have to solve the inner parenthesis:

cos^{-1} (\frac{3}{4})= 41.409   (2)

Substituting (2) in (1):

tan (3(41.409))=tan(124.228)   (4)

Finally we obtain the value:

tan(124.228)=-1.469  

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope of a horizontal line?
    14·1 answer
  • A) what is the difference between a sequence and a series? a series is an unordered list of numbers whereas a sequence is the su
    8·2 answers
  • Chuck has 6$ and he spends 1/5 of his money on candy. How much money does Chuck have left?
    11·2 answers
  • Can someone please help? I do not understand any of them​
    5·1 answer
  • What's the ratio for 55 and 60?
    6·2 answers
  • The scale on a map is 1 inch =2 1/2 miles.the distance between two streets on the map is 1 3/4 inches what is the actual distanc
    13·1 answer
  • PLS HELP (20 pts)
    9·2 answers
  • The sum of three consecutive odd numbers is 63. What is the smallest of these numbers?
    12·2 answers
  • Simplify 6days to 4weeks to it lowest term in ratio
    5·1 answer
  • What is 90 plus 60 plus 7x-12
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!