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
romanna [79]
4 years ago
5

I need some help on this one

Mathematics
1 answer:
julia-pushkina [17]4 years ago
5 0

Answer:

letter D. 19

Step-by-step explanation:

Since 71° is less than 90, we can express this in terms of a cofunction

sin (0) = cos(90 - 0)

sin(71) = cos(90 - 71)

sin(71) = cos(19)

You might be interested in
8/11 divide by 3/5<br><br> find the quotient
AURORKA [14]

Answer:

=40/33

8/11 divide 3/5 -> 8/11 x 5/3 and multiply 8x5 then 11x3 then u got your answer! :)

Hope this worked :D

8 0
3 years ago
Read 2 more answers
2 1/4 x 3 2/5<br> show all your work
monitta

Answer:

153/20

Step-by-step explanation:

I assume you're asking

2 \frac{1}{4}  \times 3 \frac{2}{5}

So

\frac{9}{4}  \times  \frac{17}{5}

=

\frac{153}{20}

5 0
3 years ago
Factor the binomial 9t to second power,-4 =
Naily [24]

Using subtraction of perfect squares, it is found that the factored expression is:

9t² - 4 = (3t - 2)(3t + 2).

<h3>What is the subtraction of perfect squares factoring?</h3>

It is given as follows:

a^2 - b^2 = (a - b)(a + b)

In this problem, the binomial is given as follows:

9t² - 4.

Hence:

  • a² = 9t² -> a = 3t.
  • b² = 4 -> b = 2.

Hence the factored expression is:

9t² - 4 = (3t - 2)(3t + 2).

More can be learned about subtraction of perfect squares at brainly.com/question/16948935

#SPJ1

3 0
2 years ago
11 x 4 + 6 - 8 x 27 - 37 + 48 =<br><br><br>I give brainliest
mr_godi [17]

Answer:

-155

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
the weight of a rock sample is measured to be 3.1 pounds. What is the percent of error in the measurement?
Arlecino [84]
2% , 5% , 10% are the errors in that
7 0
3 years ago
Other questions:
  • The temperature dropped from 75 degrees to 50 degrees. What was the percent decrease in the temperature?. . . 33%. 50%. 66%
    8·2 answers
  • Which algebraic expression is a polynomial?
    9·2 answers
  • A 20,000 deposit earns 3.6% interest for 3 years. If no money is deposited or withdrawn how much interest will ever earned at th
    11·1 answer
  • What is 34×8 or 54×38
    6·1 answer
  • Is Crammer’s Rule always applicable when trying to solve a system of linear equations? Explain.
    14·2 answers
  • The black triangles are similar. Identify the type of segment shown in blue and find the value of the variable. altitude base hy
    12·1 answer
  • Find the value of x. Write your answer in simplest form.<br> 30°<br> X<br> 14<br> X =
    13·1 answer
  • A sales associate in a department store earns a commission on each suit and each pair of shoes sold. One week, she earned $47 in
    9·1 answer
  • A set of cards is numbered 1,2,3,4,5,6,7,8,9,10,11,12. Suppose you pick a card at random without looking. Find the probability o
    11·2 answers
  • Find the slope of the line containing the points (5, -1) and (-8, -4).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!