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
Margaret [11]
3 years ago
15

Can someone explain how the solution doesnt have a negative answer i.e (-pi/3)

Mathematics
1 answer:
galben [10]3 years ago
5 0
As far as I can tell you are correct. The correct answer for x should be
-pi/3

If you plug x=+pi/3 into the expression cos(x/2 + pi/6), it ends i equaling 1/2, not 0.
You might be interested in
Y = -3x+ 5<br> y = x - 3<br> (-2,-4)<br> (2,-1)<br> an infinite number of solutions
Leno4ka [110]
Your answer is (2,-1)
3 0
2 years ago
Read 2 more answers
Could anybody help me with this please?
KengaRu [80]
I think the opposite would be a circle because it would have any points.
4 0
3 years ago
Bryce tried to solve an equation step by step. \qquad\begin{aligned} \dfrac83&amp;=3\left(c+\dfrac53\right)\\\\ \\ \dfrac83&amp;
sesenic [268]

Answer:

Bryce is wrong in step 1 because he did not distribute 3 over 5/3

Explanation

Given the steps taken by bryce as shown, we are to find where he made an error

\qquad\begin{aligned} \dfrac83&=3\left(c+\dfrac53\right)\\\\ \\ \dfrac83&=3c+\dfrac53&\green{\text{Step } 1}\\\\ \\ 1&=3c&\blue{\text{Step } 2}\\\\ \\ \dfrac13&=c&\purple{\text{Step } 3}\\\\ \end{aligned}

Given the expression;

\dfrac83&=3\left(c+\dfrac53\right)\\\\ \\

Step 1:Expand the bracket using the distributive law;

8/3 = 3c + 3(5/3)

<em>Simplify</em>

8/3 = 3c + 15/3

Step 2: Subtract 15/3 from both sides

8/3 - 15/3 = 3c+15/3-15/3

(8-15)/3 = 3c

-7/3 = 3c

Step 3: Multiply both sides by 1/3

-7/3 * 1/3 = 3c * 1/3

-7/9 = c

Swap

c = -7/9

From the calculation, we can see that Bryce is wrong in step 1 because he did not distribute 3 over 5/3 thereby making his solution incorrect

3 0
2 years ago
I need helppp<br> It’s for math and I’m clueless
Tcecarenko [31]

Answer:

14

Step-by-step explanation:

x=4 y=1

Substitute them into the equation 3x-4yy+6

3(4)-4(1)+6

12-4+6

5 0
2 years ago
Read 2 more answers
What ratio is equivalent to 4:5 A. 10/15 B. 4/10 C. 16/20 D. 15/8
laila [671]

The answer is C 16:20 because both numbers 4&5 are multiplied by four

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can some one can do both​
    13·1 answer
  • Help fill in all the boxes plz !!!!
    5·2 answers
  • What is the factored form of 5xy − 40x − 15y + 120?
    5·1 answer
  • Four more than three times a number is greater than twenty-two
    8·1 answer
  • Which expression represents a negative number?
    9·2 answers
  • What is the circumference of a circle with a diameter of 8 feet? Use 3.14 for
    15·1 answer
  • PLEASE HELP FAST! my two problems are in the photo.
    15·1 answer
  • According to the graph what is the value of the constant in the equation below
    7·1 answer
  • Convert. Simplify your answer and write it as a proper fraction or as a whole or mixed number.
    12·1 answer
  • The circle below is center Ed at O. Decide which length,if any, is definitely the same as the length. a) AD. b) BC. Justify your
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!