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
Mnenie [13.5K]
3 years ago
8

Kevin was asked to determine the length of side XZ. His work is shown. cos(34°) = (XZ)cos(34°) = 18 XZ =21.7 Which error did Kev

in make? He has the side lengths in the wrong place in the cosine ratio. He multiplied both sides by the length of XZ instead of dividing by XZ. He should have used the sine ratio. He should have used the tangent ratio.
Mathematics
2 answers:
Alika [10]3 years ago
8 0

Answer:

A

Step-by-step explanation:

jek_recluse [69]3 years ago
3 0

Answer:

He has the side lengths in the wrong place in the cosine ratio. (1st Answer on Edgen)

Step-by-step explanation:

You might be interested in
Hello! Could y’all please explain why this is Decay and not growth?
svetlana [45]

Answer:

This is an Exponential Decay

Step-by-step explanation:

A = 1200(0.85)⁶

The above expression is an Exponential Decay because 0.85 is less than 1

The formula for Exponential Decay

= y = a (1 - r)^t

We equate both equation together

Where

a = 1200

1 - r = 0.85

t = 6

Solving for r

1 - r = 0.85

r = 1 - 0.85

r = 0.15

Converting to Percentage

r = 15% decay rate

3 0
3 years ago
What is perpendicular to y=-1/2x+11
ratelena [41]
You have to find the reciprocal of the gradient - 1/2
And to do that just flip the sign and fraction:
-1/2
1/2
2/1

So the answer is,
Y = 2x + 11
3 0
3 years ago
What are the coordinates of point B on \overline{AC} such that AB = 1/2 BC
marta [7]

Answer:

C. B(x,y) = \left(3,-\frac{16}{3} \right)

Step-by-step explanation:

Let A(x,y) = (6,-7), B(x,y) = (x,y) and C(x,y) = (-3,-2). From statement we know that AB = \frac{1}{2}\cdot BC, which is equivalent to the following linear algebraic formula:

B(x,y) -A(x,y) = \frac{1}{2}\cdot [C(x,y)-B(x,y)] (1)

B(x,y)-A(x,y) = \frac{1}{2}\cdot C(x,y)-\frac{1}{2}\cdot B(x,y)

\frac{3}{2}\cdot B(x,y) = \frac{1}{2}\cdot C(x,y)+A(x,y)

B(x,y) = \frac{1}{3}\cdot C(x,y) +\frac{2}{3}\cdot A(x,y) (2)

Then, the coordinates of point B on AC are:

B(x,y) = \frac{1}{3}\cdot (-3,-2)+\frac{2}{3}\cdot (6,-7)

B(x,y) = \left(-1, -\frac{2}{3}\right)+\left(4, -\frac{14}{3} \right)

B(x,y) = \left(3,-\frac{16}{3} \right)

Which means that correct answer is C.

5 0
3 years ago
Brainly Please help me<br> Anybody plssss
Rom4ik [11]

C) 94 degree's


All triangles add up to 180 degree's


180 - ( 52+34) = 94


- R3KTFORGOOD ☕

7 0
3 years ago
Read 2 more answers
Which of these is a geometric experiment? A. Drawing 1 card from each of 5 different decks of cards and getting 2 clubs B. Flipp
Mrac [35]

Answer:

Step-by-step explanation:

ROLLING A DIE AND GETTING YOUR FIRST FOUR ON THE 6TH ROLL

4 0
3 years ago
Other questions:
  • A game involves spinning the spinner. What is the probability of the pointer landing on R
    12·2 answers
  • Thank you to whoever answers!<br> What is 4/10-3/10?
    12·1 answer
  • Find the VERTEX of the parabola f(x) = x^2 - 16x + 63
    14·1 answer
  • 4⋅(1/4^−3)+12 <br> What would be the answer. Please helpp
    6·2 answers
  • Simplify the expression (t^-2)^6
    10·1 answer
  • Evaluate the expression: -6 ( -3/12 ) ( -4 ) ( 5) divided by ( 10 ) <br><br> Please show your work
    14·1 answer
  • penny recorded the hours she worked as a waitress and how much money she earned in tips. this scatterplot shows her results. bas
    10·2 answers
  • What is the value of f?
    10·1 answer
  • Write an expression that is equivalent to 3 (2x + 6y)
    10·2 answers
  • Graph the line that represents the equation ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!