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
mezya [45]
3 years ago
12

Z+x3:use x = 1 and z = 19

Mathematics
1 answer:
pogonyaev3 years ago
7 0

Answer:21

Step-by-step explanation: plug in 19 and 1

1x3 is 3 plus 19 is 21

You might be interested in
Is the triangle obtuse, acute, equilateral or right?
Stells [14]

9514 1404 393

Answer:

  obtuse

Step-by-step explanation:

The law of cosines tells you ...

  b² = a² +c² -2ac·cos(B)

Substituting for a²+c² using the given equation, we have ...

  b² = b²·cos(B)² -2ac·cos(B)

We can subtract b² to get a quadratic in standard form for cos(B).

  b²·cos(B)² -2ac·cos(B) -b² = 0

Solving this using the quadratic formula gives ...

  \cos(B)=\dfrac{-(-2ac)\pm\sqrt{(-2ac)^2-4(b^2)(-b^2)}}{2b^2}\\\\\cos(B)=\dfrac{ac}{b^2}\pm\sqrt{\left(\dfrac{ac}{b^2}\right)^2+1}

The fraction ac/b² is always positive, so the term on the right (the square root) is always greater than 1. The value of cos(B) cannot be greater than 1, so the only viable value for cos(B) is ...

  \cos(B)=\dfrac{ac}{b^2}-\sqrt{\left(\dfrac{ac}{b^2}\right)^2+1}

The value of the radical is necessarily greater than ac/b², so cos(B) is necessarily negative. When cos(B) < 0, B > 90°. The triangle is obtuse.

4 0
3 years ago
Read 2 more answers
What am I doing wrong
nalin [4]

Answer:

(4x/3)-3 <=y

Step-by-step explanation:

You should Plot the graph in this manner

5 0
3 years ago
Free 100 pts be quick
Blizzard [7]

Answer:

Step-by-step explanation:

Bbbbbbb

7 0
3 years ago
Read 2 more answers
67. Find all points on the x-axis that are 5 units from the point<br> (4, -3).
Setler [38]

Answer:(9,2) I assume I don’t really understand the question

Step-by-step explanation:

5 0
3 years ago
Pls help i dont understand​
garik1379 [7]

Answer:

Just  find the outer perimeter and round it, and use your questions wisley because Brainly usally takes away your points.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • This partial circle has a radius of 11 inches.
    7·1 answer
  • Complete the two-column proof found in the attachment
    10·1 answer
  • Maria is comparing the prices of two window cleaning companies. Company A charges $6 per window and an additional $12 as service
    9·1 answer
  • Which of these is equal to cos 19°?
    14·1 answer
  • Write the equation that is the translation of y= |x| right 7 units and down 9 units.
    15·2 answers
  • 14. Prove that the number 10^2019 - 1 is composite
    10·1 answer
  • Libby has a square box of chocolate. The chocolates are arranged evenly in rows. Each chocolate piece in the box takes up one sq
    8·2 answers
  • <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5Cfrac%7B%282x%2B1%29%28x-5%29%7D%7B%28x-5%29%28x%2B4%29%5E%7B2%7D%20%7D" id
    15·1 answer
  • BRAINLIEST AND 100 POINTS! WILL REPORT IF WRONG
    13·1 answer
  • A recipe requires 1/4 of a cup of cranberries for 1 batch of scones how many batches of scones can be made using 6 1/2
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!