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
Vikentia [17]
3 years ago
13

2 Math Questions about coordinates

Mathematics
1 answer:
Zepler [3.9K]3 years ago
5 0

Answer:

y = -3

x = -2

Step-by-step explanation:

2x - y = 17

y = x - 10

Adding these 2 equations:-

2x + y - y = 17 + x - 10

2x = x + 7

x = 7  

Now substitute for x  in the first equation:-

2(7)  - y = 17

14 - 17 = y

y = -3   (answer)

Last equation:-

x + 3y = 16

4x - 5y = -38

Now multiply first equation by 5 and the second by 3:-

5x + 15y = 80

12x - 15y = -114   Adding:-

17x = -34

x = -2  (answer)


You might be interested in
The graph of which function(s) will contain the point (3, 6)?
alekssr [168]
The first and third one
5 0
4 years ago
Read 2 more answers
What's the answer to -6<21
Sphinxa [80]

Answer:

Step-by-step explanation:

There's no answer here. Because -6<21.

5 0
4 years ago
The cylindrical container shown below can be completely filled with 24 litres of water. The base area of the container is 600 cm
Virty [35]

Answer:

40cm

Step-by-step explanation:

volume of a cylinder= πr²h

V=24litres, Area=πr²=600cm², height=?

converting litres to cm³

1litre=1000cm³

24litres= 24×1000

=24000cm³

24000=600× h

h= 24000/600

= 40cm

5 0
3 years ago
Find all the missing elements : C=120degrees<br> b= 5<br> c=11
mezya [45]

Answer:

A = 36.8°

B = 23.2°

a = 7.6

Step-by-step explanation:

Given:

C = 120°

b = 5

c = 11

Required:

Find A, B, and a.

Solution:

✔️To find B, apply the Law of Sines

\frac{sin(B)}{b} = \frac{sin(C)}{c}

Plug in the values

\frac{sin(B)}{5} = \frac{sin(120)}{11}

Cross multiply

Sin(B)*11 = sin(120)*5

Divide both sides by 11

sin(B) = \frac{sin(120)*5}{11}

sin(B) = \frac{sin(120)*5}{11}

Sin(B) = 0.3936

B = sin^{-1}(0.3936)

B = 23.1786882° ≈ 23.2° (nearest tenth)

✔️Find A:

A = 180° - (B + C) (sum of triangle)

A = 180° - (23.2° + 120°)

A = 36.8°

✔️To find a, apply the Law of sines:

\frac{sin(A)}{a} = \frac{sin(B)}{b}

Plug in the values

\frac{sin(36.8)}{a} = \frac{sin(23.2)}{5}

Cross multiply

a*sin(23.2) = 5*sin(36.8)

Divide both sides by sin(23.2)

a = \frac{5*sin(36.8)}{sin(23.2)

a = 7.60294329 ≈ 7.6 (nearest tenth)

5 0
3 years ago
A junior college is going to choose a Homecoming Queen, and the candidates are the Freshman Queen and the Sophomore Queen. If th
KonstantinChe [14]
Count the votes, counting each sophomore ballot as 1.5 votes and each freshmen ballot as 1 vote.
ur doing this because there is 200 more freshmen then sophomores...and if u count each sophomore vote as 1.5, it would make up for the 200 more freshmen
5 0
3 years ago
Other questions:
  • Show that if A is​ invertible, then det Upper A Superscript negative 1det A−1equals=StartFraction 1 Over det Upper A EndFraction
    9·1 answer
  • The function describes the volume of a right circular cylinder of height 3 ft and radius r feet. find the instantaneous rate of
    14·1 answer
  • Jack has some marbles. He has ten more red marbles than blue marbles. He has fewer yellow marbles than blue marbles.
    11·1 answer
  • Write a real world problem that compares 0.4 and 0.29. Then solve the problem.
    12·2 answers
  • Why does the solution for an absolute value equation or inequality typically result in a pair of equations or inequalities?
    11·1 answer
  • The sum of 39 and a number
    10·1 answer
  • Quadrilateral OPQR is inscribed in circle N, as shown below. What is the measure of ∠PQR? (5 points)
    5·1 answer
  • Which sum or difference identity could be used to prove that sin(π + q) = -sin q
    15·2 answers
  • jolie brought balls of green and blue color thirty five percent of ball are blue if she brought total of 300 balls how many gree
    10·1 answer
  • After choir practice, Jamal and Bettina shared a pizza that was cut into 10 equal slices. Jamal ate 1/2 of the pizza, and Bettin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!