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
Mazyrski [523]
3 years ago
12

X-2y+=4 What is the ordered pair (__,-3),(4,__)

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
4 0
(-2,-3)

substitute y for (__,-3)
x-2(-3)=4
x+6=4
subtract 6 from both sides
x=-2

(4,0)

substitute x for (4,__)
4-2y=4
subtract 4 from both sides
-2y=0
divide -2 from both sides
y=0
You might be interested in
A sphere and a cube have equal surface areas. The length of one edge of the cube is 1.11 meters. What is the radius of the spher
Nady [450]

Answer:

  0.767 m

Step-by-step explanation:

The area of a cube of edge length s is given by ...

  A = 6s^2

The area of a sphere of radius r is given by ...

  A = 4πr^2

When these two are equal, we have ...

  6s^2 = 4πr^2

  r^2 = 6s^2/(4π)

  r = s·√(3/(2π)) ≈ s·0.690988

The radius of the sphere is about ...

  r ≈ 0.690899×1.11 m

  r ≈ 0.767 m . . . . approximate sphere radius

3 0
3 years ago
A student believes that less than 50% of students at his college receive financial aid. A random sample of 120 students was take
marusya05 [52]

Answer:

p= 0.9995 and we can conclude that students receiving aid is more than 50% according to the sample results in 2% significance level.

Step-by-step explanation:

H_{0}: less than or equal 50% of students at his college receive financial aid

H_{a}: more than 50% of students receive financial aid.

According to the nul hypothesis we assume a normal distribution with proportion 50%.

z-score of sample proportion can be calculated using the formula:

z=\frac{X-M}{\frac{s}{\sqrt{N} } } where

  • X is the sample proportion (0.65)
  • M is the null hypothesis proportion (0.5)
  • s is the standard deviation of the sample (\sqrt{0.5*(1-0.5)})
  • N is the sample size (120)

then z=\frac{0.65-0.50}{\frac{\sqrt{0.25}}{\sqrt{120} } } ≈ 3,29

thus p= 0.9995 and since p<0.02 (2%), we reject the null hypothesis.

4 0
3 years ago
4x 2 −28x+40 factored completely plzzzzz help mee
blagie [28]

Answer: 4( x - 5)( x - 2)

Step-by-step explanation:

4x^2 -28x + 40

4 ( x - 5)(x - 2)

4 0
3 years ago
Read 2 more answers
Please help me with the questions in the image
elena-s [515]
A) the image on the lower left is correct. Because the equation is set up as “F=“, F goes on the y-axis. The y-intercept is positive 32.

B) the slope is 9/5 because the equation is in the form of y=mc+b, where m is the slope. F increases 9/5 degrees for each increase of 1 C. The F-intercept is 32 and it represents the temperature 32 F corresponding to 0 C.



5 0
3 years ago
Explain Jasmine’s mistake. <br><br> 3x + 2<br> 35 + 2 =<br> 37
Slav-nsk [51]

Answer:

nothing times 3 is 35 so your sum cant equal 37

Step-by-step explanation:

hope this helps in some way

5 0
3 years ago
Other questions:
  • Find the value of x<br> and classify the triangle
    14·2 answers
  • Someone solve this please.
    13·1 answer
  • A great white shark weighted 4,302 pounds. This weight was 3 times the weight of a blue marlin fish. What was the weight of the
    10·2 answers
  • FIND THE MEASURE OF EACH MISSING ANGLE HURRY DUE AT 10
    15·1 answer
  • All of the following expressions are equivalent except _____.
    5·1 answer
  • The manager of a furniture factory finds that it costs $3000 to manufacture 80 chairs in one day and $4800 to produce 280 chairs
    7·1 answer
  • R/3+2=21 solve for r
    8·1 answer
  • There are 100 centimeters (cm) in every meter (m).
    15·1 answer
  • There is a pair of parallel sides in the following shape.<br> what is the area of the shape? units^2
    7·1 answer
  • Writing an Equation from a Table
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!