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
Nataliya [291]
3 years ago
11

Round this number to two significant figures. 72.8 1. 72 2. 73 3. 73.0 4. 74

Mathematics
1 answer:
marishachu [46]3 years ago
8 0
The answer is 73 because 8 is more than 5 so it rounds up to be 73
You might be interested in
Bacteria A has a growth rate of 0.68% per minute. Bacteria B has a growth rate of 0.012% per second. Determine which bacterium h
maksim [4K]

Answer:

bacteria A

Step-by-step explanation:it is growing at a faster rate

8 0
3 years ago
Read 2 more answers
Which of the following equations has the same solutions as the equations 3x+2y=-12
Marianna [84]

B, C, E, F

<h2>Explanation:</h2>

In this problem, we have the following equation of a line written in Standard form:

3x+2y=-12

So  we need to choose the equations that has the same solutions as this equation. If we multiply each equation by a constant term and find the same solution as the given equation, then they will have the same solution. This is only true fro options B, C, E and F.

Option B.

-3x-2y= 12 \\ \\ Multiply \ both \ sides \ by \ -1: \\ \\ (-1)(-3x-2y)=(-1)(12) \\ \\ 3x+2y=-12

So we get the same given equation. This option is valid!

Option D.

15x+10y= -60 \\ \\ Multiply \ both \ sides \ by \ 1/5: \\ \\ (\frac{1}{5})(15x+10y)=(\frac{1}{5})(-60) \\ \\ 3x+2y=-12

So we get the same given equation. This option is valid!

Option E.

6x+2y= -12 \\ \\ Multiply \ both \ sides \ by \ 1/2: \\ \\ (\frac{1}{2})(6x+2y)=(\frac{1}{2})(-24) \\ \\ 3x+2y=-12

So we get the same given equation. This option is valid!

Option F.

1.5x+y= -6 \\ \\ Multiply \ both \ sides \ by \ 2: \\ \\ (2)(1.5x+y)=(2)(-6) \\ \\ 3x+2y=-12

So we get the same given equation. This option is valid!

For the other options, there is no any constant term that multiplies both sides of the equation and gives us the same given equation.

<h2>Learn more:</h2>

About this subject: brainly.com/question/8810210

#LearnWithBrainly

7 0
3 years ago
The data shows the speed, in miles per hour, of motorists on a stretch of road.
melomori [17]

Answer:

i. 18 miles per hour is an outlier

ii. the outlier decreases the mean speed

Step-by-step explanation:

An outlier in a given data is one of the values that is far greater or lesser compared to others. It affect the mean and standard deviation of a given data significantly.

From the given data, 18 is far too small compared to other values. This is certainly an outlier. This would affect the mean speed by decreasing the value.

An interquartile range is a measure of differences among data by dividing a set of given data into quartile. Increasing the value of the outlier would increase the interquartile range.

k/jkjln/kjln/j

7 0
3 years ago
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS CORRECTLY PLEASE HELP!!!
professor190 [17]

52 kilometers in 4 hours = 52 x 4 = 208 km in 4 hours

Total of 5 hours = 208 km + 62 km = 270 km

Average speed = 270 km / 5 hours = 54 km per hour

Answer

54 km per hour

5 0
3 years ago
The table below shows randy breuers height in inches leading into his teen years. The graph below displays a scatter plot of the
-Dominant- [34]
The least-square regression line has a slope of:

m=(nΣxy-ΣyΣx)/(nΣx²-ΣxΣx)

and a y-intercept of:

b=(Σy-mΣx)/n

In this case: n=7, Σxy=4899, Σy=391, Σx=85, Σx²=1153 so

m=(7(4899)-391*85)/(7(1153)-85*85))=1058/846

b=(391*846-85*1058)/(7*846)=34408/846

So the line of best fit is:

y=(1058x+34408)/846  and if we approximated this as your answers see to have done....

y=1.25x+40.67
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the quotient: (5x3 − 2x2 + x − 4) ÷ (x − 3)
    14·1 answer
  • In the diagram, the measure of angle 9 is 85°.
    10·2 answers
  • A contractor charges $227 to tile an 80-square-foot patio and $467 to tile a 180-square-foot patio. The contractor charged a cus
    15·1 answer
  • √secA+tanA/√secA-tanA × √cosecA-1/√cosecA+1=1
    7·1 answer
  • 4 - Q = -2 what is Q
    5·2 answers
  • What time is shown in the clock
    15·2 answers
  • You are ordering a new home theater system that consists of a TV, surround sound system, and DVD player. You can choose from 14
    6·2 answers
  • Round 1,129.872 to 2 decimal places
    9·2 answers
  • Can someone please help?
    14·2 answers
  • The tip of a windshield wiper travels a distance of 31 inches in one 90 revolution. What is the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!