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
Reil [10]
3 years ago
15

Answer fast for pts

Mathematics
2 answers:
NeTakaya3 years ago
7 0
  • Maria arrived at 8:30
  • It's can't be told that no one have arrived before her
  • She registered the times between 8:30 to 9:30 .
  • She hasn't registered the data of students who came before her .
  • So it's not a representative sample
sdas [7]3 years ago
4 0

Answer:

Since she arrived at 8:30 its not accurate because her records started at the time she arrived so she didnt get the times of the students that arrived before her

Step-by-step explanation:

Hope this helps:))

You might be interested in
write a number that is greater than 1 in scientific notation . Explain how you know it is greater than 1 .
Gemiola [76]

Answer: 9.3 because it’s a decimal .

Step-by-step explanation:

6 0
3 years ago
if an external point of a circle is at a distance equal to the diameter of the circle from the center of the circle, the length
jeka57 [31]

Let the radius of the circle be r. Then the line from the external point through the center of the circle which extends to the far point on the circle has length 3r .By the tangent - secant theorem

t^2 = 3r * r = 3r^2 ( where t is the length of the tangent).

So t = √(3r^2) = √3r answer.

7 0
3 years ago
An assembly line inspector inspected 340 machine parts. 323 of the parts passed inspection. What percent of the machine parts di
tester [92]

Answer:

5% did not pass inspection

Step-by-step explanation:

Given

Inspected= 340

Passed = 323

Required

Determine the percentage of parts that didn't pass inspection.

First, we need to calculate the number of those that didn't pass inspection.

Failed = Inspected - Passed

Failed = 340 - 323

Failed = 17

Next, we calculate the percentage as follows:

\% = \frac{Failed}{Inspected} * 100\%

The above formula is derived by dividing the number of parts that didn't pass inspection by the total machine inspected, then multiplied by 100%

So:

\% = \frac{17}{340} * 100\%

\% = \frac{17 * 100\%}{340}

\% = \frac{1700\%}{340}

\% = 5\%

<em>5% did not pass inspection</em>

6 0
3 years ago
How do you do elimination in systems of equations?
VMariaS [17]
Well, for solving system of equations, we can use either substitution where we plug one equation into the other, or elimination where we combine the equations.


- Using elimination, you would to eliminate one variable from both equations, so you automatically would get one equation with one variable!



4 0
3 years ago
If the vertex of a parabola is at the point (-2, 5), then the equation for the axis of symmetry for the parabola is x = -2. True
balandron [24]

Answer:

true

Step-by-step explanation:

thats really it i believe its true

6 0
2 years ago
Other questions:
  • Solve for x in the equation x^2+4x-4 = 8.
    11·1 answer
  • Use inductive reasoning to describe the pattern. Then find the next two numbers in the pattern.
    6·2 answers
  • Am solving this problem correct
    15·2 answers
  • What is the slope of the line that passes through the points (-8, -6) and (2, -3)​
    12·2 answers
  • An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
    14·1 answer
  • How long is a wire reaching from the top of a 12-foot pole to a point 6 feet from the base of the pole?
    15·2 answers
  • What is the positive solution to this equation?<br> 4x2 + 12 x= 135
    8·1 answer
  • Anyone help me ASAP, its due in an hour, plz show all the working, THANK YOU SO MUCH
    5·1 answer
  • Need answer ASAP pls
    13·1 answer
  • Give the exact value of -280°​ in radians.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!