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
Eduardwww [97]
3 years ago
12

This table represents the proportional relationship between the number of boxes and the number of magnetic cubes held by the box

es.
What is the unknown value representing the unit rate?
A. 8
B. 125
C. 140
D. 156

Mathematics
1 answer:
Zinaida [17]3 years ago
3 0
Your answer would be C.
Have a good day!
You might be interested in
A six-sided die is rolled. What is the probability of landing on a number less than 3? Put our answer in simplest form.
V125BC [204]

Answer:

1/3

Step-by-step explanation:

2/6

1/3

8 0
3 years ago
Read 2 more answers
Wouldn't this be true ?
Lana71 [14]
I think this is true
4 0
3 years ago
Read 2 more answers
A circle is the set of all points that are the same distance from one given point. find an example that contradicts this definit
Troyanec [42]

A circle exists as a curve sketched out by a point moving in a plane. The circle's perimeter exists the length of the line of the circle that creates the circle. It exists generally named the circumference of the circle.

<h3>What is a circle?</h3>

A circle exists as a curve sketched out by a point moving in a plane so that its distance from a given point exists constant; alternatively, it exists as the shape created by all points in a plane that exists at a set distance from a provided point, the center.

A.) The statement that rejects this characterization of the circle exists that the given point should be at the circle's center.

B.) An illustration of an indefinite term exists in the perimeter of the circle, The circle's perimeter exists the length of the line of the circle that makes the circle. It exists generally named the circumference of the circle.

To learn more about Circle refer to:

brainly.com/question/11833983

#SPJ4

4 0
2 years ago
A radio manufacturer believes that the length of life of WPPX model radio is normal with µ=12 years and σ=2.5 years. (a) What pe
kicyunya [14]

Answer:

(a) 5.48%

(b) 17.82 years

(c) 21.19%

(d) 15.21 years

Step-by-step explanation:

z = (x-μ)/σ,

where

x is the raw score

μ is the population mean

σ is the population standard deviation.

µ=12 years and σ=2.5 years.

(a) What percent of the radios will function for more than 16 years?

For x = 16

z = 16 - 12/2.5

z = 1.6

Probability value from Z-Table:

P(x<16) = 0.9452

P(x>16) = 1 - P(x<16)

1 - 0.9452

= 0.054799

Converting to percentage = 0.054799 × 100

= 5.4799%

Approximately = 5.48%

(b) Suppose the company decides to replace 1% of the radios. Find the length of the guarantee period. i.e. find X.

find the z score of the 99th percentile = 2.326

Hence:z = (x-μ)/σ

2.326 = x - 12/2.5

Cross Multiply

2.326 × 2.5 = x - 12

5.815 = x - 12

x = 12 + 5.815

x = 17.815

Approximately = 17.82 years

(c) What percent of the radios that will fail to satisfy the guarantee period of 10 years? , i.e. less than 10 years?

When x < 10

Hence,

z = 10 - 12/2.5

z = -0.8

Probability value from Z-Table:

P(x<10) = 0.21186

Converting to percentage

0.21186 × 100

= 21.186%

Approximately = 21.19%

(d) If 10% of the radios will function for more than X years, find X.

The z score would be : 100 - 10%

= 90th percentile z score

We find the z score of the 90th percentile = 1.282

Hence:z = (x-μ)/σ

1.282 = x - 12/2.5

Cross Multiply

1.282 × 2.5 = x - 12

3.205 = x - 12

x = 12 + 3.205

x = 15.205

Approximately = 15.21 years

4 0
3 years ago
If f x equals x -3 + g x equals 1 - x 2 - 9 find ( f og) (x and give any restrictions on its domain
evablogger [386]
\begin{gathered} f(x)=x-3 \\ g(x)=\frac{1}{x^2-9} \\ (\text{fog)(x)}=\frac{1}{x^2-9}-3 \end{gathered}

the denominator cannot be zero, because the division by zero is not defined, therefore:

\begin{gathered} x^2-9=0 \\ \text{Solving for x:} \\ x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}

Therefore the domain of (f o g)(x) is:

D\colon(-\infty,-3)\cup(-3,3)\cup(3,\infty)

3 0
1 year ago
Other questions:
  • An angle is formed by:
    10·2 answers
  • What's the equation of the line with a slope of -3 (m=-3) that passes through (-1,2)
    7·1 answer
  • Please help! either one would be appreciated.
    14·2 answers
  • Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. The height, h(t), in meters (as it
    7·2 answers
  • A simple random sample of size n=250 individuals who are currently employed is
    6·1 answer
  • Please Help Me To Solve For X
    15·1 answer
  • Use the table to answer the question below.
    14·2 answers
  • Manual is a word processor operator and makes $11.50 an hour. How much is his gross earnings for one week if he worked a total o
    11·1 answer
  • Each day, Valerie charges her lunch account for her lunch. If the cost of lunch is $3, then by how much has her lunch account be
    13·1 answer
  • Alannah, Colin and Hannah visit the park and collect conkers and acorns.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!