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
Serggg [28]
3 years ago
8

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using th

e table. A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1025 h with a standard deviation of 88 h. What percent of these light bulbs will last as follows? (Round your answers to one decimal place.) (a) at least 940 h
(b) between 850 and 900 h ​

Mathematics
1 answer:
hodyreva [135]3 years ago
3 0
I think the answer us A b doesn’t adds up
You might be interested in
Which transformation is a translation?
astra-53 [7]

Answer:

[2] Translation

[4]Transformation

Step-by-step explanation:

Translation is just moving the shape.

Transformation is changing the shape and tilting it changed the shape.

7 0
3 years ago
- 2a + 5b - 3c + 2a + b
kifflom [539]
The answer would be 6b-3c because a would cancel out and be 0
6 0
3 years ago
Read 2 more answers
150 parents were surveyed. 26% said that the kids were noddy and 70% said their kids were nice. How many parents didn't answer w
alexandr1967 [171]

Answer:

The parents who didn't answer with either naughty and nice are <u>6</u>.

Step-by-step explanation:

Given:

150 parents were surveyed. 26% said that the kids were naughty and 70% said their kids were nice.

Now, to find parents who didn't answer with either naughty and nice.

<em>So, as given in question:</em>

<em>70% said that their kids are naughty.</em>

<em>26% said that their kids are nice.</em>

So, to get the percentage of parents who didn't answer we subtract.

<em>Thus, the percentage of  parents who didn't answer with either naughty and nice:</em>

100% - (70% + 26%)

100% - 96% = 4%.

Hence, 4% of parents didn't answer.

Now, to get how many  parents didn't answer we calculate the percentage of the total who didn't answer:

<em>Total parents surveyed = 150.</em>

<em>Parents who didn't answer =  4% of the total parents surveyed.</em>

Parents\ who\ didn't\ answer = 4\% of 150.

Parents\ who\ didn't\ answer = \frac{4}{100}\times 150.

Parents\ who\ didn't\ answer = \frac{600}{100}.

Parents\ who\ didn't\ answer = 6.

Therefore, the parents who didn't answer with either naughty and nice are 6.

8 0
3 years ago
3 1/7 x 2 2/8 (multiply fractions)
k0ka [10]

Answer:

.214 if it is to 3 decimal places.

5 0
3 years ago
Why are the solutions to the proportions 50/x =10/20 and 10/50=20/x the same
ratelena [41]
With cross multiplication you can find that they are the same. In both equations, x would be 100. 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Mr. and Mrs. Gomez are buying carpet for their​ square-shaped bedroom, which measures 66 yd along each wall. The carpet is ​$242
    5·1 answer
  • Evaluate this expression: 3x + 9x -5
    11·1 answer
  • What does X equal for this question?
    8·1 answer
  • Solve for <br> e. show your work. ( 264 3 x 5 ) ÷ 3 = e
    9·1 answer
  • What is the percentage of the given number 35/50
    10·2 answers
  • DEF with vertices D(2, 5), E(6, 4), and F(3, 3), is reflected across the line y=x
    8·1 answer
  • There are 12 female students and 18 male students in a class. Which of the following expresses the ratio of female students to m
    14·1 answer
  • Someone answer these for me-​
    5·2 answers
  • Find the product. 87.8 x 2.8 (
    12·2 answers
  • A word problem for 460 - 65x &lt; 100
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!