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
galina1969 [7]
2 years ago
8

Number Sense A bike helmet has a

Mathematics
2 answers:
Zarrin [17]2 years ago
6 0

Answer: The estimate is greater than the actual mass.

labwork [276]2 years ago
6 0

Answer: Elena is right, that is about 300 grams so her estimate is equal to the actual mass

Step-by-step explanation:

You might be interested in
If anyone answers ALL i will give all my points and will give Brainliest
Inga [223]
1: I can’t see one it’s cut out sorry :(
2:go down four horrizontal for each line making a rhombus
3: 3a:true 3b:true 3c:false 3D: false
4.PART A: Draw a square in the middle.
4. PART B: Say there are four right angles
5: Line, point, ray, line segment
6. There are 2 acute and 1 right
7. A B C
8: 1/4 1/6 1/8
9: 9a 9c and 9d
10: square and polygons first, then triangles because they have 4 sides while a triangle has 3
10 PART B: rectangles second, then the pentagons are third, the parallelogram is first, then the triangles because a rectangle has all right angles
11: she drew a square!
12: polygons without right angles
13: I can’t draw on your paper just draw three lines in the trapezoid
13: a c and d
6 0
3 years ago
Read 2 more answers
A survey of 1 comma 558 randomly selected adults showed that 522 of them have heard of a new electronic reader. The accompanying
sineoko [7]

Answer with explanation:

Let  p be the proportion of adults have heard of the new electronic reader.

Given claim : The accompanying technology display results from a test of the claim that 38​% of adults have heard of the new electronic reader.

i.e. p=0.38

Then , the set of hypothesis will be :-

H_0: p=0.38\\\\H_a:p\neq0.38

Since, the alternative hypothesis is two tailed , so the test is two-tailed test.

Also, it is given that the sample size : n=1558

Number of adults showed that they have heard of a new electronic reader=522

So the sample proportion for adults have heard of the new electronic reader : \hat{p}=\dfrac{522}{1558}\approx0.34



The test statistic for proportion is given by :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\\Rightarrow\ z=\dfrac{0.34-0.38}{\sqrt{\dfrac{0.38(1-0.38)}{1558}}}\\\\\\\Rightarrow\ z=-3.25279036541\approx-3.25

By using standard normal distribution table , the P-value for two tailed test corresponds to the obtained z-value ==0.0011541

6 0
3 years ago
Is 89 prime or composite
Ratling [72]
It is a prime number. 89=1×89 hope it helps
8 0
3 years ago
I NEED HELP PLEASE!!!
miskamm [114]

Answer:

hardhard

Step-by-step explanation:

3 0
3 years ago
To estimate the percentage of defects in a recent manufacturing​ batch, a quality control manager at General Foods selects every
Hoochie [10]

Answer:

B. Systematic

Step-by-step explanation:

<em>Since Quality Control Manager is selecting every 10th soup. This type of Sampling Method is called Systematic Sampling.</em>

Further,

If the whole population is divided into many groups(strata) such that between the group units are heterogeneous and within the group units are homogeneous then units are randomly selected from these groups. This type of sampling is called Stratified Sampling.

If the sampling is done by any criteria then this type of sampling method is called Systematic Sampling. Like observer is taken every 5th unit as a sample.

If the samples from the population are chosen randomly, where each and every unit has an equal chance of selection in a sample. This type of sampling is called Simple Random Sampling.

In Cluster Sampling the population is distributed into a distinct group (clusters) and one or more groups (clusters) are chosen as a sample then it is Cluster Sampling.

If the observers collect the sample as his\her convenience, then this type of sampling method is called Convenience Sampling.

5 0
3 years ago
Other questions:
  • Anika buys a pair of shin guards for $8.58 and serveral pairs of soccer socks for $4.29 per pair. If she spends 25.74 before tax
    14·1 answer
  • For the month of March in a certain​ city, 57​% of the days are cloudy. Also in the month of March in the same​ city, 55​% of th
    10·1 answer
  • (3m±4/5n)2<br>solve this question<br>​
    13·1 answer
  • If 16 counters are 4/9 then what is One
    10·1 answer
  • The value of the guitar has been found to be -80y + 800, where y is the number of years since it was released. a. By how much is
    5·1 answer
  • Which is the simplified form of (9c^-9)^-3<br> b 1/729 c^27
    14·1 answer
  • The diagram shows a regular dodecagon. Work out the size of one interior angle
    10·2 answers
  • Pls help me i will give brainliest to the right answers
    13·2 answers
  • Find the value of x. <br> (6x+8) <br> (7x-7)
    12·1 answer
  • PLEASE HELP
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!