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ratelena [41]
3 years ago
5

Jayden asked his classmates, "How many days do you exercise in a typical

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

13

Step-by-step explanation:

There is 13 dots.

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Georgia spent 150 minutes on her Maths homework last week.
vladimir2022 [97]

Answer:

last week = 150 minutes

this week = 162 minutes

changes = 162-150

= 12 minutes

percentage of changes = (12/150) × 100

= 8%

6 0
3 years ago
Shape 2
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Answer c venue hiddenwords was your gonna night you want
7 0
4 years ago
A new anxiety medication has been manufactured and a study is being conducted to determine whether its effectiveness depends on
Irina18 [472]

The test statistics is used to determine if the anxiety medication can happen under a null hypothesis

The test statistics that is an appropriate hypothesis test is z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}

<h3>How to determine the test statistic</h3>

<u>40 milligrams of medication</u>

Patients = 60

Lower stress level patients = 21

The mean of this medication is:

\bar x = \frac{x}{n}

So, we have:

\bar x_1 = \frac{21}{60}

\bar x_1 = 0.35

<u>75 milligrams of medication</u>

Patients = 85

Lower stress level patients = 34

The mean of this medication is:

\bar x = \frac{x}{n}

So, we have:

\bar x_2 = \frac{34}{85}

\bar x_2 =0.4

The test statistic is then calculated as:

z =\frac{\bar x_1 - \bar x_2}{\sqrt{\frac{\bar x_1(1 - \bar x_1)}{n_1} + \frac{\bar x_2(1 - \bar x_2)}{n_2}}}

The equation becomes

z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}

Hence, the test statistics that is an appropriate hypothesis test is z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}

Read more about test statistic at:

brainly.com/question/15980493

7 0
2 years ago
How can you use place value when using partial quotients?
Vesnalui [34]
Because u have to multiply by ten first
4 0
4 years ago
I don’t know how to figure out the ratio of the areas. The area for HGEF is 60.5 (121/2) and the area for JKLM is 378.125 (3025/
natima [27]

Answer:

25 : 4

Step-by-step explanation:

Given 2 similar figures with ratio of sides = a : b , then

ratio of area = a² : b²

For the given figures the ratio of corresponding sides is

JK : EF = 20 : 8 = 5 : 2 , thus

ratio of areas = 5² : 2² = 25 : 4

3 0
3 years ago
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