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Vilka [71]
2 years ago
8

someone solve this question for me with detailed explanation and step by step so i can grasp the concept

Mathematics
1 answer:
natta225 [31]2 years ago
3 0

Answer:

3rd grade

Step-by-step explanation:

Given that the values are different types (fractions, decimals, and percentages), it would be helpful to convert them to the same type of value.

Converting everything to percentages seems more convenient.

Since 61.24% is already a percentage, we simply have to convert 0.52, 25/36, and 0.5274444 (I wrote 0.5274 like this since the 4 is a repeating value).

To convert 0.52, we simply multiply by 100:

0.52 * 100 = 52%

For 25/36, we need to know its decimal form and multiply by 100 to find the percentage:

25 / 36 = 0.6944 * 100 = 69.44%

For 0.5274444, we also multiply by 100:

0.5274444 * 100 = 52.74444

Thus, we have 52% (2nd grade), 69.44% (3rd grade), 61.24% (4th grade), and 52.74444% (5th grade).

3rd grade has the highest portion of students

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What’s the area of the shape?
34kurt

Answer:

Hello! answer: 113.04

Step-by-step explanation:

It looks like you already selected the correct answer! What you do to find it is radius squared × 3.14 so

6 × 6 = 36 36 × 3.14 = 113.04 therefore that is the answer Hope that helps!

5 0
3 years ago
A PS5 costs $500. If it's marked down 5% for the holiday season, how
galben [10]

Answer:

475

Step-by-step explanation:

6 0
3 years ago
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P and q are complex numbers such that |p|=2/5x+1 , |q|=x+1 , and |p+q|=3x+2 .
IrinaVladis [17]

Answer:

Step-by-step explanation:

Given that,

|P| = 2x / 5 + 1

|Q| = x + 1

|P+Q| = 3x + 2

We know that, from Cauchy inequalities

|P| + |Q| > |P+Q|

(2x / 5) + 1 + x + 1 > 3x + 2

(2x / 5) + 2 + x > 3x + 2

Multiply through by 5

2x + 10 + 5x > 15x + 10

Collect like terms

2x + 5x - 15x > 10 -10

-8x > 0

Then,

Divide both side by -8, since we are dividing with a negative number the inequality sign will change

Then,

x < 0 first condition

Note that,

|P| > 0

Then,

2x / 5 + 1 > 0

2x / 5 > -1

2x > -5

x > -5/2

Also,

|Q| > 0

x + 1 > 0

x > -1

Also

|P+Q| > 0

3x + 2 > 0

3x > -2

x > -2 / 3

So, comparing the four conditions

We see that x ranges from -5/2 to 0, this range covers all the other ranges

(-5/2, 0)

The first answer is correct

7 0
3 years ago
Which distribution is used to test the claim that women have a higher mean resting heart rate than men?
xeze [42]

This question is incomplete, the complete question is;

Assume that two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Which distribution is used to test the claim that women have a higher mean resting heart rate than men?

A.t

B.F

C.Normal

D. Chi-square

Answer:

A) t  test

Step-by-step explanation:

A t-test uses sample information to assess how plausible it is for the population means μ1​ and μ2​ to be equal.

The formula for a t-statistic for two population means (with two independent samples), with unknown population variances shows us how to calculate t-test with mean and standard deviation and it depends on the assumption of having an equal variance or not.

If the variances are assumed to be not equal,

he formula is:

t =  (bar X₁ - bar X₂) / √( s₁²/n₁ + s₂²/n₂ )

If the variances are assumed to be equal, the formula is:

t =  (bar X₁ - bar X₂) / √ (((n₁ - 1)s₁² + (n₂ - 1)s₂²) / (n₁ + n₂ - 2)) ( 1/n₁ + 1/n₂)

it called t-test for independent samples because the samples are not related to each other, in a way that the outcomes from one sample are unrelated from the other sample.

hence option A is correct. t test

4 0
3 years ago
You have $15 and earn $0.25 for each cup of orange juice you sell. Write an equation in two variables that represents the total
Bess [88]

$15+$0.25j= $A.

thats it

6 0
4 years ago
Read 2 more answers
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