This data shows the number of sit-ups done by 27 students in a gym class.
58 62 49 52 75 86 88 54 56 61 85 48 77 60
47 58 62 73 78 69 65 84 59 67 53 84 50
Which histogram represents the data?

Answer: y = 3 or y=7

Step-by-step explanation:

[tex]y^{2} -10y+21[/tex]

what 2 factors of 21 can equal 10 when added together (1*21- no 3*7- yes)

Factor

[tex](y-3)(y-7)[/tex]

y-3=0

y=3

or y-7=0

y=7

Answer:

The horizontal line test.

Step-by-step explanation:

If you do the test, the horizontal line will intersect at 2 points.

Answer:

B

Step-by-step explanation:

elimination

4x - y = 8

6x + y = 2

--------------- +

10x = 10

x = 1

since x = 1, we can subtitute x to one of those equations

4x - y = 8

4(1) - y = 8

4 - 8 = y

y = 4 - 8

y = -4

x,y = 1,-4

Answer:

B is correct

Step-by-step explanation:

you add the two equations together. So 4x + 6x  equals what? 10x. we know that y and -y cancel each other out. and then we all know that 8+2 is 10. now we have 10x=10 so x=1. We replace x for one and then we have 4 - y =8 so y has to equal -4 and there you have your answer, b

Answer:

38 pound

STEP  BY STEP

Answer:

Step-by-step explanation:

hello :

the fractions  a/b   and c/d are equlivent if : ad =cb

Answer:

[tex]3x^2(5y^2-xy+25x^2)\\[/tex]

Step-by-step explanation:

[tex]15x^2y^2-3x^3y+75x^4\\\\3x^2(5y^2-xy+25x^2)\\[/tex]

3x² is the only facor with all 3 of the terms.

Answer:

I would divide each loaf into 4 pieces, which gives eight. There would be one piece left over.

Step-by-step explanation:

Answer: D) 2

Step-by-step explanation:

The standard deviation of the difference between the means of the two populations is given by:-

[tex]S.E.=\sqrt{\dfrac{\sigma^2_1}{n_1}+\dfrac{\sigma^2_2}{n_2}}}[/tex]

where [tex]n_1[/tex]= sample size of population 1

[tex]n_2[/tex]= sample size of population 2

[tex]\sigma^2_1[/tex]= variance of population 1

[tex]\sigma^2_2[/tex]= variance of population 2

As per given,

[tex]S.E.=\sqrt{\dfrac{112.5}{45}+\dfrac{54}{36}}}\\\\=\sqrt{4}\\=2[/tex]

Hence, the correct option is D) 2.

Answer:P = $ 25,375.00

Step-by-step explanation:

P = 4060 / ( 0.08 × 2 ) = 25375

P = $ 25,375.00

Answer:

It's C, I just wrote it out.

Answer:

λ

Step-by-step explanation:

Answer:

The desired z-score is 2.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

n(12,2.5)

This means that [tex]\mu = 12, \sigma = 2.5[/tex]

z score when x =17

This is Z when X = 17. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{17 - 12}{2.5}[/tex]

[tex]Z = 2[/tex]

The desired z-score is 2.

Answer:

The answer is C

Step-by-step explanation:

48/112 = 0.4285

convert and round it

0.4285 = %42.9

The percent of the 7th grade students were in favor of wearing school uniforms is 42.9%.

From the given table,

7th grade students who are in favor of wearing uniform = 48

Total 7th graders = 112

So, the percent of the 7th grade students were in favor of wearing school uniforms

= 48 / 112 x 100

= 12 / 23 x 100

= 42.85%

Learn more about Percentage here:

https://brainly.com/question/32197511

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Answer:

Step-by-step explanation:

Answer 1

Answer 2

Area = 1/2 * 6 * 11

Answer:

1.24

Step-by-step explanation:

i subtracted 1-1

Answer:

D) Just over 10% of students have a bird.?

Answer:

D

Step-by-step explanation:

Let the number be n.  Then "a number divided by 22" would be n/22 (Answer D)

The number divided by 22 can be written as x / 22, so option D is correct.

It is a fundamental operation in mathematics where you divide a number into smaller parts.

Given:

A number divided by 22,

Here, the divisor = 22

Assume the number is x

Then, dividend = x

Thus, expression can be written as,

dividend/divisor = x / 22

To know more about division:

https://brainly.com/question/27566440

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Answer:

-48/24 simplified version is -2

Step-by-step explanation:

Answer:

-60

Step-by-step explanation:

-8×5 = -40

-40/4 = -10

-10×6 = -60

Step-by-step explanation:

frist ordering the data

4,4,4,5,6,7,7,7,10,11 then

3. the most common ages are 4& 7

4. the range = high - low so 11 - 4 =7

5.the median is Nth/2 + Nth/2 +1 then

10th/2 +10th/2 +1

(5th +6th)/2 = median

(6 +7)/2 =13/2 = 6.5 is the median of children

Answer:

answer

Step-by-step explanation:

5%

.......................

Answer:

I’m not sure what the question is asking, the picture is blurry, Nassiya.

Step-by-step explanation:

Answer:

[tex] \frac{7}{8} [/tex]

Answer: look at the picture and I can’t solve y for you.

Step-by-step explanation: Hope this help :D

Answer:

Step-by-step explanation:

Sample scores : 105, 98, 101, 110, 96, 103, 104, 101, 98, 105, 112, 95, 105, 100, 108

Sample mean, xbar = 102.73

Standard deviation, s = 4.98

H0: μ = 98ttt

H1 : μ ≠ 98

Test statistic :

(xbar - μ) ÷ s/sqrt(n)

(102.73 - 98) ÷ 4.98 / sqrt(15)

t = 3.655

Pvalue from t score = 0.002599

When. Pvalue < α ; We reject the Null

We can conclude that significant evidence exists that average performance of students is not

Answer:

I = $4204.8

Step-by-step explanation:

Given that,

Principal, P = $43,800

Interest rate = 4.8%

Rate = 2 years

We need to find the interest that is paid back. We know that, simple interest is given by :

[tex]I=\dfrac{PRT}{100}[/tex]

Put all the values,

[tex]I=\dfrac{43800\times 4.8\times 2}{100}\\\\=\$4204.8[/tex]

So, the required interest is equal to $4204.8 .

Answer:

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