Determine the value of x.
Options:
03√2
03√3
3
6

For a sample population of size, n =5, sx = 20 and sx² = 120, the sum of squared deviation is 40.

Therefore, the answer is 40.

Given a sample population of 5 scores, that is n = 5.

sx = ∑x = 20

sx² = ∑x² = 120

Thus mean can be calculated by

mean, x⁻ = ∑x/ n

x⁻ = 20/ 5

x⁻ = 4

The sum of squared deviations

ss = ∑( x - x⁻)²

ss = ∑( x² -2×x×x⁻ + x⁻²)

ss = ∑x² -2×x⁻×∑x + ∑x⁻²

ss = ∑x² -2×x⁻×∑x + nx⁻²

ss = 120 - 2×4×20 + 5×4²

ss = 40

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Answer:

527 grams

Step-by-step explanation:

Use the density formula, d = m/v

Plug in the density and volume, then solve for m (mass):

d = m/v

0.85 = m/620

527 = m

So, the mass is 527 grams

Answer:

not a function

Step-by-step explanation:

if x values repeat its not a function

Answer:

It’s 137.39

Step-by-step explanation:

All the equation shown as inequalities:

3h-7-19 ; h≥14 ; h=60 ; 3h +12 < 18 ; 20=h+h ; 8> h​

When resolving an inequality, you can do one of the following:

Thus, all the equation shown as inequalities:

3h-7-19 ; h≥14 ; h=60 ; 3h +12 < 18 ; 20=h+h ; 8> h​

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The complete question is-

Which of the options below are inequalities? Choose all of the correct answers.

3h-7-19 ; h≥14 ; h=60 ; 3h +12 < 18 ; 20=h+h ; 8> h​

The graphs of the three functions on the graph can be compared in a few different ways.

The square root and quadratic function share a y-intercept of 0, since the quadratic function is y = x2 and the square root function is y = √x. The square root and absolute value function share an x-intercept of 0, since the equation for the absolute value function is y = |x|.The range of the square root and quadratic function are different, since the maximum of the quadratic function is at (0, 0), while the maximum of the square root function is at (1, 1). The range of the square root and absolute value function are also different, since the maximum of the absolute value function is at (0, 0), while the maximum of the square root function is at (1, 1).Finally, the quadratic function and the absolute value function have a minimum, which is at (0, 0). On the other hand, the square root function has a maximum, which is at (1, 1).

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Answer: Its A and D

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

a^2+b^2=c^2

7^2+11^2=c^2

49+121=c^2

170=c^2

then square it

c=13

7,11,13 is a pythagorean triple

Answer:

both answers you have put in are correct

Step-by-step explanation:

7^2=49

11^2=121

121+49=170

square root of 170 is the long side

not a pythagorean triple because square root of 170 does not come out as a whole number (no decimal/fraction)

is it ~13.0384

The test used to determine whether or not first-order autocorrelation is present is the Durbin-Watson test.

1. Fit a regression model to the data.

2. Obtain the residuals, which represent the differences between the observed values and the predicted values from the regression model.

3. Calculate the Durbin-Watson statistic, which is a ratio of the sum of squared differences between adjacent residuals to the sum of squared residuals.

4. Compare the calculated Durbin-Watson statistic to critical values from a Durbin-Watson table or use statistical software to determine if there is significant autocorrelation.

5. The Durbin-Watson statistic ranges from 0 to 4, where a value around 2 suggests no autocorrelation, a value below 2 indicates positive autocorrelation, and a value above 2 indicates negative autocorrelation.

6. By analyzing the Durbin-Watson statistic, researchers can make conclusions about the presence or absence of first-order autocorrelation in the regression model.

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Answer:

  16x⁸y³

Step-by-step explanation:

You want to simplify (4x⁴y³)(4x⁴).

The relevant rule of exponents is ...

  (a^b)(a^c) = a^(b+c)

The simplified form is ...

  \((4x^4y^3)(4x^4) =(4\cdot4)x^{4+4}y^3=\boxed{16x^8y^3}\)

Answer: To determine the marginal cost of the third taco for Jeremy, we need to compare the cost of buying it individually to the cost of buying it as part of the value meal.

Buying two tacos individually:

Buying the value meal with three tacos:

To calculate the marginal cost, we subtract the cost of buying the value meal from the cost of buying two tacos individually:

The negative value indicates that buying the value meal is more cost-effective than buying the third taco individually. Therefore, the marginal cost of the third taco for Jeremy would be $0 (option A).

True.

A 95% confidence interval for the population mean means that if we draw multiple samples from the same population and construct confidence intervals for the mean using each sample, then 95% of those intervals will contain the true population mean. This is because the confidence interval is computed based on the sample mean and the sample's standard deviation, which are random variables that are expected to vary from sample to sample. Therefore, we cannot be 100% certain that the true population mean is within any particular confidence interval, but we can be confident (95% confident, in this case) that most of the intervals we construct will contain the true mean. A 95% confidence interval for the population mean implies that if samples are drawn repeatedly and confidence intervals for μ are constructed, then 95% of the confidence intervals computed will contain the population mean. This means that you can be 95% confident that the true population mean lies within the calculated interval.

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Answer:

3

Step-by-step explanation:

If 6 numbers have a mean value of 10, it means that the sum of the numbers divided 6 is equal to 10. This can be expressed as:

x÷6=10

x=60

The new number added will be the 7th number and now the mean is 9. You have to ask what number divided by 7 is equal to 9? This can be expressed as:

y÷7=9

y=63

63-60=3

So the new number added is 3

Answer:

3

Step-by-step explanation:

Mean is calculated as

mean = \(\frac{sum}{count}\)

Given the mean of 6 numbers is 10, then

\(\frac{sum}{6}\) = 10 ( multiply both sides by 6 )

sum = 60

When another number x is added then count is 7

\(\frac{60+x}{7}\) = 9 ( multiply both sides by 7 )

60 + x = 63 ( subtract 60 from both sides )

x = 3 ← the number added

Answer:

m puq

Step-by-step explanation:

Prediction of next time = 25

If take all four previous run times into consideration, the prediction is (((40 + 20) / 2 + 40) / 2 + 15) / 2 = ((30 + 40) / 2 + 15) /2  = (35 + 15) / 2 = 25  

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Answer:

130.92

Step-by-step explanation:

8.25(12)+3.99(8)

99+31.92

130.92

OB. The set is a subspace of P₂. The set contains the zero vector of P₂, the set is closed under vector addition, and the set is closed under multiplication by scalars.

To show this, we need to verify the three conditions for a set to be a subspace:

The set contains the zero vector: The zero vector of P₂ is 0t² = 0, which is in the set since any real number multiplied by 0 is 0.

The set is closed under vector addition: Let p(t) = at² and q(t) = bt² be two polynomials in the set. Then p(t) + q(t) = (a +

The statement that best describes the Central Limit Theorem is (a) The distribution of means of random samples pulled from a population will be normally distributed if the sample size is large enough.

The Central Limit Theorem (CLT) states that if repeated random samples is taken from a population with a finite mean and standard deviation, then the distribution of the sample means will approach a normal distribution, even if the original population is not normally distributed.

The larger the sample size, the more closely the sample means will approximate a normal distribution.

which means that, for example, if we take multiple samples of size 100 from a population and calculate the average of each sample, the distribution of those sample means will be approximately normally distributed, regardless of the original shape of the population.

The given question is incomplete , the complete question is

Which best describes what the Central Limit Theorem states ?

(a) The distribution of means of random samples pulled from a population will be normally distributed if the sample size is large enough.

(b) All distributions have the same mean.

(c) The distribution of standard deviations of random samples pulled from a population will be normally distributed if the sample size is large enough.

(d) All distributions are close enough to normally distributed to use the normal distribution as a approximation.

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Answer:

72

Step-by-step explanation:

Just add up 45.3+26.7

45.3 + 26.7 = 72

Answer:

y= 72°

Step-by-step explanation:

If you add the two degrees you get 72.

45.3+26.7=y

45+26=71

.3+.7=1

71+1=72

Hope this helped.

A brainliest is always appreciated.

Fοr x rοunding tο the nearest hundredth the value οf x = 0.115.

The pοwer tο which a number must be increased in οrder tο οbtain additiοnal values is referred tο as a lοgarithm. The easiest apprοach tο express enοrmοus numbers is this manner.

Many significant characteristics οf a lοgarithm demοnstrate that additiοn and subtractiοn lοgarithms may alsο be represented as multiplicatiοn and divisiοn οf lοgarithms. "The lοgarithm οf a pοsitive real integer, nοt equal tο οne, a, with regard tο base b

The given expressiοn is:

10⁵ˣ = 88

Taking lοg οn bοth sides we have:

lοg(10⁵ˣ) = lοg(88)

Using the pοwer rule:

5x * lοg(10) = lοg(88)

5x = lοg(88)

x = lοg(88) / 5

x = 0.115

Hence, rοunding tο the nearest hundredth the value οf x = 0.115.

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Answer: $521

Step-by-step explanation:

Answer:

It's not that hard so lets get a divorce bro

Step-by-step explanation:

The equivalent expression of this 19 - 6(-k + 4) will be 6k + 5.

Given that:

Expression, 19 - 6(-k + 4)

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less complicated.

Simplify the expression, then we have

⇒ 19 - 6(-k + 4)

⇒ 19 + 6k - 24

⇒ 6k - 5

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Answer:

7/9

Step-by-step explanation:

The total of livestock can be expressed with the fraction: 9/9

We know that 2/9 are younger than 2 years, so we can answer the question thanks to this operation:

9/9 - 2/9 = 7/9

Obtuse equilateral, because an obtuse triangle needs one angle that is greater than 90 degrees, but in an equilateral triangle all the angles are 60 degrees because all the sides are equal.

If all sides are equal, then all their non-touching angles are equal.

Hope this helps!

Answer:

what would you like?

More information needs to be provided.

Answer:

Question Number 1: C. -58 meters

Question Number 2: 1.45 lbs

Step-by-step explanation:

Question Number 1:

40 - 12 = 28 meters below sea level

28 + 30 = 58 meters below sea level . So respectively its negative, so -58 would be your answer .

Question Number 2:

To figure out how many pounds of carrots are in each cake, divided 7.25 by 5. That equals 1.45. So one cake needs 1.45 pounds of carrots.