Which set of numbers does -2.9 belong to?

Which graph represents the function?

Setler79 [48]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

1) $f(x)=(x+2)^2$ -----> For the interval (-∞,-1)

Note The value of x=-1 is a open circle ( is not included)

This is a vertical parabola open upward

The vertex is a minimum

The vertex is the point (-2,0)

2) $f\left(x\right)=\left|x\right|+1$ ----> For the interval [-1,1]

Note The value of x=-1 and x=1 are closed circle ( both values are included)

This is an absolute function open upward

The vertex is the point (0,1)

3) $f(x)=-\sqrt{x}$ -----> For the interval (1,∞)

Note The value of x=1 is a open circle ( is not included)

The value of f(x) is negative for all values of x

therefore

The graph in the attached figure

6 0

3 years ago

Meghan paid $9,212 for medical insurance and also had $5,700 in medical expenses last year. Her medical insurance covered 80% of

Lerok [7]

Answer:

Meghan cannot claim any amount as a medical deduction.

Step-by-step explanation:

Given that:

Amount paid by Meghan for insurance = $9212

Meghan's medical expenses = $5700

Her medical insurance covers 80% of these expenses

Meghan's adjusted gross income = $65,432

Her medical expenses that are not covered under medical insurance is:

$= 5700 \times (1- \dfrac{80}{100})$

$= 5700 \times (0.2)$

= $1140

Similarly, 7.5% of her gross income is;

= 65,432 × (7.5/100)

=$4907.4

Since $1140 < $4907.4

The amount of $1140 does not exceed $4907.4

Thus, Meghan cannot claim any amount as a medical deduction.

7 0

3 years ago

HELP ASAP HELP PLZ!!!!!!!!!!<br><br> if pic don't come thru wait for me to edit it

Vanyuwa [196]

Your answer will be the 1st one because it says the distributice property and that is when you multiply a number outside a parenthesis and the number one shows that and also as the right numbers, because 2 fits in 34 seventeen(17) times and 2 fits in 16 eight(8) times, so your answer would be 2(17+8)

Hope this helps

5 0

3 years ago

Use Word to documents your comparison of the two years and explain your findings in at least two paragraphs. Including: Explain

pickupchik [31]

In statistics, the standard deviation deviation may be a measure of the quantity of variation or dispersion of a group of values. The margin of error may be a statistic expressing the number of sampling error within the results of a survey. The correlation could be a statistical measure of the strength of the connection between the relative movements of two variables.

Given nothing and that we need to explain standard deviation. margin of error, correlation coefficient .

Standard deviation

In statistics, the standard deviation may be a measure of the number of variation or dispersion of a group of values. an occasional variance indicates that the values tend to be near the mean of the set, while a high variance indicates that the values are detached over a wider range.

Formula: $\sqrt{(x-x bar)^{2}/N }$

where x bar is mean and N is size of population.

Margin of error

The margin of error may be a statistic expressing the quantity of sampling error within the results of a survey. The larger the margin of error, the less confidence one should have that a poll result would reflect the results of a survey of the complete population.

Formula for M=z*s/ $\sqrt{n}$

here z is z value of Z score , s is variance , n is that the sample size.

Correlation coefficient

In statistics, the Pearson parametric statistic ― also called Pearson's r, the Pearson product-moment parametric statistic, the bivariate correlation, or colloquially simply because the coefficient of correlation ― could be a measure of linear correlation between two sets of information.

Formula=∑ $(x_{i} -x bar)(y_{i} -y bar)/\sqrt{}$ ∑ $(x_{i} -x bar)^{2}$ ∑ $(y_{i}-ybar) ^{2}$