What is the coefficient of the third term in a binomial that is raised to the sixth power?

Name two properties used to evaluate 7x1-4x1/4

Kitty [74]

7x1=7, then 4x1/4= 4x1=4 divided by 4= 1. Then subtract 7- 1= 6

5 0

3 years ago

Eliminate the parameter t. Then use the rectangular equation to sketch the plane curve represented by the given parametric equat

____ [38]

Answer:

$9x^2+4y^2=36$

Step-by-step explanation:

We are given that

$x=2cos t$

$y=3 sin t$

$0\leq t\leq 2\pi$

$cost=\frac{x}{2}$

$sint=\frac{y}{3}$

$sin^2 t+cos^2 t=(\frac{x}{2})^2+(\frac{y}{3})^2$

$1=\frac{x^2}{4}+\frac{y^2}{9}$

By using the formula

$sin^2\theta+cos^2\theta=1$

$1=\frac{9x^2+4y^2}{36}$

$9x^2+4y^2=36$

4 0

3 years ago

2. 20 DATA VALUES LISTED IN NUMERICAL ORDER. FIND<br> THE MEAN, MEDIAN, MODE, RANGE, LE UE, LQ, UQ

Andre45 [30]

Answer:

facts

Step-by-step explanation:

facts

3 0

3 years ago

An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. The particular

kolezko [41]

Answer:

42.1% of variation in the response is explained by the regression line

Step-by-step explanation:

Correlation coefficient is a measure which tells us that how strongly are two variables under study are linearly related to each other i.e correlation coefficient gives the strength of linear association between the variables.

If the magnitude of correlation coefficient is closer to 1, it indicates a strong linear relationship. If the magnitude of correlation coefficient is closer to 0, it indicates a weak linear relationship.

There is another variable known as "Coefficient of Determination", which is equal to square of Correlation Coefficient. Coefficient of Determination tells us that what percentage of variation in the response of the study can be explained by the regression line.

This means, for this question we need to calculate the Coefficient of Determination.

Correlation coefficient = r = 0.649

Coefficient of Determination = R = r² = (0.649)²= 0.421 = 42.1 %

This means that 42.1% of variation in the response is explained by the regression line.

5 0

3 years ago

Solve for the rate (as a %). Round to the nearest tenth of a percent when necessary,

Sedbober [7]

Answer:

Step-by-step explanation:

Solve for the rate (as a %). Round to the nearest tenth of a percent when necessary.

What percent of 1,600 is 2,700?

______%

Solve for the rate (as a %). Round to the nearest tenth of a percent when necessary.

$7.40 is what percent of $58.90?

______%

Solve for the base (in $). Round to hundredths when necessary.

What is the base if the portion is $4,580 and the rate is 65%?

Solve for the base. Round to hundredths when necessary.

140 is 120% of what number?

Solve the word problem for the portion, rate, or base.

A quality control process finds 46.8 defects for every 7,800 units of production. What percent of the production is defective?

______ %

3 0

3 years ago