Solve: -0.003k -0.03k - 0.3k - 666 = 0

Answer:

500-410=

= 90

Step-by-step explanation:

your answer is c 90 miles per hour

Answer:

1. -1/3

2. (11,13) and (8,18)

3. -2

4. undefined

5. 60 miles per hour

Answer:

15

Step-by-step explanation:

To find the common denominators for 2/3 and 1/5, just look at the denominators for both of the fractions, 3 and 5

Multiply 3 and 5, which is 15. 15 is the common denominator.

Answer:

It's C.

Explanation:

I took a test on this

Answer:

4 and -2

Step-by-step explanation:

4 + -2 = 2

4 x -2 = -8

Answer:

17/20 , 11/15 , 7/10 , 3/5

The yearly deposit needed to achieve the retirement goal is approximately $17,650.23. None of the given options match this amount, so the correct answer is not provided in the given options.

To calculate the yearly deposits needed, we can use the concept of future value of an annuity. The future value formula for an annuity is given by:

FV = P * [(1 + r)^n - 1] / r

Where:

FV = Future value of the annuity

P = Yearly deposit amount

r = Interest rate per period

n = Number of periods

In this case, the future value needed is $2 million, the interest rate is 8% (0.08), and the number of periods is 30 years. We need to solve for the yearly deposit amount (P).

Using the given formula:

2,000,000 = P * [(1 + 0.08)^30 - 1] / 0.08

Simplifying the equation:

2,000,000 = P * [1\(.08^3^0 -\) 1] / 0.08

2,000,000 = P * [10.063899 - 1] / 0.08

2,000,000 = P * 9.063899 / 0.08

Dividing both sides by 9.063899 / 0.08:

P = 2,000,000 / (9.063899 / 0.08)

P ≈ 2,000,000 / 113.298737

P ≈ 17,650.23

Therefore, the yearly deposit needed to achieve the retirement goal is approximately $17,650.23. None of the given options match this amount, so the correct answer is not provided in the given options.

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\(3^5 \cdot 2^{-6}=\dfrac{3^5}{2^6}=\dfrac{243}{64}\)

Answer:

a) p = 28/100    p  =  0,28      or     p  =  28%

b) SE = 0,0448

c) CI 95 %  =  ( 0.1921 ; 0.368 )

We can support with 95 % of confidence that the proportion of people with a College degree would be found within these limits

Step-by-step explanation:

a) Sample proportion:  Is the number of positive success divide by sample size

That is from 100 ( individuals) ( sample size ) it was found that 28 had College degree  ( positive success)

Then p = 28/100    p  =  0,28      or     p  =  28%

b) The standard error is

SE =  (√p*q)/n

p = 0,28   then  q =  1  -  0,28     q  =  0,72

SE =   √ (0.28)*(0.72)/100

SE =  √0.002016

SE = 0,0448

c) CI =  95 %     then  significance level is  α =  5 %    α = 0.05  

α/2 =  0.025

From z- table we find z(c)  = 1.96

Then  CI 95 %  =  p₀  ±  z(c) * SE

CI 95 %  =  0.28  ±  1.96*0.0448

CI 95 %  =  ( 0.28 ±  0.088 )

CI 95 %  =  ( 0.1921 ; 0.368 )

d) We can support with 95 % of confidence that the proportion of people with college degree would be found within these limits

Answer:

the answer is 24 i just did this test

Step-by-step explanation:

Answer:

x = 21

Step-by-step explanation:

9/3 = 3

7 x 3 = 21

Answer:

x = 21

9/3 = 3

(3)(7) = 21

And I got the answer from my brain

Step-by-step explanation:

The equation of the tangent to the curve y = (2x - 3)^3 at the point (1, -1) is y = 18x - 19.

To find the equation of the tangent, we need to determine the slope of the tangent line at the given point and then use point-slope form to derive the equation.

Differentiate the given curve with respect to x to find the derivative:

dy/dx = 3(2x - 3)^2 * 2 = 6(2x - 3)^2

Evaluate the derivative at x = 1 to find the slope of the tangent at the point (1, -1):

m = dy/dx (at x = 1) = 6(2(1) - 3)^2 = 6(-1)^2 = 6

Now we have the slope (m = 6) and the point (1, -1). Use the point-slope form of the equation:

y - y₁ = m(x - x₁), where (x₁, y₁) is the given point.

y - (-1) = 6(x - 1)

y + 1 = 6x - 6

y = 6x - 7

Therefore, the equation of the tangent to the curve y = (2x - 3)^3 at the point (1, -1) is y = 18x - 19.

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6x+2y=-10

move 6x to the other side

2y=-10-6x

divide 2 on both sides

y = -3x - 5

Answer: 35 notebooks

Step-by-step explanation:

Edward started his hike at an elevation of 115 feet below sea level. Throughout the hike he ascended 3,200 feet and then descended 676 feet. How much did his elevation change?

115+676=791

3200-791= 2409

his elevation changed by 2409 ft

brainliest pls

The value of x is 51. Vertical angles are the pair of non-adjacent angles formed by two intersecting lines. These angles are congruent, i.e., they have equal measures.

Given that ∠A and ∠B are vertical angles. Therefore, we have:

m∠A = m∠B

We are also given that:

m∠� = (2x − 26)°

m∠� = (x + 25)°

Equating both expressions for m∠�, we get:

(2x − 26)° = (x + 25)°

Simplifying and solving for x, we get:

2x − 26 = x + 25

x = 51

Therefore, the value of x is 51.

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If Johny receives £x, then Sara will receive £4x (Given ratio is 1:4).

In mathematics, a ratio shows how many times one number is contained in another.

For instance, if there are eight oranges and six lemons in a fruit plate, the orange to lemon ratio is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).

Similarly, the ratio of oranges to total fruit is 8:14, while the ratio of lemons to oranges is 6:8 (or 3:4). (or 4:7). Numbers in a ratio can represent any quantity, including counts of people or objects, weights, lengths, times, and so on. Most of the time, both numbers have to be positive.

If Johny receives £x, then Sara will receive £4x (Given ratio is 1:4).

assumable, 4x - x = £69

or, 3x = 69

or, x = 69/3 = £21

Then Johny receives £21 and Sara receives £84 (4x£21).

Becky receives £(138-(21+84)) = £33 as well.

Her proportion in the ratio is equal to (33/138) x 100% (23.91%).

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Answer:

$20.00

Step-by-step explanation:

use the percent off calculator on freeonlinecalculatoruse.com

hope this helps :)

Answer:

someone please help me77 ok

the equation for a curve whose slope at any point (x,y) is 2 is y = 2x + C. The constant C determines the position of the curve in the y-axis.

The general form of a differential equation with a slope of 2 at any point (x,y) is:

dy/dx = 2

Using separation of variables, we can write:

dy = 2 dxdxcancan

Integrating both sides gives:

y = 2x + C

where C is an arbitrary constant of integration.

Therefore, the equation for a curve whose slope at any point (x,y) is 2 is y = 2x + C. The constant C determines the position of the curve in the y-axis.
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Answer:

39/98=90 so its 90

Step-by-step explanation:

you have to add the angles and to make sure to look at each corners  of the angles for the answer

The product of the terms   \((d - 9)\)  and  \((2d^{2} + 11d -4)\)  will be \((2d^{3} - 7d^{2} - 103d + 36)\).

We have to find the product of two terms.

First term = (d - 9)

Second term = \((2d^{2} + 11d -4)\)

To find the product of these two terms, we will be using the distributive property. According to the distributive property, when we multiply the sum of two or more addends by a number, it will give the same result as when we multiply each addend individually by the number and then add the products together.

We have to find :  \((d - 9) (2d^2 + 11d -4)\)

Using the distributive property,

\(d * 2d^{2} + d * 11 + d * (-4) - 9 * 2d^2 - 9 * 11d - 9 * (-4)\)

After further multiplication, we get

\(2d^{3} + 11d^2 - 4d - 18d^{2} - 99d + 36\)

Now, combine all the like terms.

\(2d^{3} + 11d^{2} - 18d^{2} - 4d - 99d + 36\)

\(2d^{3} - 7d^{2} - 103d + 36\)

Therefore, the product of d-9 and 2d^2 + 11d -4 is \(2d^{3} - 7d^{2} - 103d + 36\)

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Observations are the collection of measurements made for a specific element. Observations are typically collected from a sample of data, which are then used to measure particular variables. This information is then used to make inferences about a larger population, often referred to as a census.

A set of measurements collected for a particular element is called observations. Observations are typically generated from a sample of data which is then used to measure particular variables. Variables are measurable characteristics which can be observed and measured. For example, a variable can be a person’s age, height, or gender. The data collected from these variables are then used to make inferences about a larger population, such as a census. A census is a complete count of a population, which may be used to measure the characteristics of a population or to make estimates about a population. Observation data is used to make inferences about a larger population and is used to make decisions or draw conclusions about a particular element. This data is often used in research, policy making, and decision-making.

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A dependent means t-test determines if the differences between scores on the pretest and post-test measures differ significantly from Zero(0).

Benefits of pre-test measurements

This design is superior to the post-test-only control design because it adds pre-tests. Addition of pre-test: Improve your design ability to detect effects. You can investigate the impact of interventions on various sublevels of pretesting.

The design of the pre-test and post-test is similar to the in-subject experiment. In this experiment, each participant is first tested in control conditions and then in therapeutic conditions.

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Answer:

Yes

Step-by-step explanation:

They are just in the opposite side

The appropriate statistical tool for predicting the value of a random variable based on the values of other random variables is regression.

A statistical measure that identifies the link or co-relationship between two variables. explains the relationship between an independent variable and a dependent variable. The two methods most frequently employed for examining the relationship between quantitative variables are correlation and regression. Regression is used here to allude to linear regression. While linear regression employs an equation to represent this relationship, correlation is employed to show the link between the variables. When two quantitative variables are supposed to have a linear relationship, correlation and regression are employed to identify some kind of association.

Given

The appropriate statistical tool for predicting the value of a random variable based on the values of other random variables is

a) Regression

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Answer:

Step-by-step explanation:

By determining the value of y when x=1, we'll find the constant of proportionality.

\(\sf y=0.5\)

when, x = 1

The constant of proportionality:-

\(\sf \cfrac{y}{x},\:is\:\cfrac{0.5}{1}\: or \: 0.5\)

Therefore, your answer is 0.5 .

________________________

Hope this helps!

Have a great day!

Answer:

D

Step-by-step explanation:

The GRE score at the upper quartile is approximately A) 613.

To find the GRE score at the upper quartile Q3, we need to first find the z-score of Q3 and then convert it back into the original units using the formula:

z = (x - μ) / ơ

where z is the standard score, x is the GRE score, μ is the mean, and ơ is the standard deviation.

The upper quartile Q3 is the 75th percentile of the distribution, which means that 75% of the scores in the distribution fall below Q3 and 25% of the scores fall above it. Using a standard normal table or a calculator, we can find the z-score corresponding to the 75th percentile, which is approximately 0.67.

Plugging in the values of μ, ơ, and the z-score into the formula for z, we get:

0.67 = (x - 544) / 103

Solving for x, we get:

x = 103(0.67) + 544

x = 613.01

Rounding this to the nearest whole number, we get:

Q3 ≈ 613

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Answer:

1) x = 14.25     2) 9

Step-by-step explanation:

1) 1 Package = 4 boxes

1 Box = 7 pounds of beans

Your equation should be 4x + 7 = 64...

because 64 is the total pounds that each package weigh!  4 becomes a a variable; 4x because it has the word "each" in it. Mostly likely, when you see "each" that number becomes a variable. 7 is a just an number you have to add to the equation.

Solve!

    4x + 7 = 64

          - 7    - 7          Subtract 7 from both sides

     4x = 57

     4x / 4 = 57 / 4     Divide 4 from both sides

x = 14.25

2)  9

Variability between groups is due to the grouping factor.

The F ratio is a measure of the variability between groups relative to the variability within groups, but it is not the cause of the variability between groups.

In an experimental design, researchers often manipulate an independent variable to observe its effects on a dependent variable.

The independent variable is often a grouping factor, which means that participants are assigned to different groups based on some characteristic or condition.

Participants may be assigned to a treatment group or a control group, or they may be grouped based on age, gender, or some other factor.

The experiment is conducted, the dependent variable is measured in each group, and the researcher is interested in whether there are significant differences between the groups.

Variability between groups refers to the differences in the mean scores of the dependent variable between the different groups.

The grouping factor is the reason for the variability between groups.

This is because the different groups are defined by the levels of the grouping factor, and the participants within each group are assumed to be similar with respect to the dependent variable.

Any differences between the groups must be due to the effect of the grouping factor.

The F ratio, which is calculated by dividing the variability between groups by the variability within groups, is used to test whether the differences between the groups are statistically significant.

The F ratio is a measure of the extent to which the grouping factor explains the variability in the dependent variable, and a significant F ratio indicates that there are significant differences between the groups.

Variability between groups is due to the grouping factor, and the F ratio is used to test whether the differences between the groups are statistically significant.

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