Lucy bought 512 of a pound of candy. Greta bought 312 of a pound of candy. Which equation correctly represents the total weight of candy that Lucy and Greta bought?

Answer:

a = 3b + 13

Step-by-step explanation:

First, we have to move all terms not involving A to the right of the equal sign
a = 7 + 3(b+2)
Now, we have to distribute.  
a = 7 + 3b + 6
Finally, combine like terms.
a = 3b + 13

The critical value for a left-tailed test of a population standard deviation for a sample of size n=15 is 6.571, 23.685. Therefore, the correct answer is option B.

Critical value is an essential cut-off value that defines the region where the test statistic is unlikely to lie.

Given,

Sample size = n = 15

Level of significance = α=0.05

Here we use Chi-square test. Because the sample size is given for population standard deviation,

For the chi-square test the degrees of freedom = n-1= 15-1=14

The critical values are (6.571, 23.685)...... From the chi-square critical table.

Therefore, the correct answer is option B.

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"Your question is incomplete, probably the complete question/missing part is:"

Determine the critical value for a left-tailed test of a population standard deviation for a sample of size n=15 at the α=0.05 level of significance. Round to three decimal places.

a) 5.629, 26.119

b) 6.571, 23.685

c) 7.261, 24.996

d) 6.262, 27.488

LSD training is  type of interval training consists of overhead squats, front squats, and romanian deadlifts

Whats the definition for intervals?

in·​ter·​val ˈin-tər-vəl. plural intervals. : a space of time between events or states. a two-month interval between medical treatments. There were long intervals during the game in which nothing exciting happened

The area of focus of the Single Leg Romanian Deadlift is the back of the individuals legs and hips. By engaging in this activity, a person is getting a great workout for his or her glutes, hamstrings, lats. It requires the person to lift one leg directly beside the balance leg and then bend from waist to slowly reach hand toward the toes of the balance leg.

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Answer:

Here are the answers:

Step-by-step explanation:

1. t=1

2.m=2

3.n=2

4.a=2

5.x=1/3 or 0.3

6.x=15

7.s=4

8.t=2

9.s=1

10.s=3/28, or 0.10714285

11.x=1/3, or 0.3

12.r=2

13.c=-1

14. \(m= \frac{2}{n} \), n ≠ 0

n=\(\frac{2}{m} \), m ≠ 0

15. j= -2

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

Answer:

here is some

Step-by-step explanation:

1. t=1

2.m=2

3.n=2

4.a=2

Answer:

Step-by-step explanation:

5+2+7=14

28/14=2

2*5=10

2*2=4

2*7=14

10:4:14

2500 - 2000y  is  value with every passing year. is an expression for the cost (C) of the car after y years of use.

What does "cost simple" mean?

The amount of money that a business had to spend on the production of its goods or services is known as the cost. It is calculated as the sum that the business spends to create a specific number of a product.

                                    In plain English, it is the cash a business spends on things like labor, services, raw materials, and more.

The cost of the car is  $25,000

and it loses its original value by  8%

.

Hence the cost of the car after y years = $(2500 - 2500 * 0.08 * y)

                                                    = $(2500 - 2000 * y

                                                = 2500 - 2000y

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Answer:

Please type or attach a question to be answered. Currently, all you have is as a question is the statement "Breyelle is planning on purchasing a new sports utility vehicle."

The geometric average of the five returns is 20.14.%

Geometric average or geometric mean is the average of a set of values calculated using the products of the terms or values.

The geometric average of a data set containing n observations is the nth root of the product of the values.

Calculating the geometric average of the following five returns: -36.81%, 19.14%, 23.77%, -6.34%, 31.17%:

n = 5

Geometric average = \(\sqrt[5]{(-36.81) \times (19.14) \times (23.77) \times (-6.34) \times (31.17)}\)

Geometric average = 20.14%

In conclusion, the geometric average  mean is obtained as the  nth root of the product of the values.

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STEP1: Equation at the end of step 1

(2x • (5x - 2)) + (2x + 1) • (8 - 5x)

STEP2: Equation at the end of step 2

2x • (5x - 2) + (2x + 1) • (8 - 5x)

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

Final result :

7x + 8

The 98% confidence interval for the population mean (μ) is approximately (2.711, 3.009).

1: Identify the given data

Sample size (n) = 150 students

Sample mean (x) = 2.86

Population standard deviation (σ) = 0.78

Confidence level = 98%

2: Find the critical z-value (z*) for a 98% confidence level

Using a z-table or calculator, you'll find that the critical z-value for a 98% confidence level is 2.33 (approximately).

3: Calculate the standard error (SE)

SE = σ / √n

SE = 0.78 / √150 ≈ 0.064

4: Calculate the margin of error (ME)

ME = z* × SE

ME = 2.33 × 0.064 ≈ 0.149

5: Construct the confidence interval

Lower limit = x - ME = 2.86 - 0.149 ≈ 2.711

Upper limit = x + ME = 2.86 + 0.149 ≈ 3.009

The 98% confidence interval is approximately (2.711, 3.009).

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Answer:

what are the following expressions

Step-by-step explanation:

Answer:

x=\(-\frac{9}{19}\)

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

because it is asking what minus 9 is equal to -4

Answer:

5

Step-by-step explanation:

5 - 9= - 4

I don't know if this is confusing but you could also just subtract 5 from 9 (9-5) which is 4 and then put a - in front of it

Answer:

flooring crew > plumbers > paint crew > electricians

Step-by-step explanation:

when you turn all of the numbers into percentages, you get:

paint crew: 1/7 = 14%

plumbers: 0.15 = 15%

flooring crew: 1/6 = 16%

electricians = 12% (given)

Answer:
45.2x0.784

Step-by-step explanation:

This problem equals 35.4368, which has four decimal points

Answer:

call center A and B offer equal wages

Step-by-step explanation:

15/60 min 0.25/60 s

15/60 = 0.25

Answer:

Step-by-step explanation:

Answer:

3 gallons

Step-by-step explanation:

Each wall 12 x 20 = 240 feet squared

4 walls =  4 x 240 = 960 squared feet

960 divided into 320 = 3

1 gallon --------320

1 gallon------------320

1 gallon-----------320

                    3 gallons----------960

The product of seven tenths and seventy-four hundredths, as a decimal, is 0.518.To find out the product of seven tenths and seventy-four hundredths as a decimal, we multiply the two values.

We have:To find the product of seven tenths and seventy-four hundredths, we multiply the two numbers together.

Seven tenths can be represented as 0.7 (since 7 divided by 10 equals 0.7).

Seventy-four hundredths can be represented as 0.74 (since 74 divided by 100 equals 0.74).

To find the product, we multiply 0.7 by 0.74:

0.7 * 0.74 = 0.518

Convert the fractions to decimals:

Seven tenths is equivalent to 0.7 because dividing 7 by 10 gives us 0.7.

Seventy-four hundredths is equivalent to 0.74 because dividing 74 by 100 gives us 0.74.

Multiply the decimal values:

Multiply 0.7 by 0.74:

0.7 * 0.74 = 0.518.

Simplify the result:

The product of 0.7 and 0.74 is 0.518.

Therefore, the product of seven tenths and seventy-four hundredths, as a decimal, is 0.518.

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Answer: c is the right answer

Step-by-step explanation: i just did it and i got it right.

Answer:

she will need to work for 55 hours to buy the phone

Step-by-step explanation:

680 - 240 = 440

that's how much more she needs

449 ÷ 8 = 55

and that's the answer

55

hope that helped

Answer:

55 hours

Step-by-step explanation:

Well first we need to set up the equation

We know she needs 680$ to buy the phone so the equation must be equal to 240

She has 240 and earns 8 dollars per hr so were finding out how many hours of work is needed to be able to buy the phone

Represent the number of hours worked by "x"

Set the equation up as

240 + 8x = 680

Add -240 to both sides of the equation to make 240 be 0 and 680 be 440

8x = 440

divide both sides of equation by 8 to get what x equals

x=55

She needs to work 55 hours

Answer:

4:7

Step-by-step explanation:

The consonants are 7, while the vowels are 4

So, the ratio of vowels to consonant should be

4:7

97 decibel sound is 2.5 times more intense than a 93 decibel sound

Correct option is C.

Sound intensity also known as acoustic intensity, is defined as the power transmitted by a sound wave per unit area in a direction perpendicular to that area. Sound intensity is the sound power in watts divided by the area (in square meters) covered by the sound. Sound loudness relates the intensity of a particular sound to its strength at the threshold of hearing, measured in decibels (dB).

Given expression for loudness

L = 10 log(I/I₀)

Loudness of two different sounds are

L₁ = 97 decibel and L₂ = 93 decibel.

Let the intensity for the loudness L₁ and L₂ are I₁ and I₂

Then,

L₁ = 10log(I₁/I₀) = 97

⇒ log(I₁/I₀) = 9.7

taking antilog

I₁/I₀ = antilog (9.7)

I₁/I₀ = 5011872336.27271

L₂ = 10log(I₂/I₀) = 93

⇒ log(I₂/I₀) = 9.3

taking antilog

I₂/I₀ = antilog (9.3)

I₂/I₀ = 1995262314.96888

Then,

(I₁/I₀)/(I₂/I₀) = 5011872336.27271/1995262314.96888

I₁/I₂ = 2.51188643 ≈ 2.5

Hence, 2.5 times more intense is 97 decibel sound than 93 decibel sound.

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Answer:

330yd^3

Step-by-step explanation:

multiply all of them

Answer:

330 yd^3

Step-by-step explanation:

V=w*h*l

V=5*6*11

V=330 yd^3

Answer:

Step-by-step explanation:

Given the algebraic equation of a line, we are able to graph it in a number of ways. In this section, we will be given a geometric description of a line and be asked to find the algebraic equation. Finding the equation of a line can be accomplished in a number of ways, the first of which makes use of slope-intercept form,  

y

=

m

x

+

b

. If we know the slope, m, and the y-intercept, (0, b), we can construct the equation.

Example 1: Find the equation of a line with slope  

m

=

−

5

8

and y-intercept (0, 1).

Solution: The given y-intercept implies that  

b

=

1

. Substitute the slope m and the y-value of the y-intercept b into the equation  

y

=

m

x

+

b

.

Answer:  

y

=

−

5

8

x

+

1

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length. It has four angles, with each pair of opposite angles being congruent, and its diagonals bisect each other.

To find the length of AC in parallelogram ABCD, we need to use the properties of diagonals.
Given that AE = 2x, BE = 10y, CE = x^2, and DE = 4y - 8.

Since AC is a diagonal, it intersects with diagonal BD at point E. According to the properties of parallelograms, the diagonals of a parallelogram bisect each other.
So, AE = CE and BE = DE.

From AE = CE, we have 2x = x^2.

Solving this equation, we get x^2 - 2x = 0.

Factoring out x, we have x(x - 2) = 0.
So, x = 0 or x - 2 = 0.

Since lengths cannot be zero, we have x = 2.
Now, from BE = DE, we have 10y = 4y - 8.

Solving this equation, we get 6y = 8.
Dividing both sides by 6, we have y = 8/6 = 4/3.

Now that we have the values of x and y, we can find the length of AC.
AC = AE + CE.

Substituting the values, AC = 2x + x^2.
Since x = 2, AC = 2(2) + (2)^2 = 4 + 4 = 8.

Therefore, the length of AC is 8 units.

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The property that is not true for the normal distribution among the given options is: "The mean, median, and mode are all equal."

The normal distribution is characterized by several key properties. It has a bell shape, meaning it is symmetric around its mean. The tails of the distribution asymptotically approach the horizontal axis, which means they gradually decrease in height as they extend toward positive and negative infinity. The area underneath the curve and to the right of the mean is equal to 0.5, not 1. This is because the total area under the curve represents the probability of all possible outcomes and must sum up to 1. Lastly, the mean, median, and mode of the normal distribution are all equal to each other, making them measures of central tendency that coincide.

Therefore, the property that does not hold for the normal distribution is that the area underneath the curve and to the right of the mean is 1, as it is actually 0.5.

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Answer:

A

Step-by-step explanation:

Area of a circle = \(A = \pi r^{2} \\\)

R = 1/2 diameter

R = 14 / 2 = 7

A = π(7)²

A = 153.86

Answer:

a

Step-by-step explanation: