The price of a washing machine was decreased by 20% to £640.
What was the price before the decrease?

The cell phone tower is 94 feet 8 inches tall, since its shadow is 100 feet and Lia's shadow is 3 feet 4 inches.

The cell phone tower must be taller than Lia, since it casts a much longer shadow. We can use the ratio of the shadow lengths to calculate the height of the tower. If Lia's shadow is 3 feet 4 inches, and the tower's shadow is 100 feet, then the ratio of the shadow lengths is 100:3.4. We can use this ratio to calculate the height of the tower. Lia is 4 feet 6 inches tall, which is 54 inches. If the ratio of the shadow lengths is 100:3.4, then the tower must be 100/3.4 times taller than Lia, which is 94 feet 8 inches. Therefore, the cell phone tower is 94 feet 8 inches tall.

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Step-by-step explanation:

D.

subtracting the smallest value of the lower half of the data set from the biggest value of the lowest half of the data set

The lower quartile of a set of data is calculated by subtracting the smallest value of the lower half of the data set from the biggest value of the lowest half of the data set.

"A quartile is a statistical term that describes a division of observations into four defined intervals based on the values of the data and how they compare to the entire set of observations.

Just like the median divides the data into half so that 50% of the measurement lies below the median and 50% lies above it, the quartile breaks down the data into quarters so that 25% of the measurements are less than the lower quartile, 50% are less than the median, and 75% are less than the upper quartile."

From the definition it is clear that,

lower quartile of a set of data is calculated by :

subtracting the smallest value of the lower half of the data set from the biggest value of the lowest half of the data set.

Hence, D is the correct option.

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In order to calculate how many words can you type in 1 minute we you use the rule of 3 to calculate the amount of words as follows:

you can type 600 words in 12 minutes therefore;

if 600 words____________________12 minutes

x_____________________1 minute

Therefore, the calculation would be:

x=words you can type in 1 minute

x=(600 words*1 minute)/12 minutes

x=50

Therefore, you can type a number of 50 words in 1 minute

Answer: 50 words

Step-by-step explanation: 600 divided by 12=50. 50x12=600

When the area corresponding to the critical value is in the lower tail of the sampling distribution, the p-value is the area under the curve less than or equal to the critical value. Therefore, the correct answer is a. less than or equal to the critical value.

The critical value is the point on the sampling distribution that separates the rejection region from the non-rejection region. If the test statistic falls in the rejection region, we reject the null hypothesis. The p-value is the probability of obtaining a test statistic as extreme or more extreme than the one observed, given that the null hypothesis is true. If the p-value is less than or equal to the critical value, we reject the null hypothesis.

In the case of a lower-tailed test, the critical value is in the lower tail of the sampling distribution, and the p-value is the area under the curve to the left of the test statistic. If the p-value is less than or equal to the critical value, it means that the test statistic falls in the rejection region and we reject the null hypothesis.

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Answer:Y=9

Step-by-step explanation:

If y=x+5 and x=4 then it would be y=4+5

Answer:

OB. (3, 1)

Step-by-step explanation:

The rule for translating 1 unit left and 3 units up is (x-1, y+3)

So we just apply that to B

B(4, -2)

B'(4-1,-2+3) or B'(3,1)

Answer:

there are 45.3592 kilograms in 100 pounds

Step-by-step explanation:

for approximate result divide the mass value by 2.205

45.3592  is 100 pounds in kg  by unit conversion.

What is  unit conversion ?

The same feature is expressed in a different unit of measurement through a unit conversion. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles. The units of a measured quantity can be changed without changing the value using a conversion factor, which is an expression representing the connection between units.

                              The numerator and denominator of a conversion ratio (also known as a unit factor) have the same value whether represented in various units, and the ratio itself always equals one (1).

1 pounds  =  0.453592 kg

100 pounds  = 45.3592 kg

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Answer:

y=-3

Step-by-step explanation:

-8y=24

y= 24/-8

y=-3

Hope this helps! :)

pls mark brainliest

y = - 3

- 8y = 24 | (-)

8y = - 24

y = - 24 : 8

y = - 3

Answer:

first one is rough endoplasmic reticulum and the second is cell membrane

Answer:

bhe ganyan din

akin

Step-by-step explanation:

please help us

Answer:

Step-by-step explanation:

We can start by simplifying the expression using the laws of exponents:

343^(2x) * 49^(-x/2) = 49^(x/2)

We can then simplify further by expressing everything in terms of 7 (since 7 is the common factor of both 343 and 49):

(7^3)^(2x) * (7^2)^(-x/2) = (7^2)^(x/2)

Applying the laws of exponents again, we get:

7^(6x) * 7^(-x) = 7^x

7^(6x - x) = 7^x

7^(5x) = 7^x

Now we can solve for x by equating the exponents on both sides:

5x = x

4x = 0

x = 0

Therefore, the solution to the equation is x = 0.

Answer:

x = 0

Step-by-step explanation:

343^(2x) * 49^(-x/2) = 49^(x/2)

(7^3)^(2x) * (7^2)^(-x/2) = (7^2)^(x/2)

7^(6x) * 7^(-x) = 7^(x)

Now, we can simplify the equation further by combining the like terms on both sides:

7^(6x - x) = 7^(x)

7^(5x) = 7^(x)

We can solve for x by equating the exponents on both sides of the equation:

5x = x

4x = 0

x = 0

Therefore, the solution to the equation is x = 0.

Answer:

0.7

Step-by-step explanation:

3.5 × 0.2 = 0.7

It is is hard to show work for this through text

Answer:

.7

Step-by-step explanation:

1' 3.5

* .2

_____

. 7 0

Hope this helped :P

Answer:

2 and X=2

Step-by-step explanation:

X-8=-6

Add 8 to both sides

X=-6+8

8-6=2

So X=2

Since X=2 the value of X is 2

Answer:

x=3 because if 8-6 is 2 then 2-8 is -6 and the equation would turn into 2-8

The probability distributions whose graphs can be approximated by bell-shaped curves are commonly known as normal distributions or Gaussian distributions.

These distributions are characterized by their symmetrical shape and the majority of their data falling within a certain range around the mean. The normal distribution is widely used in statistics and is a fundamental concept in many fields of study, including psychology, economics, and engineering. The normal distribution is also known for its many practical applications, such as predicting test scores, stock prices, and medical diagnoses. In summary, the bell-shaped curve is a useful tool in probability theory that can help us understand and make predictions about a wide range of phenomena. The probability distributions whose graphs can be approximated by bell-shaped curves are called Normal Distributions or Gaussian Distributions. They have a symmetrical shape and are characterized by their mean (µ) and standard deviation (σ), which determine the central location and the spread of the distribution, respectively.

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Homoscedasticity refers to the pattern of covariation that is constant around the regression line, whether the values are small, medium, or large.

Regression line is defined as the line which is used to estimate the unknown relationship between two variables and the relationship is linear.

The equation of this line is used to find or predict the value of one of the variable from the other.

Homoscedasticity is something which assumes that the variances are equal for different groups.

So, this refers to the pattern of covariation that is constant around the regression line, whether the values are small, medium, or large.

Hence the correct term is Homoscedasticity.

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Answer:

0.3(14-1)+0.35 = 4.25

Step-by-step explanation:

Answer: 4.25 is the answer

Step-by-step explanation:  

0.3(14−1)+0.35

=(0.3)(13)+0.35

=3.9+0.35

=4.25

BRANILIIST PLS

Answer:

D

Step-by-step explanation:

i already did it its d

The statement is true. In the linear probability regression model, the response variable y is a binary variable that takes on the values 1 or 0 to represent the probability of success.

The linear probability regression model is a statistical technique used to model the relationship between a binary response variable and one or more predictor variables. The binary response variable is typically coded as 1 if the event of interest occurs (i.e., success) and 0 if it does not occur (i.e., failure).

The linear probability model assumes a linear relationship between the predictor variables and the probability of success. It estimates the probability of success using a linear regression equation, where the coefficients represent the change in probability associated with a one-unit change in the predictor variable, all other variables being held constant. However, the linear probability model suffers from several limitations, such as the predicted probabilities can be greater than 1 or less than 0, and the assumption of constant variance of errors is often violated. Therefore, alternative models such as logistic regression are often used to model binary response variables.

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The flour-to-water ratio in Jada's paste recipe is 4:1. (or 4 parts flour to 1 ratio part water). This means that 1 pint (or 2 cups) of water was added for every 4 cups of flour used to form the paste.

In mathematics, ratios demonstrate how frequently one number is contained in another. For example, if there are 8 oranges and 6 lemons in a fruit dish, the ratio of oranges to lemons is 8 to 6. In a similar vein, the orange-to-whole-fruit ratio is 8, whereas the lemon-to-orange ratio is 6:8. A ratio is an ordered pair of numbers a and b represented as a / b, where b is not zero. A ratio is an equation that equates two ratios. For example, if there is one male and three girls (for every boy she has three daughters), 3/4 are girls and 1/4 are boys.

The flour-to-water ratio in Jada's paste recipe is 4:1. (or 4 parts flour to 1 part water). This means that 1 pint (or 2 cups) of water was added for every 4 cups of flour used to form the paste.

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The most common error when entering a formula is to reference the wrong cell in the formula.

This error occurs when the cell references within a formula do not match the intended cells. It can lead to incorrect calculations and produce unexpected results. For example, if a formula is supposed to use data from cell A1 but mistakenly refers to cell B1, the calculation will be based on the wrong data. It is important to double-check and ensure that the cell references in a formula accurately reflect the intended data sources to avoid this common mistake.

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Answer:

8. x=-5 9. x=10 10. x=14

Step-by-step explanation:

x+9=4

x=-5

-90=-100+x

x=10

x/2=7

x=14

Answer:

Step-by-step explanation:

X+9=4

To find X move 9 over to the Right hand side of the equation

Then it becomes X=4-9.

X=-5(A)

-90= -100+x

Move -100 to the other side of the equation, It becomes

-90+100=x

x=10

x/2=7

Cross Multiply

x=2*7

x=14.

Answer:

48cm

Step-by-step explanation:

The perimeter of first shape is 36cm. There are 3 semi circle (curves).

Therefore,

3 curves of semicircle (arc length) = 36

1 curve of semicircle (arc length) = 36/3

= 12cm

In picture 2,

4 semicircles (They've mentioned that they used the same semicircle for the 2nd shape also)

So,

4×12 = 48cm

The value of x and y are -5 and 4 using any of the methods as given below.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 9 is an equation.

We have,

y = 4x + 24  ______(1)

y = x + 9 _______(2)

We can use the substitution method or elimination method.

Substitution method:

4x + 24 = x + 9

4x - x = 9 - 24

3x = -15

x = -5

And,

y = x + 9

y = -5 + 9

y = 4

Elimination method.

y = 4x + 24

y - 4x = 24 _____(A)

y = x + 9

y - x = 9 _____(B)

From (A) and (B)

  y - 4x = 24

  y - x = 9

(-)   (+)    (-)

      -3x = 15

          x = -5

And,

y - x = 9

y - (-5) = 9

y = 9 - 5

y = 4

Thus,

x is -5 and y is 4

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To find the total monthly mortgage payment, we need to calculate the monthly payments for both the first (80%) and second (20%) mortgages and then add them together.

First, we'll find the monthly payment for the first mortgage:

Loan amount: $140,000 x 80% = $112,000

Interest rate: 4.75% / 12 months = 0.0395%

Loan term: 30 years x 12 months/year = 360 months

Monthly payment: $112,000 * (0.0395% / (1 - (1 + 0.0395%)^-360)) = $527.64

Next, we'll find the monthly payment for the second mortgage:

Loan amount: $140,000 x 20% = $28,000

Interest rate: 7.525% / 12 months = 0.0627%

Loan term: 30 years x 12 months/year = 360 months

Monthly payment: $28,000 * (0.0627% / (1 - (1 + 0.0627%)^-360)) = $184.07

Finally, we'll add the monthly payments for both mortgages to get the total monthly payment:

Total monthly payment: $527.64 + $184.07 = $711.71

So, the total monthly mortgage payment for Pablo's house is $711.71.

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The average temperature last Sunday is 1.08T or (1 + 8/100)T.

Temperature simply means the hotness and coldness of a body.

In this case, last Sunday, the average temperature was 8 percent higher than the average temperature two Sundays ago.

This will be expressed as:

= T + (8% × T)

= T + (0.08 × T)

= T + 0.08T

= 1.08T

The temperature is 1.08T.

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Answer:

Step-by-step explanation:

Power = Force × Velocity.

15*120=1800

To solve the problem we must know about resistance and power.

Resistance is defined as the measurement that provides opposition to the current that travels through it.

It is given by the formula,

\(\rm Resistance = \dfrac{Voltage}{Current}\)

The power of the washer is 1,800 watts.

Given to us

Current, I = 15 A

Voltage, V = 120V

Using the formula of resistance to find the resistance,

\(\rm Resistance = \dfrac{Voltage}{Current}\)

\(\rm Resistance = \dfrac{120\ V}{15\ A} = 8\ \Omega\)

Thus, the resistance for the circuit will be 8 ohms.

\(\rm Power = (Current)^2 \times Resistance\)

\(P = I^2 R\\\\P = (15)^2\times 8\\\\P = 1,800\ \rm watt\)

Hence, the power of the washer is 1,800 watts.

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The area of triangle EFG, to the nearest square inch, is approximately 1061 square inches.

To find the area of triangle EFG, we can use the formula:

\(Area = (1/2) \times base \times height\)

In this case, the base of the triangle is FG, and the height is the perpendicular distance from vertex E to side FG.

First, let's find the length of FG. We can use the law of cosines:

FG² = EF² + EG² - 2 * EF * EG * cos(∠F)

EF = 72 inches

EG = 34 inches

∠F = 21°

Plugging these values into the equation:

FG² = 72² + 34² - 2 * 72 * 34 * cos(21°)

Solving for FG, we get:

FG ≈ 83.02 inches

Next, we need to find the height. We can use the formula:

height = \(EF \times sin( \angle F)\)

Plugging in the values:

height = 72 * sin(21°)

height ≈ 25.52 inches

Now we can calculate the area:

\(Area = (1/2) \times FG \times height\\Area = (1/2)\times 83.02 \times 25.52\)

Area ≈ 1060.78 square inches

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The area of the figure is 13 cm².

We have,

From the figure,

We can make two rectangles.

Now,

Length = 5 cm

Width =  1 cm

Area of one rectangle.

= 5 x 1

= 5 cm²

Length = 4 cm

Width = 2 cm

Area of another rectangle.

= 4 x 2

= 8 cm²

Now,

Area of the figure,

= 5 + 8

=  13 cm²

Thus,

The area of the figure is 13 cm².

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ANSWER

EXPLANATION

We want to find the value of the expression:

for:

To do this, substitute the values of x and y into the expression.

That is:

The answer is option b.

Answer:

q = 55

Step-by-step explanation:

      \(p\ \alpha\ \frac{1}q} \\\\p = k \times \frac{1}{q}\\\\22 = k \times \frac{1}{5}\\\\22 \times 5 = k\\\\k = 110\\\\\)

Find q when p = 2

   \(p = k \times \frac{1}{q}\\\\2 = 110 \times \frac{1}{q}\\\\2 \times q = 110\\\\q = \frac{110}{2}\\\\q = 55\)