if x and y are positive integers and if x/y=1 and (x+y)squared=z which of the following can equal z?

A.5, B.9, C.16 or D.25

Answer:

Please check the explanation.

Step-by-step explanation:

Given

We can determine the area of the rectangular field using the equation

\(A=wl\)

where

substituting  l = 240m, and  w = 200m in the formula

\(A=wl\)

A = 240 × 200

A = 48000 m²

Given that the cost of digging the field at Rs 10 per m².

Thus,

The cost of digging the field of the area 48000 m² = 10 × 48000

                                                                                     = 480000 Rs

Therefore, the total cost of digging = 480000 Rs

Step-by-step explanation:

3y +4 =5y -10

2y = 14

y = 7

DEF = (3Y+4)× 2 OR (5Y-10) ×2 OR (5Y-10+ 3Y+4)

Def= (3 ×7+4)×2

=50 degree

Answer:

y = -1/2x + 2

Step-by-step explanation:

(-2,3) and (0,2)

Slope: (2-3)/0- -2) = -1/2

Take any point to find the y-intercept.

(0,2) x=0 and Y = 2

y-intercept: y - (slope) times (x)

y-Intercept: 2 - (-1/2)*(0) = 2 - 0 = 2

Answer:

x >= 74

Step-by-step explanation:

x/10 (* 10) + 6 >= 8 (* 10)

x + 6 (- 6) >= 80 (- 6)

x >= 74

Answer:

does the dog talk spanish

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

150/2=75

Answer:

About 10.5 weeks

Step-by-step explanation:

As each day two pills need to be consumed, 14 pills need to be consumed per week. 150 divided by 14 is roughly 10.5, but slightly more. Hope it helps!

Answer:

$13.00 per person

Step-by-step explanation: you divide $26 by 2

To find the polar coordinates (r, θ) corresponding to the Cartesian coordinates (-6, 6), we can use the following formulas:

r = √(x² + y²)

θ = arctan(y / x)

(a) For the given point (-6, 6):

x = -6

y = 6

First, let's find the value of r:

r = √((-6)² + 6²) = √(36 + 36) = √72 = 6√2

Next, let's find the value of θ:

θ = arctan(6 / -6) = arctan(-1) = -π/4 (since the point lies in the third quadrant)

Therefore, the polar coordinates of the point (-6, 6) are (6√2, -π/4).

(b) For r > 0 and 0 ≤ θ < 2:

In this case, the polar coordinates will remain the same: (6√2, -π/4).

(c) For r < 0 and 0 ≤ θ < 2:

Since r cannot be negative in polar coordinates, there are no valid polar coordinates for r < 0 and 0 ≤ θ < 2.

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Answer:

12

Step-by-step explanation:

thats it okatyyyyyyy

Answer:roll agian

Step-by-step explanation:

Answer:

you should roll it again

Step-by-step explanation:

i hope this helps have a good day

\(\huge\underline\mathtt\colorbox{cyan}{ATTACHMENT}\)

Answer:

see explanation

Step-by-step explanation:

(1)

a + 3b = 5 ( subtract 3b from both sides )

a = 5 - 3b → (1)

3a + 2b = 8 → (2)

Substitute a = 5 - 3b into (2)

3(5 - 3b) + 2b = 8 ← distribute and simplify left side

15 - 9b + 2b = 8

15 - 7b = 8 ( subtract 15 from both sides )

- 7b = - 7 ( divide both sides by - 7 )

b = 1

Substitute b = 1 into (1)

a = 5 - 3(1) = 5 - 3 = 2

Then a = 2 and b = 1

(2)

3m - 4n = - 14 → (1)

2m + 2n = 14 → (2)

Multiplying (2) by 2 and adding to (1) will eliminate the n- term

4m + 4n = 28 → (3)

Add (1) and (3) term by term to eliminate n

7m + 0 = 14

7m = 14 ( divide both sides by 7 )

m = 2

Substitute m = 2 into either of the 2 equations and solve for n

Substituting into (2)

2(2) + 2n = 14

4 + 2n = 14 ( subtract 4 from both sides )

2n = 10 ( divide both sides by 2 )

n = 5

Then m = 2 and n = 5

Step-by-step explanation:

an angle that is complementary to one of the interior angles of the triangle because interior angle+exterior angle add up to 180°

A 20 year old has height below 3.7 feet and above 7.9 feet then 20 year old be considered abnormal.

The average height means that the given population determined by the interaction between the environment in which it lives and the resources it commands.

Abnormal means diffrent from what is normal or usual, in a way that worries you or that is unplesant.

We have given that average height is 5.8 feet.

And abnormal height a 20 year old must be 2.1 feet below average height or 2.1 feet above average height.

Therefore 5.8 - 2.1 = 3.7 feet

                 5.8 + 2.1 = 7.9 feet

Hence height below 3.7 feet abd above 7.9 feet is considered to be abnormal.

That means [-∞ , 3.7] and [7.9,∞] is considered to be abnormal height for 20 year old man.

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The two squares and the shaded region of square A is in the attachment.

Answer: The shaded region of A is 12.5% of the area of B.

Step-by-step explanation: Assume that the length of side of square A is a and the length of side of square B is b.

Length a is half (50%) of length b:

a = \(\frac{b}{2}\)

The shaded region is a triangle. The area of a triangle is: A = \(\frac{b.h}{2}\)

b and h are the sides of the square A, so:

\(A_{1}\) = \(\frac{\frac{b}{2}.\frac{b}{2}}{2}\)

\(A_{1} = \frac{b}{2}.\frac{b}{2}.\frac{1}{2}\)

\(A_{1} = \frac{b^{2}}{8}\)

Area of square B is:

\(A_{2}\) = b.b

\(A_{2} = b^{2}\)

Comparing areas:

\(\frac{\frac{b^{2}}{8} }{b^{2}}\) = \(\frac{b^{2}}{8}.\frac{1}{b^{2}}\) = \(\frac{1}{8}\)

As percentage:

\(\frac{1}{8}\) × 100 = 0.125 × 100 = 12.5%

Comparing the shaded region of A to square B, the area of the first is 12.5% smaller than the second.

The requried width of the pathway around the garden is 4.27 meters.

The rectangle is 4 sided geometric shape whose opposites are equal in length and all angles are about 90°.

Here,

Jamie has a garden that is 20 meters by 30 meters.
Area of the garden = 20 × 30 = 600 square meter
Let the offset in the form of width be x,

New length = 20 + 2x
New width of garden = 30 + 2x
New area =  old area + area of the offset pathway
(20 + 2x)(30 + 2x) = 600 + 500

By the simplification of the above expression, we get
x = 4.27 meter

Thus, the requried width of the pathway around the garden is 4.27 meters.

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3.6

2.1(2.1) - 0.9(0.9)

4.41 - 0.81 = 3.6

Answer:

Point E is given by \(\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )\)

Step-by-step explanation:

Let points C and D be \((x_0,y_0),\,(x_1,y_1)\) and let point E divides it in ratio \(m:n\).

Then coordinates of point E are given by \(\left ( \frac{mx_1+nx_0}{m+n},\frac{my_1+ny_0}{m+n} \right )\)

Put \(m:n=3:4\)

Point E is given by \(\left ( \frac{3mx_1+4x_0}{3+4},\frac{3y_1+4y_0}{3+4} \right )=\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )\)

Now plot point E.

For 8% p-value cutoff , Melissa should use 92% confidence interval

A confidence interval calculated for a treatment effect measure shows the range in which the true treatment effect is likely to fall.

A smaller sample size or higher variability will result in a wider confidence interval with a larger margin of error. The interval width is also influenced by the level of confidence. If you want a higher level of certainty, the interval should be wider.

The width of the confidence interval and the size of the p value are related.

The narrower the interval, the smaller the p value. The confidence interval, on the other hand, provides useful information about the likely magnitude of the effect under consideration as well as the accuracy of the estimate.

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Answer:

-7×-9

=63

Step-by-step explanation:

If u multiple - with -, I'll get + sign

Answer:

63

Step-by-step explanation:

-7*(-9)

7*9

63

Best of Luck!

The price of the sult yesterday was approximately $360. It's important to note that the 67% discount was applied to the original price, resulting in a sale price of $118.80.

To find the price of the sult yesterday, we need to determine the original price before the 67% discount was applied.

Let's assume the original price is represented by the variable 'x.'

Given that the sale price after a 67% discount is $118.80, we can set up the following equation:

Sale price = Original price - Discount

$118.80 = x - (67% of x)

To calculate 67% of x, we multiply x by 0.67:

$118.80 = x - (0.67x)

Next, we simplify the equation:

$118.80 = 0.33x

Dividing both sides of the equation by 0.33:

$118.80 / 0.33 = x

Approximately:

$360 = x

By rearranging the equation and isolating the original price, we were able to determine that the original price before the discount was approximately $360.

This calculation assumes a linear discount, meaning that the discount percentage remains the same regardless of the price. However, in real-world scenarios, discounts may vary depending on the product, time, or other factors. It's always advisable to check the specific discount terms and conditions provided by the seller for accurate pricing information.

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Answer:

33600 m²

Step-by-step explanation:

The top and bottom horizontal sides are parallel, so this is a trapezoid with bases DC and AB. The height is BC.

area of trapezoid = (a + b)h/2

where a and b are the lengths of the bases, and h is the height.

We need to find the height, BC.

Drop a perpendicular from point A to segment DC. Call the point of intersection E. E is a point on segment DC.

DE + EC = DC

EC = AB = 360 m

DC = 600 m

DE + 360 m = 600 m

DE = 240 m

Use right triangle ADE to find AE. Then BC = AE.

DE² + AE² = AD²

DE² + 240² = 250²

DE² = 62500 - 57600

DE² = 4900

DE = √4900

DE = 70

BC = 70 = h

area = (a + b)h/2

area = (600 m + 360 m)(70 m)/2

area = 33600 m²

Answer:

33,600 m^2.

Step-by-step explanation:

This is a trapezium, so

Area = (h/2)(a + b)

=  (h/2) ( 360 + 600)

= 960h / 2

= 480h,

We find the value of h using Pythagoras:

250^2 = h^2  + (600-360)^2

h^2 =  250^2 - 240^2 = 4900

h = 70.

So the Area = 70 * 480

= 33,600 m^2

Answer:

91

Step-by-step explanation:

1+2+3+4+5+6+7+8+9+10+11+12+13 = (14 * 6) + 7 = 91

T-test is commonly used to examine whether two groups are significantly different from each other or not.

A t-test is an inferential statistic used to determine if there is a significant difference between the means of two groups and how they are related. T-tests are used when the data sets follow a normal distribution and have unknown variances, like the data set recorded from flipping a coin 100 times.

It is a statistical test that is used to compare the means of two groups. It is often used in hypothesis testing to determine whether a process or treatment actually has an effect on the population of interest, or whether two groups are different from one another.

T-test is used to determine whether two groups are different or not.

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The T-test is commonly used to examine whether two groups are significantly different from each other or not.

A T-test is used to determine if two groups are different.

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Answer:

4

Step-by-step explanation:

the answer is -9/5 100%

Step-by-step explanation:

Answer:

A: 2x10^15 cubic meters

Answer:

2*10^15 cubic meters

The Wald test is a statistical test that can be used to test the significance of a group of coefficients in a multiple regression model.

The test statistic is calculated as the ratio of the estimated coefficient to its standard error. If the test statistic is significant, then the null hypothesis that the coefficient is equal to zero can be rejected.

Suppose we have a multiple regression model with three independent variables: age, gender, and education. We want to test the hypothesis that the coefficients for age and education are both equal to zero. The Wald test statistic would be calculated as follows:

Test statistic = (Estimated coefficient for age) / (Standard error of estimated coefficient for age) + (Estimated coefficient for education) / (Standard error of estimated coefficient for education)

If the test statistic is significant, then we can reject the null hypothesis that the coefficients for age and education are both equal to zero. This would mean that there is evidence that age and education are both associated with the dependent variable.

The Wald test is a powerful tool that can be used to test the significance of a group of coefficients in a multiple regression model. However, it is important to note that the test statistic is only valid if the assumptions of the multiple regression model are met. If the assumptions are not met, then the p-value of the Wald test may be inaccurate.

Here are some of the assumptions of the multiple regression model:

* The independent variables are independent of each other.

* The dependent variable is normally distributed.

* The errors are normally distributed.

* The errors have constant variance.

If any of these assumptions are not met, then the Wald test may not be accurate.

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Answer:

Write the ratios as fractions. Then identify a common denominator. Rewrite the fractions using the common denominator. Compare the numerators. The greater numerator indicates the greater ratio.

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

113 is not divisible by 4... if you want an even number.

Answer: 3

Step-by-step explanation:

Answer:

2hrs 24 mins

Step-by-step explanation:

Ok so let's make this problem a bit simpler by splitting it up.

Tim paints a room in 6 hours.

So, we can also say that she paints 1/6 of that room in 1 hour

Bella paints it in 4 hours

So, we can also say that she paints 1/4 of that room in 1 hour

Now, lets see what we have:

Bella: 1/4 every hour

Tim: 1/6 every hour

The problem states that they are working together, so we need to add the values we have:

1/4 + 1/6

We cannot just add them, we must make them have the same common denominator.

LCD is 12, you can find that by just doing the times tables for 4 and 6 and seeing what number they match on first.

3/12 + 2/12 = 5/12

So, tim and bella working together paint 5/12 of a room in 1 hour.

They paint 5/12 of a room in 60 minutes

They paint 1/12 of the room in 12 minutes(divide both values by 5)

So if they paint 1/12 of the room in 12 minutes, we can multiply both values by 12 to get our answer.

They paint the full room in 144 minutes(12*12).

144 minutes is 2 hours and 24 minutes

1) 25%of50=$12.5. 50-12.5=37.5

2)20%of21=$4.2. 21-4.2=16.8

3)5%of12=$0.6.    12-0.6=11.4

HOPE THIS HELPED!!!

Answer:

1. $37.50

2.$16.80

3. 0.41

Step-by-step explanation: