Suppose Z varies directly with X and inversely with Y where X equals 3Y equals one and Z equals six what is the value of Z when X equals seven and why equals four

Answers

Answer 1

Answer:

k = 2

Z = 3.5

Step-by-step explanation:

Z = kX/Y

Where,

X = 3

Y = 1

Z = 6

Find k

Z = kX/Y

6 = k3/1

Cross product

6 * 1 = 3k

6 = 3k

k = 6/3

k = 2

what is the value of Z when X equals seven and why equals four

X = 7

Y = 4

Z = ?

k = 2

Z = kX/Y

= (2*7)/4

= 14/4

= 3.5

Z = 3.5


Related Questions

What is the relationship between the two quantities in the table? x y 1 30 2 60 3 90 4 120 The relationship between the quantities is “+ 90.” The relationship between the quantities is “Minus 90.” The relationship between the quantities is “+ 30.” The relationship between the quantities is “Times 30.”

Answers

Answer:

Your answer is C

Step-by-step explanation:

Have a nice day or night hope it helps

Answer:

It is simply C

Step-by-step explanation:

Please help, will mark brainliest!!

Answers

Answer:

30 inches

Step-by-step explanation:

we can use the pythagorean theorem where the legs are 24 and 18 and the hypotenuse is the diagonal

24² + 18² = c²

576 + 324 = c²

900 = c²

c = [tex]\sqrt{900}[/tex] which equals 30

please help me quick​

Answers

Answer:

15=0.5x+4

Step-by-step explanation:

The number of motorcycle helmets produced in a factory each day is a function of the
number of hours (h) the assembly line is in operation that day and is given by n =
P(t) =
75t-2t^2. The cost C of producing the helmets is a function of C(n) = 7n + 1000

Answers

Answer:

C(t)=525t-14t²+1000

Step-by-step explanation:

n =P(t) =75t-2t²

C(n) = 7n + 1000

(sub in 75t-2t² for n)

C(t)=7(75t-2t²)+1000

C(t)=525t-14t²+1000

Find the range of the data.

6, 8, 14, 4, 26, 24, 2, 4, 18, 9

Answers

24
Subtract minimum from maximum
26-2=24

Solve for x in the equation 4 = 32x.
*

Answers

Answer:

Your answer is in the Step by Step

Step-by-step explanation:

4=32x

We move all terms to the left:

4-(32x)=0

We move all terms containing x to the left, all other terms to the right

-32x=-4 x=-4/-32 x=1/8

Answer:

the answer is x=1/8

in the decimal form, it's x=0.125

Step-by-step explanation:

isolate the variable by dividing each side by a factor that doesn't contain the variable

hope this helps.

may I  please get a brainliest:)

3) Apply the distributive property to solve the following.
(11+2)-7
Answer:

Answers

Step-by-step explanation:

1) Simplify what's inside the parentheses first which is ( 11 + 2) Simplify 11 + 2 to 13.

[tex]13 - 7[/tex]

2) Simplify 13 - 7 to 6.

[tex]6[/tex]

Therefor, the answer is 6.

You have to add what’s in the parentheses first. That would be 11+2. That equals 13 now subtract by 7. Your answer will be 6

Silicone implant augmentation rhinoplasty is used to correct congenital nose deformities. The success of the procedure depends on various biomechanical properties of the human nasal periosteum and fascia. An article reported that for a sample of 13 (newly deceased) adults, the mean failure strain (%) was 26.0, and the standard deviation was 3.4. (a) Assuming a normal distribution for failure strain, estimate true average strain in a way that conveys information about precision and reliability. (Use a 95% confidence interval. Round your answers to two decimal places.)

Answers

Answer:

The 95% confidence interval for the true average strain is between 23.94% and 28.06%.

Step-by-step explanation:

We have the standard deviation of the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 13 - 1 = 12

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 12 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.18

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 2.18\frac{3.4}{\sqrt{13}} = 2.06[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 26 - 2.06 = 23.94

The upper end of the interval is the sample mean added to M. So it is 26 + 2.06 = 28.06

The 95% confidence interval for the true average strain is between 23.94% and 28.06%.

The product of two consecutive even numbers is 360. Find the numbers.


List each pair of numbers in parentheses, separated by a comma. Example: (1,2),(3,4).

Answers

Answer:

Step-by-step explanation:

Two consecutive numbers be 2x , (2x + 2)

(2x)(2x + 2) = 360

2x*2x + 2x *2 = 360

4x² + 4x = 360 {divide the equation by 4}

x² + x = 90

x² + x - 90 = 0

x² + 10x - 9x - 9*10 = 0

x(x + 10) - 9(x + 10) = 0

(x + 10)(x -9) = 0

x + 10 = 0

x = -10

2x = 2*(-10) = -20

2x + 2 = -20 + 2 = 18

(-20 , -18)

Kennedy won $3,000 from a radio contest. If she puts this money in a bank account that earns 2.9% interest compounded annually, how much total interest will she earn in 10 years?

Answers

If you use the formula you would get $3992.77 in 10 years

30 POINTS FOR ALL OF THESE, BRAINLIEST IF YOU GET THEM ALL CORRECT!!!

1. 30% of 70 equals what percent of 84?

A. 35%

B. 25%

C. 100%

D. 40%

2. 75% of 36 equals what percent of 58?

A. 86%

B. 39%

C. 63%

D. 46%

3. Mara spent 3/5 of her vacation in British Columbia. While in that province,
she spent ½ of her time in Vancouver. What fraction of her vacation did
Michaela spend in Vancouver? If her vacation lasted 20 days, how many
days did she spend in Vancouver? Explain your answer.

Answers

Answer:

#1

30% of 70 ⇒ 0.3*70 = 21x% of 84 = 21x*84/100 = 21x = 2100/84x = 25%

#2

75% of 36 = x% of 580.75*36 = 0.58x0.58x = 27x = 27/0.58x = 46.55%

#3

1/2 of 3/5 ⇒ 1/2*3/5 = 3/10 3/10 of 20 days ⇒ 3/10*20 = 6 days

7 Select the correct answer. A scientist is trying to predict the reglors of the world most likely to see a decrease in natural resources from population changes. Based on the evidence in the graph, what should the scientist conclude? ​

Answers

Answer:

A

Step-by-step explanation:

SOMEONE PLEASE ME RN I BEG YOU

Answers

Given:

The piece-wise function is:

[tex]F(x)=\begin{cases}4&\text{ if }0\leq x<2\\3&\text{ if }2\leq x<4\\2&\text{ if }4\leq x<6\end{cases}[/tex]

To find:

The domain of the given function.

Solution:

Domain of the a function is the set of those values for which the function is defined. In other words, the set of input values is called domain.

The given function is defined for the intervals [tex]0\leq x<2,2\leq x<4,4\leq <6[/tex]. So, the domain of the given function is

[tex]Domain=\{x|0\leq x<2,2\leq x<4,4\leq <6\}[/tex]

Therefore, the correct option is B.

AYUDAAAAAAAAAAAAA
PORFAVORRRR

Answers

Answer:

amigo tu

Step-by-step explanation:

10 1/8 +2 1/4
Show work please
And no links

Answers

Answer:

99/8

Step-by-step explanation:

Please refer to the attachment

9/8 is the answer I just took the test

Help me I really need this rn

Answers

Answer:

the answer is 9 please I hope i get it right

PLS HELP!!! i feel like it’s probably easy i’m just a little confused

Answers

Answer:

5

Step-by-step explanation:

It's an equilateral triangle

Answer:

Its 5 I think

Step-by-step explanation:

The trianlge is a isosceles triangle  so it's all equal

giving brainliest !! *easy*

Answers

Answer:

332.5º

Step-by-step explanation:

To convert radians to degrees, you multiply the radians by 180/π.

133π/72 • 180/π

We can see that the π's will cancel out. Therefore, we have:

133/72 • 180

Multiply.

133/72 • 180 = 23940/72

Simplify.

665/2 = 332.5

Your answer is:

332.5º

Hope this helps!

Answer:

332.5 º is the answer

Step-by-step explanation:

...

Which statement is true?
O A checking account is where you want to keep your spending money and a savings account is where you want to keep your savings.
O A checking is account is where you want to keep all of your money for spending and saving.
O A savings account is where you want to keep all of your money for spending and saving.
O A checking account is where you want to keep your savings, and a savings account is where you want to keep your spending money.
PREVIOUS

Answers

Answer:

the one thats true id "A checking account is where you want to keep your spending money and a savings account is where you want to keep your savings".

Simplify [ (4 + 8) x 3 ] /9

Answers

Answer:

4

Step-by-step explanation:

Simplify the given expression by doing each operation as per the order of operations. The order of operations is a systematic way of tackling an equation, that ensures that the result attained will be true when one solves the equation; remember, the order of operations states;

1. Parenthesis

2. Exponents

3. Multiplication/ Division

4. Addition/ Subtraction

Simplify the equation by combining terms as per the order of operations;

[ ( 4 + 8 ) * 3 ] / 9

= [ 12 * 3 ] / 9

= 36 / 9

= 4

you drink a beverage with 120mg of caffeine each hour the caffeine in your system decreases by about 12% how long until you have 10 mg of caffeine ​

Answers

Answer::

Step-by-step explanation:

the equation of a line that is perpendicular to y = 2x + 1 passes through the point (4,-3)

Answers

Step-by-step explanation:

perp. -1/2

y + 3 = -1/2(x - 4)

y + 3 = -1/2x + 2

y = -1/2x - 1

4 Pythagorean Theorem, Hypotenuse : HELP PLEASE ITS DUE I WILL GIVE BRAINLIIEST

Answers

Answer:

[tex]5\sqrt{82}[/tex] units

[tex]\sqrt{84910}[/tex] units

Step-by-step explanation:

According to Pythagoras theorem, square of hypotenuse is equal to sum of squares of other two sides.

Consider the first figure:

Let [tex]x[/tex] denotes length of the third side.

[tex]23^2+39^2=x^2\\529+1521=x^2\\2050=x^2[/tex]

[tex]x=5\sqrt{82}[/tex] units

Consider the second figure:

Let [tex]y[/tex] denotes length of the third side.

[tex]87^2+96^2=y^2\\7569+9216=y^2\\84910=y^2\\[/tex]

[tex]y=\sqrt{84910}[/tex] units

Find the surface area of the pyramid.
7 ft
3 ft
The surface area is
square feet.

Answers

Answer:

If I understand the definitions correctly,

"surface area" would be the total of all the areas of an object, while "lateral" surface area would exclude the base

so the surface area of a square pyramid

= area of the square base + 4(area of the triangle)

That's my "formua".

In both #1 and #2 you then give dimensions H, W, and L without defining them. If the base is square, how come we have different (W)idths and (L)engths

in #3 Diameter = 8, thus radius = 4

height = 7

Thus slant height of cone = √(4^2 + 7^2) = √65

surface area = πr(r+√(h^2+r^2)

= 4π(4 + √65) = appr 151.58

or surface area = πr^2 + πrs, where s is the slant height

= π(16) + π(4√65) = 151.58

I got the same answer using 2 established methods, none of the answers given match that.

Step-by-step explanation:

i hope this helps if not im sorry

75% of what is 124? Write your answer to the nearest tenth.

Answers

Answer:

165.3 (165 and 1/3)

Step-by-step explanation:

brainliest plz

Which simplified expression is the difference of (0.5n + 0.3) - (0.75n - 0.45) A: -0.25n + 0.15 B: 0.25n - 0.75 C: -0.25n + 0.75 D: 0.25n - 0.15 show work please

Answers

Answer:

(0.5n + 0.3) - (0.75n - 0.45)

0.5n + 0.3 - 0.75n + 0.45

-0.25n + 0.75

So it's C

A crate has a length of 19 1/3 feet, a width of 7 2/3 feet, and a height of 7 5/6 feet. What is the volume?

Answers

Answer:

931   10/54

Step-by-step explanation:

First you multiply 19 x 7 x 7 to get 931, then you multiply 1/3 x 2/3 x 5/6 to get 10/54. Finally you put them together to get 931 10/54

A golf pro wants to determine if Titleist Pro V1 golf balls (1) travel farther, on average, than Callaway Chrome Soft golf balls (2). A robot hits 9 of each ball, selected at random, and the distance traveled is measured. Assume the distances traveled are normally distributed. The average distance traveled by the 9 Titleist Pro V1 golf balls is 261.1 yards with standard deviation 10 yards, and the average distance traveled by the 9 Callaway Chrome Soft golf balls is 249.3 yards with standard deviation 12 yards.
Which test should the golf pro use to determine if Titleist Pro V1 golf balls travel a longer average distance than Callaway Chrome Soft golf balls?
a. pairedt test for means
b. paredz test for means
c. Ottest for proportions
d. test for means
e. test for means
f. Ottest for proportions

Answers

Complete options are;

A) Paired t-test for means

B) Paired Z-test for means

C) Z-test for proportion

D) t-test for means

E) Z-test for means

F) t-test for proportion

Answer:

B) Paired Z-test for means

Step-by-step explanation:

We are told that the distances travelled are normally distributed.

We are also trying to find out if the average distance travelled by the Titleist Pro V1 golf balls is farther than that of the Callaway Chrome Soft golf balls.

Also, the standard deviation of both cases are known.

Thus, this is where Paired Z-test for means is used.

According to the desired test, the correct option is:

a. paired t-test for means

At the null hypothesis, it is tested that ball 1 does not travel farther than ball 2, that is, the subtraction is of at most 0:

[tex]H_0: \mu_1 - \mu_2 \leq 0[/tex]

At the alternative hypothesis, it is tested if it travels farther, that is:

[tex]H_1: \mu_1 - \mu_2 > 0[/tex]

Since we have the standard deviation for the sample, the t-distribution is used.The values tested are greater than 1, hence, the test is for means.There are two samples, hence a paired test is used.

Considering the three bullet points above, the correct option is a.

For more on a paired t-test for means, you can check https://brainly.com/question/16162795

a family of seven people needs 45 Kg rice for a week how much rice does the family need for a month​

Answers

Answer:

there are 4 weeks in a month so if 45 kg is for 1 week then

Step-by-step explanation:

x=4 (weeks in a month)

=45x

=180 kg of rice

Help!!!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

The area would be 9 times compared to the area of the original square. To test this, you can let the side of the original square be equal 1. By tripling this side, the side becomes three. Utilizing the area of a square formula, A= s^2, the area of the original square would be 1 after substituting 1 for s. Then, you do the same for the area of the tripled square. With the substitution, the area of the tripled square would be 9. This result displays the area of the tripled square being 9 times as large as the area of the original square. This pattern can be used for other measurements of the square such as:

let s = 2, Original Area= 2^2 = 4 Tripled Area= (2(3))^2 = 6^2= 36. 36/4 = 9

let s = 3, Original Area = 3^2 = 9 Tripled Area - (3(3))^2 = 9^2 =81. 81/9 = 9

let s = 4, Original Area = 4^2 = 16 Tripled Area - (4(3))^2 = 12^2 = 144. 144/16 = 9

let s = 5, Original Area = 5^2 = 25 Tripled Area - (5(3))^2 = 15^2 = 225. 225/25 = 9

let s = 6, Original Area = 6^2 = 36 Tripled Area - (6(3))^2 = 18^2 = 324. 324/36 = 9

let s = 7, Original Area = 7^2 = 49 Tripled Area - (7(3))^2 = 21^2 = 2,401. 2,401/49 = 9

You can continue to increase the length of the square and follow this pattern and it will be consistent.

answer is 9

The area would be 9 times compared to the area of the original square. To test this, you can let the side of the original square be equal 1. By tripling this side, the side becomes three. Utilizing the area of a square formula, A= s^2, the area of the original square would be 1 after substituting 1 for s. Then, you do the same for the area of the tripled square. With the substitution, the area of the tripled square would be 9. This result displays the area of the tripled square being 9 times as large as the area of the original square. This pattern can be used for other measurements of the square such as:

let s = 2, Original Area= 2^2 = 4 Tripled Area= (2(3))^2 = 6^2= 36. 36/4 = 9

let s = 3, Original Area = 3^2 = 9 Tripled Area - (3(3))^2 = 9^2 =81. 81/9 = 9

let s = 4, Original Area = 4^2 = 16 Tripled Area - (4(3))^2 = 12^2 = 144. 144/16 = 9

let s = 5, Original Area = 5^2 = 25 Tripled Area - (5(3))^2 = 15^2 = 225. 225/25 = 9

let s = 6, Original Area = 6^2 = 36 Tripled Area - (6(3))^2 = 18^2 = 324. 324/36 = 9

let s = 7, Original Area = 7^2 = 49 Tripled Area - (7(3))^2 = 21^2 = 2,401. 2,401/49 = 9

You can continue to increase the length of the square and follow this pattern and it will be consistent.

How many perfect squares are there between 1,000,000 and 9,000,000?

2,802 Views

If the side of the square is triple, how many times will its area be as compared to the area of the original shape?

1,347 Views

Consider a square whose side is 1 unit. If the measure of its side is doubled, what will be its new area as compare to the smaller square? How about if the side of the smaller square was tripled, what will be its new area?

1,863 Views

If each side of a square was increased by 3 cm, the area would be 4 times that of the original square. What is the length of the side of the originally square?

1,702 Views

If the side of a square is tripled, how many times the perimeter of the first square will that of the new square be?

If the side of a square is tripped how many times will it area be, as compared to the area of the original square?

If the side of a square is tripled then the area would be increased 9 times assuming the goal is to keep the shape a square. Meaning if one side is tripled then all sides are tripled and all corners remain 90 degrees. X being the original length, then 3x is the tripled length. The area of a square is base times height. Where all sides are the same then the area of a square is x squared. Kinda how that term came about. So tripling one side triples all sides. So x times thee times x times three . So x squared times nine is the area of a square who’s side

If the side of a square is tripled, how many times will it’s area be as compared to the area of the original square?

Your question is a little tricky because of the phrase “the side”. Saying “the” side makes it sound like the square has only one when it really has four. It makes it a little difficult to divine your intent, i.e. did you intend for just one side to be tripled in which case the resulting figure would be a rectangle or did you intend for the final figure to still be a square in which case both dimensions would have to be tripled?

In the former case, the area would change by just a factor of 3. In the later, it would change by a factor of 9 as others have

x = square side

x^2 = original area

(3x)^2 = area of square with tripled sides

(3x)^2 / x^2 = 9 - divide the new area with the original one to see how many times larger it is.

The area will be nine times larger.

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