1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
CaHeK987 [17]
3 years ago
6

Y is inversely proportional to x, when Y = 7, x = 4.

Mathematics
1 answer:
babymother [125]3 years ago
5 0

Answer:

The given statement  Y = 7, x = 4 is False.

Step-by-step explanation:

We are given:

Y is inversely proportional to x, when Y = 7, x = 4.

We need to tell if the statement is True or False: the constant of proportionality, k, is 20.

Y is inversely proportional to x

We can write it as: y\:\alpha \:\frac{1}{x}\\y=\frac{k}{x}

Now, we need to check when Y=7, x = 4 is true or false

We are given k = 20

Now, I can find value of y, by putting values of k and x in the equation:

y=\frac{k}{x}\\y=\frac{20}{4}\\y=5

When we put x = 4, and k =20, we get Y=5 and not Y=7

So, The given statement  Y = 7, x = 4 is False.

You might be interested in
Find the distance if you travel at a rate of 65mph for 7 hours. hint: distance = rate time.
Eva8 [605]
As stated, the answer is rate*time.
Think of it like this:
If you go 65 mph, then in one hour, you'll have gone 65 miles because that's what the unit indicates: miles per 1 hour.
So, 2 hours means 65*2=130 miles, and so on...
So, in 7 hours, it's 65*7=455 miles.
7 0
3 years ago
Read 2 more answers
If f (x) = startroot one-half x minus 10 endroot 3, which inequality can be used to find the domain of f(x)? startroot one-half
tankabanditka [31]

A function assigns values. The inequality one-half x minus 10 greater-than-or-equal-to 0 should be satisfied.

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

The domain of a function is a set of values for which the equation is satisfied. Since the function has under root values, the value which is under the root should be non-negative so that it does not give a complex number,  therefore,

The inequality \sqrt{\dfrac12x^2-10}\geq 0satisfied to find the domain of the function f(x).

Also, we can write that 0.5x²-10≥0 for the value to be positive.

Hence, the inequality one-half x minus 10 greater-than-or-equal-to 0 should be satisfied.

Learn more about Function:

brainly.com/question/5245372

6 0
2 years ago
Can someone please help me out thanks.
DENIUS [597]
Could you zoom in more I can barely see the equation and model.
5 0
3 years ago
A carnival game allows the player a choice of simultaneously rolling two, four, six, eight, or ten fair dice. Each die has six f
Leviafan [203]

Answer:

Roll two dices

Step-by-step explanation:

Every dice rolled has two chances of six of winning by showing a 1 or 2, which is the same as one chance of three.

On the opposite, you have four chances of six of loosing by getting a 3,4,5 or 6, which is the same as two chances of three.

Since the chances of loosing are bigger than the ones of winning, every roll makes it more probable of getting a 3,4,5 or 6, so you need to roll as few dices as possible, in this case two is the minimum allowed.

3 0
4 years ago
Help me please I don’t understand
denis23 [38]
<h3>Answer: A) around 80 cm</h3>

=========================================

Explanation:

The perimeter around the circle, aka circumference, is found through this formula

C = 2*pi*r

That's for a full circle. However, we're dealing with semicircles here, so we cut that in half to get pi*r to represent the curved distance around half the circle.

For the outer larger semicircle, that curved distance is exactly 14pi

For the inner smaller semicircle, that curved distance is 7pi, since 7 is half of 14.

The total curved portions is 14pi+7pi = 21pi

Then we add on the last straight line portion that's 14 cm long to get a total perimeter of 21pi+14

This is the exact perimeter in terms of pi.

The last thing to do is replace pi with 3.14 and simplify

21pi+14 = 21*3.14+14 = 79.94

This value rounds to 80

3 0
3 years ago
Other questions:
  • Robin ran 5 and 3/4 miles last week. She ran 4 and 1/10 miles this week. How many more miles did she run last week?
    5·1 answer
  • What is the number? :) (Well the rest of it ;-;)
    5·1 answer
  • Find the percent of change:<br><br><br>Original = 70<br><br><br>New = 100
    5·1 answer
  • Wasserman (1989) studied a process for the manufacturing of steel bolts. Historically, these bolts have a mean thickness of 10.0
    6·1 answer
  • Evaluate the expression for the given quantity<br> -9.8t^2 + 20t + 8 for t = -2, 0, 3.5
    14·1 answer
  • Give the standard form for 900.000 000 + 50 50.000 000 + 9.000 + 600 + 20 + 7
    7·1 answer
  • Please help brainiest to correct answer
    10·1 answer
  • Jason found the measure of angle A
    11·1 answer
  • 3 of 5<br> What is the nth term rule of the linear sequence below?<br> 13,7,1, -5, -11, ...<br> © T=
    15·1 answer
  • A. ten more than m
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!