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
enot [183]
3 years ago
8

Y is inversely proportional to V1+x. When x = 8, y = 2. Find y when x = 15.

Mathematics
1 answer:
murzikaleks [220]3 years ago
6 0

Answer:

y = 1.5

Step-by-step explanation:

Given x is inversely proportional to \sqrt{1+x} , then the equation relating them is

y = \frac{k}{\sqrt{1+x} } ← k is the constant of proportion

To find k use the condition when x = 8, y = 2

2 = \frac{k}{\sqrt{1+8} } = \frac{k}{\sqrt{9} } = \frac{k}{3} ( multiply both sides by 3 )

6 = k

y = \frac{6}{\sqrt{1+x} } ← equation of proportion

When x = 15 , then

y = \frac{6}{\sqrt{1+15} } = \frac{6}{\sqrt{16} } = \frac{6}{4} = \frac{3}{2} = 1.5

You might be interested in
Choose three intervals on the real number line that contain both rational and irrational numbers. Do you think that any given in
Helen [10]

Any real number line ranges from negative infinity to positive infinity. A real number number line consists of all the rational and irrational numbers. Let us take three intervals which contain both the rational and irrational numbers.

First interval:  [3,4]

Since every integer is a rational number, 3 and 4 are both rational. In this interval there occurs the value of π (3.14159..) which is an irrational number.

Second interval :  [0,2]

0 and 2 are integers and hence are rational. In this interval, occurs √2 (1.41421...) is an irrational number.

Third interval : [2,3]

In this interval, Eulers number 'e' lie whose value is (2.718281.. )

Hence we can conclude that, there occurs an irrational number between any two rational number.

3 0
3 years ago
Ella has 425 more bracelets to sell. She wants to
umka2103 [35]

Answer:

I disagree . I don’t agree because if you have 25 bags with 20 braclets in each then you would just waste So many bags because you can fit 500 bracelets in those bags all together.

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

4 0
3 years ago
Read 2 more answers
Help me asap!!!!
qaws [65]

Answer (numbers needed in boxes, going from top to bottom):

1

-1

-3

3

Step-by-step explanation:

f(x) is another way of saying y. So, the table is asking, "when substituting these x values for the x's in the function, what does y equal?" So, to answer the question, substitute each x value into the equation and solve.

1) Start with the x value of 1. Substitute 1 for x in y = 2x - 1 and solve:

y = 2(1)-1\\y = 2 - 1\\y = 1\\

So, when x equals 1, y equals 1. Therefore, the first box on the top must be filled out with the number 1.

2) Do the same with the rest of the x values. Here are the steps to solve each one, going in order from the top towards the bottom:

x = 0

y = 2(0) - 1\\y = 0 - 1\\y = -1

x = -1

y = 2(-1) - 1\\y = -2 -1 \\y = -3\\

x = 2

y = 2(2)-1\\y = 4-1\\y = 3\\

8 0
3 years ago
What is the GCF of 28ab and 42b?<br> 6b<br> 14b<br> 4b<br> 7b<br> NEED ASAP
grigory [225]

Answer:

14b

Step-by-step explanation:

Here, we want to get the greatest common factor of the two terms

The greatest common factor can be obtained by finding the expression that factor the given expression

We have this as;

14b(2a + 3)

So the greatest common factor is 14b

3 0
3 years ago
0.00000000828860 in scientific notation
azamat

0.00000000828860 upto which decimal?


6 0
3 years ago
Other questions:
  • Why do axioms exist in geometry
    8·1 answer
  • Janet bought a pair of sandals for $120.00. She needs to pay the 7% sales tax. How much will Janet pay in sales tax?
    7·2 answers
  • WILL GIVE BRAINLIEST which of the following is a solution to <img src="https://tex.z-dn.net/?f=tanx%2B%5Csqrt%7B3%7D%20%3D0" id=
    12·1 answer
  • A coordinate plane is labeled Street on the x-axis and Avenue on the y-axis. Ping is at point (3, 6) and Ari is at point (21, 18
    11·2 answers
  • Find the value of x.
    9·1 answer
  • The black graph is the graph of y = f(x) . Choose the equation for the red graph
    5·1 answer
  • I WILL GIVE BRAINLIEST!
    6·1 answer
  • Callum is walking 270 miles to raise money for cancer research. He plans to walk 1/9 of the distance each day. After 7 days, how
    9·1 answer
  • Can you help me plz
    7·1 answer
  • What is the value of x?<br> B<br> 75°<br> Enter your answer in the box.<br> X=<br> 50°<br> с<br> х
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!