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Nostrana [21]
3 years ago
12

Please I need the answer only​

Mathematics
1 answer:
lawyer [7]3 years ago
6 0

Answer:

w = 1.6

Step-by-step explanation:

Given w varies inversely as \sqrt{x} then the equation relating them is

w = \frac{k}{\sqrt{x} } ← k is the constant of variation

To find k use the condition when x = 4, w = 4

k = w\sqrt{x} = 4 × \sqrt{4} = 4 × 2 = 8

w = \frac{8}{\sqrt{x} } ← equation of variation

When x = 25, then

w = \frac{8}{\sqrt{25} } = \frac{8}{5} = 1.6

You might be interested in
question 17 on a number line, point s is located at – 3 and point t is located at 9 . what is the location of point r on s t giv
KATRIN_1 [288]

The location of R on the number line will be 15/7.

Number line:

Number line is used for the visual representation of numbers on a straight line.

Basically, Zero (0) is considered to be the origin of a number line. The numbers to the left of 0 are negative numbers and the numbers to the right of 0 are all positive numbers.

Given,

On a number line,

point S is located at – 3 and

point T is located at 9.

Ratio of S and T = 3:4

We need to find the location of point R on S and T.

According to the given details,

The distance from S to T

=> 3 + 9 = 12

Through this we know that,

=> SR + RT = 12 ---------------------(1)

Based on the ratio,

S/T = 3/4

Which is similar to,

SR/RT = 3/4

So,

SR = 3/4 RT -----------(2)

Apply the value of SR on equation (1),

Then

3/4RT + RT = 12

=> 7/4 RT = 12

=> RT = 12 x (4/7)

=> RT = 48/7

Now the location of point R,

=> OT - RT = 9 - 48/7

=> 15/7

Hence "The location of R on the number line will be 15/7".

To know more about Number line Here

brainly.com/question/13425491

#SPJ4

7 0
1 year ago
PLEEEEEEEEEEASE HELP
Aleks [24]
If Tom throws the dart 30 times, the denominator of the fraction would be 30, as that is the total number, and if he actually hits the target 20 times, that would be the nominator of the fraction as that is the amount out of the total that he hits the target. So if the fraction is 20/30 for the times he hits the target, we can say that 10/30 is the fraction (or probability) that he will miss. We can simplify the fraction by dividing 10 on both sides, getting 1/3. On the bottom the question  with the die has 3 scenarios, hit, miss, or neither. it misses when it is 5 or 6, it hits when the die is 1 or 4, and when the die is 2 or 3, nothing happens. as a die has 6 sides, the denominator is 6, and as there is 2 scenarios where you miss the numerator is 2. The fraction or probability for this one, would be 2/6 or 1/3. Using the same math for the following, you can get 1/3 for the die, 1/3 for the first spinner, 1/5 for the first number generator, 1/3 for the second number generator, and 1/3 for the second spinner. As the original part with Tom has a probability of 1/3, we are looking for equal probability, so the correct simulations would then be the die, the first spinner, the second number generator, and the second spinner, while the rest would be incorrect. Hope this helps!<span />
8 0
3 years ago
Given parallelogram ABCD, diagonals AC and BD intersect at point E. AE=2x, BE=y+10, CE=x+2 and DE=4y−8. Find y.
hodyreva [135]

9514 1404 393

Answer:

  B. 6

Step-by-step explanation:

The diagonals of a parallelogram intersect at their midpoints, so ...

  DE = BE

  4y -8 = y +10

  3y = 18 . . . . . . . add 8-y

  y = 6 . . . . . . . . divide by 3

__

<em>Additional comment</em>

The value of x is found the same way:

  2x = x+2   ⇒   x = 2

3 0
2 years ago
Simplify the following expression: NEED HELP QUICK PLZ :(
Anna71 [15]
The answer is B

-8y + 7y = -y

When the signs are different, subtract and take the sign of the bigger number.
5 0
3 years ago
Help the question is i the picture !! Ps. If you feeling down or want someone to talk to I am here and only write in comments if
allochka39001 [22]

Answer:

The book has total of 210 pages.

Chris needs to read 63 pages.

Step-by-step explanation:

Answer attached...

Hope it helps :)

3 0
3 years ago
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