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3 years ago

Need help on this please help

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

3 0

Answer:

245

Step-by-step explanation:

that is the answer 245

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P varies directly with the square of R. When R is 4, P is 56. Find the value of P when R is 6

Sav [38]

Hey!
The formula of direct variation is y = kx. So we know that p = kr^2
Hint: after it says varies, it's basically the equal sign.
so we can set it up
56 = 4^2k
56=16k
now we want k alone so we have to divide 16 on both sides
k=3.5
We can now solve for p like it asks
p = 3.5*6^2
p=126
There's your answer!
Hope this helps!

6 0

3 years ago

Find the coordinates for the midpoint of the segment with endpoints given (10,6) (-4,8)

sergiy2304 [10]

To calculate the midpoint,here's the formula : ((x1+x2)/2 , (y1+y2)/2)
thus, we have:
((10+(-4))/2 , (6+8)/2)
=(6/2 , 14/2)
=(3,7)

The coordinate for the midpoint is (3,7)

hope it helps!

7 0

4 years ago

A marketing executive is studying Internet habits of married men and women during the 8am – 10pm time period on weekends ("prime

jolli1 [7]

Answer: Our required probability is 0.18.

Step-by-step explanation:

Since we have given that

Probability that husband is on the internet = 10% = 0.10

Probability that husband is not on the internet = 1-0.10 = 0.9

Probability that wife is on internet given that husband is on internet = 40% = 0.40

Probability that wife is on internet given that husband is not on internet = 20% = 0.20

Probability that wife is on internet is given by

$0.1\times 0.4+0.9\times 0.2\\\\=0.04+0.18\\\\=0.22$

So, Probability that the husband is also on internet given that wife is on internet is given by

$\dfrac{P(\text{wife and husband both on internet)}}{P(wife\ on \ internet)}\\\\=\dfrac{0.4\times 0.1}{0.22}\\\\=\dfrac{0.04}{0.22}\\\\=0.18$

Hence, our required probability is 0.18.

5 0

4 years ago

Find the length of x

Goshia [24]

Answer:

x = 8 $\sqrt{2}$

Step-by-step explanation:

The triangle is isosceles with legs congruent, both x

Using Pythagoras identity in the right triangle

x² + x² = 16²

2x² = 256 ( divide both sides by 2 )

x² = 128 ( take the square root of both sides )

x = $\sqrt{128}$ = $\sqrt{64(2)}$ = $\sqrt{64}$ × $\sqrt{2}$ = 8 $\sqrt{2}$

7 0

3 years ago

Muffins are sold in packages of 18 and cost $27 per package. Each of 6 friends gets an equal share of muffins from p packages of

Rina8888 [55]

Answer:

27/18= 1.5

18/6 = 3

3•1.5= 4.5

Step-by-step explanation:

$27 divided by 18 muffins equals $1.50, 18 muffins divided by 6 people equals 3, 3 muffins times $1.50 equals $4.50. So $4.50 is how much each person would have to pay.

5 0

3 years ago