What is 2 radical 15 squared

Answers

Answer 1

Answer: $2√(15^2)=2\cdot15=30\n\n\n2√(15^2)=2\cdot\left(15^2\right)^(1)/(2)=2\cdot15^{2\cdot(1)/(2)}=2\cdot15=30$

$\left(2√(15)\right)^2=2^2\cdot\left(√(15)\right)^2=4\cdot15=60\n\n\left(2√(15)\right)^2=2^2\cdot\left(√(15)\right)^2=4\cdot\left(15^(1)/(2)\right)^2=4\cdot15^{(1)/(2)\cdot2}=4\cdot15^1=4\cdot15=60$

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On discovering that her family had a 70% risk of heart attack, Erin took a treadmill test to check her own potential of having a heart attack. The doctors told her that the reliability of the stress test is 67%. What is the probability that Erin will not have a heart attack and the test predicts that she will?
Please help!!! i’ll give brainless and 10 points if that helps persuade
If m< 1 =115 , find m<3
Use the quadratic formula to solve 2y2 + 6y – 8 = 0. A {–4, –1} B {4, –1} C {–4, 1} D {4, 1}
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Two factors of –48 have a difference of 19. The factor with a greater absolute value is positive.. . Give the sum of the factors given?. . –19.
–13.
13.
16

Answers

x y = - 48
x - y = 19
y = x - 19
x ( x - 19 ) = - 48
x² - 19 x + 48 = 0
x² - 3 x - 16 x + 48 = 0
x ( x - 3 ) - 16 ( x - 3 ) = 0
( x - 3 ) ( x - 16 ) = 0
Factors : x = 16, and y = -3
( 16 * ( -3 ) = -48; 16 - (-3 ) = 16 + 3 = 19 )
Sum of the factors : 16 + ( -3 ) = 16 - 3 = 13
Answer : C ) 13.

What is the answer to this problem?

Answers

The slope of a line is $(dy)/(dx)$

where $d$ is the difference and $y$ and $x$ are the values.

In this case, the difference in $y$ is 10 and the difference in $x$ is 0

And division where the denominator being 0 leads to the answer being Undefined or Infinity as the line is directly on the $y$ axis.

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Answers

Answer:

Step-by-step explanation:

x^4 · x^-2 = x^(4-2)= x^2 is the answer

Amar and his friends went to a movie at 4:45 p.m. The movie ended at 6:20 p.m. PART A How long was the movie in hours and minutes?

Answers

Answer:

The movie was 1 hour and 35 minutes long. (Or 95 minutes long)

Step-by-step explanation:

Well let's see:

It will take 15 minutes from the start to reach 5:00 PM

4:45+0:15=5:00

Now it will be 1 hour and 20 minutes from 5:00 PM to reach the end time of the movie.

Adding the minutes and hours together:

1 hour + 20 minutes + 15 minutes = 1 hour and 35 minutes

Answer:

1:35

Step-by-step explanation:

4:45 is where you start. If you go an hour at would be 5:45. Then count to 6:20. if it's tough go to a silent place and try not to think of anything else just of what your counting to. Hope this helps!

Point-slope form to slope-intercept form

Answers

y=mx+b
y-y1=m(x-x1)

They are different, and the conversion depends on what you need.

What you need:
y-y1=m(x-x1)
y-y1=mx-mx1 (distribute the m)
y=mx-mx1+y1 (move the y1)
y=mx+b (combine mx1 and y1)

the rileys are replacing the carpet on their outdoor deck. the deck is a regular hexagon with radius 9ft. the cost for the carpet and installation is $3.75/ft^2. what will it cost to replace the carpet? Have to show work on how i got the answer

Answers

Hexagon radius = side = r =9 ft.

Hexagon Area = (3√3)/2 * r²

∴ Area = (3√3)/2 * 9² ≈ 210.444 ft²

The cost for the carpet and installation is $3.75/ft²

∴ The total cost = Area * cost per ft²
= 210.444 * 3.75
= $ 789.166

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