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Alina [70]
4 years ago
5

Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16

Mathematics
1 answer:
Oxana [17]4 years ago
6 0

The radius is 4.

Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16

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If f is a continuous function such that the integral from 1 to 4 of f of x, dx equals 10, evaluate the integral from 2 to 8 of 2
IgorLugansk [536]

Answer: 10

Step-by-step explanation:

Since integral from 1 to 4 of f(x) =10

To evaluate integral from 2 to 8 of 2 times f(2x), using substitution method

Let U = 2x, dU = 2dx, dx = dU/2

Evaluate the limit, upper limit gives dU = 2*4 = 8, lower limit gives dU = 2*1 = 2.

Since this limit are the same as the limit for the question,

Therefore, F(4) - F(1) = F(8) - F(2) = 10

Substituting dx=dU/2

Gives,

Integral from 2 to 8 of 2 times f(2x)= (1/2)(2)(F(8)-F(2)) = 10

6 0
3 years ago
What is the distance between parallel lines y=x+3 and y=x+1, rounded to the nearest hundredth?
riadik2000 [5.3K]

Answer:

The distance is 1.41 to nearest hundredth.

Step-by-step explanation:

The line y = x + 3 passes through the point (0, 3) on the yaxis.

Find the perpendicular line passing through this point:

y  - 3 = -1(x + 0)

y = -x + 3

Now find the point where this line intersects the line y = x + 1:

y = -x + 3

y = x + 1

-x + 3 = x  + 1

3 -1 = x + x

2x = 2

x = 1

and y = 2

So this point is (1, 2)

We require the distance between this point and (0, 3)

This = √((3-2)^2 + (0-1)^2) = √2

= 1.4142

3 0
2 years ago
An 8-sided die is rolled. Find the probability of rolling a 1 or even number
leonid [27]

The probability of rolling a 1 or an even number is 5/8.

If there are 8 sides of the die from numbers 1-8, the numbers of the probability are 1, 2, 4, 6, and 8. That makes 5 numbers out of 8 possible numbers. So, the probability is 5/8.(62.5%)

7 0
3 years ago
Jan uses 6 grams of tea leaves to make 24 fluid ounces of tea. Last week she made 288 fluid ounces of tea. How many grams of tea
Reil [10]
Hello!

288 / 24 = 12

6 * 12 = 72

Jan used 72 grams of tea leaves to make tea. 
4 0
3 years ago
What is the solution of -5x &gt; 25? <br> a. x &gt; -5 <br> b. x 5 <br> d. x &lt; 5
devlian [24]
The solution possible can be correct by dividing both sides by -5 ;Sooo x>-5.....
5 0
3 years ago
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