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3 years ago

Please answer fast!!!!!

Mathematics

2 answers:

BlackZzzverrR [31]3 years ago

6 0

Answer:

x = 2

Step-by-step explanation:

note that 4096 = $8^{4}$ , then

$8^{2x}$ = $8^{4}$

Since bases on both sides are equal, both 8 , then equate the exponents

2x = 4 ( divide both sides by 2 )

x = 2

marishachu [46]3 years ago

4 0

Answer:

x = 2

Step-by-step explanation:

$8^{2x} = 4096$

Step 1 :- Write 4096 in the exponential form with the base of 8.

$8^{2x} = 8^4$

Step 2 :- Since the base of both equation is same , set the exponents equal.

2x = 4

Step 3 :- Divide both side by 2

${2x}{2} = \frac{4 }{2}$

x = 2

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15 less than a number S is three more than 9 times a number T. Solve for S

lbvjy [14]

Answer:

s = 9t + 18

Explanation:

Set up your equation

s - 15 = 9t + 3

Now get s by itself by adding 15 to both sides

s + 0 = 9t + 3 + 15

s = 9t + 18

If you know the value of t, plug that into the equation to solve further.

5 0

4 years ago

The sum of two numbers is 44. The second number is 4 less than three times the first number. Let x represent the first number an

MakcuM [25]

Answer:

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3 0

3 years ago

"The major disadvantage of crude rates is that:

Tpy6a [65]

Answer:

<h3>The option D) All of the above is correct</h3><h3>The major disadvantage of crude rates is that:</h3>

They may not allow for comparison of populations that differ
They do not permit comparisons of populations that vary in age distribution.
They are difficult to calculate from available data sources.

Hence options A ,B and C are correct

Step-by-step explanation:

Given that crude rate

To find the disadvantage of crude rate :

A crude rate is the number of new cases (or deaths) occurring in a specified $\frac{population}{year}$ , it can be expressed as the number of cases per 100,000 population at risk.

<h3>The major disadvantage of crude rates is that:</h3>

They may not allow for comparison of populations that differ
They do not permit comparisons of populations that vary in age distribution.
They are difficult to calculate from available data sources.

Hence options A ,B and C are correct

<h3>∴ The option D) All of the above is correct.</h3>

7 0

3 years ago

Does anyone know how to do this ?

AysviL [449]

9514 1404 393

Answer:

y = 21

Step-by-step explanation:

In straightforward fashion, we can find the midpoints of the two segments, and set the distance between them equal to 10.

M = midpoint of AB

M = (A+B)/2 = ((-1, 0) +(-3, 6))/2 = (-4, 6)/2 = (-2, 3)

N = midpoint of CD

N = (C+D)/2 = ((3, 1) +(5, y))/2 = (8, 1+y)/2 = (4, (1+y)/2)

Then the distance MN is given by the distance formula.

|N-M| = 10 = √((4 -(-2))² +((1+y)/2 -3)²) . . . . . distance formula*

100 = 36 +((1+y)/2 -3)² . . . . . square both sides

64 = ((1 +y)/2 -3)² . . . . . . . . . subtract 36

8 = (1 +y)/2 -3 . . . . . . . . . . . . (positive) square root

11 = 1+y/2 . . . . . . . . add 3

22 = 1+y . . . . . . . . . multiply by 2

21 = y . . . . . . . . . . . subtract 1

_____

* The distance formula is an application of the Pythagorean theorem. Basically, the differences of x- and y-coordinates are taken to be the legs of a right triangle. They length of the hypotenuse is the distance between the two points.

d² = (x2 -x1)² +(y2 -y1)² . . . . . . . from the Pythagorean theorem

d = √((x2 -x1)² +(y2 -y1)²) . . . . . the usual distance formula

8 0

3 years ago

1. 3x + 9 -2(x + 1) = 4x + 1

Julli [10]

none I think it's the answer is 2

3 0

3 years ago