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3 years ago

For the equation, decide if it is always true or never true. x + 1/2 = x − 1/2

Mathematics

2 answers:

Eduardwww [97]3 years ago

7 0

Answer:

wjsj

Step-by-step explanation:

snsnsnsnsnnsnsnsjsbsbshs

Lorico [155]3 years ago

3 0

Answer:

Step-by-step explanation:

its false

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A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

djyliett [7]

Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

So, the function is:

$y=ab^x$

$y=120 * 1.1^x$

To calculate the monthly rate (r), we have:

$y =a(1 + r)^x$

Compare to: $y =ab^x$

$1 + r = b$

Make r the subject

$r = b-1$

Substitute $b = 1.1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

$r = 10\%$

5 0

3 years ago

Can someone answer this please so I can go to the back page

igomit [66]

Blake has 25 CD's.

25 times 3 = 75
75 + 7 = 82

Joel has 82 CD's.

If Joel has twice as many as Mariella, then divide 82 by 2 and you get 41.

Mariella has 41 CD's.

7 0

4 years ago

Help me with this pls

beks73 [17]

The answer is B as I believe

8 0

3 years ago

Read 2 more answers

If P the incenter of triangle JKL, find MP.

hram777 [196]

9514 1404 393

Answer:

MP = 38

Step-by-step explanation:

Each of the lengths MP, NP, OP is the radius of the incircle, so they are all congruent.

3x +14 = 9x -34

48 = 6x . . . . . . . . . . . . . . add 34-3x to both sides

24 = 3x . . . . . . . . . . . . . . divide by 2 (we don't need x; we need 3x or 9x)

NP = 3x +14 = 24 +14 = 38

NP = OP = MP = 38

4 0

3 years ago

Consider the logarithmic function f(x) = log10(x).

disa [49]

$log_{10} 50=1.70$

3 0

4 years ago

Read 2 more answers