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Savatey [412]
3 years ago
15

The rare tweety-birds are decreasing at a rate proportional to the

Mathematics
1 answer:
Delvig [45]3 years ago
4 0
10,000+15x=9000 is the answer
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Can anyone please help me with this question
Ede4ka [16]

9514 1404 393

Answer:

  y ≥ 1/4x + 2

Step-by-step explanation:

The line is solid, and the shading is above it, so the inequality will have a form similar to ...

  y ≥ [the boundary line]

The y-intercept is y = 2, and the slope is 1 unit up for 4 units right, so 1/4. In slope-intercept form, the equation of the boundary line is ...

  y = mx + b . . . . . . for slope m and y-intercept b

This boundary line has equation ...

  y = 1/4x + 2

So, the inequality is ...

  y ≥ 1/4x + 2

4 0
3 years ago
i have a pair of red earrings and a pair of silver earrings what is the probability that i will get the pair of red earrings
den301095 [7]
1/4 I think bc there are 2 pairs of each and I total there are four earrings solo
3 0
4 years ago
The half-life of a radioactive element is five years. A scientist has 18 grams of the element. The equation
lianna [129]

Answer:

The equation that describes the amount of mass left after a time t of a radioactive isotope is the following:

where

is the mass of the sample at t = 0

is the half-life of the sample

For the element X in this problem,

We want to find the time t at which

So we need to re-arrange the equation making t the subject:

Step-by-step explanation:

7 0
3 years ago
The first inverse operation you would use to solve the equation 2+5x= -8 for x is subtraction. true or false?
jok3333 [9.3K]

Answer:

It would be True

Step-by-step explanation:

2+5x = -8

SUBTACT 2 on both sides and it would look like this:

5x = -8 - (2)

5X= -10

then DIVIDE 5 both side to get "X" ALONE,

x= -10/5

then divide -10 with 5

equal to:

x = -2

4 0
3 years ago
(-3,1) perpendicular to y=2/5x-4
miss Akunina [59]
(-3, 1)             y = 2/5x - 4 
 x₁  y₁              slope (m) = 2/5x

Since the equation we are looking for is perpendicular to y = 2/5x - 4, we need to find the opposite reciprocal slope. We have to flip the slope upside down and turn it negative.

2/5 ⇒ 5/2 ⇒ -5/2

So far, we have the equation y = -5/2.

Now, we need to find the y intercept by plugging in the given point into point slope form, which is...

y - y₁ = m(x - x₁) 

The subscripts in the y and x are just the x and y in (-3,1). They are just placeholders, not exponents.

y - 1 = -5/2(x + 3)
 y - 1 = -5/2x - 15/2
   + 1               +     1
------------------------------
 y = -5/2x - 13/2 ⇒ final equation


4 0
3 years ago
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