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Stella [2.4K]
3 years ago
11

850 1 2 3 842 834 829 Q Zoom 4 5 820 817 y A population of 850 birds decreases by roughly the same p

ercentage
every year. The table shows data values for the size, y, of the population
after x years. A researcher uses technology to fit an exponential
regression model to the data. If she uses her model to predict the size of
the bird population after 20 years, which value will she most likely obtain?
A
B
704
727
D
722
709
Mathematics
1 answer:
larisa86 [58]3 years ago
3 0
What is this I need help to
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Solve the inequality. Explain all steps and identify the properties used. 3a-4<_ 5
Ierofanga [76]
Well, you want to solve for a. You first add the 4 to both sides. 
3a-4<5
3a<9
Then you want to get a by itself so you divide both sides by 3. Since the 3 is positive you don't have to worry about switching the sign. It stays this way <

After you divided both sides by 3 you get a<3
3 0
3 years ago
In triangle ABC angle A=45 angle B =40 and a=7.Which equation should you solve to find b?
coldgirl [10]

We have been given that in triangle ABC angle A=45 angle B =40 and a=7. We are asked to find the equation that we can use to solve for 'f'.

We have two angles and opposite sides to these angles.

We will use Law of Sines to solve our given problem.

\frac{a}{\sin(A)}=\frac{b}{\sin(B)}=\frac{c}{\sin(C)}, where a, b and c are opposite sides corresponding to angles A, B, and C respectively.

The angle opposite to side b is 40 degrees and angle opposite to side a is 45 degrees.

Upon substituting these values in Law of Sines, we will get:

\frac{7}{\sin(45^{\circ})}=\frac{b}{\sin(40^{\circ})}

Therefore, our required equation would be \frac{7}{\sin(45^{\circ})}=\frac{b}{\sin(40^{\circ})}.

3 0
3 years ago
67,396 divided by 123
ruslelena [56]
547.9 is the answer to this
8 0
3 years ago
Read 2 more answers
Two more questions , 15 points.
Mumz [18]

The formula that is useful for solving both of these problems is ...

(v_2)^2-(v_1)^2=2ad\qquad\text{a=acceleration, d=distance}\\\\ \text{where $v_1$ and $v_2$ are initial and final velocities}

9. Given v₁=15, a=9.8, d=10, find v₂.

... (v₂)² = 15² + 2·9.8·10

... v₂ = √421 ≈ 20.5 . . . . m/s

10. Given d=12 m when a=-9.8 m/s² and v₂=0, find d when a=0.17·(-9.8 m/s²).

The formula tells us that d=(v₁)²/(2a), which is to say that the distance is inversely proportional to the acceleration. If acceleration is 0.17 times that on earth, distance will be 1/0.17 ≈ 5.88 times that on earth.

(12 m)/0.17 ≈ 70.6 m

7 0
3 years ago
Given the data 12,39,21,18,24,17,12,25
andreyandreev [35.5K]

Answer:

12,39,21,18,24,17,12,25

Step-by-step explanation:

3 0
2 years ago
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