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Oksana_A [137]
3 years ago
7

Which function has an axis of symmetry of x = −2?

Mathematics
2 answers:
natali 33 [55]3 years ago
7 0

Answer:

f(x) = (x + 2)2 − 1 (d)

Step-by-step explanation:

I took the test on Edge if that was what you were looking for

djyliett [7]3 years ago
4 0
Any function that has a -b value divided by 2a that equals -2 

use ax²+bx+c to figure it out 

the axis of symmetry formula is -b/2a=x
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Organisms A and B start out with the same population size. Organism A's population doubles every day. After 5 days, the populati
Zigmanuir [339]

Answer:

The number of times organism B's population is larger than organism A's population after 8 days is 32 times

Step-by-step explanation:

The population of organism A doubles every day, geometrically as follows

a, a·r, a·r²

Where;

r = 2

The population after 5 days, is therefore;

Pₐ₅ = = 32·a

The virus cuts the population in half for three days as follows;

The first of ta·2⁵ he three days = 32/2 = 16·a

The second of the three days = 16/2 = 8·a

After the third day, Pₐ = 8/2 = 8·a

The population growth of organism B is the same as the initial growth of organism A, therefore, the population, P₈ of organism B after 8 days is given as follows;

P₈ =  a·2⁸ = 256·a

Therefore, the number of times organism B's population is larger than organism A's population after 8 days is P₈/Pₐ = 256·a/8·a = 32 times

Which gives, the number of times organism B's population is larger than organism A's population after 8 days is 32 times.

3 0
3 years ago
Find the result when 40 is increased by 85%
miskamm [114]
47.05 is the anwser. When I used the calculator.
3 0
3 years ago
An observer measures the angle from the ground
BigorU [14]

Answer:

The answer is 138*

Step-by-step explanation:

The next one is 7

And the length of side X is 47m

The building is 31m tall

plz rate and don't let this get removed people need the help rn

3 0
4 years ago
Solve the following:<br> a) 4x 3= 2x + 7<br><br> b) 2x+6= 7x14
nikdorinn [45]
<h2><u>Correct question</u> : 4x - 3 = 2x + 7 </h2>

<h2><u>Solution</u> : 4x - 3 = 2x + 7 </h2>

4x - 2x = 7 + 3 \\  \\ 2x = 10 \\  \\ x =  \frac{10}{2}  \\  \\ x = 5.

<h2>•••••••••••••••••••••••••••••••••••••••</h2>

<h2><u>Correct Question</u> : 2x + 6 = 7x - 14</h2>

<h2><u>Solution</u> : 2x + 6 = 7x - 14</h2>

2x - 7x =  - 14 - 6 \\  \\  - 5x =  - 20 \\  \\ x =  \frac{20}{5}  \\  \\ x = 4.

7 0
2 years ago
If the perimeter of an equilateral triangle is 24cm, find the length of it's side​
Olegator [25]
Since an equilateral triangle has 3 equal length sides, and in this case the total of these 3 sides is 24cm, the length of one side is 24/3 = 8cm
5 0
2 years ago
Read 2 more answers
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