Answer:
147 hummingbirds are in the sanctuary.
Step-by-step explanation:
The answer can be found using the given percentage. Stating that 35% of the birds in the sanctuary are hummingbirds means that the amount of hummingbirds is 0.35 times the total amount of birds.
[tex]420 \: \times \: 0.35 \: = 147[/tex]
Percentages can always be converted to a decimal number:
(1% = 0.01 ; 10% = 0.10 ; 100% = 1.00; etc.)
If a town with a population of 10000 doubles in size every 43 years, what will the population be 86 years from now
Answer:This is an exponential growth problem. If the population doubles periodically, it follows a law like this:
P(t) = P(0)ekt
where P(0) is the initial population at time t=0, and k is a constant with units of years-1.
To find k, let t=0. Then P(t) = P(0) = initial population = 5000.
Since the population doubles every 12 years, we can write
P(t+12) = 2P(t)
P(0)ek(t+12) = 2[P(0)ekt]
Simplifying,
e12k = 2
k = ln(2) / 12 = 0.0577623 years-1
Finally,
P(t) = 5000e0.0577623t, t in years
Then at t=48 years from now,
P(48) = 5000e(0.0577623 * 48) = 80,000
Step-by-step explanation:
Stock sold at 23. at the start of
trading. It was up 33 points at the
end of trading. What was the price
at the end of trading?
Answer:
Step-by-step explanation:
89k
Answer:
89k is the answer
Step-by-step explanation:
answer=89k
helpppppppppp meeeee
Answer:
4.5
Step-by-step explanation:
help solve please! (image)
Answer:
4
Step-by-step explanation:
[tex](20-2^{2} )[/tex] ÷ [tex](6-2)[/tex]
(20-4) ÷ 4
16 ÷ 4=4
Answer:
2
Step-by-step explanation:
Here we're "evaluating," not solving, the given expression.
Substitute -2 for x and 6 for y:
20 - (-2)^2 20 - 4
--------------- = -------------- = 16/8 = 2
(6) - (-2) 8
The value of this expression, when x = -2 and y = 6, is 2.
given that any function of f(x)=x+a/x, where a and can be any value,will have the inverse of the form f^-1(x)=a/x-1
find the inverse of f(x)=x+4/x
please add your working
If f^(-1) is the inverse of f, then
f(f^(-1)(x)) = x
It looks like f(x) = (x + a)/x. This gives us
f(f^(-1)(x)) = (f^(-1)(x) + a)/f^(-1)(x) = x
Solve for f^(-1)(x) :
f^(-1)(x) + a = x f^(-1)(x)
f^(-1)(x) - x f^(-1)(x) = -a
(1 - x) f^(-1)(x) = -a
f^(-1)(x) = -a/(1 - x)
f^(-1)(x) = a/(x - 1)
If a = 4, then the inverse is f^(-1)(x) = 4/(x - 1).
6.1% of 40 is what number
Answer:
2.44
Explanation:
The number of 6.1% of 40 is 2.44.
If you can start a game every 2 minutes, and you get paid $40 for every 100 games, What is the least amount of time it
will take for you to earn at least $900
:
fyubwagcduysrewucf ac VYRVYVFYEVEY FGVEGOWFVGEWVdyVWUVyigygdgvfvgfvew fbqy vwfyv
How do I find the slope
Answer:for a graph u use rise over run. If u just have the points u use the formula which is m=y2-y1/x2-x1
Step-by-step explanation:
5/9 of 7m limit, 2/7 of how many meters?
Answer:
1.1 m limit
Step-by-step explanation:
5/9*2/7=10/63
10/63*7 =70/63
= 1.1 m
If the probability of an event is 2/7, then the probability of the complement is:
9514 1404 393
Answer:
5/7
Step-by-step explanation:
If the probability of an event is p, the probability of the complement of the event is ...
q = 1 -p
q = 1 -2/7 = 5/7
The probability of the complement is 5/7.
What is the square foot area of a room with a length of 10¾ feet and a width of 8½ feet?
Answer:
91 3/8
Step-by-step explanation:
10 3/4 x 8 1/2 = 91 3/8
f f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x))? On a coordinate plane, a straight line has a positive slope and goes through (negative 2, negative 1), (0, 0), and (4, 2). On a coordinate plane, a straight line has a positive slope and goes through (negative 3, negative 3), (0, 0), and (3, 3). On a coordinate plane, a straight line has a negative slope and goes through (negative 4, 2), (0, 0), and (4, negative 2). On a coordinate plane, a straight line has a negative slope and goes through (negative 3, 3), (0, 0), (3, negative 3).
Using inverse function concepts, it is found that the graph of f(g(x)) is given as follows:
On a coordinate plane, a straight line has a positive slope and goes through (-3,-3), (0, 0), and (3, 3).
What happens when two inverse functions are composed?When two functions f(x) and g(x), that are inverse of one another, are composed, that is, y = f(g(x)), the resulting function is given by:
y = x.
Hence the graph of f(g(x)) is given as follows:
On a coordinate plane, a straight line has a positive slope and goes through (-3,-3), (0, 0), and (3, 3).
More can be learned about inverse functions at https://brainly.com/question/8824268
#SPJ1
A bakery prepares boxes of desserts. Each box contains twice as many cookies as brownies. Which line on the graph depicts the number of cookies relative to the number of brownies?
a(first screenshot
b(second screenshot
c( third screenshot
d(fourth screenshot
Answer: First graph.
Step-by-step explanation:
Let C be the number of cookies, and B the number of brownies.
Each box has 2B = C [2 brownies and 1 cookie]
Box B C
1 2 1
2 4 2
3 6 3
4 8 4
Graph 1 matches this data. A line with a slope of 2.
how do you do this, like step by step bc I w9uld like to understand step by step so I can do it myself for future trys
Answer:
Step-by-step explanation:
how do you do this, like step by step I w9uld like to understand step by step so I can do it myself for future
-3w+15w+7=8w+43 what does w equal?
Answer:
w = 9
Step-by-step explanation:
- 3w + 15w + 7 = 8w + 43 , simplifying
12w + 7 = 8w + 43 ( subtract 8w from both sides )
4w + 7 = 43 ( subtract 7 from both sides )
4w = 36 ( divide both sides by 4 )
w = 9
W=9
first, you simplify the expression.
12w + 7 = 8w + 43.
After that, we group all the w terms on the left side of the equation.
Subtract 8w from both sides:
12w + 7 - 8w = 8w + 43 - 8w
Group like terms:
12w - 8w + 7 = 8w + 43 - 8w
Simplify the arithmetic:
4w + 7 = 8w + 43 - 8w
Group like terms:
4w + 7 = 8w - 8w + 43
Simplify the arithmetic:
4w + 7 =43
Then, we group all constants on the right side of the equation
Subtract 7 from both sides:
4w + 7 - 7 = 43 - 7
Simplify the arithmetic:
4w = 43 - 7
4w = 36
Now, we isolate the w. Divide both sides by4:
4w / 4 = 36 / 4
Simplify the fraction:
w = 36/4
Find the greatest common factor of the numerator and denominator:
w = 9 × 4/1 × 4
Factor out and cancel the greatest common factor:
w = 9
A ten year old girl was 4 feet and 9 inches , simce then , she has grown 5 inches tall, how tall is she.?
Answer: 14
Step-by-step explanation:
Write fractions in simplest form 9/10 + (-3)
Answer:
-2.1=Step-by-step explanation:
Help me on number one please
Answer:
The correct answer would be B
Step-by-step explanation:
HEEELLLPPPPPPPPP THIS IS HARD TO UNDERSTANDDDDDDDD
C=2πr 的替代公式是 C=πd。
这是直径，是给定的测量值。
这意味着我们可以：
C = π*20 = 62.8ft
本题已由中国数学会官方解答（现有会员：3人）
Find the area of the figure.
how to solve: -4(2x - 5) = 3x -13
~one variable linear equation
==============================
-4(2x - 5) = 3x - 13
= -8x + 20 = 3x - 13
= -8x + 20 - 3x = -13
= -8x - 3x = -13 - 20
= -11x = -13 - 20
= -11x = -33
= x = -33 ÷ -11
= x = 3 ✔️
~ nice to help you ^^
The function F(x)= x^3–3x^2+2x rises as x grows very small.
A. True
B. False
PLEASE HELP MEEEEE
An electronics retailer sells a washing machine at cost price (how much the retailer paid for it) of $400 with a profit of 20%. What price does the customer pay?
Answer:
$480
Step-by-step explanation:
They sold the machine for $400 but made a profit of 20%.
This mean you would take 400 × .20
This gives you 80
That means the retailer got an extra 20% or $80
for the washing machine.
$400 + $80 = $480
pls help if ur good at math
Answer:
-3
Step-by-step explanation:
Answer:
y= -1/2 x -8
Step-by-step explanation:
as following the two points,
formula must be y=mx+b
slope= - (1/2) x
b= -8
PLZ HELP!!!!!!!!
what is 5 x 2 + 7² = ???
Answer:
The Answer is 59
Step-by-step explanation:
5*2+7^2
=5*2+49
=10+49
=59
I hope that you have found this answer to be helpful. Have a wonderful day.
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
what multiplies to get -160 and adds to get 36
Answer:
-36/161
Step-by-step explanation:
-160 · x = 36 + x
I hope that this helps!
Answer ASAP. :) Thank you!
Answer:
c = 55
Step-by-step explanation:
I would solve this by cross multiplying, but some teachers don't appreciate you skipping a step like that. Instead:
[tex]\frac{5}{2} =\frac{c}{22}[/tex]
First, multiply both sides by 2:
[tex]5=\frac{2c}{22}[/tex]
Then, multiply both sides by 22:
[tex]2c=110[/tex]
Now, just solve for c by dividing both sides by 2:
[tex]c=55[/tex]
Answer:
C = 55
Step-by-step explanation:
To figure out c you must first isolate c so there shouldn't be any other numbers or signs (addition, subtraction, division, and multiplication) on the same side of the equal sign as variable C.
The inverse of dividing 22 is multiplying 22 on both sides of the equation.
You would get 22/1 * 5/2 = C. 22 * 5 is 110 and 1 * 2 is still 2 so 110/2 = C.
Enter 110/2 into the calculator and you would get C = 55
What is the simplified ratio of:
8 weeks is to 12 days
Answer:
14:3
Step-by-step explanation:
8 weeks is 56 day. Know we have 56:12 divide those by 2 and we get 28:6
divide those by 2 and get 14:3 We cannot do anymore changes to that.
PLEASE HELP ME OML
Given:
A
C
‾
⊥
B
D
‾
AC
⊥
BD
and
∠
A
≅
∠
C
.
∠A≅∠C.
Prove:
△
A
B
D
≅
△
C
B
D
△ABD≅△CBD.
Answer:
Step-by-step explanation:
The answer is ac
Find the slope of the line.
Answer:
1
Step-by-step explanation:
it can't be 2 because a slope is always in the mid or after a starting point I think..
Hello there! (:
To find the slope of this graph, we must calculate the rise over the run.
The rise is the amount of units we move up or down; the run is the amount of units we move right or left.
So here, we move 2 units up and 4 units to the right:
[tex]\frac{2}{4}[/tex]
We can reduce our fraction (divide the top and bottom by 2):
[tex]\frac{1}{2}[/tex]
Hope it helps! Please mark Brainliest; I would really appreciate that! (:
~SparklingFlower (:
