A biologist is comparing the growth of a population of flies per week to the number of flies a lizard will consume per week. She has devised an equation to solve for which day (x) the lizard would be able to eat the entire population. The equation is 7x = 3x + 4.
Explain to the biologist how she can solve this on a graph using a system of equations.
Answer:
(-1.307, 0.079), (1, 7)Step-by-step explanation:
Given equation:
7ˣ = 3x + 4To solve this, express each side of the equation as different function and find the intersection of graphs of those functions:
y = 7ˣy = 3x + 4As per graph, the solution is:
(-1.307, 0.079), (1, 7)Break into two parts
y=3x+4y=7^xNow graph and find the solution
what is 5+21 and 54+1
Answer:
26 and 55
Step-by-step explanation:
Answer: 5+21 = 26 and 54+1=55
Step-by-step explanation: You add 21 + 5, to get 26. same for the other.
The profits of two different manufacturing plants can be modeled as shown. Where x is the number of units produced at each plant.
Plant 1 : P1 (x) = -0.03x^2 + 25x - 1500
Plant 2 : P2 (x) = -0.02x^2 + 21x - 1700
Find polynomials representing the difference in profits between the companies. Find P1(x) - P2 (x) and P1 (x). Compare the two differences and draw conclusions. Show work and make a equation
P1(x) - P2(x) = -0.01x² + 4x + 200
This shows that P1(x) profit is less than P2(x).
P2(x) - P1x = 0.01x² - 4x - 200
This shows that P2(x) profit is more than P1(x).
What is a polynomial?Polynomial is an equation written as the sum of terms of the form kx^n.
where k and n are positive integers.
We have,
Plant 1:
P1 (x) = -0.03x² + 25x - 1500
Plant 2:
P2 (x) = -0.02x² + 21x - 1700
P1(x) - P2(x):
= -0.03x² + 25x - 1500 - (-0.02x² + 21x - 1700)
= -0.03x² + 25x - 1500 + 0.02x² - 21x + 1700
= -0.01x² + 4x + 200
For any x value, we will get a negative value.
This means,
P1(x) profit is less than P2(x).
P2(x) - P1x:
= -0.02x² + 21x - 1700 - (-0.03x² + 25x - 1500)
= -0.02x² + 21x - 1700 + 0.03x² - 25x + 1500
= 0.01x² - 4x - 200
For any x value, we will get a positive value.
This means,
P2(x) profit is more than P1(x).
Thus,
P1(x) - P2(x) shows that P1(x) profit is less than P2(x).
P2(x) - P1x shows that P2(x) profit is more than P1(x).
Learn more about polynomials here:
https://brainly.com/question/2284746
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Due soon helppp no links pls
Answer:
A = 28.26
C = 18.84
Step-by-step explanation:
A = [tex]\pi r^{2}[/tex]
C = 2[tex]\pi r[/tex]
A = 3.14 x 3 x 3 = 28.26
C = 2 x 3.14 x 3 = 18.84
Let me know if this helps!
Which of these four sets of side lengths will form a right triangle?
the radius of a circular musical drum is 70 centimeters. find its area (PLEASE DO NOT PUT ANY UNNECESSARY LINKS)
Answer:
439.6
Step-by-step explanation:
r times 2 (Because 70 is half of the...)=140 times pie or just round it to 3.14
So= 70 times 2 times 3.14
Use 3. 14 as an approximation for pie.
Which is the circumference of a plate with a radius of 5 cm?
Answer:
D
Step-by-step explanation:
25a9 ÷5a
??????????????????????????
Answer:
[tex]5a^8[/tex]
Step-by-step explanation:
[tex]\frac{25a^9}{5a}[/tex]
[tex]=5a^8[/tex]
Please help, i will give each 10 points if it’s correct :)
Answer:
1080
Step-by-step explanation:
Answer:
90 Cubic Inches
Step-by-step explanation:
I believe that the answer is 90 because Volume is calculated by doing Length x Width x Height (X is Multiplication) so if you multiply 10 x 6 x 1.5 which would end up with the end result of 90. If you find any fault in my answer please let me know. Thanks. Have a good day!
please help, i will give brainliest
Answer:
13. (E) all of the above 14. (E) the diagonals bisect the angles at the vertices
Step-by-step explanation:
............... help me please i don’t understand this
Answer:
x = 11
Step-by-step explanation:
Plz help me out it would be a life time
Answer:
a= 3 w- 1
Step-by-step explanation:
Answer:
A=12[tex]u^{2}[/tex]
Step-by-step explanation:
A=bh/2
A=(4)(6)/2
I NEED HELP ASAP!!!
**Ignore the theorem portion above. Answer the angle measure questions, rounding all answers to the nearest tenth***
Answer:
SVU = 90
TUV = 65
Step-by-step explanation:
Answer:
sorry if it's messy, I tried my best even though I'm not sure for ST.
An IceBerg has 1/9 of its volume above the water. If an IceBerg has 360 cubic meters below the water, how many cubic meters are above the water.
hello
i think so...
hope it helps
have a nice day
Help needed!
The photo attached is the question :)
Answer:
x = 90°
Step-by-step explanation:
This is very simple. Any triangle embedded in a circle with it's long side as the diameter is a right triangle. Thus, x = 90°.
(C) A bakery sells 9 types of sandwiches. Here are their calorie amounts: 562.568. 590. 599. 611.621. 623. 641, 938. Which measure should be used to summarize the data? A-Mean B-Median C-Mode
Answer:
611
Step-by-step explanation:
The mean is 632.9 which is a lot higher than 611, and is actually higher than the penultimate value 632, and if presented as a general single value, it may mislead customers into thinking that the sandwiches have a high calorific value. We don’t know how many sandwiches of different types there are, and there may only be a few with high values. So I would use the median 611 as a typical value for the number of calories.
use long division to rewrite the following expression. write your answer in the format of q(x) + r(x) / b(x)
/|\
|
(that's a fraction)
Hello!
Here we are given a long division question.
The first thing I would do is see how many times the term of the highest degree in the divisor could go into the term of the highest degree in the dividend, which would be 3.
Then, we could already see that the divisor's degree would be higher than that of the dividend, so the rest would go in the remainder over the divisor.
[tex]\frac{18x^2+5x+5}{6x^2-4x+1}[/tex]
[tex]3+\frac{17x+2}{6x^2-4x+1}[/tex]
Hope this helps!
Answer:
This is it trust me
Step-by-step explanation:
I just took it and got a 100
5-3x=2
What is x equals to?
Explain too please.
Helpp! Pls. I am desperate i will mark brainliest
the polynomial 3x+5 is divided by x+2 what is the quotient, pls be quick im taking a algebra progress check due in 25 min
Answer:
The quotient of the rational function is [tex]3 -\frac{1}{x+2}[/tex].
Step-by-step explanation:
We proceed to solve the expression by solely algebraic means below:
1) [tex]\frac{3\cdot x + 5}{x+2}[/tex] Given
2) [tex]\frac{(3\cdot x + 5) + 0}{x + 2}[/tex] Modulative property
3) [tex]\frac{(3\cdot x +5) + [1+(-1)]}{x+2}[/tex] Existence of additive inverse/Associative property
4) [tex]\frac{(3\cdot x + 6)+(-1)}{x+2}[/tex] Definition of addition/Commutative and associative properties
5) [tex]\frac{3\cdot (x+2)}{x+2} + \left(-\frac{1}{x+2} \right)[/tex] [tex]\frac{a+b}{c} = \frac{a}{c} + \frac{b}{c}[/tex]/ [tex]\frac{-a}{b} = \frac{a}{-b} = -\frac{a}{b}[/tex]/Distributive property
6) [tex]3 -\frac{1}{x+2}[/tex] Definition of division/Existence of multiplicative inverse/Modulative property/Definition of subtraction/Result
The quotient of the rational function is [tex]3 -\frac{1}{x+2}[/tex].
yesh plesse help me eith this im dyinggg
i really need help asap!!
Given:
A figure of a parallelogram.
The vertex angles are [tex](12b+8)^\circ,(5b+2)^\circ,2a^\circ[/tex].
To find:
The values of a and b.
Solution:
We know that the pairs of consecutive angles of a parallelogram are supplementary angles. It mean their sum is 180 degrees.
[tex](12b+8)^\circ+(5b+2)^\circ=180^\circ[/tex] (Supplementary angles)
[tex](17b+10)^\circ=180^\circ[/tex]
[tex]17b+10=180[/tex]
Subtract 10 from both sides.
[tex]17b=180-10[/tex]
[tex]17b=170[/tex]
Divide both sides by 17.
[tex]b=\dfrac{170}{17}[/tex]
[tex]b=10[/tex]
Now,
[tex](5b+2)^\circ=(5(10)+2)^\circ[/tex]
[tex](5b+2)^\circ=(50+2)^\circ[/tex]
[tex](5b+2)^\circ=52^\circ[/tex]
And,
[tex](5b+2)^\circ+2a^\circ=180^\circ[/tex] (Supplementary angles)
[tex]52^\circ+2a^\circ=180^\circ[/tex]
[tex]2a^\circ=180^\circ-52^\circ[/tex]
[tex]2a^\circ=128^\circ[/tex]
Divide both sides by 2.
[tex]a^\circ=\dfrac{128^\circ}{2}[/tex]
[tex]a^\circ=64^\circ[/tex]
[tex]a=64[/tex]
Therefore, the value of a is 64 and the value of b is 10.
Item 5
How many meters are in 8 kilometers?
80 meters
800 meters
8,000 meters
80,000 meters
12 + 1 1/3 = ___?
answer is supposed to be a mixed number??
thank you for helping
write an equation for the number 40 is 5 times as many as 8 please hurry
Answer:
5x8=40
Step-by-step explanation:
what is equivalent to 5,710,900 in scientific notation
Please help me out :D
Answer:
384 cubic inches
Step-by-step explanation:
For this problem, we simply need to apply the volume formula for a box. The volume is length times width times height.
We are given length = 12 inches
We are given width = 8 inches
We are given tall(height) = 4 inches
So let's Calculate the volume.
Volume = Length * Width * Height
Volume = 12 inches * 8 inches * 4 inches
Volume = 384 cubic inches
Hence, the volume of the box is 384 cubic inches.
Cheers.
PLEASE HELP I WILL GIVE BRAINLIEST
Suppose that z varies jointly with x and y. When x = 2, y =2 and z = 7
3) Write the equation that models the relationship
4) Find 7 when x - 4 and y 8
Express the following ratio as a fraction in simplest form.
$32 for 10 tickets
Answer:
$16/5tickets
Step-by-step explanation:
it be in simplest form mate.
Can someone please help my son on his work he broke both of his arms in a car crash please
Answer:
https://brainly.com/question/23106827?answeringSource=feedPublic%2FhomePage%2F4
Step-by-step explanation: