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1/2
Related Questions
this one's tricky and i need some help 20 points
Answers
Answer:
It's b, 54, because that makes the sum.
A conservationist determines that a particular beach is eroding at a rate of 1.1% each year. when writing an explicit formula to represent the amount of beach remaining each year, which value should she use as the common ratio? 0.011 0.089 0.989 1.011
Answers
Using exponential function concepts, it is found that the common ratio would be given by 0.989.
What is an exponential function?A decaying exponential function is modeled by:
[tex]A(t) = A(0)(1 - r)^t[/tex]
In which:
A(0) is the initial value.r is the decay rate, as a decimal.1 - r, also as a decimal, is the common ratio.In this problem, the amount decays 1.1% a year, hence:
r = 0.011.1 - r = 1 - 0.011 = 0.989.The common ratio would be given by 0.989.
More can be learned about exponential function concepts at https://brainly.com/question/25537936
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Answer: C
Step-by-step explanation:
Trust
What is the mean of the data on the dot plot? ( Round to the nearest hundredth)
Answers
Answer: 100
Step-by-step explanation:
A population of bees is decreasing. The population in a particular region this year is 1250. After year 1, it is estimated that the population will be 1000. After 2 years, it is estimated that the population will be 800.
How many years will it take for the bee population to be below 100?
Answers
Answer:
5 years
Step-by-step explanation:
1250 => 250 1000 => 300 800 => 350 450. => 400 50.
pls help i will give brainliest and 5 stars
Answers
Answer:
See attached diagram
Step-by-step explanation:
See attached picture....I assumed -3% was really just -3
What is the first step when rewriting y = 3x2 + 9x – 18 in the form y = a(x – h)2 + k?
3 must be factored from 3x2 + 9x
x must be factored from 3x2 + 9x
9 must be factored from 9x – 18
3 must be factored from 3x2 – 18
Answers
Answer:
(a) 3 must be factored from 3x^2 + 9x
Step-by-step explanation:
The first step when rewriting a quadratic from standard form to vertex form is to factor out the leading coefficient from the variable terms.
__
y = 3x^2 +9x -18 . . . . . . given
y = 3(x^2 +3x) -18 . . . . . leading coefficient factored out
y = 3(x^2 +3x +2.25) -18 -3(2.25) . . . . . complete the square
y = 3(x +1.5)^2 -24.75 . . . . . simplify to vertex form
Answer:
3rd one
Step-by-step explanation: I am pretty sure becuase the other ones don't sound right hope this helps :)
If 10% of a number is 16, find 5% of that number.
Answers
Answer:
5% = 8
Step-by-step explanation:
Since 10% of a number is 16, multiply that by 10 to get 160. In order to get 5%, divide 10% (16) by 2 to get 8, which is 5% of 160.
Someone help me I send a question on my profile
And this my question
Answers
Step-by-step explanation:
A=X AB=ZX
B=Z. AC=XY
C=Y. BC=YZ
Traingle BCA = Traingle ZYX
A shoe box is covered with packing paper before being shipped. The paper costs $0.02 per square inch. How much will it cost to cover three shoe boxes?
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Which of these equations shows the correct relationship between x and y?
X+y = 90
x + y = 180
x=y
x + 50 = y
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they are adjacent angles
x=50
y=130
302.1 in a fraction form
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Answer:
302 1/10 is our fraction form more known to be a mixed number.
Step-by-step explanation:
Fraction form from decimal is to keep our 302 and make .1 a fraction.
This is because we already have a base/whole number and just need a fraction to make this decimal an improper fraction. 0.1 is equivalent to 1/10 because in order to get to 0.1 you need to move the decimal point 1 digit to the right. You could also do 1 divided by 10.
302 1/10 is our fraction form more known to be a mixed number.
PLEASE HELP ASAP WILL GIVE BRAINLIEST AND 5 STARS
Answers
17% of students in a class have brown hair. If 6 students are chosen at random, what is the probability that exactly 3 have brown hair? (Write your answer as a percentage rounded to the nearest tenth.)
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Answer:
6.8%
Step-by-step explanation:
the question has no information about class size (no. of student in class)
assume no. of student is infinite
P(3brown out of 6) = 6C3 * P(brown)^3 * P(not brown)^3
= 20 * 0.004913 * 0.695789
= 0.06837
The hcf of 182 and x is 26 and the l.c.m of 182 and x is 1092 determine the value of x
Answers
The value of x such that the hcf is 26 and the l.c.m is 1092 is 156
How to determine the value of x?The numbers are given as:
182 and x
The HCF and LCM are given as:
HCF = 26
LCM = 1092
As a general rule;
The product of LCM and HCF of x and y equals the product of x and y
So, we have:
182 * x = 26 * 1092
Divide both sides by 182
x = 156
Hence, the value of x is 156
Read more about HCF and LCM at:
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 A submarine is at an elevation -100 feet( 100 feet below sea level) let’s compare the elevation of these for people to that of the submarine .
Answers
What percentage is 650 m to 4 km.
Answers
Answer: 16.25%
Step-by-step explanation:
Change
650m = 0.65 km
Convert into percentage 0.65/ 4 x 100 = 16.25
Need help please hurry.IF ABC~DEF find the value of x and y.
Answers
ANSWER :
∠D = y = 65 and ∠F = x = 45
Step-by-step explanation:
Guys, I beg you! How do you do these factoring quadratic equations!
Which is a solution to (x − 2)(x + 10) = 13
Answers
======================================================
Explanation:
There are at least three ways to solve this.
----------------------------------------------
Method 1:
We could graph y = (x-2)(x+10) using a tool like Desmos. Graph y = 13 as well which is a horizontal line.
Check out the screenshot shown below.
The parabola in red and the horizontal line in blue intersect at the locations (-11, 13) and (3, 13)
We only focus on the x coordinates of the intersection points.
Therefore, the two solutions are x = -11 and x = 3
The order of the solutions doesn't matter.
----------------------------------------------
Method 2:
Expand things out and get everything to one side
(x-2)(x+10) = 13
x^2 + 10x - 2x - 20 = 13
x^2 + 8x - 20 - 13 = 0
x^2 + 8x - 33 = 0
From here we can use the quadratic formula
[tex]x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-8\pm\sqrt{(8)^2-4(1)(-33)}}{2(1)}\\\\x = \frac{-8\pm\sqrt{64+132}}{2}\\\\x = \frac{-8\pm\sqrt{196}}{2}\\\\x = \frac{-8\pm14}{2}\\\\x = \frac{-8+14}{2} \ \text{ or } \ x = \frac{-8-14}{2}\\\\x = \frac{6}{2} \ \text{ or } \ x = \frac{-22}{2}\\\\x = 3 \ \text{ or } \ x = -11\\\\[/tex]
----------------------------------------------
Method 3:
Instead of using the quadratic formula, we could factor.
To factor x^2+8x-33, we need to find two numbers that
Multiply to -33Add to 8Through trial and error, you should get 11 and -3
11 times -3 = -3311 plus -3 = 8So,
x^2+8x-33 = 0
(x+11)(x-3) = 0
x+11 = 0 or x-3 = 0
x = -11 or x = 3
which set of ordered pairs represents a function
Answers
Answer:
A is correct{(-4,4),(-2,4),(1,4),(5,4)}
The table shows the amount of money in your bank account over a period of 5
5
weeks. You plan to keep saving at the same rate until you have $800
$
800
in the account. Which equation could you use to find the number of weeks,
n
, it would take to reach your goal?
Math item stem image
CLEAR CHECK
100·=800
100
·
n
=
800
35·+100=800
35
·
n
+
100
=
800
100·+35=800
100
·
n
+
35
=
800
35·+800=100
Answers
The linear function that you could use to find the number of weeks it would take to reach your goal is:
35n + 100 = 800.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.From the table, we have that:
The intercept is the initial balance of 100.The slope is the rate of change of 35.Hence the balance after n weeks is given by:
B(n) = 100 + 35n.
You will have $800 when B(n) = 800, hence the equation is:
35n + 100 = 800.
More can be learned about linear functions at https://brainly.com/question/24808124
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Select the correct answer.
Consider the function f(x) = 3x and the function g, which is shown below.
g(s) ft
= () – 2 = 3+ – 2
How will the graph of g differ from the graph of f?
OA
The graph of g is the graph of fshifted 2 units up.
B.
The graph of g is the graph of fshifted 2 units to the left.
C.
The graph of g is the graph of fshifted 2 units to the right.
D.
The graph of g is the graph of fshifted 2 units down.
Answers
Answer:
D. The graph of g is the graph of f shifted 2 units down.
Step-by-step explanation:
Transformations
f(x) - a : vertical shift of "a" units down
f(x) + a : vertical shift of "a" units up
f(x - a) : horizontal shift of "a" units to the right
f(x + a) : horizontal shift of "a" units to the left
If g(x) = f(x) - 2
Then g(x) is f(x) shifted 2 units down.
If a quadrilateral is inscribed in a circle then opposite angles are:.
Answers
Answer:
Step-by-step explanation:
Theorem
An inscribed quadrilateral is one where all four angles touch the circumference of the circle containing those 4 angles.
The opposite angles can be shown to be supplementary (that is equal to 180 degrees)
Answer: Supplementary
Calculate the price of melons if melons cost $2.35 a pound and the melon on the scale weighs 2.2 pounds, making sure to round your answer to the nearest cent.
Answers
Please mark brain gl bye
root 8-3 root 32 + 4 root 50
Answers
Answer:
[tex]10\sqrt{2}[/tex]
Step-by-step explanation:
[tex]\sqrt{8} -3\sqrt{32} +4\sqrt{50}[/tex]
We can try to simplify first.
[tex]2\sqrt{2}-12\sqrt{2} +20\sqrt{2}[/tex]
Now we can combine the like terms:
[tex]= 10\sqrt{2}[/tex]
hope this helped! :)
help i need the answer
Answers
Answer:
Step-by-step explanation:
A cube has a surface area of 181.5sq. In. What is the length of the sides
Answers
Answer:
Answer = 5.5
Step-by-step explanation:
The formula for finding the surface area of a cube is SA = 6(s^2) where s = sides. Since we know the surface area we plug it in for SA. So,
181.5 = 6*s^2
Now we divide 6 by both sides to get
30.25 = s^2
Now we have to find the square root of both sides to get
5.5 = s
Hope that helps! :)
Which mass is least 1500 mg, 13.2 kg, 30000 cg, 7428g
Answers
Answer:
1500 mg is the least mass
Step-by-step explanation:
Lets convert them all to the same mass unit,
1500 mg to grams: 1500 mg / 1000 = 1.5 grams
13.2 kg to grams: 13.2 kg x 1000 = 13,200 grams
30000 cg to grams: 30,000 cg / 100 = 300 grams
7428g no conversion needed!
1.5 grams, 13,200 grams, 300 grams, 7,428 grams
1.5 is the smallest number
Jamal is painting his room. He determines that 1/2 gallon container of paint will cover 1/6 of a wall. How many gallons of paint are needed to cover an entire wall (assuming there are no windows or doors)? Enter your answer in the box below, do NOT include units.
Answers
Answer:
3 gallons
Step-by-step explanation:
1/6+1/6=2/6=1/3
1/3x3=3/3=1
What is the volume of this cone?
Answers
Answer:
201.06193
Step-by-step explanation:
OMG PLS HELP ME!!!!! WILL GIVE BRAINLIEST
Answers
Step-by-step explanation:
I made the added things green so you can understand better what I did to get the right answer. If you have any questions you may text me
Answer:
1. 62 ( 8X8 ) -2
2. 13 ( 10 + 3)
3. 6 ( 4 + 2 )
4. 18 (22 - 4)
5. 3 ( 6/2)
6. 14 (7+7)
Step-by-step explanation:
Next question pls !
It just plain simple add , multiplication , division and subtraction
Pls Do what as you written ! Mark me as Brainly for 100% correct !! Alr helped
