Answer:
Step-by-step explanation:
This is an exponential function of the form:
[tex]y=a(1-r)^x[/tex] where a is the initial value and (1 - r) is the growth rate (which in our case is a decay, actually!). Our initial value is 75000 and our rate of change in the population is 15% or .15. Filling in our model:
[tex]y=75000(1-.15)^x[/tex] and simplifying:
[tex]y=75000(.85)^x[/tex] This turns out to be a decay problem because the value inside the parenthesis is less than 100%.
x is our time, so the model is as stated above.
If <5 and <6 are complementary angles, and m<6=6", find m<5.
Answer:
∠ 5 = 84°
Step-by-step explanation:
Complementary angles sum to 90° , then
∠ 5 + ∠ 6 = 90° , that is
∠ 5 + 6° = 90° ( subtract 6° from both sides )
∠ 5 = 84°
If Olivia has 68,79, and 74 for his 3 tests, what must he get on his 4th test in order to have an 80 average?
The points (6, 9) and (5, 8) fall on a particular line. What is its equation in slope-intercept form?
Answer:
y=x+3
Step-by-step explanation:
Start with the slope equation [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
Since the first point is actually further along the x-axis that x-value becomes [tex]x_{2}[/tex] and its corresponding y-value is [tex]y_{2}[/tex]
[tex]\frac{9-8}{6-5}[/tex]=[tex]\frac{1}{1}[/tex]
The slope for the equation is just one so now find the y-intercept by rearranging the slope-intercept equation.
y=mx+b
y-mx=b
Now Substitute either point in to find b
9-1(6)=b
9-6=b
b=3
Your y-intercept is 3 so now we can write the slope-intercept equation for the two points:
y=x+3
Look at this graph:
АУ
100
90
80
70
60
50
40
30
20
10
0
10 20 30
40 50 60
70
80 90 100
What is the slope?
Answer:
The slope is 4 or 4/1.
Step-by-step explanation:
Since these are all in numbers evenly divisible by 10, we can go ahead and make this easier by dividing everything by 10. When we do this, we can see a point crossing an intersection at (3,1), or if you left it, (30, 10). Next, we can see another point crossing another intersection at (4,5) or (40, 50). Since we have two points that are easy for us to subtract, we can use the slope formula. The formula is as follows: y2-y1 / x2-x1. We can pick which of these we want to be 1 or 2, but whichever one we pick has to be 1 or two on both the top on the bottom. for example, I did (50-10) / (40-30). That gets us 40/10. If you divided by ten in the first place, you would get 4/1. From there, if you have the bigger answer, you need to simplify to simply 4. The shorter answer doesn't need to be simplified because we already simplified. I hope this helps!
Find the sum.
8 + (-5)
Answer: 3
Step-by-step explanation: 8 + (-5) is the same as saying 8 - 5 and 8-5 = 3
8 + (-5)
A negative and a positive make a negative therefore 8 + (-5) changes to
8 - 5
8 - 5 = 3
Answer: 3
Find the surface area of the cylinder. Please help
the length is 12in
the diameter is 5in
227.77in²
Hope this helped you- have a good day bro cya)
simplify 5 to the power of three over 5 to the power of seven
Answer:
1/625, or 0.0016 is the answer.
Kate's Pattern
Andy's Pattern
Kate and Andy made the following
patterns.
X
у
Х
у
1
2
1
4
Which statement is true?
2
4
2
8
3
6
3
12
4
8
4
16
) Kate's y-values increase at 3 times the rate of Andy's y-values.
® Kate's y-values increase at 2 times the rate of Andy's y-values.
© Andy's y-values increase at 2 times the rate of date's y-values.
D Andy's y-values increase at 3 times the rate of Kate's y-values.
Answer:
Answer is C
Andy's Y value increases 2 times more
Answer:
B)
Step-by-step explanation:
If you look at Kate's y column, you will see that her pattern goes by 2,4,6 and 8.
It increases by 2.
At the same rate, Andy's increases by 4.
Therefore, B would be the correct answer.
help with this question please
Answer:
-32
Step-by-step explanation:
if we multiply - 2 and -6 it becomes positive so it will be 12.
-2 multiply 22 will be -44
12 - 44 is -32.
answer : -32
you distribute so you do -2 times -6 which is 12. then -2 times 22 which is -44.
you end up with 12 - 44, which equals -32.
I need help I don’t get it
Tina babysits children in her neighborhood. When Tina is asked her rate, she tells her neighbors that she charges $15 for the first hour and $8 for each hour after. If Tina's neighbor asks Tina to babysits for 4 hours, how much will Tina earn? Write an equation to model and solve the problem. Write the answer as an ordered pair and explain the meaning of the ordered pair.
The amount charged is an illustration of a linear equation.
Tina charges $39 for 4 hours
The given parameters are:
[tex]Base = 15[/tex] --- amount charged for the first hour
[tex]Rate = 8[/tex] --- amount charged for the extra hours
If Tina babysits for 4 hours, it means that:
She will charge $15 for the first hour$8 for the extra 3 hoursSo, the total charges is:
[tex]Total = 15 + 3 \times 8[/tex]
[tex]Total = 15 + 24[/tex]
[tex]Total = 39[/tex]
The ordered pair is (4,39)
It means that:
She charges $39 for 4 hours
Read more about linear functions at:
https://brainly.com/question/20286983
A rock band made a concert tour of 13
cities. They traveled an average of
1,970 miles per week for 6 weeks. .
How far did they travel altogether?
Answer:
11820
Step-by-step explanation:
https://msquaredmathschool.files.wordpress.com/2017/04/block2key.pdf
f(x) =3x/x+2
Evaluate.
F(v) = ?
Explain..
I will give Brainliest!
Answer:
5
Step-by-step explanation:
f(v) means your x value is v so substitute X=v in f(x)
[tex]f(v) = 3 \frac{v}{v} + 2 \\ 3 + 2 \\ 5[/tex]
5/11 as a ratio 4 decimal places
Help me! It’s a short answer question!
12. Find the values of x, y, and z. The diagram is not to scale. (3 points)
360
130
630
Answer:
x = 81 degrees
<z = 99 degrees
<y = 68 degrees
Step-by-step explanation:
<x = 180 - 36 - 63 = 81 degrees
<x + <z = 180 degrees
81 + <z = 180
<z = 180 - 81
<z = 99 degrees
<y = 180 - 99 - 13
<y = 68 degrees
he recipe makes enough stew for 6 people, and the ingredients cost $9.75. How much would it cost to serve 24 people?
A student solved the problem using the proportion StartFraction 6 over 9.75 EndFraction = StartFraction c over 24 EndFraction Explain the error in this proportion.
Answer:
24 times 9.75 = $234
Step-by-step explanation:
Answer:
It would cost $39 to serve 24 people
Step-by-step explanation:
If the recipe makes enough stew for 6 people, and the ingredients cost $9.75, then for 24 people it will cost $x. You can write this statement as
6 people - $9.75,
24 people - $x.
Or as proportion,
6/24=9.75/x
Find x:
6·× =9.75·24,
x=9.75·24/6=9.75·4=39
Answer: It would cost $39 to serve 24 people
Which explains the number of decimal places in the product 0 . 42 × 3 . 8 × 10 . 51 ? A. The greatest number of decimal places in any of the factors is 1. So, the product will have 1 decimal place. B. The greatest number of decimal places in any of the factors is 2. So, the product will have 2 decimal places. C. There are a total of 4 decimal places in the factors. So, the product will have 4 decimal places. D. There are a total of 5 decimal places in the factors. So, the product will have 5 decimal places.
Answer:
D
Step-by-step explanation:
if you place the decimals ontop of each other like this
0.42
3.8
10.51
and count the numbers behind the decimal of each decimal which is
4, 2, 8, 3, 1
meaning that your decimal place would be 5 places to the left of your answer when you multiply
Answer:
D
Step-by-step explanation:
here are a total of 5 decimal places in the factors. So, the product will have 5 decimal places.
Solve equations with variables on each side
3w+6=4w
a+18=7a
8c=5c+21
Answer:
a) w=6
b) a=3
c) c=7
Step-by-step explanation:
[tex]3w+6=4w[/tex]
[tex]\mathrm{Subtract\:}6\mathrm{\:from\:both\:sides}[/tex]
[tex]3w+6-6=4w-6[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]3w=4w-6[/tex]
[tex]\mathrm{Subtract\:}4w\mathrm{\:from\:both\:sides}[/tex]
[tex]3w-4w=4w-6-4w[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]-w=-6[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}-1[/tex]
[tex]\frac{-w}{-1}=\frac{-6}{-1}[/tex]
[tex]w=6[/tex]
___________________________________________
[tex]a+18=7a[/tex]
[tex]\mathrm{Subtract\:}18\mathrm{\:from\:both\:sides}[/tex]
[tex]a+18-18=7a-18[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]a=7a-18[/tex]
[tex]\mathrm{Subtract\:}7a\mathrm{\:from\:both\:sides}[/tex]
[tex]a-7a=7a-18-7a[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]-6a=-18[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}-6[/tex]
[tex]\frac{-6a}{-6}=\frac{-18}{-6}[/tex]
[tex]a=3[/tex]
Question 17
5 pts
What inequality is shown on the graph?
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
23
O2<3
O2 > 3
O3 <3
Answer:
[tex]x \geqslant 3 [/tex]
I'm trying to get to an 100 please do not get me wrong..
Answer:
Its a parallelogram.
Step-by-step explanation: Hope it helps. :)
What is 20x8 divided by 3-5
Answer:
-80
Step-by-step explanation:
→ Complete the multiplication
20 × 8 = 160
→ Complete the take away
3 - 5 = -2
→ Divide the two answers from each other
160 ÷ -2 = -80
A team of explorers on an expedition was interrupted by bad weather on 20% of the days. If the weather was bad for 45 days, what was the total number of days the team was on its mission?
Answer:
a total of 9 days
Step-by-step explanation:
20% of 45 is 9
answer
=9days
step by step explanation
20% is always over 100,so you are to do 20 over a hundred of 45 days....since 45 can't divide 100 do 20
[tex] \times [/tex]
45 divide by one hundred and the final answer will be 9
La gran pirámide de Guiza se terminó de construir alrededor del año 2570 antes de nuestra era ¿Cuántos milenios han transcurrido desde entonces?
Answer: La Gran Pirámide de Giza se terminó en 2490 a. C.
Tiempo necesario para construir la Gran Pirámide de Giza: 2550 a 2490 a. C.
Chicken Itza se construyó alrededor del año 600 d.C.
Step-by-step explanation:
Jacob and his team start at the 45 yard line but they get a flag and have to go back 15 yards. The next play Jacob ran the ball 12 yards before getting tackled. How many yards does Jacob's team have to go to get to the touchdown zone?
what is the GCM of 9 and 7
Answer: See explanation
Step-by-step explanation:
Do you mean the greatest common factor (GCF), or the lowest common multiple (LCM).
If you mean GCF, then it is 1 because 7 is a prime number and has two facotrs (1 and itself) and since 9 isn’t divisible by 7, the GCF must be 1.
If you mean the LCM, the answer is 63. Using prime factorisation, we find the lowest prime factor of both numbers:
9 = 3^3
7= 7^1
Then, we multiply these together to give 63.
You cannot have a GCM, because you can’t find a greatest common multiple as numbers go on forever.
I hope this helps!
Please help!!!! !!!!!!
Answer:The area is 256
Step-by-step explanation:
4 is the length side and everyone know a sq has the same length side so list 4 to the power of 4
Factorize 3x² + 7xy - 6y².
Evaluate the expression in (a) above if x = 4 and y = 3.
Please help. Thanks.
Answer:
41
Step-by-step explanation:
Evaluate the expression for the given values of the variables.(n + 5)^2 for n = −7
When n = −7, the expression is equal to...
4
Step-by-step explanation:
(n + 5)² for n = -7
= (-7 + 5)²
= (-2)²
= 4
2(3w-6)=5w+8
asap plz
Answer:
w = 20
Step-by-step explanation:
2 (3w - 6) = 5w + 8
distribute the 2
6w - 12 = 5w + 8
subtract 5w from both sides
w - 12 = 8
add 12 to both sides
w = 20
Answer:
The value of w is 20.
Step-by-step explanation:
Solution :
[tex]{\longmapsto{\tt{2(3w - 6)=5w + 8}}}[/tex]
[tex]{\longmapsto{\tt{(3w \times 2 )- (6 \times 2)=5w + 8}}}[/tex]
[tex]{\longmapsto{\tt{(6w)- (12)=5w + 8}}}[/tex]
[tex]{\longmapsto{\tt{6w - 12=5w + 8}}}[/tex]
[tex]{\longmapsto{\tt{6w - 5w = 8 + 12}}}[/tex]
[tex]{\longmapsto{\tt{w = 20}}}[/tex]
Hence, the value of w is 20.
[tex]\rule{300}{2.5}[/tex]
3. You drove 75 miles/hour for 8 hours. How far did you travel?
Answer:
800
Step-by-step explanation: 75 x 8