The investment that increase by a factor of 5 in 20 years, has a growth of 8.38% per year.
What is an exponential function?An exponential function is in the form:
y = abˣ
Where y,x are variables, a is the initial value of y and b is the multiplication factor.
Given that an investment increasing in value exponentially, to increase by a factor of 5 in 20 years. Hence:
Factor per year = [tex]5 ^\frac{`1}{20}=1.0838[/tex]
Growth per year = 1.0838 - 1 = 0.0838 = 8.38%
The investment that increase by a factor of 5 in 20 years, has a growth of 8.38% per year.
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Suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. Together, you send a total of about 26 messages per day. About how many text messages does she send a day? Write an equation and solve for the unknown value, show your work
Answer:
she sends 14 texts
Step-by-step explanation:
12 + x = 26
------------------
-12 -12
x = 26 - 12
x = 14
Alejandro started the 10-kilometer race at 8:22 am. He finished the race
at 9:09 am. How long did it take him to run the race?
Answer: 47 minutes
Step-by-step explanation:
First substract 22 from 60 to see how much it took to get till 9 and then add the remaining 9 minutes
Answer:
47 min
Step-by-step explanation:
22 from 8:22 + 47 min = 8:69
69 simplified = 1 hr 9 mins
9:09
pls mark brainliest if I'm correct
Every train carriage has four doors. How many doors will the train have if there are 10 carriages?
Answer:
40 doors.
Step-by-step explanation:
1 train carriage = 4 doors
10 train carriage = 4 x 10 = 40 doors
What is the length of diagonal RQ?
9.3 in
22 in
18.6 in
11 in
Assuming the entire quadrilateral is a parallelogram, we can say that using the property of diagonals;
The diagonals of a parallelogram bisect each other, meaning that RQ is divided into two equal parts.
If half of RQ is 9.3 then,
RQ=2×9.3=18.6 in
That's your answer RQ=18.6 in
Answer:
the answer is C.18.6
Step-by-step explanation: i took the quiz and got it right
what is the area of y°
Answer: Below
Step-by-step explanation:
First, we start with x. We see the x is opposite of 30, so x is 30.
x + y + y = 180, since they lay on a straight angle.
180 - 30 = 150
since we still have 2 y's left:
2y = 150
y = 75
c Sections
Help Resources
Find the vertex and focus of the
parabola:
y2 +12y - 4x + 48 = 0
Vertex = ([?], [?])
Focus = ([?], [?])
Enter
Please help me which shape is it.?
Answer:
Equilateral
Step-by-step explanation:
It is Equilateral because all sides have the same number of lines(1) telling us that all sides are the same :)
Have a wonderful day!!
Please rate and mark brainliest!!
Find the Area of the trapezoids
Hey there!
A = ½ (a + b) h,
a =8b = 16h =14⇒ A = ½(8+16)14
⇒ A = ½(24)14
⇒ A = (12)(14)
⇒ A = 168
Therefore, Area of trapezoid is 168 sq. un
Check the picture below.
[tex]\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ h=14\\ a=16\\ b=8 \end{cases}\implies \begin{array}{llll} A=\cfrac{14(16+8)}{2}\implies A=\cfrac{14(24)}{2} \\\\\\ A=7(24)\implies A=168 \end{array}[/tex]
PLEASE HELP!!!
Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form.
Answer:
y=2x+1
Step-by-step explanation:
The point-slope form is (y-y1)=m(x-x1), with x1 and y1 being the coordinates from ordered pair, and m being the slope. You can plug all of those values into the original equation:
(y-y1)=m(x-x1)
y-3=2(x-1)
y-3=2x-2
y=2x+1
the triangles are similar pls help me!!!! marking brainliest!!!!!
(C) 2a+a²b-2b-ab. send me fast
Answer:
what do you want me to do with that
factor?
Answer this, please!
Help!!!
Answer:
25
Step-by-step explanation:
complementary angles is when their sum = 90 so
30 + 2x + 10 = 90
2x = 90 - 40
2x = 50
X = 25
Answer:
x = 25
Step-by-step explanation:
1. Due to the fact that Angle F and angle G are complementary, 2x + 10 + 30 = 90.
2. Solve this equation: 2x + 10 + 30 = 90
Add 10 and 30
2x + 10 + 30 = 90
2x + 40 = 90
3. Subtract 40 from 90
2x + 40 = 90
2x = 90 - 40
2x = 50
4. Divide 2 from 50
x = 50/2
x = 25
Please help I will give brainliest.
Answer: B. (2,0) and ([tex]-\frac{1}{2}[/tex], 0)
Step-by-step explanation: Try drawing a graph of it to see where the curve intersects the x-axis, or simplify it to [tex]x^2-3x-2=0[/tex], and solve for the x values.
What introduction proof is FH=FG=GH
Answer:
What grade are you in I might know it
Carlos was having a home built. The blueprints are shown below. The scale for the blueprints to the actual house is 2 inches to 7 feet.
Part A What is the actual width of the entire building
Part B What is the length of the entire building
The actual width of the entire building is 28 feet and the length of the entire building is 84 feet.
Given that, the scale for the blueprints to the actual house is 2 inches to 7 feet.
What is the scale factor?The scale factor is defined as the number or the conversion factor which is used to change the size of a figure without changing its shape. It is used to increase or decrease the size of an object. The scale factor can be calculated if the dimensions of the original figure and the dimensions of the dilated (increased or decreased) figure are known.
Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape.
Now, width = 8 inches in feet is 4 × 7 =28 feet
Length = 14+10 =24 inches in feet is 12 × 7 = 84 feet
Therefore, the actual width of the entire building is 28 feet and the length of the entire building is 84 feet.
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Estimate the answer to:
Answer:
a. 3.76b. 13,102.974Step-by-step explanation:
a. (1.7 + 4.2)² = 34.81 = 3.76
2.1³ 9.261
b. (672 - 134)² = 289,444 = 13,102.94
4.7² 22.090
The number of students in each class is shown on the line plot.
Find the median number of students.
Answer:
Your answer is 24.
Step-by-step explanation:
The data set is 22,23,23,23,24,24,25,26,26,26,28
The median of this set is 24
The mean is 24.54
The mode is 23,26
The range is 6
Juanita’s boss told her that once she has worked with the company for 10 years, her salary will be increased to 3 times what she makes now plus $2,000. If s represents her original salary, which expression represents what her salary will be after 10 years at the company? One-third s 2,000 StartFraction 3 Over s EndFraction 2,000 3 s 2,000 2,000 minus 3 s.
Salary after 10 years at the company will be 3s+2000.
It is given that original salary =s
What is the multiplication of a variable x to constant p?The multiplication of a variable x to constant p is px.
Salary after 10 years as per promise = thrice of original salary +$2000
Salary after 10 years = 3*s + 2000
Salary after 10 years = 3s+2000
Therefore, salary after 10 years at the company will be 3s+2000
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8 nickels 5 quarters what is the ratio of coins to quarters
Answer:
13:5
Step-by-step explanation:
13 coins and 5 quartres
Solve the quadratic equation in standard form: f(x)=3x^2-6x-4
Answer: Rewrite in vertex form and use this form to find the vertex
(
h
,
k
)
.
(
1
,
−
1
)
Rewrite in vertex form and use this form to find the vertex
(
h
,
k
)
.
(
1
,
−
1
)
Step-by-step explanation:
Explain how to solve the equation. 49= x/7
Part 1
Select the correct choice below and fill in the answer box within your choice.
(Type a whole number.)
A . Subtract _from both sides.
B . Multiply both sides by _
C . Add_ to both sides.
D . Divide both sides by _
[tex]49 = \frac{x}{7} [/tex]
Multiply both sides of the equation by 7
[tex]49 \times 7 = \frac{x}{ \cancel7} \times \cancel7[/tex]
[tex]343 = x[/tex]
[tex]x = 343[/tex]
[tex]\green{ \rule{300pt}{3pt}}[/tex]
Option B is the correct choice and the number that comes in the blank is 7...~Five friends ordered pizza for dinner. The pizza cost $30.There was also tax of $5.75. How much would each person pay if they split the total cost equally?
Answer:
They would each pay $7.15
How to write 40% in fraction in simplest form
Solve for n.
8 = 2(n + 1)
Answer:
n = 3
Step-by-step explanation:
8 = 2(n + 1)
8 = 2n + 2
6 = 2n
n = 3
There are 10 rulers, 6 erasers, and 8 red pens. Write the ratio for earaser to rulers in simplest
Answer:
The answer to the question is 5:3:4
can anyone solve this question?? plz help me tommorrow is my exam
Answer:
Loss=Rs 80
Loss%=4%
Step-by-step explanation:
Cost price of trousers for Ujeli=Rs2000
Marked price for trousers =Rs 2400
Reduction of MP(take it as discounted) =20%
Selling price=MP-20%of MP=2400 - 20/100 * 2400 = 2400 - 480 = Rs 1920
Loss amount =CP - SP = 2000 - 1920 = Rs 80
Loss% =loss amt/CP *100 =80 / 2000 *100 =4%
Hope this helps!!
Please solve this I'll give you 25 points
Answer:
its linear (i know how to draw the graph but i cant show you here, just make umm an x axis and y axis from 1 to 30 ) (also i feel like theres another way to know if its linear but this is how i would do it!)
Step-by-step explanation:
to see if its linear ummm we first have to find the slope, the equation for the slope is
y2 - y1 / x2 - x1
lets use the points (2, 8) and (3, 12)
12 - 8/ 3 -2
4 / 1
4
y = 4x + b
now to find the y-intercept lets input a point we did not use yet
(5, 20)
20 = 4(5) + b
20 = 20 + b
b = 0
y = 4x
now we check if its linear with the points (6, 24) and (3.5, 14) sooo
24 = 4(6) ?
24 = 24
14 = 4(3.5) ?
14 = 14
so yes it is a linear graph
Which number line shows the solution to the inequality
-3x - 5 < -2?
Answer:
xStep-by-step explanation:
-3x-5<-2-3x<-2+5 -3x<3 divide by -3 both sidex<-1 answer.Mary has been hired as a receptionist. She is paid a flat rate of $150 each week and earns an additional
$12.50 for every hour that she works. If her goal is to make $575 in one week, how many hours must Mary
work?
Answer:
34
Step-by-step explanation:
$575-$150= $425
So $425 is how much she needs bc she already gets $150 each week so subtract it from the $575. then do
$425/$12.50=(hours)34) so she needs to work 34 hours this week to get 575$
Katelyn sells cars at a used car dealer on commission. The car lot pays a 18% commission when the profit on a car is under $400, 22% when the profit is at least $400 and less than $1,000, and 24% when the profit is $1,000 or more. How much will she receive if she sold $800 in profits?
Answer:
She will receive 22% commission
Step-by-step explanation:
18% commission when the profit on a car is under $400
22% when the profit is at least $400 and less than $1,000
24% when the profit is $1,000 or more.
How much will she receive if she sold $800 in profits?
She will receive 22% commission
$800 profits is greater than $400 but less than $1000