Answer:
22
Step-by-step explanation:
4+18 = 22
Please solve it quickly! thanks!
Answer:
2a - 8
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
(a - 3) + (a - 5)
Step 2: Simplify
Combine like terms (a): 2a - 3 - 5Combine like terms (Z): 2a - 8PLEASE HELP MEEEEEE I REALLY NEED HELP WITH THISSSSSSSSS QUESTION PLEASE I NEEEEDDD HELPPPP IM BEGGGING YOUUUU
Answer:
volume of figure = 74 cm³
can every one just ask questents and not commet s brainly is for questions!!!!!!!!!!!!!!!!!!
Answer:
Calm down jamal. dont pull out the nine
Step-by-step explanation:
The length of a beige is 500 miles if 1 inch represent 25 miles what is the length of the bridge ?
Answer:
20 inch
Step-by-step explanation:
500 divided by 25 is 20.
In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If 2/7 of
the drink is apple juice and 1/2 is orange juice then write the ratio of cranberry juice to apple
juice to orange juice in its simplest form,
Answer:
3 : 4 : 7
Step-by-step explanation:
apple juice - 2/7 = 4/14
orange juice - 1/2 = 7/14
AJ + OJ = 11/14
this means that 3/14 of the punch is cranberry juice.
cranberry : apple : orange
3 : 4 : 7
1/3 + a =5/4
what does a equal
Answer:
the answer to this is a = 11/12
Step-by-step explanation:
Can anyone please helping me out with question 3 it’s my last question and I can’t get it!!!
Answer:
x=1, y= -1
Step-by-step explanation:
x = 2y +3
3x -y = 4
Use the substitution method because we have x= something in terms of y
3 (2y+3) -y = 4
6y + 9 -y = 4 subtract 9 from both sides
6y -y = 4-9 combine like terms
5y = -5 divide both sides by 5
y = -1
x= 2*(-1) +3 = -2+3 = 1
Help PLZ I am failling math
Points on number line
Answer:
-22 or -2
Step-by-step explanation:
Understanding size
If RS is 10, it does not matter where they are. As long as they are 10 units apart, it works.
However, we already know S lies at -12 so we only have 2 choices for R.
Check the picture I uploaded for better understanding.
This is because RS doesn't mean that R has to be before S. It just means that they are a segment. This means that RS and SR are the same segments.
En una baraja de 52 cartas, donde hay 13 cartas de trébol. 13 cartas de
corazones, 13 cartas de espadas y 13 cartas de rombos. Si sacamos dos
cartas con reemplazo. ¿Cuál es la probabilidad de que sean de
corazones?
Brian is skateboarding at 8 kilometers per hour. How long will it take Brian to travel 12 kilometers?
Answer:
An hour and 30 minutes.
Step-by-step explanation:
In one hour, they travel 8 kilometers. They then have 4 kilometers left. 4 is half. of 8, so I would possibly take half the time it would to travel 8, making it 30 minutes for the other 4 kilometers.
Sebastian's friend gives him 4 special-edition baseball cards to start his own collection. Sebastian then buys 6 new baseball cards for his collection every month.
If x is the number of months, what is the linear function, f (x), that represents the total number of baseball cards in Sebastian's collection as a function of the number of months?
A: f(x) = 4x
B: f(x) = 6x
C: f(x) = 4x + 6
D: f(x) = 6x + 4
Answer:
D
Step-by-step explanation:
its 6x + the 4 he gave him
Answer:D
Step-by-step explanation:
took the test
How do you find lower class limit
Answer:
Its the upper limit and lower limit of the class
find two numbers a and b for which a+2b=100 and the product ab is maximized
While doing an article on the high cost of college education, a reporter took a random sample of the cost of new textbooks for a semester. Her sample consisted of 20 students with a mean of $212.45 and a standard deviation of $38.92. A. Find the 99% confidence interval estimate of the true mean textbook cost for the semester based on her sample. Assume the cost of new textbooks is normally distributed.B. Based on part a, is an average cost of $200 for a semester a likely value for the population mean? Why or why not?
Answer:
The answer is below
Step-by-step explanation:
Given that:
mean (μ) = $212.45, standard deviation (σ) = $38.92 and sample size (n) = 20 students.
a) Confidence (C) = 99% = 0.99
α = 1 - C = 1 - 0.99 = 0.01
α/2 = 0.01/2 = 0.005
The z score of α/2 is the same as the z score of 0.495 (0.5 - 0.005) which is equal to 2.576. This means that Z(α/2) = 2.576
The margin of error (E) is given as:
[tex]E=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} } \\\\Substituting:\\\\E=2.576*\frac{38.92}{\sqrt{20} } \\\\E=8.7[/tex]
The confidence interval = (μ ± E) = (212.45 ± 8.7) = (203.75, 221.15)
Hence the 99% confidence interval is between 203.75 and 221.15.
b) The population mean is the same as the sample mean. Hence the population mean = $212.45
The height in feet, h, of a model rocket t seconds after launch is given by the equation h(t) = 3+70t - 16t^2. The average rate of change in h(t) between t = 1 second and t = 3 second is 6. What does the average rate of change tell you about the rocket?
Answer:
The average rate of change
[tex]\frac{dh}{d t} = 70 (1) - 16(2t)[/tex]
At t = 1
[tex]\frac{dh}{d t} = 70 (1) - 16(2t) = 38[/tex]
at t=3
Step-by-step explanation:
Step(I):-
The given function h(t) = 3+70t - 16t²
[tex]\frac{dh}{d t} = 70 (1) - 16(2t)[/tex]
The [tex]\frac{dh}{d t} = 70 (1) - 16(2t) =0[/tex]
70 - 32 t = 0
⇒ 70 = 32 t
⇒ [tex]t = \frac{70}{32} = \frac{35}{16}[/tex]
Step(ii):-
The average rate of change in h(t) between t = 1 second and t = 3 second
[tex]\frac{dh}{d t} = 70 (1) - 16(2t)[/tex]
At t = 1
[tex]\frac{dh}{d t} = 70 (1) - 16(2t) = 38[/tex]
At t = 3
Since 20% of 950 is
students can use
?
square feet of the courtyard.
190 square feet.
Step-by-step explanation:
In this problem, we assume that the courtyard measures 950 square feet.
So, 20% of 950 is
That is, the 20% of the courtyard is 190 square feet.
Therefore, the complete statement is
Since 20% of 950 is 190 , students can use 190 square feet of the courtyard:
190 square feet.
Step-by-step explanation:
In this problem, we assume that the courtyard measures 950 square feet.
So, 20% of 950 is
20 \%(950)=\frac{20}{100}950=\frac{1}{5}950= 190ft^{2}20%(950)=
100
20
950=
5
1
950=190ft
2
That is, the 20% of the courtyard is 190 square feet.
Therefore, the complete statement is
Since 20% of 950 is 190 , students can use 190 square feet of the courtyard
NEGATIVE INTEGER LESS THAN -5
Answer:
-6
Step-by-step explanation:
-6, -7, -8... and so on are less than -5
Answer:
-6, -7, -8... etc.
Step-by-step explanation:
how to solve 52/48 in the form of hcf
HCF is 4
Step-by-step explanation:
factors of 52 are: 2x2x13
factors of 48 are:2x2x2x2x3
common factors of 52%48 are: 2
hence, = 2x2
=4
hope it helps
The table below shows some inputs and outputs of the invertible function fff with domain all real numbers. xxx 555 333 111 1 81818 000 999 f(x)f(x)f, left parenthesis, x, right parenthesis 999 -2−2minus, 2 -5−5minus, 5 -1−1minus, 1 111 111111 Find the following values: f^{-1}(f(58))=f −1 (f(58))=f, start superscript, minus, 1, end superscript, left parenthesis, f, left parenthesis, 58, right parenthesis, right parenthesis, equals f(f(5))=f(f(5))=f, left parenthesis, f, left parenthesis, 5, right parenthesis, right parenthesis, equals
Invertible functions are functions whose inverse can be calculated.
The values of the expressions are: [tex]f^{-1}(f(5)) = 5[/tex] and [tex]f(f(5)) = 11[/tex]
The table entry is given as:
x | 5 | 3 | 1 | 18 | 0 | 9
f(x) | 9 | -2 | -5 | -1 | 1 | 11
(a) Calculate f^-1(f(5))
Start by calculating f(5).
From the table, we have:
[tex]f(5) = 9[/tex]
Take inverse function of both sides
[tex]f^{-1}(f(5)) = f^{-1}(9)[/tex]
From the table, the inverse value of 9 is 5.
i.e. [tex]f^{-1}(9) = 5[/tex]
So, we have:
[tex]f^{-1}(f(5)) = 5[/tex]
(b) Calculate f(f(5))
In (a) above, as have:
[tex]f(5) = 9[/tex]
So, the function becomes
[tex]f(f(5)) = f(9)[/tex]
From the table, the value of f(9) is 11.
So, we have:
[tex]f(f(5)) = 11[/tex]
Read more about invertible functions at:
https://brainly.com/question/15300796
WILL MARK BRAINLIEST! What are the coordinates of point P?
A. (Negative 4.5, negative 2)
B. (Negative 2, negative 4.5)
C. (2, negative 4.5)
D. (4.5, negative 2)
Reid earns $9.00 per hour painting furniture and has already earned $22.50. The number of hours, x, for which Reid painted can be found using the equation 22.50=9x.
How many hours did Reid paint?
Answer:
2.5 hours or 2 hours and 39 min
Step-by-step explanation:
22.50/9
name the property
cx1=c
83+(52+17)=(83+52)+17
22+b+18=b+22+18
Answer:
distributive property :)
Increase £15837.77 by 8.5%
Answer:
32,100 Millimeters
3,210 Centimeters
3.21 Decameters
Hope It Helps
Step-by-step explanation:
BEST ANSWER WILL BE MARKED BRAINIEST AND AWARDED HIGHEST POINTS\
Give an example of translation symmetry in nature, like when you take a walk outside. (do not use honey hives as an example.)
One example I've seen many times when I walk in the park, or just outside my house, is the pattern on the back of a moth. Here's an example of one. I hope this helps.
2. O
Mia buys ink at the office supply store for a business.
She buys 3 printer cartridges, and the sales tax is 7%. Write an expression
to represent the total cost of ink supplies in two different ways.
Answer:
The total cost of the ink supplies can be represented in two different ways, as follows:
a. 3p (1+r)
b. p * (1+ r) * 3
Step-by-step explanation:
a) Data and Calculations:
Number of printer cartridges bought = 3
Sales tax rate = 7%
The total cost can be represented as:
Total cost = 3p (1+r)
where p = the price of a printer cartridge
and r = the sales tax rate
Alternatively, the total cost can be represented as:
Total cost = p * (1+ r) * 3
b) Whichever expression is used, the total cost derived will remain the same. The first expression includes the sales tax in the total cost, while the second expression includes the sales tax in the cost of the unit before arriving at the total cost.
Answer:
3c+3c(0.07)
Step-by-step explanation:
273+147+325 how much is it all together
Answer:
745
Step-by-step explanation:
Answer:
745.
Step-by-step explanation:
Next time you can use a calculator so you don't use up your points if you want.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
if f is a signum function then f(100) =
Answer:
787
Step-by-step explanation:
i took the test
Find the value of x that will make A||B.
А
5X
(4x + 12
x
< = [?]
Answer:
x=12
Step-by-step explanation:
Lines A and B are parallel, with a transversal passing through them.
The properties of two parallel lines and a transversal tells us that angles 5x and 4x+12 must be equal, because they are a pair of alternate exterior angles.
To solve for x, we do 5x=4x+12
Subtract 4x on both sides
x=12
Answer: 12
Step-by-step explanation:
Finish the following table for the given function with x as the independent variable. x 10 10 15 10 15 Ax) = V100- x
a. 95, 90, 85
b. 9.75, 9.49, 9.22
C. 9.75, 9.22, 9.49
d. 10, 9,8
Answer:
Option (b) is true.
Step-by-step explanation:
Given the function
[tex]f\left(x\right)=\sqrt{100-x}[/tex]
plug in x = 5 in the function
[tex]f\left(5\right)=\sqrt{100-5}[/tex]
[tex]\:f\left(5\right)=\sqrt{95}\:\:\:\:[/tex]
[tex]f(5) = 9.75[/tex]
plug in x = 10 in the function
[tex]f\left(10\right)=\sqrt{100-10}[/tex]
[tex]\:f\left(10\right)=\sqrt{90}\:\:\:\:\:[/tex]
[tex]\:f\left(10\right)=9.49[/tex]
plug in x = 15 in the function
[tex]f\left(10\right)=\sqrt{100-15}[/tex]
[tex]\:f\left(10\right)=\sqrt{85}\:\:\:\:\:[/tex]
[tex]\:\:f\left(15\right)=9.22[/tex]
Thus, the table will be:
x f(x)
0 10
5 9.75
10 9.49
15 9.22
Therefore, option (b) is true.