Answer:
f(-2)=4, f(0)=8, f(5)=18
Step-by-step explanation:
f(x)=2x+8
f(-2)=2(-2)+8
f(-2)=-4+8
f(-2)=4
f(0)=2(0)+8
f(0)=0+8
f(0)=8
f(5)=2(5)+8
f(5)=10+8
f(5)=18
An employee earned $21,871 this year. This was a raise of 4% over last year. What was his salary last year? Round to the nearest dollar, if necessary.
O A. $21,784
O B. $21,030
OC. $21,867
OD. $20,996
O E. None of these
Answer:
D
Step-by-step explanation:
21,871 x 0.96 = 20,996
A certain model of remote-control Stanley garage door opener has nine binary (off/on) switches. The homeowner can set any code sequence. (a) How many separate codes can be programmed
Answer:
[tex]Codes= 512[/tex]
Step-by-step explanation:
Given
[tex]Switches = 9[/tex]
[tex]Controls = 2[/tex] ------- on or off
Required
Determine the number of codes to be programmed
Since each switch has any of the on or off controls (i.e on or off), then:
The first switch can be coded in any of the 2 controls
The second switch can be coded in any of the 2 controls
The third switch can be coded in any of the 2 controls
Up till the ninth switch
So, we have that:
[tex]Codes= 2 * 2 *2*2*2* 2 *2*2*2[/tex]
[tex]Codes = 2^9[/tex]
[tex]Codes= 512[/tex]
Hence, there are 512 possible codes
Joanne designs and sells t shirts through an online forum. she paid 80 dollars for general supplies. It costs her 2 dollars to make each t shirt. She charges 6 dollars per shirt. Determine how many t shirts Joanne needs to sell in order to break even.
Answer:
20 shirts
Step-by-step explanation:
We are told she paid 80 dollars for general supplies. It costs her 2 dollars to make each t shirt.
Total cost of production is;
80 + 2t
Where t is number of t-shirts.
We are told that She charges 6 dollars per shirt.
This means that total revenue from sales is; 6t
Now,in economics or business, break even point is the point where revenue and total cost are equal.
Thus, break even point will be at;
80 + 2t = 6t
6t - 2t = 80
4t = 80
t = 80/4
t = 20 shirts
Select the correct answer.
Which one of these functions is a cubic function?
Answer:
B
Step-by-step explanation:
A cubic function begins with an X^3.
Which of the following expressions is equivalent to 18 m - 12?
A. 021-9 m+6)
B. -1(18 m +12)
C. 6(3 m - 2)
D. -3(-6 m - 4)
Answer:
C and D
multiply the 6 and -3 to the numbers inside the parenthesis
Find the measures of angles A, B, and C in triangle ABC
m < B=3* m
m
Answer:
what type of question is this
Priya ran 1 1/2 miles today, and Tyler ran 3 3/4 miles. How many times the length of Priya’s run was Tyler’s run?
Answer:
2.5
Step-by-step explanation:
The length of Priya’s run was 2.5 times Tyler’s run.
Given
Priya ran 1 1/2 miles today, and Tyler ran 3 3/4 miles.
To determine how many times the length of Priya’s run was Tyler’s run following all the steps given below.
Let, the distance covered by Priya be x and Tyler be y.
Priya ran 1 1/2 miles today.
Then,
[tex]\rm = 1 \dfrac{1}{2}\times x\\\\= \dfrac{2\times 1+1}{2}\times x\\\\= \dfrac{2+1}{2}\times x\\\\=\dfrac{3x}{2}[/tex]
Tyler ran 3 3/4 miles.
[tex]\rm = 3 \dfrac{3}{4}\times y\\\\= \dfrac{4\times 3+3}{4} \times y\\\\= \dfrac{12+3}{4} \times y\\\\= \dfrac{15y}{4}[/tex]
On comparing both the distance
[tex]\rm \dfrac{3}{2} \times x= \dfrac{15}{4}\times y\\\\x = \dfrac{5y}{2} \\\\x = 2.5y[/tex]
Hence, the length of Priya’s run was 2.5 times Tyler’s run.
To know more about Equation click the link given below.
brainly.com/question/20170569
Put brackets in the expression to make the following true. 4 - 7 - 8 + 6 = -17
The retail store damaged the containers and now must sell them for $12.50. If they original bought
them for $16.00. What is the decrease percent?
Answer:
21.875 percent decrease
Step-by-step explanation:
.Lakewood Auditorium For the next movement, the director tells the students to move on the stage so that rectangle ZYXW is translated 25 feet to the left and 20 feet down. What are the coordinates of rectangle Z′Y′X′W′ '?
Answer:
hwhjwjaikwkww jajjksisiofee oakw
It takes andre 4 minutes to swim 5 laps. At this rate heswims how many laps per minute.
Answer: It takes him 1 minute and 25 seconds
Step-by-step explanation:
5 divided 4
4 times 1 = 4
5-4=1
put the decimal and make 1=10 Ans.: 1.25
4 times 2 = 8
10-8=2
put the 0 = 20
4 times 5 =20
20-20=100
HURRY
One-fourth of the sum of 2p and 11: and show your work please
Answer: 0.5p + 2.75
Step-by-step explanation:
since it's one-fourth of it you can divide it by 4
to find the solution.
For the expression: 12 - 7k + 9 - k
What are the terms?
What are the like terms?
What are the coefficients?
What are the constants?
What is the expression simplified?
Answer:
like terms is -7k-k and 12+8
A painter uses 1.2 liters of the paint to cover 1m2 of the wall.
How much paint will he need to cover 7m2;?
Answer: He will need 8.4 liters to conver 7 m².
Step-by-step explanation:
1. You have that 1 m² is convered with 1.2 liters of paint.
2. Therefore, to solve this problem, you can calculate the liters needed to cover 7 m² by multiplying this area by 1.2 liters and dividing this by 1 m².
Which transformations map the strip patterns onto itself?
Answer: D.
A horizontal translation and a glide reflection.
SOMEONE HELPPPPP PLEASEEEEE
Answer:
15. 0
16. Infinate
17. Infinate
18. -3
19. 11/-6
20. 0
Step-by-step explanation:
Im not explaining for each cause that would take too long, just know you plug in the y and x into the formula y1-y2/x1-x2. So for the first one, you would have -1--1 / 4--2 but when there are two subtractions signs it turns into a plus so -1+1 / 4+2
Challenge You buy 3.17 pounds of oranges, 1.25 pounds of pears, and 2.44 pounds of apples.
What is your total bill?
Grocery Store Prices
Item
Cost
Oranges
$0.99 per
pound
Pears
$1.09 per
pound
Your total bill is $
What is -7 as a fraction
Answer:-7/1
Step-by-step explanation:
Answer:
-7/1
Step-by-step explanation:
Write a recursive formula and an explicit formula for the following arithmetic sequence: -1,6,13,20,27
Answer:
Recursive formula is: [tex]a_1=-1 ; \ \ a_n=a_{n-1}+7[/tex]
Explicit formula is: [tex]a_n=7n-8[/tex]
Step-by-step explanation:
We need to find recursive formula and explicit formula for arithmetic sequence -1,6,13,20,27
In the given sequence First term a₁= -1
Common difference d = 7
Finding Recursive Formula
The recursive formula is of type:[tex]a_1= First \ term[/tex] and [tex]a_n=a_{n-1}+d[/tex]
Since the First term a₁ is -1 and common difference d is 7 so, the recursive formula for given arithmetic sequence will be:
[tex]a_1=-1 ; \ \ a_n=a_{n-1}+7[/tex]
Finding Explicit Formula
The explicit formula is of type: [tex]a_n=a_1+(n-1)d[/tex]
We have
First term a₁= -1
Common difference d = 7
So, explicit formula will be:
[tex]a_n=-1+(n-1)7\\a_n=-1+7n-7\\a_n=7n-8[/tex]
So, explicit formula is: [tex]a_n=7n-8[/tex]
Find an equation in standard form that has the following roots (-5,0) (6,0)
Answer:
x²-x-30=0
Step-by-step explanation:
so the roots are -5 and 6
we can find the exquation by knowing that
(x-root1)(x-root2)=the equation
(x+5)(x-6) distribute
x²-6x+5x-30 combine like terms
x²-x-30
PLEASE HELP!!!
Which expression is equivalent to 4sin^2(x) - 8sin^2(x/2)
Answer:
4(sin^2(x) -2sin^2(x/2))
Step-by-step explanation:
Matter of factorising
Answer:
It is 4(cos(x)-cos^2(x))
Step-by-step explanation:
I used an app on chegg and found that this is the only answer that is equivalent
Three times a number is less than 96.
Answer:
x is greater than sign then 32
Step-by-step explanation:
50 points!!! Please Help!!! Will give Brainliest!!!
THAT IS not 50 points, that is just 25 points
Answer:
okay but i dont see the problem
Step-by-step explanation:
Is the following relation a function?
Yes
or
No
Answer:
no
Step-by-step explanation:
not for sure tho
The distance around a park is 3/2 miles. Noah rode his bicycle around the park for a total of 3 miles. How many times around the park did he ride? Ill mark you brainliest:3
Answer:
2 times
Step-by-step explanation:
Answer:
2 times
Step-by-step explanation:
If 8 g of a radioactive substance are present initially and 2 yr later only 4 g remain, how much of the substance will be present after 5 yrs?
Answer:
none
Step-by-step explanation:
8-4=4
if every 2 years, 4 gallons disappear
then every 1 year, 2 gallons disappear
meaning that by 5 years there will be no substance left.
(5*2=10)
I need help with question 2 please answer
Answer:credit to gail2104lp42 but its 4/3 i think
Step-by-step explanation:
2.1-?=1 1/2
Please answer this I don’t want to fail
Simplified form of this expression 5z-8-4z-3z+6
Answer:
-2z-2
Step-by-step explanation:
5z-8-4z-3z+6
5z-4z-3z-8+6
-2z-2
Answer:
-2z -2
Step-by-step explanation:
5z-8-4z-3z+6
5z -4z - 3z +6 - 8
-2z -2
4r + 6r - 13 = 7r + 5
