Answer:
-7
Step-by-step explanation:
f(3) = 2(3)+3 = 9
g(4) = 2^4 = 16
9 - 16 = -7
1. Calculate the approximate area of the sector with a central angle of 87 as shown below. Round to the nearest hundredths
A 1.27
B 0.98
C21.97
D 5.31
20 POINTS!!
dont answer unless you know
Answer:
b
Step-by-step explanation:
a
it is A because a variation equation needs numbers and variables
Suppose you work as a clerk at a local retail store earning $6 per hour. The amount
of your weekly paycheck (before taxes are taken out) could be written F(x) = 6x.
16. What is the independent variable in this function and what does it represent?
17. What does the dependent variable represent?
Answer:
the independent variable is amount being paid per hour, as the final outcomes relys on that answer. the dependent variable is the hours worked, as thats the variable that can be changed.
Geometry, Chapter 9 test
Which number is farther from zero,3/4 or-1 1/4
Answer:
-1 1/4
Step-by-step explanation:
Answer:
-1 1/4 ofc
Step-by-step explanation:
imagine -1 1/4 as 1 1/4, 1 1/4 > 3/4
6.
Match the graph with its equation.
A. 7x + 7y = 49
B. –7x +7y = –49
C. 7x – 7y = –49
D. 7x + 7y = 0
Answer:
B. –7x +7y = –49
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope:
1
y-intercept:
(
0
,
−
7
)
x
y
0
−
7
1
−
6
Given parallelogram ABCD,
find x.
A
B
(4x + 2)°
1249
C
D
Answer:
hey here is the correct answer
Answer:
x = 30.5
Step-by-step explanation:
The opposite angles of a parallelogram are congruent , then
4x + 2 = 124 ( subtract 2 from both sides )
4x = 122 ( divide both sides by 4 )
x = 30.5
how do you write X to the 4th power >>?
Answer:
x^4
Step-by-step explanation:
What is the vertex of the absolute value function below?
Answer: (-3, 2)
Step-by-step explanation:
I just need help finding what Y is
Ellie is interested in getting a new phone. One phone company, phone 1 charges a monthly fee of 6$. They also charge 0.10$ per minute. Another company, phone 2, charges 5$ for a monthly fee and 0.25$ per minute. Write an equation for the total cost of each phone bill, where y is the total cost and x is the total number of minutes on the phone. Which company will allow Ellie to talk the longest is she only wants to spend 22$ a month
Answer:
Phone 1 will allow Ellie to talk the longest
Step-by-step explanation:
Phone 1:
(0.10x) + 6 = y
(0.10x) + 6 - 6 = 22 - 6
0.10/0.10x = 16/0.10
x = 160 minutes
Phone 2:
(0.25x) + 5 = y
(0.25x) + 5 - 5 = 22 - 5
0.25/0.25x = 17/0.25
x = 68 minutes
PLZZZ HELP MEE
James adds vitamin drops to his fish tank to keep his fish healthy. If James
follows the instructions on the bottle of vitamins, how many capfuls should he add
to his 450-litre tank? (4 marks)
• 2 drops per 5 litres
of water
• 1 capful = 40 drops
Step-by-step explanation:
350/5=70 liters X 2 drops for every 5 liters=140 drops needed for the whole tank.
Since 1 cupful contains 40 drops, the we have this:
140 drops needed for the full tank/40 drops contained in one cup, or,
140/40=3 1/2=3.5 number of cupfuls needed for the full tank.
hopefully this helps
Hey, I’m very bad at math and desperate. Help pls <333
Answer:
you need to reverse the symbol in inequality a.
Step-by-step explanation:
i hope this helps :)
will mark brainliest
Answer:
25 un²
Step-by-step explanation:
Formula = 1/2(b x h)
Base = 10
Height = 5
1/2( 10 x 5) = 1/2 (50) = 25
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
[tex]25 \: {units}^{2} [/tex]
Step-by-step explanation:
[tex] \frac{(10 \times 5)}{2} = 25[/tex]
what is (-3)^-5 with a positive exponent
An 80% confidence interval for a proportion is found to be (0.42, 0.48) . What is the sample proportion ?
Answer:
0.45, thats what we got
Step-by-step explanation:
a p e x
The height of the Eiffel Tower in Paris is 980 feet. If the scale of the cake to the actual tower will be 1 in: 15ft, how tall should Julie make the cake? Show your work and explain your reasoning. Will mark brainliest to the correct answer
The difference of the two numbers is 1.Their sum is 23.find the numbers
Answer:
11 and 12
Step-by-step explanation:
The two numbers will be called x and y. The sum of x and y is 23 and the difference is 1.
x + y = 23
x - y = 1
Add the equations together
x + y + x - y = 23 + 1
2x = 24
x = 12
y = x - 1
y = 11
A circular sign has a diameter of 13 feet.
What is the circumference of the billboard
sign, in feet?
Answer:
47.12 ft
Step-by-step explanation:
C = 2πr
2 · π · 7.5
≈ 47.12
select an ordered pair that is a solution to the equation represented by the graph.
a: -4,0
b: -2,-4
c: -2,0
d: 0,-4
Answer:
A. -4,0
Step-by-step explanation:
can you guys help me on this one please ?
Answer:
C7t
Step-by-step explanation:
Which expressions represent the "the sum of 3 and n"?
Select all that apply.
A. 3n
B .n+3
C .3+n
D .n+n+n
E .n^3
Answer:
C
Step-by-step explanation:
The answer would be C, yet if this was for homework or a test, you would write it out as "3 + n".
Answer:
It would be C, but as this is probably a practice test it would be 3 + n.
Asking again because last time I didnt get an actual answer. What is the surface area of this composite figure?
Answer:
644 cm^2
Step-by-step explanation:
10*7*2+12*7*2+12*10=140+168+120=428
10*12-3*3=111
428+111=539
8*3*4+3*3=96+9=105
539+105=644
multiple choice/ please help!!!
Answer:
All are right answer
But one is not (C)
There will no cot
Jason has a marble jar that contains 9 orange marbles, and 10 purple marbles. He will draw two marbles from the jar one at a time without replacing the first marble.
What is the probability that Jason gets an orange marble on his first draw and a purple marble on his second draw?
Answer: 5/19
Step-by-step explanation:
9 orange + 10 purple = 19 total
First draw - get orange:
9/19
Second draw - get purple - without replacing:
10/18
Math:
9/19*10/18 = 5/19 (I hope it’s okay for it to be a fraction)
A line segment can be drawn from each vertex of a polygon to every other vertex, forming the sides and
diagonals of the polygon. A square, for example, has 4 sides and 2 diagonals. Using combinations, write
an expression that would give you the total number of sides and diagonals for a polygon with
sides.
Answer:
n(n - 3)/2
Step-by-step explanation:
We are told that;
A square has 4 sides and 2 diagonals.
Now, a pentagon will have 5 sides and 5 diagonals
A hexagonal when drawn will have 6 sides and 9 diagonals
Thus, we see that;
When n = 4, d = 2
When n = 5, d = 5
When n = 6, d = 9
Using combination, we will find number of pairs of 2 vertices that can possibly be formed from n-vertices. Thereafter we will subtract n from that since it's neighboring vertices can't combine with the current one.
Thus, we have;
C(n, 2) - n
This gives s;
(n(n-1)/2) - n
Simplifying this gives;
(n(n - 1) - 2n)/2
>> (n² - n - 2n)/2
>> (n² - 3n)/2
>> n(n - 3)/2
help me out pleaseeeeeeeeeee
Step-by-step explanation:
1. 6y=2x+5(divide all sides by 6) y=1/3x+5/6 =1/3
Olivia download music for $1.89 per song. She has a credit on her account for $3. Which expression could be used to represent the cost of the music if Olivia downloads m songs?
Answer:
Answer 3 (1.89m - 3)
Step-by-step explanation:
Since we know that the price per song is $1.89, that is going to be the part of the equation that goes with the variable.
Since she has a 3 dollar credit, this will reduce the cost of whatever amount of songs she is buying by 3 dollars, which means the second part of the equation is -3. You have your answer, 1.89m - 3.
During testing, the experimental probability of completing a new game with a perfect score was found to be StartFraction 1 over 500 EndFraction. If 1,000,000 people buy and play the game when it is released, how many players will complete the game with a perfect score?
Given: 1/500 and 1,000,000
Multiply 1/500 & 1,000,000
1/500 * 1,000,000 = 2000
Thus, 2000 people are likely to complete the game with a perfect score
Darien is discounting all prices on the sales for 20%. Which expression below represents the price, p, of any item he marks down
A) 2.2p
B) 1.2p
C)0.8p
D)0.2p
Answer: C. 0.8p
Step-by-step explanation:
Since Darien is discounting the prices by 20%, the new price will be 80% of the original price, or 0.8 times the original price