Answers
Answer:
f(13)=105
f(4)=58
f(6)=-5
f(7)=26
Step-by-step explanation:
Good luck
Related Questions
Im stuck please help ( use the PEMDAS)
Answers
Answer: 2. (4-2) x4 =8
3. (7-1) * 6 = 36
4. 4+ 3+ 4 = 11
5. (15 x2) * -3 = -90
6. 10 * (-3) x19 - 8 = -578
Hope that helps
Step-by-step explanation:
Please Excuse My Dear Aunt Sally
Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
How many points separated the gold medalist and the fifth place competitor? points.
Answers
Answer:
26.67
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
26.67
Rewrite in simplest terms: (-8x – 9y) + (-X – 5y)
Answers
Answer:
-9x - 14y
Step-by-step explanation:
Step 1: Write expression
(-8x - 9y) + (-x - 5y)
Step 2: Combine like terms
-9x - 14y
a) 3x = 18
b) 2x=9
c) x/5=7
d) x/2=6.5
Answers
Answer:
a) 3x=18
x=18/3
x=6
b) 2x=9
x=9/2
or 4.5
c) x/5=7
x=7×5
x=35
d) x/2=6.5
x=6.5×2
x=13
hope it will help you.......Answer:
a) x = 6b) x = 9/2c) x = 35d) x = 13Step-by-step explanation:
a) 3x = 18, value of x?
→ 3x = 18
→ x = 18/3
→ [ x = 6 ]
Thus, value of x is 6.
b) 2x = 9, value of x?
→ 2x = 9
→ [ x = 9/2 ]
Thus, value of x is 9/2.
c) x/5 = 7, value of x?
→ x/5 = 7
→ x = 7 × 5
→ [ x = 35 ]
Thus, value of x is 35.
d) x/2 = 6.5, value of x?
→ x/2 = 6.5
→ x = 6.5 × 2
→ [ x = 13 ]
Thus, value of x is 13.
Kelly is recording the temperature of a cooling chemical. Using the table, determine the initial
temperature of the chemical when she poured into the beaker.
Answers
Answer:
Initial temperature of the chemical = 97°
Step-by-step explanation:
Time Temperature Difference
4 89.5 -
10 78.25 78.25 - 89.5 = -11.25
16 67.00 67 - 78.25 = -11.25
There is a common difference of -11.25 in each successive term.
Therefore, cooling of a chemical represents a linear function.
Let the function representing temperature is,
f(t) = at + b
Where 'a' = rate of change in temperature
b = initial temperature
t = time
Now 'a' = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] = [tex]\frac{78.25-89.5}{10-4}[/tex]
a = -1.875
f(t) = -1.875t + b
For t = 4 and f(t) = 89.50,
89.50 = -1.875(4) + b
b = 97
Therefore, function representing the cooling of chemical is,
f(t) = -1.875t + 97
And the initial temperature of the chemical was 97° when it was poured into the beaker.
Solve -5 x (- 5/2 ) x 4/15
25/4
10/3
20/4
15/2
Answers
Step-by-step explanation:
25/2*4/15
100/30
10/3
=0.3
On Monday, Ken spent half of his money on a new game. The next day he earned $12 mowing lawns. He now has $32. How much money did Ken have before he bought the game?
Answers
Answer:
He had $20 before he bought the game, you can use subtraction to find out how much Ken had
$32 - $12 = $20
What is the slope of the line that passes through the points (4, -9) and (-10, 18)?
Answers
The formula is y2-y1 over x2-x1. If you plug in you points that would be 18-(-9) over -10-4. Subtract and that’ll be your answer. Hope this helps!
(4 x 6) +9. pls help me
Answers
Step-by-step explanation:
[tex](4 \times 6) + 9[/tex]
Follow PEMDAS
[tex]24 + 9 \\ = 33[/tex]
Answer:
33
Step-by-step explanation:
[tex](4x6)+9?[/tex]
Ill take it as
[tex](4*6)+9[/tex]
[tex]4*6=24\\24+9=33[/tex]
WILL MARK AS BRAINLIEST HELP** NOTE : ANSWER IN FRACTION PLS
Answers
What property was used on 14k + 2(3k + 5) − 5 = 10 to obtain
14k + 6k + 10 − 5 = 10?
Answers
Answer: Distributive property.
Step-by-step explanation:
Answer:
Distributive property.
In this case, 2 is being distributed to 3k and 5 to get 6k and 10.
PLEASE HELP ME. I WILL GIVE BRAINLIEST TO THE FIRST PERSON WHO ANSWERS THIS QUESTION. I NEED AN ANSWER ASAP. FOLLOW ALL THE DIRECTIONS IN THE QUESTION.
Use the rules of equations and inverse operations to solve the equation. In your final answer, include all of your work.
x^3 + 3 = 57
Answers
Answer:
x=3*2 1/3
Step-by-step explanation:
In order to solve this non-linear equation, we need to move all the terms to the left side.
In our example,
- term 3, will be moved to the right side.
Notice that a term changes sign when it 'moves' from one side of the equation to the other.
(x^3 + 3) + (-3) = 57 + (-3)
We need to get rid of expression parentheses.
If there is a negative sign in front of it, each term within the expression changes sign.
Otherwise, the expression remains unchanged.
In our example, there are no negative expressions.
x^3 + 3 - 3 = 57 - 3
The function y = 3.75 +1.5(x - 1) can be used to determine the cost in dollars for a taxi ride
of x miles. What is the rate of change of the cost in dollars with respect to the number of
miles?
Answers
Answer:
$1.50 per mile
Step-by-step explanation:
y = 3.75 + 1.5(x - 1)
~Simplify left side
y = 3.75 + 1.5x - 1.5
~Combine like terms
y = 2.25 + 1.5x
As we can see, this question is written in slope-intercept form [ y = mx + b ] where m = slope and b = y-intercept.
1.5x resembles the slope (cost of how many miles you ride in the taxi)
2.25 resembles the y-intercept. We can just assume this is the "fee or tip" amount since the question doesn't state what this actually is.
Since 1.5 is the slope, this is the rate of change.
Best of Luck!
The rate of change of cost with respect to the number of miles is 1.5 dollars per mile.
Given information:
The function [tex]y = 3.75 +1.5(x - 1)[/tex] can be used to determine the cost in dollars for a taxi ride of x miles.
It is required to calculate the rate of change of cost with respect to the distance traveled.
The rate of change of cost can be measured as,
[tex]y = 3.75 +1.5(x - 1)\\y = 3.75 +1.5x - 1.5\\\dfrac{dy}{dx}=0+1.5-0\\\dfrac{dy}{dx}=1.5[/tex]
Therefore, the rate of change of cost with respect to the number of miles is 1.5 dollars per mile.
For more details, refer to the link:
https://brainly.com/question/8223651
Will mark the BRAINLEST!!! 50 points!! If you know any of the answers please help!?!
1.) Bicycles have three types of tires: mountain bike, road touring, and cruising. An experiment is to be conducted to determine whether the mileage before a tire change is needed is the same for all three types of tires. In previous studies, it was determined that bicycle weight (light, normal, heavy) is associated with frequency of tire changes, but bike type (mountain, road, cruising) is not associated with frequency of tire change. How would blocking best be used?
a. By blocking on bicycle type
b. By blocking on mileage
c. Blocking is not suggested.
d. By blocking on tire type
e. By blocking on bicycle weight
2.) From 2010 to 2015, a group of researchers conducted an experiment using two types of pain medication: pill A and pill B. The researchers gave the doctors the pills in unidentified packages so they would not know which package was pill A and which package was pill B. The patients participating did not know which pill they received either. What is this an example of?
a. The effect of a treatment unit
b. The placebo effect
c. A control group study
d. A double-blind study
e. Voluntary response bias
3.) Cocoa plant type 1 yielded 155 bushels per acre last year at a research farm. This year, cocoa plant type 2, planted in the same location, yielded only 123 bushels per acre and there was a major freeze. The researchers do not know whether the difference is the result of the superiority of type 1 or the freeze. What is this an example of?
a. Bias
b. Confounding variable
c. Matched-pairs design
d. The placebo effect
e. Replication
4.) A cell phone company is trying to find a waterproof cell phone case to add to its product line. Company managers know that plastic and silicone will be used. They also know that the depth of the water—less than five feet, between five feet and 20 feet, and more than 20 feet—affects the waterproof case. An experiment will compare all combinations of these choices. The cell phones will be subjected to each treatment, with one group dropped in water without a case, and all phones will be scored for quality. What is the control?
a. Cell phones in the plastic case
b. Cell phones in the silicone case
c. Cell phones in the plastic case dropped in water less than five feet deep
d. Cell phones in the silicone case dropped in water more than 20 feet deep
e. Cell phones with no case
5.) Do children prefer purple juice or yellow juice? Two different supplements, which have no effect on taste, are used on identical juice to produce purple juice or yellow juice. Volunteer children are randomly assigned to either purple juice or yellow juice, and they are asked to rate the juice on a scale from 1 point to 10 points. Is blinding demonstrated in the experiment?
a. No, because the volunteers do not know the color juice they are getting
b. Yes, by having the experimenter in a separate room pick one of the two containers at random and having a juice pulled from that container remotely
c. Yes, by having the statistician analyzing the results not know which volunteer sampled which juice
d. Yes, by having the volunteers wear a blindfold while drinking the juice out of the container, so that they don't know the color juice they are tasting
e. No, because the volunteers know whether they are drinking purple juice or yellow juice
Answers
Answer:
1. E
2. A
3. B
4. C
5. E
Step-by-step explanation:
The length, l , of a rectangle is 5 times its width. The perimeter of the rectangle is 96 centimeters.
Which equation can be used to correctly calculate the length of the rectangle?
Answers
96 =2(5w+w)
96=2(6w)
w is 8
So l=5w
Select all the situations that can be represented by 1/2⋅5. * 1 point Diego lives 5 miles from school, and Elena lives 1/2 as far away as Diego. How many miles does Elena live from school? Jada has 5 bottles that each contain 1/2 liter of water. How many liters of water is that in total? Noah has 5 meters of rope. How many pieces of rope of length 1/2 meter can he cut from it? Lin's goal is to run 5 miles. She ran 1/2 mile. What fraction of her goal is that?
Answers
Answer:
Elena lives 2.5 miles away from school.The total liters of water is 2.5 litersHe can cut 10 pieces of rope of length 1/2 meterThe fraction of her goal she ran is 1/10Step-by-step explanation:
From the question,
Diego lives 5 miles from school, and Elena lives 1/2 as far away as DiegoTherefore, Elena lives 1/2 of 5 miles away from school.
1/2 of 5 miles = 2.5 miles
Hence, Elena lives 2.5 miles away from school.
Jada has 5 bottles that each contain 1/2 liter of water.Since each bottle contain 1/2 liter of water, then
The total liters of water is (1/2 × 5) liters
1/2 × 5 = 2.5 liters
Hence, the total liters of water is 2.5 liters
Noah has 5 meters of ropeTo determine how many pieces of rope of length 1/2 meter he can cut,
Number of pieces of rope of length 1/2 meter that can be cut is 5 meter ÷ 1/2 meter
5 meter ÷ 1/2 meter = 10
Hence, he can cut 10 pieces of rope of length 1/2 meter.
Lin's goal is to run 5 miles. She ran 1/2 mile.To determine what fraction of her goal that is,
First, she ran 1/2 mile out of 5 miles.
The fraction of her goal she ran is 1/2 mile ÷ 5 miles
1/2 mile ÷ 5 miles = 1/10
Hence, the fraction of her goal she ran is 1/10.
Answer:
i need points :)
Step-by-step explanation:
In a class of 40 students, 19 play tennis, 20 play netball and 8 play both of these sports. A student is randomly chosen from the class. Determine the probability that the student plays tennis.
Answers
Answer:
19/40 OR 0.475 OR 47.5%
Step-by-step explanation:
The probability of an event is calculated by dividing the total number of 'favorable outcomes' by the number of total outcomes. Here, the number of 'favorable outcomes' is the number of students who play tennis, so 19. The total number of outcomes is 40 as there are 40 students. Therefore the probability a student plays tennis is 19/40, or 0.475 or 47.5%.
Hope this helped!
Witch number is the product of 12.22 x 15.38
Answers
Answer:
187.9436
Step-by-step explanation:
Multiply
Explanation: you can multiply it like normal numbers without the decimals.After you get your answer you just add the decimals in the right place(I'd you count the places for both,12.22 and 15.38 you get 4 spaces so you move the decimals 4 places to the left of 18,794,36 and you get 187.9436 I hope TR his helps :)
the standard form of 5000
Answers
Answer:
five thousand
Step-by-step explanation:
A particular rocket taking off from earths surface uses fuel at a constant rate of 12.5 gallons per minute. The rocket initially contains 225 gallons of fuel
Answers
Answer:
Y=12.5x+225
Step-by-step explanation:
CHECK THE COMPLETE QUESTION BELOW;
A particular rocket taking off from the earth surface uses fuel at a constant rate of 12.5 gallons per minute the rocket initially contains 225 gallons of fuel determine a linear model and Y equals X plus B form for the amount of fuel Y as a function of the number of minutes x at the rocket has burned
We were told to determine a linear model, where Y equals X plus B form for the amount of fuel Y as a function of the number of minutes x at the rocket has burned.
If we interpret this we have, Y=X+B , this equation can be compared to the standard equation of slope intercept of
Y= mx+b
Where the m is the slope, and b is the initial value at "y" intercept.
From the question, we were told that Y denotes a function of the number of minutes x at the rocket has burned
The given slope from the question, which is the rate= 12.5 gallons per minute
The given initial value =225 gallons of fuel which the value of "b"
If we substitute into the equation of the slope, we have;Y=12.5x+225 which is the required linear model .
Figures that have the same size and same shape. Their corresponding angles and sides are the same size. whats the answer?
Answers
Answer:
prostokąt i kwadrat
5(x + 4) + 21 ≥ −3 + 4(x − 8)
−5x − 20 + 21 ≥ −3 + 4x − 32
−5x + 1 ≥ 4x − 35
−9x ≥ −36
x ≥ 4
What mistake did Eduardo make in solving the inequality?
Answers
7th grade! Math commissions
Answers
Answer:
Trevor, Julio, Chantal, Vern, Danica, Andre, August, Maximus
Step-by-step explanation:
$964
$1,010
$1,165
$1,286
$1,425
$1,430
$1,530
$1,575
Answer:
$964
$1,010
$1,165
$1,286
$1,425
$1,430
$1,530
$1,575
Step-by-step explanation:
The sum of three consecutive integers is -90. What is the largest integer
Answers
Answer:
Step-by-step explanation:
The sum of three consecutive even integers is 108. What is the largest number? Explanation: Three consecutive even integers can be represented by x, x+2, x+4.
Find the solution: -9(2x - 1) = 45
x = -4
x =23/-9
x = -2
x = 3
Answers
Use distributive property and then subtract from both sides. Then divide by x and you get about -2 but round
n+q= 8.80
.05n+.25q=68
Answers
Answer:
i do not know
Step-by-step explanation:
Combine these two statements and write them as a biconditional.
Answers
Answer:
Two angles have the same measure if and only if they are congruent
Step-by-step explanation:
"If and only if" is used for a biconditional.
Two angles have the same measure if and only if they are congruent.
The table represents some points on the graph of a linear function. What function represents the same relationship?
Answers
Answer:
it is a
Step-by-step explanation:
i dont know how to explain it i just did the math and it came out to that
Answer:
its a
Step-by-step explanation:
i did the math
Using the rules of exponents,how would you find the exponent when you simplify?
Answers
Answer:
I believe the answer is option B because I am right. Haha trust me.
Step-by-step explanation:
helppp me plzzz on 3 through 10!!!!
Answers
Answer:
3. D
4. I
5. E
6. G
7. J
8. B
9. A
10. H