) Evaluate the expression 6n² – 15 when n=5 6n to the second power minus 15 = 6 ( blank) to second power minus 15
Answers
The value of the expression is 145.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
6n² - 15
Now,
Substitute n = 5
6n² - 5
= 6 x 5² - 5
= 6 x 25 - 5
= 150 - 5
= 145
Thus,
The value of the expression is 145.
Learn more about expressions here:
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Related Questions
name at least two independent variables that could result in a change in a monthly electric bill
ill give thanks and brainliest ;-;
(please i had to repost since a bot answered my last questions, waste of my 20 points
Answers
Answer: There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.
Two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.
Independent VariablesIndependent variables are the determining factors that influence how a dependent variable changes.
For example, monthly electricity bill is a dependent variable which is dependent on the following:
Physical size of productsSkill level of operators of machines.Non-production machines utilizing electricity among others.Therefore, two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.
Learn more about independent variable on:
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Do any of y'all know how to do this I'm so confused and I need help plz
Answers
Answer:
8.625 ft, second option
Step-by-step explanation:
For the rectangles:
1.5 * 2.5 = 3.75
So, 3.75 ft for one rectangle
But there are two rectangles, so:
3.75 * 2 = 7.5
So now the area is 7.5ft for both rectangle.
For the triangle:
Triangle formula - 1/2 × Base × Height
In this case both the base and the height are 1.5 so next step is multiplying by plugging in the numbers
1/2 * 1.5 * 1.5 = 1.125
So the area for the triangle is 1.125 ft
Total area:
Now you just add the numbers you got which is 7.5 and 1.125
7.5 + 1.125 = 8.625
The area is 8.625 ft
i have a d in my class but i need it caught up to a b or an a asap so will anyone help me please? do like two sepperate answers for both but in one answering way
Answers
Answer: i do not under stand your question so edit your question and then i will edit my answer so you can get your answer
Step-by-step explanation:
Jaxon deposits $600 in an account that earns 2.5% simple interest. Emily deposits $600 in an account that earns 5% interest compounded annually. Who has more money when they close their account at the end of 3 years?
Answers
Answer:
Emily has more money
Step-by-step explanation:
She has more because if you divide the money by the percentage she will end up with more money
Some one pls help me asap
Answers
Answer:
10.5 is the answer thank me later
Step-by-step explanation:
PLZPLZ PLZ PLZ PLZ PLZ HELP ME I AM CONFUSED ND DONT KNOW WHAT TO DO!! PLZ SHOW UR WORK SHOW UR WORK!!!
Answers
A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results:
80 choose the aquarium.
60 choose the science center.
30 choose the planetarium.
40 choose the farm.
The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium.
Answer the questions to solve the problem.
1. How many students did the teacher survey?
Write your answer in the space below.
2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work.
Write your answer in the space below.
3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium?
Write your answer in the space below.
4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work.
Write your answer in the space below.
Answers
Answer:
1 is 210
Step-by-step explanation:
i got he answer by adding the 4 things up
Answer:
210 student's
Step-by-step explanation:
80 students chose the aquarium.
60 students chose the science center.
30 students chose the planetarium.
40 students chose the farm.
The students can't vote for more than one place, so you just add all the numbers together.
80 + 60 + 30 + 40 = 210 students
Step-by-step explanation:
HELP ASAP! This which craft makes no sense at all :/
Answers
I hope that’s works
This is for the people who really need the points to ask a question about their homework. Please, take it and ask questions on homework you don’t know how to answer to. It’s ten points to each person, enough to make a question for the both of you :)
Just to make sure it isn’t deleted, what is 1.5M written out in words?
Answers
Answer:
1.5 million
Step-by-step explanation:
By the way, thanks for the points :)
hey i'm new to this, i'm sure if i ask my question or if i answer your question but i guess i'll ask my question
What conflicting views on state and federal authority are revealed in Webster's and Calhoun's speeches?
Nia fills 4 pitchers of orange juice. Each pitcher holds 3 quarts. How many gallons does nia have?
Answers
this is the answer for your question 4x3=12
so hey what ups
Please can someone help me I'm confused
(Brainliest to the person who gets it )
Answers
Answer:
$90 = 60p
p = $1.50
Step-by-step explanation:
Brainliest Please!
Answer:$ 10 dollars per cupcake
Step-by-step explanation:
if she bought cupcakes for $30 and she needs the profit more than $90
10 x 60 = 600 so that would be better
Quickkk!!!! HELP!!!!!
Answers
Answer:
Too blurry.
But the answer should be the two angles u have add up together.
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
180-40-30 = 110 which is the interior angle of 1
And then you would do 180-110 = 70 to get the exterior angle
Hope this helps!
HYEOO PEEPS I NEED HELP
Answers
Answer:
mean
Step-by-step explanation:
median=8.5
mean=9.5
Hope this helps!
Answer:
9.5, 8.5
Step-by-step explanation:
A radar measures the speed of a car at 45 miles per hour. The actual speed of the car is 40 miles per hour what is the percent error in the reading of the radar.
Answers
Answer:45
Step-by-step explanation:
step-by-step explanation:
the radar was off by 5 miles per hour, so we need to find what percent 5 is out of 45. percent of (times) if you don’t know how to find that out.
make the assumption that 45 is 100% because it is the output.
next we represent the value we seek with x. so 100% = 45 and x% = 5.
this gives us the simple pair of equations 100% = 45(1) and x% = 5(2).
then multiplying the equations together like 100%/x% = 45/5.
make it into its reciprocal so x%/100% = 5/45. that comes out to be x= 11.11%
5 is 11.11% of 45 so the radar is off by 11.11%
HELP PLEASE!!!!!!!!!!!!!
Answers
Lara is filling water bottles for a bicycle race. The number of hours she expects to be on the course will affect how many water bottles lara prepares
1. the number of hours lara expects to be on course
2. the number of water bottles lara prepares
Choose which is a independent variable and dependent variable
Answers
Answer:
Independent variable- Number of water bottles preparing
Dependant variable- Number of hours she expects to be on the course
Step-by-step explanation:
The independent variable is the one you change. Lara in this case is changing the number of water bottles, she is preparing them. The dependant variable you can think of as the effect- depending on how many she prepares will influence the number of hours on the course.
On a graph, remember that the independent variable is on the bottom.
Hope this helps!
Complete the sentences below based on the graph of the function.
The illustration below shows the graph of y as a function of x.
Answers
x interslope is -7 then the y intercept is 1.
i dont know the slope tho.
hoped that helped:P
Felicia spends $50 on materials to make jewelry, and she plans on selling the pieces for $7 each. A friend donates $5 to get her started. Write an inequality to find the number of pieces of jewelry Felicia needs to sell and make a profit.
Answers
PLEASE HELP! NO LINKS AND DONT ANSWER JUST FOR POINTS OR U WILL BE REPORTED! I Will give brainiest!!!!!!
Answers
i=90 j=90 k=120 m=60 n=120 o=90
p=90 q=60 r=120 s=120 t=60 u=90 v=90 w=150 x=40 y=150 z=30
Complete each statement with a number that makes the statement true. Value of x that would make the statement on the left true
A. x<7°C =
B. x<-3°C =
C. -0.8°C D. x>-2°C =
D. x>-2°C =
Answers
Step-by-step explanation:
D. x>-2°C =
no bots answer please and will give brainliest
Answers
Answer:
27
Step-by-step explanation:
on one face you see 3 x 3 (top face)
3 x 3 = 9
and if you look at another side (right one is what im looking at) you will see 3 x 3 again so that means this will be equal to 3 cubed (3^3) or 3 x 3 x 3
if you do 9 x 3
9 x 3 = 27
that equals the volume of the cube
27 units cubed
For each question, identify the population and a possible sample.
Answers
Answer:
1 The number of people who bought the book. A best-seller list from the 1990s
2 The entire US. List of new cars bought between the given time points
3 The poplulation of North America that`s teachers. A Random sample of teachers incomes from different places inside North America.
4 A group of Tasmanian Devils. A few Tasmanian devils in a controlled environment
Hope this helps
If your smart and can do MATH!!!
Answers
Answer:
Step-by-step explanation:
Well, first of all the two angles listed on the diagram are alternate exterior angles. Since they are alt exterior angles, they must be congruent to one another. Congruent means: equal or the same.
1. So first I am going to form an equation.
(9x - 5) = (7x - 25)
2. Then I am going to solve.
(9x - 5) = (7x - 25)
3. First, I am going to add 5 from both sides and solve.
(9x - 5) = (7x - 25)
+5 +5
--------------------------
9x = 7x - 30
4. Now I am going to subtract 7x from both sides.
9x = 7x - 30
- 7x -7x
---------------------
2x = 30
5. I am going to divide 2 from both sides, thus making x = 15
2x - 30
÷ 2 ÷ 2
--------------
x = 15 ( This is x, now all you have to do is plug this into each identified angle.
So, the first identified angle is 130 degrees
The second one is also 130 degrees.
Remember, they are congruent so they have the same number (degrees
If you had a cube with a side length of 4, how can your write the calculations in exponential
Answers
Answer:
easy. the anwers would all be multiplied by 4 as all sides of a cube are equal
Step-by-step explanation:
Solve for volume please
Answers
Answer:
35.25
Step-by-step explanation:
brainly please
Answer:
V = 780yd
Step-by-step explanation:
We are given a rectangular prism with 3 different sides of numbers, then are asked to find the volume.
The volume of a rectangular prism is V = lwh
l = 20yd
w = 3.25yd
h = 12yd
All we need to do to find the volume is multiply all the number together :
V = 20yd * 3.25yd * 12yd
V = 65yd * 12yd
V = 780yd
please answer fast due at the end of class
Answers
What is the slope of the line that passes through the points listed in the table?
A. -4
B. -1
C. 1
D. 4
X | Y
1 | 4
2 | 3
Answers
Answer: D. 4
Step-by-step explanation:
im guessing?
Please answer, I will mark "BRAINLY" if good
An architect is constructing a model in the shape of a triangle that has one side length of 9 centimeters and another side length of 8 centimeters.
Which statement describes the possible length of the third side?
A.It can be any length.
B.It can be any length less than 17 centimeters.
C.It can be any length greater than 1 centimeter.
D.It can be any length greater than 1 centimeter and less than 17 centimeters.
Answers
BRAINLIEST (IF I GET A LINK I WILL HUNT YOU DOWN AND GUT YOU LIKE A FISH)
Here are some bank transactions from a bank account last week. Which transactions represent negative values? Monday:$650 paycheck deposited Tuesday:$40 withdrawal from the ATM at the gas pump Wednesday:$20 credit for returned merchandise Thursday:$125 deducted for cell phone charges
Answers
Answer:
These two transactions represent the negative transactions because they will have reduced the balance in the bank account.
$40 withdrawal from the ATM at the gas pump on Tuesday
$125 deducted for cell phone charges on Thursday
1. The chairman of the community bazaar is assigning people to chair committees. How many different
ways can the 6 people be assigned to chair the subcommittees?
Answers
Answer:
720 different ways
The 6 people be assigned in 720 different ways to chair the subcommittees.Step-by-step explanation: