Answer:
519
Step-by-step explanation:
an = 8n - 1
a65 = 519
final answer is 519
Which set of numbers could represent the lengths of the sides of a right triangle?
2,3,4
12, 15, 20
8, 9, 10
9, 40, 41
Answer:
D. 9, 40, 41
Step-by-step explanation:
We can use Pythagorean theorem (a²+b²=c²) to answer this question by squaring the smallest 2 lengths then seeing if it equals the square of the 3rd length.
2²+3² = 4+9 = 13 ≠ 4²
12²+15² = 144+225 = 369 ≠ 20²
8²+9² = 64+81 = 145 ≠ 10²
9²+40² = 81+1600 = 1681 = 41²
I. Directions: Write an algebraic expression for each
a) five less than three times a number
b) eight less than the quotient of a number and two
c) nine times the sum of a number and fifteen
d) The sum of twice a number and seven
f) A number less than twenty-five
II. Directions: Write two written expressions for each. Use the key vocabulary.
a. 10 - h b. (d + 9) x 10 c. 7(n + 3) d. c/10
Give a solution to the equation in "c" that you can see from the graph.
It takes 6 hours to drive 342 mi. He will drive for 8 hours tomorrow. if he drives at the same rate, how far will Aron drive in 8 hours?
Answer:
456 miles
Step-by-step explanation:
We can use proportions to solve
342 miles x miles
------------ = --------------
6 hours 8 hours
Using cross products
342 * 8 = 6x
2736 = 6x
Divide by 6
2736/6 = x
456 miles
Answer:
Aron will drive 456 miles in 8 hours
Step-by-step explanation:
set up as proportion and cross multiply to solve:
6 hours/342 miles = 8 hours/x
x = 456
Surface Area of Cylinder=2πrh+2πr2
Where r is the radius of the cylinder and h is the height of the cylinder. Find the surface area when r is 3 inches and h is 5 inches.
A. 112π in²
B. 48π in²
C. 80π in²
D. 50π in²
Answer: B. 48 pi in^2
Step-by-step explanation:
Plug the given values into the equation.
So the SA = 2*pi*3*5 + 2*pi*3^2
SA = 30pi + 18pi
SA = 48 pi in^2
In the morning, Blake had $14.75 saved. After earning money for helping with yard work, he had $21.25.
How much did Blake earn for helping with yard work?
Enter your answer in the box.
$
Answer:
$6.50
Step-by-step explanation:
21.25-14.75=6.5
Measuring by using Trigonometry
Answer:
x approximately = 11.971, y approximately = 0.837
Step-by-step explanation:
the 12 ft is the hypotenuse of the right angle triangle formed
Cos (theta) = adjacent/hypotenuse
so Cos(4) = x/12, solving for x = 11.971
Sin(theta) = opposite/hypotenuse
so Sin(4) = y/12, solving for y = 0.837
Emily measured a game room and made a scale drawing .The scale drawing was 1 inch = 1 foot .What is the scale factor of the drawing.
resouva a equação 7×+8=4×-10
Answer:
x = -6Step-by-step explanation:
7x+8=4x-10
3x = -18
x = -6
-------------------
check
7 * (-6) + 8 = 4 * (-6) - 10
-34 = -34
the answer is good
The seller wants to take $185,000 on the sale of his house after paying the commission of 6%. How much must the selling price be?
Answer:
196808.5106
Step-by-step explanation:
the seller will take 94% from the selling price and pay 6% to the commission, and he wants to take 185000 dollars
let the price = x
then x * 94% = 185000
Solving for x you get the answer
Angela has 3 pennies. She tells her friend that she has 3/10 of a dollar. Is she correct? Why or why not?
Answer:
Yes
Step-by-step explanation:
She is correct because 3/10 of 100 (a full dollar) is 0.3 which is 3 in pennies/cents. You could also do 3% of 100 which is 3 (pennies/cents)
Triangle DEF has vertices D(2,1), E(3,6), and F(5,-2). Find the vertices of triangle D’E’F’ after a translation of 4 units to the left and 3 units down.
D=
E=
F=
The graph I have attached shows the translation. The dashed triangle shows the first step (traveling left 4 units). The red triangle is the finished product.
So the new coordinates...
D- (-2,-2)
E- (-1,3)
F- (1,-5)
Write 3-5 sentences about why you should receive brainliest. Best answer gets brainliest. ::)
Answer:
First off, I LOVE helping people even if I'm not a professor teacher, or tutor. However, I always do my best to answer the questions as close to perfection as possible even if it can take an hour. I want people to easier to understand and leaner better when I gave an answer to their question, by doing that, I felt very proud of myself and felt like I accomplished a goal. I'm still very young and just started using Brainly, so I don't really know what a brainlist is (DON'T LAUGH). Even so, if you don't think that I deserve the brainlist, it's fine because once I'm older and have more experience, I could help more and more people with their questions or problems. If you actually gave me a brainlist, I'll be really grateful and I might give you a brainlist if you answered my questions. Anyway, when I received a brainnlist, the first thing that came up in my mind is that my answers are actually useful for once. P.s. if you give a brainlist, Thank u
Step-by-step explanation: I hope u like my response
The senior class at South High school raised $80,000 from raffle tickets. Tickets cost $150 for a chance to win a Disney Vacation and $200 for a chance to win a car. If a total of 475 tickets were sold, how many were sold for the Vacation and how many were sold for the car?
Answer:
y = 175. x = 300. Disney vacation is 300 sold. Cars sold were 175.
Step-by-step explanation:
They want to raise $80,000. There are a total of 475 tickets.
150x + 200y (Disney Vacation + Win a car) = 80,000
x + y = 475.
__
y=475-x
150x+200(475-x)=80000
150x+95,000-200x=80,000.
-50x + 95,000 = 80,000.
-50x = -15,000
x = 300.
Disney vacation is 300 sold.
300 + y = 475.
y = 175.
Cars sold were 175.
Additional Info:
I am 14 years old and I'm learning solving the systems by elimination and substitution, etc. Hope this is the correct answer.
1/6 and 3/8 as fractions with common denominator
Answer:
You can use 48 and 24
Step-by-step explanation:
You can figure out 48 by simply multiplying 6 times 8. You can figure out the 24 by noticing that 24 is divisible by both 6 and 8. 6 x 4 =24, and 8 x 3=24. I hope this helps!
Answer:
1/6 = 4/24
3/8 = 9/24
Step-by-step explanation:
The scale of a map is 2cm:15km. Find the actual distance for each map distance. 5cm
Step-by-step explanation:
2cm : 15cm so
5cm : 37.5cm
so 5cm is therefore=37.5cm
helllllppppppp help help
Answer:
1. 2
2. 8
3. 1.5
4. 62.83185
5. 18.85
6. 87.96
7. 12.57
8. 1256.64
9. 63.62
10. Half
11. perimeter
12. not sure
Step-by-step explanation:
Scott wanted to buy a notebook. He saw a sale at Staples onnotebooks, $4.50 for 5 notebooks. What is the cost for one notebook at Staples?
Answer:
90 cents or $0.90
Step-by-step explanation:
To find the answer, we need to find UNIT RATE
In this equation, to find unit rate, divide $4.50 (4.5) by 5 to get your answer
When we do this, we get an answer of…
90 cents!
I hope this helps!
(Please award brainliest if possible)
which is bigger 10.1mm or 101cm
Answer:
101cm is bigger
generally values of cm are bigger than mm
What is the factored form of the polynomial? x2 − 15x 36 (x − 4)(x − 9) (x − 3)(x − 12) (x 4)(x 9) (x 3)(x 12).
Polynomials consist of both indeterminates and coefficients. The factors of the polynomial x² - 15x + 36 is (x-3)(x-12).
What are polynomials?A polynomial consists of both indeterminates and coefficients and involves mathematical operations such as addition, subtraction, multiplication, and division.
Given to us
x² - 15x + 36
To find the factors of the polynomial,
[tex]x^2 - 15x + 36 \\\\[/tex]
We will replace -15 with two numbers such that their sum is -15 while, their product must be 36.
[tex]x^2 - 15x + 36 \\\\ = x^2 -12x-3x +36\\\\[/tex]
now, we will take x as the common term from the first two-term, while 3 as the common term from the next two terms.
[tex]= x^2 -12x-3x +36\\\\= x(x-12) - 3 (x - 12)\\\\= (x-3)(x-12)[/tex]
Hence, the factors of the polynomial x² - 15x + 36 is (x-3)(x-12).
Learn more about Polynomials:
https://brainly.com/question/17822016
Answer:
its b.
Step-by-step explanation:
your welcome
The probability that a student will
earn an A+ in AP Physics is 0.2. The
probability that a student will earn an
A+ in both AP Physics and AP
Statistics is 0.12. Given that a
Student has earned an A+ in AP
Physics, what is the probability that
he or she will earn an A+ in AP
Statistics?
Answer Choices:
0.024.
0.12.
0.24.
0.6.
[tex] \huge \sf \dag Answer : [/tex]
Option b, Because it is already known in the problem that the chances of someone getting an A+ in AP Physics are 0.12 and 0.2 is no longer needed because it could be just a mind-blower.
A cell phone company charges $20 a month for the base plan. They charge 10 cents for
every text, minute, or kilobyte of data use. Write and equation to express your cell phone bill.
O y = .20x - 10
O y = 10x – 20
O y = .10x + 20
O y = 20x + .10
I need help finding the slopes and lengths i already did the graph please helpneed asap
Answer:
v
Step-by-step explanation:
a. Slopes of each side:
AB: 3/4 --> 3 units up and 4 units right
BC: No slope. Slope requires a rise and a run. There's only a rise.
CD: 3/4 --> 3 units up and 4 units right
AD: No slope. Slope requires a rise and a run. There's only a rise.
b. Length of each side:
(You find this by using the distance formula)
AB: 5 units
BC: 5 units
CD: 5 units
AD: 5 units
A right triangle has legs measuring 16 in. And 28 in. What is the length of the hypotenuse? Round your answer to the nearest tenth. 23. 0 in. 32. 2 in. 44. 0 in. 1040. 0 in.
In a right-angled triangle, the Pythagoras theorem is used to find the hypotenuse. Then the hypotenuse is 32.2 inches.
What is a right-angle triangle?It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
Given
A right triangle has legs measuring 16 inches And 28 inches.
We know the Pythagoras theorem
[tex]\rm Hypotenuse ^2 = Base ^2 + Perpendicular^2[/tex]
Then the hypotenuse will be.
[tex]\rm Hypotenuse ^2 = Base ^2 + Perpendicular^2\\\\\rm Hypotenuse ^2 = 16^2 + 28^2\\\\ \rm Hypotenuse ^2 = 256 + 784\\\\\rm Hypotenuse ^2 = 1040\\\\\rm Hypotenuse \ = 32.2[/tex]
Thus, the hypotenuse is 32.2 inches.
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
or Of the 18 clients at Alana's salon, 8 of them have brown hair. What is the probability that a randomly selected client at Alana's salon has brown hair? Write your answer as a fraction or whole number. P(brown) =
Answer:
8/18 = 44.44%
Sameen bought 2 1/5 pounds of carrots for $6.60. At that rate, how much would 1 pound of carrots cost?
Answer:
3$
Step-by-step explanation:
Reduce the following fraction 25/55
Pls help quickly
Answer:
5/11
Step-by-step explanation:
In basketball, you can make close shots worth 2 points and far shots worth 3 points. In his game,
Vlad made 10 shots in total and scored 22 points. How many 3 point shots did he make?
Answer:
6
Step-by-step explanation:
6×3=18
18+4=22
He took 6 far shots and 2 close shots
Answer:
2 3-Point Shots
Step-by-step explanation:
I started with (2x6)+(3x3)
I decreased and increased the 2nd digits for each.
You can divide it but I didn't really wana
I ended up with 2x8+3x2
then that equals 22
Rewrite using a single positive exponent
7^-6 * 7^2
(The 6 is negative)
Answer:
Step-by-step explanation:
7^2/7^6 = 1/7^(6-2) = 1/7^4
Need answer fast please. Which line is perpendicular to y = x + 2 and passes through (4,-1)?
y = -x+1
y = -x + 3
y = -x + 2
y = -x +4
Answer:
C. y = -x + 3
Step-by-step explanation:
y = x + 2
Find perpendicular slope (opposite reciprocal):
x/1 --> -1/x or -x
Convert to point-slope form:
y - (-1) = -1 (x - 4)
y + 1 = -1x + 4
y = -x + 3