Answer:
Step-by-step explanation:
800-8p<750
Four families went out for lunch. The total food bill came to $220. The families also left a $30 tip for the waitress.
If each family spent the same amount, about how much did each family spend on dinner? Complete the explanation on how you found your answer.
First, add $
and $30 to find the total bill.
$
is between $
and $
, but closer to $
. $
× 4 = $240, so each family spent about $
on lunch.
$250 Dollars.
All 4 families together spent 1,000 Dollars.
ALL FAMILIES SPEND 1000 DOLLARS
$ 250 DOLLARS
solve for x in the diagram below
Multiply 1/10x17/18 pls help I'll give u brainlest
Calculate :
[tex] \frac{1}{10} \times \frac{17}{18} = \frac{1 \times 17}{10 \times 18} = \frac{17}{180} [/tex]
Answer:
17/180
Step-by-step explanation:
You multiply both of the tops together and both of the bottoms together.
1 x 17 = 17
over
10 x 18 = 180
Hope this helps :D
2) A farmer has a cylindrical silo he uses to store corn. The silo has a height of 50 feet and a
radius of 12 feet. How many cubic feet of corn can the silo hold? Use 3.14 for pi
Answer:
Step-by-step explanation:
Volume of Cylinder = πr²h
= 3.14 * 12 * 12 * 50
= 22608 cubic ft
How many years are in 525,000 minutes? Round to the nearest whole.
(1 hour=60 minutes, 1 day=24 hours, 1 year=365 days)
Answer:
About 1 year
Step-by-step explanation:
the aos of x=2?????????
Please help I need help
Answer:
3
Step-by-step explanation:
just get everything but the h to the other side
divide by b1 + b2
1/2h = A/b1 + b2
then multiply by 2
h = 2A/b1 + b2
Please help! I don’t get this! No links please
Answer:
66
Step-by-step explanation:
V=πr2h
3=π·32·7
3≈65.97345
What is the value of x in simplest radical form?
Answer:
x = 85
Step-by-step explanation:
Because this is a right triangle, we can use the Pythagorean Theorem:
a² + b² = c²
Where c is the hypotenuse, or the longest side. This is opposite to the right angle of the right triangle. So now you have:
84² + 13² = x²
7056 + 169 = x²
7225 = x²
√7225 = √x²
85 = x
x = 85
A salesperson earns a 5% commission for each sale they make. How much will the salesperson make from a sale of $700?
find the integral of 1\1+(2x)^2
Answer:
[tex]\displaystyle \int {\frac{1}{1+(2x)^2}} \, dx = \frac{artan(2x)}{2} + C[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityCalculus
Derivatives
Derivative Notation
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Antiderivatives - Integrals
Indefinite Integrals
Integral Constant CU-Substitution
Integration Property [Multiplied Constant]: [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]
Arctrig Integration [arctangent]: [tex]\displaystyle \int {\frac{1}{a^2 + u^2}} \, du = \frac{1}{a}arctan(\frac{u}{a}) + C[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle \int {\frac{1}{1+(2x)^2}} \, dx[/tex]
Step 2: Integrate Pt. 1
[Integral] Rewrite: [tex]\displaystyle \int {\frac{1}{1^2+(2x)^2}} \, dx[/tex]Step 3: Identify Variables
Identify variables for u-substitution of arctrig.
Set u: [tex]\displaystyle u = 2x[/tex]Differentiate [Basic Power Rule]: [tex]\displaystyle \frac{du}{dx} = 1 \cdot 2x^{1 - 1}[/tex][Derivative] Simplify: [tex]\displaystyle \frac{du}{dx} = 2[/tex][Derivative] Rewrite: [tex]\displaystyle du = 2dx[/tex]Set a: [tex]\displaystyle a = 1[/tex]Step 4: Integrate Pt. 2
[Integral] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle \frac{1}{2}\int {\frac{2}{1^2+(2x)^2}} \, dx[/tex][Integral] U-Substitution: [tex]\displaystyle \frac{1}{2}\int {\frac{du}{a +u^2}}[/tex][Integral] Arctrig Integration [arctangent]: [tex]\displaystyle \frac{1}{2}[\frac{1}{a}arctan(\frac{u}{a})] + C[/tex][Integral] Back-Substitute: [tex]\displaystyle \frac{1}{2}[\frac{1}{1}arctan(\frac{2x}{1})] + C[/tex][Integral] Divide: [tex]\displaystyle \frac{1}{2}[arctan(2x)] + C[/tex][Integral] Multiply: [tex]\displaystyle \frac{arctan(2x)}{2} + C[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Integration of Arctrig
Book: College Calculus 10e
Convert: 112 meters =______________________
centimeters
Answer: m cm
112.00 11,200
Step-by-step explanation:
PLEASE I need help with this math problem please
Answer:
68 in³
Step-by-step explanation:
Cylinder = 3x2x2x3=36
Sphere = 4/3x3x2x2x2=32
36+32=68
Write the polynomial as a product of a difference and a sum: b^2-4/9
Answer:
[tex] \sf \huge \boxed{ \boxed{(b + \frac{2}{3} )(b - \frac{2}{3} )}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:algebraPEMDAStips and formulas:[tex] {x}^{2} - {y}^{2} = (x + y)(x - y)[/tex]let's solve:[tex] \sf \: rewrite : \\ ( {b})^{2} - ( \frac{2}{3} {)}^{2} [/tex][tex] \sf use \: the \: formula : \\ (b + \frac{2}{3} )(b - \frac{2}{3} )[/tex]Answer:
Solution given:
[tex]b^{2} -\frac{4}{9}[/tex]=[tex]b^{2} -\frac{2^2}{3^2}=b^2 -(\frac{2}{3})^2[/tex]
it is in the form of x²-y²=(x+y)(x-y)
so
[tex]b^2 -(\frac{2}{3})^2=(b+\frac{2}{3})(b-\frac{2}{3})[/tex] is A required polynomial.
Step-by-step explanation:
help me with this please
Number 11,12,13,14,15,16,17,18,19,20
Answer:
13 )c
16) c
17) a
18 )d
20) 9x^2 +12
number 20. the answer is not in the option
Find the measure of angle B in triangle ABC below.Explain
Answer:
B ≈ 76°
Step-by-step explanation:
∆ABC is a right triangle
Reference angle = B
AC = 8 units = Opposite
BC = 4 units = Adjacent
Thus, apply TOA:
Tan B = Opp/Adj
Tan B = 8/2
Tan B = 4
B = Tan^{-1}(4)
B ≈ 76°
In which number is the value of the 7 in the number 1.273
The hundredths place
the 2 would be tenths, 1 is hundredths, and the 3 is thousandths
Caroline saves money in an arithmetic sequence: $350 the first year, another $550
the second, and so on. How much money does she save after 31 years?
Which of the following rational functions is graphed below?
D. F(x)=(x-1)/x(x-3) Just took the test
plz help me
..................
Answer:
Step-by-step explanation:
What is the measure of the missing angle?
101°
32°
?
imagine a triangle
Answer:
It is 47°
Step-by-step explanation:
Thanks alot for the question :)
there are 120 children standing in a line,every third gets a rubber, every fourth child gets ruler and every fifth gets a book. in what position is the first child that gets all 3 items?
Answer:
60th position is the first child that gets all 3 items
Step-by-step explanation:
Find the LCM of 3 , 5 and 4.
Least common multiple of 3 , 4 and 5 = 3 * 4 * 5 = 60
Answer:
3,6,9,12,
4,8,12,16,
5,10,15,
in 60th position
60is the first number that can be divided by 60/3=20 60/4=15 60/5=12
please help me with this question
Answer:
[tex] \sqrt{8 + y} [/tex]
40°
50°
Х
x = __ degrees
Step-by-step explanation:
you just do 180 - 90 = 90 degree is x value
Answer:
x should equal 90.
Step-by-step explanation:
x is the sum of those two interior angles. 50 + 40 equals 90.
Helps please is for now
Answer: do ur test ur self
Step-by-step explanation:
cosA-sinA+1/cosA+sinA+1=1-sinA/cosA
Answer:
steps below
Step-by-step explanation:
(cosA-sinA+1) * cosA = cos²A - sinA cosA + cosA
= (1 - sin²A) - sinA cosA + cosA + sinA - sinA
= cosA + sinA + 1 - sinA cosA -sin²A - sinA ..Re-group
= (cosA + sinA + 1) - sinA (cosA + sinA + 1)
= (cosA + sinA + 1) * (1 - sinA)
(cosA-sinA+1) / (cosA + sinA + 1) = (1 - sinA) / cosA
Any help would be appreciated, No links please. Thank you
Answer:
C
Step-by-step explanation:
I already did this. ;)
Porcentajes
•Halla los siguientes porcentajes.
•
•a) 15% de 300, b) 25% de 8,000, c) 50% de 7,500,
•
•d) 45% de 1000, e) 30% de 3,600, f) 25% de 5,500
Answer:
A: 45
B: 200
C: 3750
D: 450
E: 1080
F: 1375
Step-by-step explanation:
When Reena subtracted 9 from thrice a number, the result was 15. Then the number is
-7
8
-3
-8
Answer:
8
Step-by-step explanation:
Thrice means the same as 3, so 3 × 8 = 24 and when 9 is subtracted from 24 it is equal to 15
Answer:
Step-by-step explanation:
let the number be x
3x-9=15
3x=15+9 add 9 from both sides
3x=24
x=8
9 ft. 15 ft The volume of the figure is cubic feet. 15 ft. 15 ft
Answer:
4,050 cubic feet
Step-by-step explanation:
The figure is made up of a square pyramid and cube
Therefore:
Volume of the figure = volume of the square pyramid + volume of the cube
✔️Volume of the square pyramid = ⅓*a²h
a = 15 ft
h = 9 ft
Volume of square pyramid = ⅓*15²*9 = 675 ft³
✔️Volume of the cube = s³
s = 15 ft
Volume of the cube = 15³ = 3,375 ft³
✔️Volume of the figure = 675 + 3,375 = 4,050 cubic feet