Answer:
4a-2b
=4(7)+2(4)
=28+8
=36
Answer:
[tex]4a - 2b \\ a = 7 \\ b = 4 \\ \\ so \: 4 \times 7 - 2 \times 4 \\ = 28 - 8 \\ = 20 \\ thank \: you[/tex]
Find the exact value of sin A in simplest radical form.
Step-by-step explanation:
sin A = p/h
= √75 / 10
so the value is √75/10
If x = 7 units and h = 4 units, then what is the area of the triangle shown above?
A.
28 square units
B.
42 square units
C.
14 square units
D.
8 square units
Here's link to the answer:
tinyurl.com/wpazsebu
What value of X guarantees that BC || DE?
Answer Choices:
1, 4, 5, 6.25
help me out :) & feel free to add an explanation <3
Answer:
4
Step-by-step explanation:
as BC║DE
so, AD:BD=AE:CE
or, CE=(BDₓAE)/AD
or, x=(5×16)/20=4
if x is my age then y is my friends age write and equation that gives the sum of our ages is 108. Write and equation given that my friends age Is double my age. what are our ages? find out by solving a system my age is and my friends age is
Answer:
Your age is 36 and your friends age is 72.
Step-by-step explanation: divide 108 by 3 (36) then take 2 of the thirds add them (72).
steps factoring polynomials using gcf for 9x²+9x
Answer:
Step-by-step explanation:
Step 1: Identify the GCF of the polynomial.
Step 2: Divide the GCF out of every term of the polynomial. ...
Step 1: Identify the GCF of the polynomial. ...
Step 2: Divide the GCF out of every term of the polynomial.
Step 1: Identify the GCF of the polynomial. ...
Step 2: Divide the GCF out of every term of the polynomial .
Approximate the volume of the solid. *round your answer to the nearest tenth.
Answer:
83.8 cm^3
Step-by-step explanation:
Volume of Cylinder = πr^2h
Volume of Full Sphere = 4/3πr^3
Help me with my homework fast pls
Answer:
2211.68
Step-by-step explanation:
V=πr^2h
V=π64*22
V=2211.68
Write in expression form:
Seven times the quotient of 8 and 5
Answer:
7 x (8 ÷ 5)
hhhhhhhhhhhhhhhhhhhhhhhhhhh
What is the sum of the x minus x bar squared? (this is the work you do on
the to variance and standard deviation. It is literally the step before you
find the variance) *
23, 17, 49, 59, 25, 78, 29
3,000
285
280
3,050
3,500
Answer is in the photo. I can only upload it to a file hosting service. link below!
tinyurl.com/wpazsebu
Find the area of the region enclosed by the graphs of the functions
f(x)=x^2, g(x)=x^6
by partitioning the x- axis.
(Use symbolic notation and fractions where needed.)
Answer:
[tex]\displaystyle A = \frac{8}{21}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsFunctionsFunction NotationGraphingSolving systems of equationsCalculus
Area - Integrals
Integration Rule [Reverse Power Rule]: [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]
Integration Rule [Fundamental Theorem of Calculus 1]: [tex]\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)[/tex]
Integration Property [Addition/Subtraction]: [tex]\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx[/tex]
Area of a Region Formula: [tex]\displaystyle A = \int\limits^b_a {[f(x) - g(x)]} \, dx[/tex]
Step-by-step explanation:
*Note:
Remember that for the Area of a Region, it is top function minus bottom function.
Step 1: Define
f(x) = x²
g(x) = x⁶
Bounded (Partitioned) by x-axis
Step 2: Identify Bounds of Integration
Find where the functions intersect (x-values) to determine the bounds of integration.
Simply graph the functions to see where the functions intersect (See Graph Attachment).
Interval: [-1, 1]
Lower bound: -1
Upper Bound: 1
Step 3: Find Area of Region
Integration
Substitute in variables [Area of a Region Formula]: [tex]\displaystyle A = \int\limits^1_{-1} {[x^2 - x^6]} \, dx[/tex][Area] Rewrite [Integration Property - Subtraction]: [tex]\displaystyle A = \int\limits^1_{-1} {x^2} \, dx - \int\limits^1_{-1} {x^6} \, dx[/tex][Area] Integrate [Integration Rule - Reverse Power Rule]: [tex]\displaystyle A = \frac{x^3}{3} \bigg| \limit^1_{-1} - \frac{x^7}{7} \bigg| \limit^1_{-1}[/tex][Area] Evaluate [Integration Rule - FTC 1]: [tex]\displaystyle A = \frac{2}{3} - \frac{2}{7}[/tex][Area] Subtract: [tex]\displaystyle A = \frac{8}{21}[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Area Under the Curve - Area of a Region (Integration)
Book: College Calculus 10e
2. Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 3617 in3. One day, her sink clogged. She has to use one of two conical cups to scoop the water out of the sink. The sink is completely full when Carissa begins scooping. (a) One cup has a diameter of 2 in. and a height of 4 in. How many cups of water must Carissa scoop out of the sink with this cup to empty it? Round the number of scoops to the nearest whole number. *** Complete sentences
Answer:Yes, your answers are correct.
The volume of a cone is given by V = 1/3πr²h. Since the diameter of the first cone is 4, the radius is 2; therefore the volume is
V = 1/3π(2²)(8) = 32π/3
We divide the volume of the sink, 2000π/3, by the volume of the cone:
2000π/3 ÷ 32π/3 = 2000π/3 × 3/32π = 6000π/96π = 62.5 ≈ 63.
The diameter of the second conical cup is 8, so the radius is 4. The volume then is:
V = 1/3π(4²)(8) = 128π/3
Dividing the volume of the sink, 2000π/3, by 128π/3:
2000π/3 ÷ 128π/3 = 2000π/3 × 3/128π = 6000π/384π = 15.625 ≈ 16
Step-by-step explanation:
A savings account earns 8% interest each year, compounded annually. If a person invests
$100 and makes no further deposits or withdrawals, what is the balance in the account
after 5 years? Round your answer to the nearest cent.
Answer:
100(1+8/100)5=146,93
Step-by-step explanation:
then take 100-146,93=46,93
The point D(-3, 1) is reflected over the x-axis. What are the coordinates of the resulting point, D′?
Answer:
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.
Step-by-step explanation:
For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).
Find general solutions of the differential equation. Primes denote derivatives with respect to x.
6xy^3+2y^4+(9x^2y^2+8xy^3) yâ²=0
Answer:
[tex]\mathbf{3x^2y^3+2xy^4=C}[/tex]
Step-by-step explanation:
From the differential equation given:
[tex]6xy^3 +2y ^4 +(9x^2y^2+8xy^3) y' = 0[/tex]
The equation above can be re-written as:
[tex]6xy^3 +2y^4 +(9x^2y^2+8xy^3)\dfrac{dy}{dx}=0[/tex]
[tex](6xy^3 +2y^4)dx +(9x^2y^2+8xy^3)dy=0[/tex]
Let assume that if function M(x,y) and N(x,y) are continuous and have continuous first-order partial derivatives.
Then;
M(x,y) dx + N (x,y)dy = 0; this is exact in R if and only if:
[tex]\dfrac{{\partial M }}{{\partial y }}= \dfrac{\partial N}{\partial x}}} \ \ \text{at each point of R}[/tex]
relating with equation M(x,y)dx + N(x,y) dy = 0
Then;
[tex]M(x,y) = 6xy^3 +2y^4\ and \ N(x,y) = 9x^2 y^2 +8xy^3[/tex]
So;
[tex]\dfrac{\partial M}{\partial y }= 18xy^3 +8y^3[/tex]
[tex]\dfrac{\partial N}{\partial y }[/tex]
Let's Integrate [tex]\dfrac{\partial F}{\partial x}= M(x,y)[/tex] with respect to x
Then;
[tex]F(x,y) = \int (6xy^3 +2y^4) \ dx[/tex]
[tex]F(x,y) = 3x^2 y^3 +2xy^4 +g(y)[/tex]
Now, we will have to differentiate the above equation with respect to y and set [tex]\dfrac{\partial F}{\partial x}= N(x,y)[/tex]; we have:
[tex]\dfrac{\partial F}{\partial y} = \dfrac{\partial}{\partial y } (3x^2y^3+2xy^4+g(y)) \\ \\ = 9x^2y^2 +8xy^3 +g'(y) \\ \\ 9x^2y^2 +8xy^3 +g'(y) =9x^2y^2 +8xy^3 \\ \\ g'(y) = 0 \\ \\ g(y) = C_1[/tex]
Hence, [tex]F(x,y) = 3x^2y^3 +2xy^4 +g(y) \\ \\ F(x,y) = 3x^2y^3 + 2xy^4 +C_1[/tex]
Finally; the general solution to the equation is:
[tex]\mathbf{3x^2y^3+2xy^4=C}[/tex]
3.26 From a box containing 4 black balls and 2 green balls, 3 balls are drawn in succession, each ball being replaced in the box before the next draw is made. Find the probability distribution for the number of green balls.
Answer:
[tex]P(X = x) = \frac{2^{3-x}}{27}[/tex]
Step-by-step explanation:
Given
[tex]Black = 4[/tex]
[tex]Green = 2[/tex]
[tex]r = 3[/tex] --- selected balls (with replacement)
Required
Determine the probability distribution for the green balls.
Let x be a [tex]random\ variable[/tex] such that:
[tex]x = 0, 1, 2, 3[/tex]
Because it is a selection with replacement
The probability of a green ball being drawn is always:
[tex]P(G) = \frac{Green}{Total}[/tex]
[tex]P(G) = \frac{2}{6}[/tex]
[tex]P(G) = \frac{1}{3}[/tex]
The probability of a black ball being drawn is always:
[tex]P(B) = \frac{Black}{Total}[/tex]
[tex]P(B) = \frac{4}{6}[/tex]
[tex]P(B) = \frac{2}{3}[/tex]
So, the probability distribution of green is:
[tex]P(X = x) = (P(B))^{3-x} * (P(G))^x[/tex]
[tex]P(X = x) = (\frac{2}{3})^{3-x} * (\frac{1}{3})^x[/tex]
Apply law of indices
[tex]P(X = x) = \frac{2^{3-x}}{3^{3-x}} * \frac{1^x}{3^x}[/tex]
[tex]P(X = x) = \frac{2^{3-x}*1^x}{3^{3-x}*3^x}[/tex]
[tex]P(X = x) = \frac{2^{3-x}*1}{3^{3-x+x}}[/tex]
[tex]P(X = x) = \frac{2^{3-x}*1}{3^3}[/tex]
[tex]P(X = x) = \frac{2^{3-x}}{27}[/tex]
What are the zeros of the quadratic expression 3x2 - 6x - 24?
Answer:
3(x−4)(x+2)
Step-by-step explanation:
A regular octagon with sides of length 8 and an apothem of length 9.66 has
an area of ___ square units
Α. 73.66
Β. 77.28
C. 17.66
D. 309.12
Ε. 38.64
F. 618.24
Answer:
D. 309.12
Step-by-step explanation:
The computation of the area is shown below:
As we know that
Area = a4s
where
a denotes apothem
s denotes side
So, the area is
= 9.66 (4) (8)
= 9.66 (32)
= 309.12 square units
Which of the following shows a loss of $900?
A. +$900
B. $900
C. -$900
D. -$9.00
HELP !!!!!!!!!! PLEASEEEEEEE
Answer:
13.825, 13, -13 25/40
Answer:
13.825, 13, and -13 25/40
Step-by-step explanation:
Hope this helps :)
Please help! The first person who answers will be the brainiest!
Answer:
132 degrees.
Step-by-step explanation:
Since the lines are parallel, the opposite angle is always the same, and since 48 degrees was the smaller bottom angle, the upper smaller angle is also 48 degrees. The line's total angle is 360 degrees, so 48 + 48 is 96, and 360 - 96 is 264, and then 264 divided by 2 is 132, so the larger angles on both intersections are 132 degrees.
The area of the rectangular painting is
given by the trinomial x^2 - 6x - 16. The
door's width is (x + 2). What is the door's
length?
Answer:
(x-8)
Step-by-step explanation:
you can test with FOIL, use division or synthetic division
In the figure angle B= angle D. AB=40, AC=35, BC=25, CE=28. Find ED to the nearest whole number. ( see image )
Answer:
i believe the answer is D
Step-by-step explanation:
im not entirely sure but that's what i got.
ssment L 4.10.4 Test (CST): Checking and Savings Question 2 of 25 Gwendolyn has $725,000 she wants to save. If the FDIC insurance limit per depositor, per bank, is $250,000, which of these ways of distributing her money between three banks will guarantee that all of her money is insured? O A. $240,000 in bank A, $240,000 in bank B, $245,000 in bank C B. $220,000 in bank A, $230,000 in bank B, $275,000 in banko C. $240,000 in bank A, $230,000 in bank B, $255,000 in bank C O D. $220,000 in bank A, $250,000 in bank B, $255,000 in bank C SUBLATT
Answer:
$250,000
Step-by-step explanation:
, but it is the only thing I
Answer:
$240,000 in bank a, $240,000 in bank b, $245,000 in bank c
Step-by-step explanation:
ap3xxxx babeyyy
If a certain factory produces 24 Pepsi bottles of one liter capacity each in 12 minutes,
approximately how many Pepsi bottles does it produce in one hour?
Answer:
It produces 120 bottles in one hour.
Step-by-step explanation:
This question can be solved by proportions.
24 Pepsi bottles of one liter capacity each in 12 minutes
24/12 = 2 bottles per minute.
How many Pepsi bottles does it produce in one hour?
One hour has 60 minutes. So
60*2 = 120
It produces 120 bottles in one hour.
Jenny is x years old. Thomas is 3 times as old as her. Jenny is 5 years older than Alexis.
A) Find Alexis's age in terms of x
B) Find Thomas's age in terms of x.
C) If x=12, how much older is Thomas than Jenny?
Answer:
C IS 36 CUZ 12X3=36
Step-by-step explanation:
sry i only can solve c
Which of the following segments is tangent to the circle?
Solve the question f/3+22=17
Answer:
f=-15
Step-by-step explanation:
Let's solve your equation step-by-step.
f /3 +22=17
Step 1: Simplify both sides of the equation.
1 /3 f+22=17
Step 2: Subtract 22 from both sides.
1/ 3 f+22−22=17−22
1/3f=-5
Step 3: Multiply both sides by 3.
3*(1/3f)=(3)*(-5)
f=−15
Answer:
f=−15
The value of the variable f for the given expression is f=-15.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the expression is f/3+22=17. The value of f will be calculated as:-
f /3 +22=17
Step 1: Simplify both sides of the equation.
1 /3 f+22=17
Step 2: Subtract 22 from both sides.
1/ 3 f+22−22=17−22
1/3f=-5
Step 3: Multiply both sides by 3.
3*(1/3f)=(3)*(-5)
f=−15
Hence, the value of f will be -15.
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ2
What amount of water fills a glass
Answer:
depends on the glass
Step-by-step explanation:
Step-by-step explanation:
it depends of the size of the glass and the measurement of the amount of water the glass can carry
Question
If an 8 ounce fruit drink costs $1.50, then how much should a 128
ounce (1 gallon) fruit drink cost? (just write the number, no dollar sign)
Answer:
24
Step-by-step explanation:
Answer:
24
Step-by-step explanation: Just multiply 16x1.50
Find the missing angle according to the Triangle Exterior Angle Theorem
Answer:its obviously 128
Step-by-step explanation: