Answer:
AC ≈ 12.9 cm
Step-by-step explanation:
Using the ratio
sin40° = [tex]\frac{b}{20}[/tex]
Multiply both sides by 20
20 × sin40° = b, hence
AC = b = 20 × sin40° ≈ 12.9
The domain for f(x) and g(x) is the set of all real numbers.
Let f(x)=3x+5 and g(x)=x^2 .
Find g(x)-f(x)
A.) 3x^2-5
B.) x^3-5
C.) 3x^3-5x^2
D.) x^2-3x-5
Please an explanation too:) Thank you!
Answer:
D.) x^2-3x-5
Step-by-step explanation:
f(x)=3x+5
g(x)=x^2 .
Find g(x)-f(x)
g(x) - f(x)= x^2 -(3x+5)
Distribute the minus sign
x^2 -3x-5
Answer:
x² - 3x - 5 ⇒ answer D
Step-by-step explanation:
* Lets explain how to solve the problem
- There are two functions f(x) ang g(x)
- f(x) = 3x + 5 ⇒ it is a linear function
- g(x) = x² ⇒ it is a quadratic function
- Both functions have a domain the set of real numbers
- We want to subtract f(x) from g(x)
* Lets solve the problem
∵ g(x) = x²
∵ f(x) = 3x + 5
∵ f(x) will subtracted from g(x)
∴ g(x) - f(x) = (g - f)(x)
- Lets make the subtraction
∴ (g - f)(x) = x² - (3x + 5)
- Open the bracket by multiply the negative sign by the two terms
of the bracket
∵ -(3x) = - 3x
∵ -(5) = - 5
∴ (g - f)(x) = x² - 3x - 5
∴ g(x) - f(x) = x² - 3x - 5
What’s the value of x
Answer:
25
Step-by-step explanation:
2x + 2 + 5x + 3 = 180
2 lines that cross make consecutive angles supplementary.
Combine the left.
7x + 5 = 180 Subtract 5 from both sides.
7x +5-5=180-5 Combine
7x = 175 Divide by 7
7x/7=175/7
x = 25
The equation of the circle with center (3, -2) and radius 7 is:
Answer:
[tex](x-3)^{2}+(y+2)^{2}=49[/tex]
Step-by-step explanation:
The center-radius form of the equation of a circle is in the format;
[tex](x-h)^{2}+(y-k)^{2}=r^{2}[/tex]
with the center being at the point (h, k) and the radius being r units.
We simply plugin the values of the center and radius given in order to determine the equation of the circle;
The equation of the circle with center (3, -2) and radius 7 is;
[tex](x-3)^{2}+(y+2)^{2}=49[/tex]
Answer:
[tex](x-3)^2 + (y+2)^2 = 49[/tex]
Step-by-step explanation:
The general equation of a circle has the following form:
[tex](x-h)^2 + (y-k)^2 = r^2[/tex]
Where the point (h, k) represents the center of the circle and r represents the radius
In this case we know that the center is (3, -2) and the radius is 7.
Therefore:
[tex]h=3\\k = -2\\r=7[/tex]
Finally the equation of the circle is:
[tex](x-3)^2 + (y-(-2))^2 = 7^2[/tex]
[tex](x-3)^2 + (y+2)^2 = 49[/tex]
what is the equation of a line that goes through the point (0,5/6) and has a slope of 1
The slope is given as 1.
The Y-intercept is where the line crosses the Y axis when X is 0. This is also given by the point (0,5/6). X is 0 and Y is 5/6, so the Y-intercept is 5/6.
The equation of a line is given as y = mx +b where m is the slope and b is the y-intercept.
The equation is: y = x +5/6
Answer:
y = x+5/6
Step-by-step explanation:
The slope intercept form of the equation of a line is
y = mx +b
We are given the slope of 1 and the y intercept of 5/6 (The y intercept is when x=0)
y = 1x+5/6
y = x+5/6
A board 60 in. Long is cut two parts so that the longer piece is 5 times the shorter. What are the length of the two pieces?
Answer:
The shorter piece is 10 in. and the longer one is 50 in.
Step-by-step explanation:
First, let's set the shorter piece to be length x. Then the longer piece is 5x, or 5 times longer than the shorter piece.
Since both pieces combined equals to the length of the entire board, we can set these two lengths equal to it:
x + 5x = 60
And now solve for x:
6x = 60
x = 10 in (length of shorter piece)
Now let's find the length of the longer piece:
Longer = 5x = 5(10) = 50 in.
Which function has only one x-intercept at (-6, 0)?
Of(x) = x(x - 6)
f(x) = (x - 6)(x – 6)
f(x) = (x + 6)(x - 6)
f(x) = (x + 1)(x + 6)
Answer:
The function f(x) = (x - 6)(x - 6) has only one x-intercept. But at (6, 0) not at (-6, 0).Step-by-step explanation:
The intercept form of a quadratic equation (parabola):
[tex]y=a(x-p)(x-q)[/tex]
p, q - x-intercepts
Therefore
The function f(x) = x(x - 6) = (x - 0)(x - 6) has two x-intercepts at (0, 0) and (6, 0)
The function f(x) = (x - 6)(x - 6) has only one x-intercept at (6, 0)
The function f(x) = (x + 6)(x - 6) = (x - (-6))(x - 6)
has two x-intercept at (-6, 0) and (6, 0)
The function f(x) = (x + 1)(x + 6) = (x - (-1))(x - (-6))
has two x-intercepts at (-1, 0) and (-6, 0).
Answer:
the answer is d on edge
Step-by-step explanation:
Would the answer for 36 be $9.88 or $9.75?
total bill before any discounts $13.
she is a student, so she gets 20% off.
she brought an item of clothing, so she gets 5% off.
so she's really getting 20% + 5% off, namely 25% off her bill.
[tex]\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{25\% of 13}}{\left( \cfrac{25}{100} \right)13\implies 3.25}~\hfill \stackrel{\textit{bill with all discounts}}{13-3.25\implies 9.75}[/tex]
simplify (16x^8 y^64)^1/4
Answer:
(2x^2)(y^16)
Step-by-step explanation:
What is the range of the function f(x) = 1/2 square root of x ? Anyone
Answer:
The range is f(x) ≥ 0
Step-by-step explanation:
The range of the function is defined as the set of values of the dependent variable for which the function is defined.
Here the function f(x) = 1/2 √x is defined for all values of x which are greater than or equal to zero or we can say all non-negative real numbers.
So, the range is f(x) ≥ 0
Final answer:
The range of the function f(x) = ½√x is all real numbers greater than or equal to 0, which is written in interval notation as [0, ∞).
Explanation:
The range of a function is the set of all possible output values it can produce. For the function f(x) = ½√x, the domain (input values) must be non-negative because we cannot take the square root of a negative number in the real number system. Since the smallest non-negative number is 0 and the value of the function at x=0 is f(0) = ½√0 = 0, the function starts at 0. The square root function increases as its input increases; thus, for any positive value of x, you get a positive value for f(x). Moreover, as x approaches infinity, the output of the function also grows without any upper bound, although it does so slower than the increase in x.
Therefore, the range of the function f(x) = ½√x is all real numbers greater than or equal to 0, which can be written in interval notation as [0, ∞).
If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years?
Use the continuous compound interest formula A = Pert.
Answer:
[tex]\$1,598.23[/tex]
Step-by-step explanation:
we know that
The formula to calculate continuously compounded interest is equal to
[tex]A=P(e)^{rt}[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
e is the mathematical constant number
we have
[tex]t=7\ years\\ P=\$740\\ r=0.11[/tex]
substitute in the formula above
[tex]A=\$740(e)^{0.11*7}[/tex]
[tex]A=\$1,598.23[/tex]
which of the following points are solutions to the system of inequalities shown below?
check all that apply
y>6x+7
y<6x+9
answers:
a. (3,26)
b. (-4,32)
c. (3,25)
d. (4,33)
Answer:
see below
Step-by-step explanation:
y > 6x + 7
y < 6x + 9
check one by one
A. (3, 26)
26 > 6(3) + 7→ 26 > 25 yes
26 < 6(3) + 9→ 26 < 27 yes
B. (-4, 32)
32 > 6(-4) + 7→ 32 > -17 yes
32 < 6(-4) + 9→ 32 < -15 no
C. (3, 25)
25 > 6(3) + 7→ 25 > 25 no
25 < 6(3) + 9→ 25 < 27 yes
DB. (4, 33)
33 > 6(4) + 7→ 33 > 31 yes
33 < 6(4) + 9→ 33 < 33 no
Final answer:
Points a (3, 26) and b (-4, 32) are solutions to the system of inequalities y>6x+7 and y<6x+9. Points c (3, 25) and d (4, 33) do not satisfy both inequalities, so they are not solutions.
Explanation:
To determine which points are solutions to the given system of inequalities, y > 6x + 7 and y < 6x + 9, we need to check if they satisfy both inequalities:
Point a (3, 26): 26 > 6(3) + 7 and 26 < 6(3) + 9, which simplifies to 26 > 25 and 26 < 27. Both are true, so point a is a solution.
Point b (-4, 32): 32 > 6(-4) + 7 and 32 < 6(-4) + 9, which simplifies to 32 > -17 and 32 < -15. Both are true, so point b is also a solution.
Point c (3, 25): 25 > 6(3) + 7 and 25 < 6(3) + 9, which simplifies to 25 > 25 and 25 < 27. The first inequality is not true (it is equal, not greater), so point c is not a solution.
Point d (4, 33): 33 > 6(4) + 7 and 33 < 6(4) + 9, which simplifies to 33 > 31 and 33 < 33. Similar to point c, the second inequality is not true (it is equal, not less), so point d is not a solution.
Points a and b satisfy both inequalities and are correct solutions to the system.
in algebra to you do the numbers in parentheses first
Answer:
yes you start solving whats in the parentheses
Step-by-step explanation:
In algebra you use the order of operations or PEMDAS
PEMDAS is a way to help you remember what you solve first
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
What is the measure of VXZ?
Answer:
34 degrees
Step-by-step explanation:
The measure of the angle ∠VXZ will be 34°. Then the correct option is C.
What is an angle?The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.
The measure of the angle ∠VXZ will be given as,
∠VXZ = 1/2(93 – 25)
∠VXZ = 1/2(68)
∠VXZ = 34°
Then the correct option is C.
More about the angled link is given below.
https://brainly.com/question/15767203
#SPJ2
Triangle ABC is translated 2 units right and 5 units down to form triangle A′B′C′. This triangle is then translated 5 units right and 4 units up to form triangle A″B″C″. If vertex A is at (-4, 2), what are the coordinates of vertex A″? A. (3, -1) B. (3, 1) C. (-4, -2) D. (2, -4) E. (-11, 1)
Answer:
B
Step-by-step explanation:
So, for this problem, it is only asking for vertex A, so you only have to apply the transformations to one point (unless you want to find out where the other points are at).
Vertex A is at (-4,2).
The triangle is first translated 2 units right and 5 units down.
So to find the coordinate of that you have to understand that is you translate something right or left, the x value will change. And if it's up or down, the y value will change. If you are going right or up, the amount it's moved will be added. And left or down will be subtracted.
-4+2=-2 (so the new x-value will be -2)
2-5=-3 (so the new y-value will be -3)
Thus vertex A' is (-2,-3).
Now for the next transformation.
(-2,-3) is moved 5 units right and 4 units up.
-2+5=3 (so x-value will be 3)
-3+4=1 (so the y-value will be 1)
SO, the new coordinate of vertex A" is...
(3,1)! aka B
(Also, you can just illustrate this on a graph but i'm showing it to you this way because when you get more advanced the amount it is being translated will be much higher.)
Answer: The answer is B
rule y=2x
complete the table
x|y
-----
9| ?
? |10
1 | ?
A line is defined by the equation y = 2/3 x - 6 The line passes through a point whose y-coordinate is 0. What is the x-coordinate of this point?
Answer:
x = 9
Step-by-step explanation:
Use the equation of the line, and let y = 0. Then solve for x.
y = 2/3 x - 6
Let y = 0:
0 = 2/3 x - 6
Add 6 to both sides.
6 = 2/3 x
Multiply both sides by 3/2.
3/2 * 6 = x
x = 9
Find the LCM of 24,36
Answer:
LCM of 24, 36 = 72
Step-by-step explanation:
24 = 24, 48, 72, 96
36 = 36, 72, 109
Answer:
The LCM of 24 and 36 = 72
Step-by-step explanation:
Find and list multiples of each number until the first common multiple is found. This is the lowest common multiple.
Multiples of 24:
24, 48, (72), 96, 120
Multiples of 36:
36, (72), 108, 144
Hope this helped!
A cylinder has a volume of 288x cubic meters and a height of 9 meters. What is the area of the base?
Answer: area of the base = 32 m²
Step-by-step explanation:
Cylinder volume is the product of area of the base by height.
Then, area of the base = cylinder volume/height = 288m³/9m = 32 m²
Answer: area of the base = 32 m²
[tex]\textit{\textbf{Spymore}}[/tex]
Simplify the following in the form of a +b √c
1- √5/1+√5
Answer:
see explanation
Step-by-step explanation:
Given
[tex]\frac{1-\sqrt{5} }{1+\sqrt{5} }[/tex]
Multiply the numerator and denominator by the conjugate of the denominator
The conjugate of 1 + [tex]\sqrt{5}[/tex] is 1 - [tex]\sqrt{5}[/tex], hence
[tex]\frac{(1-\sqrt{5})(1-\sqrt{5}) }{(1+\sqrt{5})(1-\sqrt{5}) }[/tex]
Expand numerator/ denominator
= [tex]\frac{1-2\sqrt{5}+5 }{1-5}[/tex]
= [tex]\frac{6-2\sqrt{5} }{-4}[/tex]
= [tex]\frac{6}{-4}[/tex] + [tex]\frac{-2\sqrt{5} }{-4}[/tex]
= - [tex]\frac{3}{2}[/tex] + [tex]\frac{1}{2}[/tex] [tex]\sqrt{5}[/tex]
Answer:
-3/2 + (1/2)*sqrt(5)
Note: a=-3/2 , b=1/2 , c=5
Step-by-step explanation:
I think this is meant to be written as (1-sqrt(5))/(1+sqrt(5)).
First step: Multiply top and bottom by the conjugate of the bottom which is 1-sqrt(5).
When you multiply conjugates, you do have to do the whole foil thing... just do first and last because the others will cancel.
So what I'm saying is when multiply (1+sqrt(5))(1-sqrt(5)) you will get 1-5=-4.
Second step: Multiply top out... you have to do the whole foil here because you aren't multiplying conjugates. So (1-sqrt(5))(1-sqrt(5))=1-sqrt(5)-sqrt(5)+5=
1-2sqrt(5)+5=6-2sqrt(5).
Third step: Second step/first step =(6-2sqrt(5))/-4
Fourth step: Separate fraction 6/-4 - 2sqrt(5)/-4
Fifth step: Simplify each fraction: -3/2 + (1/2)*sqrt(5)
Sixth step: If you compare the form you want it in to the form I wrote my answer in, then you should see that a=-3/2 , b=1/2 , c=5
Pamela has a 30-year, 5.75% mortgage on her $250,000 home. She has been
paying on it for 5 years, and has recently hit some financial trouble. If her
lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%,
what will her new payment be for the remainder of the loan?
Answer:
$1424.10
Step-by-step explanation:
APEX is obnoxious, I understand.
Answer:1424.10
Step-by-step explanation:
Please help me ......:(
Answer: B) F(x) = √x and G(x) = 3x + 2
Step-by-step explanation:
The composite function G(F(x)) is when you replace every x-value in the G(x) function with the F(x) function.
[tex]A)\ G(3x+2) = \sqrt{3x+2}\\\\B)\ G(\sqrt{x})=3(\sqrt{x})+2\quad =3\sqrt{x}+2\\\\C)\ G(\sqrt{x}+2) = 3\quad \text{there are no x-values in the G(x) function to replace}\\\\D) G(3\sqrt{x})=2\quad \text{there are no x-values in the G(x) function to replace}[/tex]
The only one that matches G(F(x)) = 3√x + 2 is OPTION B
Solve the equation for b: A= (1/2)(b)(h)
Answer:
2A/h = b
Step-by-step explanation:
A= (1/2)(b)(h)
Multiply each side by 2
2A = 2*1/2 *b*h
2A = bh
Divide each side by h
2A/h = bh/h
2A/h = b
Step-by-step explanation:
all work is pictured and shown
If f(x) = 3x2 - 4 and g(x) = x+2, find (f - g)(x).
Answer:
3x^2-x-6
Step-by-step explanation:
f-g means you are going to do (3x^2-4)-(x+2)
3x^2-4-x-2
Combine like terms
3x^2-x-6
Answer:
[tex](f-g) (x) = 3x ^ 2- x - 6[/tex]
Step-by-step explanation:
We have the following functions
[tex]f (x) = 3x ^ 2-4[/tex]
[tex]g (x) = x + 2[/tex]
To find [tex](f-g) (x)[/tex] we must subtract the function f(x) with the function g (x)
Then we perform the following operation
[tex](f-g) (x) = 3x ^ 2-4- (x + 2)[/tex]
[tex](f-g) (x) = 3x ^ 2-4- x - 2[/tex]
[tex](f-g) (x) = 3x ^ 2- x - 2-4[/tex]
Finally we have that:
[tex](f-g) (x) = 3x ^ 2- x - 6[/tex]
5x sqaure plus 25 divided by 9
Answer:
5 • (9x2 + 5)
———————
9
Step-by-step explanation:
Step 1 :
25
Simplify ——
9
Equation at the end of step 1 :
25
(5 • (x2)) + ——
9
Step 2 :
Equation at the end of step 2 :
25
5x2 + ——
9
Step 3 :
Rewriting the whole as an Equivalent Fraction :
3.1 Adding a fraction to a whole
Rewrite the whole as a fraction using 9 as the denominator :
5x2 5x2 • 9
5x2 = ——— = ———————
1 9
Hope this helps! Please mark brainliest!
What is the following sum in simplest form? square root 8 + 3 square root 2 + square root 32
Answer:
9[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplify each radical before summing
[tex]\sqrt{8}[/tex] = [tex]\sqrt{4(2)}[/tex] = 2[tex]\sqrt{2}[/tex]
3[tex]\sqrt{2}[/tex] is in simplified form
[tex]\sqrt{32}[/tex] = [tex]\sqrt{16(2)}[/tex] = 4[tex]\sqrt{2}[/tex]
Hence
2[tex]\sqrt{2}[/tex] + 3[tex]\sqrt{2}[/tex] + 4[tex]\sqrt{2}[/tex] = 9[tex]\sqrt{2}[/tex]
can someone please help me with this?
Answer:
[tex]2x^2 - 8x + 6[/tex]
Step-by-step explanation:
Use the FOIL method of multiplying binomials.
First term in each binomial: [tex]x * 2x = 2x^2[/tex]
Outside terms: [tex]x * -2 = -2x[/tex]
Inside terms: [tex]-3 * 2x = -6x[/tex]
Last term in each binomial: [tex]-3 * -2 = 6[/tex]
Now, add them all together. [tex]2x^2 - 2x - 6x + 6[/tex]
Simplified, this equals [tex]2x^2 - 8x + 6[/tex], which is the answer.
What’s the slope 3y=15-6x
Answer:
-2
Step-by-step explanation:
Isolate the variable y. Note the equal sign, what you do to one side, you do to the other. Divide 3 from both sides:
(3y)/3 = (15 - 6x)/3
y = (15 - 6x)/3
y = 5 - 2x
Note the equation:
y = mx + b
m = slope
b = y-intercept
x & y = the point (x , y)
Note that the slope is directly next to x. -2 is your answer.
~
For this case we have by definition, that the equation of a line in the slope-intersection form is given by:
[tex]y = mx + b[/tex]
Where:
m: It's the slope
b: It is the cutoff point with the y axis
We have the following equation:
[tex]3y = 15-6x\\y = \frac {15} {3} - \frac {6x} {3}\\y = 5-2x\\y = -2x + 5[/tex]
So we have to:
[tex]m = -2[/tex]
Answer:
The slope is -2
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
For the right triangle shown, the lengths of two sides are given. Find the third side. Leave your answer in simplified, radical form.
a = 5, b = 10, c =
Answer:
5 sqrt(5) =c
Step-by-step explanation:
We can use the Pythagorean theorem to find the length of the hypotenuse
a^2 + b^2 = c^2 since this is a right triangle
5^2 + 10^2 = c^2
25+100 = c^2
125 = c^2
Take the square root of each side
sqrt(125) = sqrt(c^2)
sqrt(25*5) = c
sqrt(25) sqrt(5) = c
5 sqrt(5) =c
Alright, in a right-angled triangle, the lengths of the three sides are related by the Pythagorean Theorem, which states that the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
This can be written as:
c² = a² + b²
In the question you provided, you've given that side a is 5 and side b is 10, and you'd like to find side c, the hypotenuse.
Following the Pythagorean Theorem :
c² = a² + b² = 5² + 10² = 25 + 100 = 125
Now we need to find the length of side c by taking the square root of c²:
c = √125
This can be further simplified by recognizing that 125 is equal to 25 * 5, and the square root of 25 is 5.
c = √(25 * 5) = √25 * √5 = 5√5
Therefore, the length of side c in its simplified radical form is:
c = 5√5
That would be the value of the hypotenuse of the right triangle with side lengths 5 and 10.
In simplest radical form, what are the solutions to the quadratic equation 6 = x2 – 10x?
Answer:
[tex]x = 5+\sqrt{31}\,\, and\,\, x=5-\sqrt{31}[/tex]
Step-by-step explanation:
We need to solve the quadratic equation
6 = x^2 -10x
Rearranging we get,
x^2-10x-6=0
Using quadratic formula to solve the quadratic equation
[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
a= 1, b =-10 and c=6
Putting values in the quadratic formula
[tex]x=\frac{-(-10)\pm\sqrt{(-10)^2-4(1)(-6)}}{2(1)}\\x=\frac{10\pm\sqrt{100+24}}{2}\\x=\frac{10\pm\sqrt{124}}{2}\\x=\frac{10\pm\sqrt{2*2*31}}{2}\\x=\frac{10\pm\sqrt{2^2*31}}{2}\\x=\frac{10\pm2\sqrt{31}}{2}\\x = 5\pm\sqrt{31}[/tex]
So, [tex]x=5+\sqrt{31}\,\, and\,\, x=5-\sqrt{31}[/tex]
Answer:
The solutions are:
x1= 5 +√31
x2= 5 -√31
Step-by-step explanation:
We have 6=x^2-10x
Balance the equation by adding the same constant to each side
x^2-10x+25=6+25
x^2-10x+25=31
Rewrite as perfect square,
(x-25)^2=31
Taking square root at both sides
√(x-5)^2 = √31
x-5 = (+/-)√31
x1= 5 +√31
x2= 5 -√31
Therefore the solutions are x1= 5 +√31 , x2= 5 -√31
which of the following is a three dimensional solid has a circle as its cross section?
cone
pyramid
prism
cone
Answer:
A cone is a three dimensional solid with a circle at its cross section
Answer:
The answer is cone.
Step-by-step explanation:
A cone is a three dimensional figure, whose cross section parallel to its base, gives a circle because the base of the cone is a circle.
A cross section is defined as the slicing of a three dimensional figure to get a two dimensional figure.
Here, cone is a three dimensional figure and circle is a two dimensional figure.
So, the answer is cone.