Explanation is[tex]^{}[/tex] in a file
bit.[tex]^{}[/tex]ly/3gVQKw3
Answer:
x = -2, x = 4
Step-by-step explanation:
(-3x-6)(-3x+12)
foil method:
9x² - 18x - 72
9(x² - 2x - 8) = 0
(x+2)(x-4) = 0
x = -2 and x = 4
Is the relationship linear, exponential,or neither?
Answer:
neither
Step-by-step explanation:
it is neither because there is not a consistent pattern for linear, and there is not a consistent ratio so it also cannot be exponential
The vertex angle of an isosceles triangle is three times the measure of either base angle. Find the area if the measure of the congruent sides are 14 in
Answer:
[tex]Area = 93.21in^2[/tex]
Step-by-step explanation:
Given
[tex]\theta \to[/tex] vertex angle
[tex]\alpha \to[/tex] base angle
[tex]\theta = 3\alpha[/tex]
[tex]l = 14in[/tex] -- congruent sides
Required
The area of the triangle
First, calculate the angles
[tex]\theta + \alpha + \alpha = 180^o[/tex] ----- angles in an isosceles triangle
Substitute [tex]\theta = 3\alpha[/tex]
[tex]3\alpha + \alpha + \alpha = 180^o[/tex]
[tex]5\alpha = 180^o[/tex]
Divide both sides by 5
[tex]\alpha = 36^o[/tex]
Recall that: [tex]\theta = 3\alpha[/tex]
[tex]\theta = 3 * 36^o[/tex]
[tex]\theta = 108^o[/tex]
The area is then calculated as:
[tex]Area = \frac{1}{2}l^2 \sin(\theta)[/tex]
[tex]Area = \frac{1}{2}*14^2 \sin(108^o)[/tex]
[tex]Area = \frac{1}{2}*196 *0.9511[/tex]
[tex]Area = 93.21in^2[/tex]
A 30-foot ladder is set against the side of a house so that it reaches up 24 feet. If Elizabeth grabs the ladder at its base and pulls it 3 feet farther from the house, how far up the side of the house will the ladder reach now? (The answer is not 21 ft.) Round to the nearest tenth of a foot.
Use the Pythagorean theorem to calculate the distance from the wall the ladder originally is:
x = sqrt(30^2 - 24^2)
x = sqrt(900-576)
x = sqrt(324)
x = 18
The ladder was originally 18 feet from the wall. Moving the ladder 3 feet further away makes the new distance 18 + 3 = 21 feet.
Now use the Pythagorean theorem again to find the new height of the ladder.
Height = sqrt(30^2 - 21^2)
Height = sqrt(900 - 441)
Height = sqrt(459)
Height = 21.42
Rounded to the nearest tenth = 21.4 feet.
Answer:89
Step-by-step explanation:
23+9
Juan necesita para su coche verde 3dl y 75 ml de aceites,y para su coche azul 13cl y 5ml.¿Cuantos hl necesita en total? ¿Tendrá suficiente con una lata de medio litro?
Answer:
1. Juan necesita 0,0051 hl en total.
2. Juan no tendrá suficiente con una lata de medio litro.
Step-by-step explanation:
1. Para calcular el volumen total en hl, primero debemos convertir todas las unidades a hl.
Para el coche verde:
[tex] V_{1} = 3 dl*\frac{1 hl}{1000 dl} = 0,003 hl [/tex]
[tex] V_{2} = 75 ml*\frac{1 hl}{100000 ml} = 0,00075 hl [/tex]
Para el coche azul:
[tex] V_{3} = 13 cl*\frac{1 hl}{10000 cl} = 0,0013 hl [/tex]
[tex] V_{4} = 5 ml*\frac{1 hl}{100000 dl} = 0,00005 hl [/tex]
Ahora, para encontrar el volumen total debemos sumar todos los volúmenes anteriores:
[tex] V_{T} = V_{1} + V_{2} + V_{3} + V_{4} = 0,003 hl + 0,00075 hl + 0,0013 hl + 0,00005 hl = 0,0051 hl [/tex]
Por lo tanto, Juan necesita 0,0051 hl en total.
2. Luego, para saber si tendrá suficiente con una lata de medio litro, debemos convertir el volumen total de hl a l:
[tex] V_{T} = 0,0051 hl*\frac{100 l}{1 hl} = 0,51 l [/tex]
Entonces, dado que el volumen total es 0,51 litros Juan no tendrá suficiente con una lata de medio litro porque necesita cubrir 0,01 litros más.
Espero que te sea de utilidad!
Rita buys 8 bottles of water. Each bottle contains 1.8 L of water.
Rita says she bought a total of 14.4 L of water.
Use estimation to show that her answer is reasonable.
Drag the numbers into the boxes to complete the number sentence.
_____x______= L
1 2 8 15 16 20 120 160
Answer:
Equation: 2 x 8 = 16
Step-by-step explanation:
1.8 ≈ 2
8 ≈ 8
2 x 8 = L
L = 16
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Someone help please, I’ll give you brainlist!
Answer:
it is a 1
Step-by-step explanation:
Last one please help my brain can’t take this
Answer:
first option 7.331 × 10^6
Answer:
7.331×10E6
( E means the exponent just letting u know :)
Please help!
Find the amount of empty space within a cylinder containing three solid spheres, where each sphere has a radius of 3 cm. (Volume of a sphere 4 000 3 cm.
Answer:
Step-by-step explanation:
cylinder's height=3×(diameter of sphere)=3×6=18 cm
radius of cylinder=3 cm
volume of cylinder=π r²h=π(3)²×18=162 π cm³
volume of sphere=4/3 π(3)³=36 π cm³
reqd. empty space=162 π-3×36π=54 πcm³
Drag each situation to show whether it can be modeled using a linear or an exponential function. If the situation cannot be modeled with either function type, drag it into the container labeled Neither.
Answer: the savings account one is linear, the enrollment of students is linear, the investment is exponential as well as the cars value, the speed of the truck is neither (not fully sure) and the temperature outside is linear
Step-by-step explanation: linear means in a straight line without curves meaning if the question mentions percentages it’s automatically not linear as percentages tend to curve. Exponential means it curves which has direct connections to percentages and getting multiplied by
Hope this helps you
A certain television is advertised as a 38-inch TV (the diagonal length). If the height
of the TV is 25 inches, how wide is the TV? Round to the nearest tenth of an inch.
Answer: 28.6
Step-by-step explanation:
The area of a circle is 153.86 square meters. What is the diameter of the circle? Use 3.14 for π
Answer: √ 4A /π or 13.996450848446
Step-by-step explanation:
D = 2R
C = 2πR
A = πR2
where:
R: Radius
D: Diameter
C: Circumference
A: Area
π: 3.14159
A jar is full of gumballs and Hershey’s kisses. 2/3 of the jar is gumballs. 3/5 of these gumballs are red. What fraction of the whole jar are the red gumballs?
Answer:
[tex]\frac{2}{5}[/tex] of the jar contains red gumballs
Step-by-step explanation:
Hi there!
What we know:
[tex]\frac{2}{3}[/tex] of the jar is gumballs[tex]\frac{3}{5}[/tex] of the gumballs are redTo find the fraction of red gumballs in the whole jar, multiply the fractions:
Red gumball fraction × Total gumball fraction
[tex]= \frac{3}{5}*\frac{2}{3}\\= \frac{2}{5}[/tex]
Therefore, red gumballs contain [tex]\frac{2}{5}[/tex] of the whole jar.
I hope this helps!
Can some one help me with this question its hard :( down below ill give brainliest and plz explain
Answer:
1 is the answer
Step-by-step explanation:
10^0 on the calculator is 1
please help with (Solving Rational Equations and Inequalities)
Answer:
1. x = -45
2. 1 +- squareroot 17 over 2
Step-by-step explanation:
note* ^ plus minus
The equation of the axis for the following graph is?
Step-by-step explanation:
The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD? (4 points) negative 1 over 2 −2 2 1 over 2
Answer:
answer 1/2
Step-by-step explanation:
y-3=-2(x-4)
y-3=-2x+8
y=-2x+11
y=mx+c
m= slope which is -2
because it perpendicular It became 1/2
Let's evaluate 3x + 4 when x=5
First, I need to substitute 5 in for x
3( ) + 4
Put the steps for Evaluating an Expression in order: Evaluate x-3 when x=9?
Can you evaluate 3a + 4b when a=6 and b=5?
Substitute your values for a and b
3( ) + 4( )
Evaluate the following expression when a= 3 and b = 6
6a+3b
Find the derivative of f(x) =( -7/x) at x = -3.
pls help !!
Answer:
[tex]\displaystyle f'(-3) = \frac{7}{9}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightCalculus
Derivatives
Derivative Notation
Derivative of a constant is a 0
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Derivative Rule [Quotient Rule]: [tex]\displaystyle \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle f(x) = \frac{-7}{x}[/tex]
[tex]\displaystyle x = -3[/tex]
Step 2: Differentiate
Quotient Rule: [tex]\displaystyle f'(x) = \frac{\frac{d}{dx}[7]x - \frac{d}{dx}[x](-7)}{x^2}[/tex]Basic Power Rule: [tex]\displaystyle f'(x) = \frac{(0)x - x^{1 - 1}(-7)}{x^2}[/tex]Simplify: [tex]\displaystyle f'(x) = \frac{(0)x - x^0(-7)}{x^2}[/tex]Simplify: [tex]\displaystyle f'(x) = \frac{(0)x - 1(-7)}{x^2}[/tex]Multiply: [tex]\displaystyle f'(x) = \frac{0 + 7}{x^2}[/tex]Add: [tex]\displaystyle f'(x) = \frac{7}{x^2}[/tex]Step 3: Solve
Substitute in x [Derivative]: [tex]\displaystyle f'(-3) = \frac{7}{(-3)^2}[/tex]Evaluate exponents: [tex]\displaystyle f'(-3) = \frac{7}{9}[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Derivatives
Book: College Calculus 10e
What is the domain of y = x + 1?
Answer:
[0, infinity
Step-by-step explanation:
It's essential to type "sqrt(x)" or "√x," which are vastly different from the linear function y = x + 1.
The domain of the square root function is [0, infinity).
Adding 1 to this merely shifts the entire graph up 1 unit.
So the domain of y = √x + 1 is the same as before: [0, infinity
solve: 7-z what is the answer to this question.................... . . . .. . . . .. .
Answer:
7 - z = 0
- z + 7 = 0
- z = - 7
z = 7
Thus, The answer is 7
-TheUnknownScientist
I do not understand this assignment at all..I've been stuck on it for a long time and it's due very soon.
could someone please solve or explain these ,, u don't have to do both of them | I just need an explanation so I can solve the other 7
[tex]\text{State Income Tax Rate: }6.65\%, \\\text{Deduction: }\$7,702.03[/tex]
Answer:
State income tax: [tex]6.65\%[/tex]
Step-by-step explanation:
Based on the interface, it seems like you have chosen lawyer as a career with the given salary of $115,820.
The chart given for state income tax is broken into two categories:
$21,400-$80,650 => 6.45%
$80,651-$215,400 => 6.65%
Since the chosen career's salary is $115,820, the career falls into the second range of 6.65% state income tax.
The deduction is simply the amount of money taxed. For a 6.65% state income tax, the deduction can be found from:
[tex]115,820\cdot 0.0665=\boxed{\$7,702.03}[/tex]
Can someone pleaseeee help and if you’re correct i’ll give brainliest
Answer:
C, the binder and the stapler do because 9+5=14
Step-by-step explanation:
Answer:
The binder and the stapler do
Pls mark Brainliest :)
Step-by-step explanation:
write an email about a game you played recently
football waz good and ther was funi monke that go "haha funi monke go stinky poopoo hahahahahhaha".
What is the correct Algebraic Inequality for the given graph?
plsss help
Answer:
X < 9
The hallow circle means just greater than or less than
The numberline is pointing downwards showing that 9 is greater than x(unknown value)
The point is also on 9
The table shows the total profits earned from magazine sales.
select a function that models this situation.
O A.) y = 24x
O B.) y = 10x + 28
O C.) y = 14x + 20
O D.) y = 15x + 10
Mystique's favorite part of a pizza is the crust. Which measurement is the BEST for determining how much crust is on a pizza?
A) The circumference
B) The area
Jasmine, Georgia, and Olivia are in boats on a lake. Their relative locations are shown in the diagram.
What is the distance from Georgia's boat to Olivia's boat?
Enter your answer in the box. Round your final answer to the nearest whole number.
ft
Answer:
52ft
Step-by-step explanation:
In the accompanying diagram of AABC, a right angle is at C,
AB = 8, and AC = 4. Find BC.
Answer:
64
Step-by-step explanation:
Dababy approved.
Help me
3.9x0.5+4 5/6 / 3 3/7
Whats the value of b?
Answer:
b = 5
Step-by-step explanation:
This triangle is a 30 - 60 - 90 special right triangle
As you can see in the image provided below the longer leg is equal to the short leg times √3
This means that the short leg is equal to the long leg divided by √3
Thus, b = [tex]\frac{5\sqrt{3} }{\sqrt{3} }[/tex] which is equivalent to 5