Use the graph of y=2x^2+3x+4 to explain why we
can't solve the equation: 2x^2+3x+4=0.
Answers
Answer:
see explanation
Step-by-step explanation:
The solution to the equation
2x² + 3x + 4 = 0
Is where the graph crosses the x- axis ( that is y = 0 )
However, the graph does not intersect the x- axis , therefore the equation has no real solutions.
Related Questions
A square has a perimeter of 49 inches. What is the area of the square?
Answers
Answer:
150.06 in²Step-by-step explanation:
Hopes this helps. Mark as brainlest plz!Find the derivative of
[tex] y = \sqrt[3]{x} [/tex]
at the point where x = 27.
Answers
Answer:
[tex]\displaystyle y'(27) = \frac{1}{27}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Exponential Rule [Root Rewrite]: [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]Exponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]Calculus
Derivatives
Derivative Notation
Basic Power Rule
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Step-by-step explanation:
Step 1: Define
y = ∛x
x = 27
Step 2: Differentiate
[Function] Rewrite [Exponential Rule - Root Rewrite]: [tex]\displaystyle y = x^{\frac{1}{3}}[/tex]Basic Power Rule: [tex]\displaystyle y' = \frac{1}{3}x^{\frac{1}{3} - 1}[/tex]Simplify: [tex]\displaystyle y' = \frac{1}{3}x^{-\frac{2}{3}}[/tex]Rewrite [Exponential Rule - Rewrite]: [tex]\displaystyle y' = \frac{1}{3x^{\frac{2}{3}}}[/tex]Step 3: Solve
Substitute in x [Derivative]: [tex]\displaystyle y'(27) = \frac{1}{3(27)^{\frac{2}{3}}}[/tex]Evaluate exponents: [tex]\displaystyle y'(27) = \frac{1}{3(9)}[/tex]Multiply: [tex]\displaystyle y'(27) = \frac{1}{27}[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Derivatives
Book: College Calculus 10e
• Use whichever method you prefer (the area model or the distributive property)
Answers
Answer: 2a^2+22a+−1
Step-by-step explanation:
Let's simplify step-by-step.
2a^2−5a+(9)(3)a−1
=2a^2+−5a+27a+−1
Combine Like Terms:
=2a^2+−5a+27a+−1
=(2a^2)+(−5a+27a)+(−1)
=2a^2+22a+−1
solve-2 1/3 - (-5)
need help asap
Answers
9514 1404 393
Answer:
2 2/3
Step-by-step explanation:
-2 1/3 - (-5)
= -2 1/3 + 5 . . . . . subtraction is the same as adding the opposite
= (5 -2) -1/3 . . . . . -2 1/3 = (-2) +(-1/3)
= 3 -1/3 . . . . . . . . . deal with the integer and fractional parts separately
= 2 2/3
_____
If you like, you can convert the numbers to improper fractions.
-2 1/3 +5 = (-7/3 +15/3) = 8/3 = 2 2/3
find the value of q in the following system so that the solution to the system is
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Answer:
where is the chart?????
A car travels a distance of 500 km in a time of 5 hours.
What is the car's average speed?
Answers
Answer:
100km/h
Step-by-step explanation:
gl
A regular polygon is a polygon with blank sides and angles
Answers
What is the unknown angle measure in this pattern?
Answers
Answer:
125
Step-by-step explanation:
The two angles are supplementary which means their sum is equal to 180 degrees
180 - 55 = 125 is the measure of the unknown angle.
Can anyone help me with this problem by factoring and list the steps please
Answers
Answer:
[tex]m=2, m=0[/tex]
-ˋˏ✄┈┈┈┈┈┈┈┈┈┈┈┈┈
[tex]20m^2-40m=0[/tex]
Use quadratic formula:-
᠃ ⚘᠂ ⚘ ˚ ⚘ ᠂ ⚘ ᠃
[tex]m_1,_2=\frac{-(-40) -+\sqrt{x} (-40)^2-4*20*0}{2*20}[/tex]
[tex]\sqrt{(-40)^2-4*20*0}=40[/tex]
[tex]m_1,_2=\frac{-(-40)-,+40}{2*20}[/tex]
[tex]m_1=\frac{-(-40)+40}{2*20},m_1=\frac{-(-40)-40}{2*20}[/tex]
[tex]m=\frac{-(-40)+40}{2*20}:2[/tex]
[tex]m=\frac{-(-40)-40}{2*20}:0[/tex]
[tex]m=2, m=0[/tex]
˱ ┈ ┈ ┈ ┈ ˲
hope it helps...
have a great day!!
At a police checkpoint for drunk drivers, some cars are stopped at random; many others are not stopped. The cars that are stopped may be considered a _____ of all the cars that pass by the checkpoint.
Answers
Answer:
sample
or spot check
Step-by-step explanation:
there are quite a number of different terms that can be used depending on the specific scientific field you are working in.
but "sample" should be the most common one for a random selection of a subset of the whole set.
what is the equivalent to 178 and 739
Answers
The answer is 917
(Hope this helps you! :) )
Answer this question to get marked as brainliest!!!!!
( Which of the following does NOT have the same value as 15^6 )
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(15^3)^3
the rest are equal to 15^6:)
what is the measure, in degree, of angle z ?
Answers
Answer:
55°
Step-by-step explanation:
if the middle is straight, then x+35°=90°
help asap pleaseeeee :))))))
Answers
Answer:
Step-by-step explanation:
Which relation is a function?
Do Not Post A Link.
Answers
Jay organised a large wedding and 1/3 of them chose beef 5/12 of them chose Chicken and 69 of them chose vegetarian so how many guest were at the wedding ?
Answers
Answer:
276 Guests
Step-by-step explanation:
Calculation to determine how many guest were at the wedding
Guests that choose beef =1/3
Guests that choose chicken= 5/12
Guests that choose vegetarian=69
Now let calculate the how many guest were at the wedding
Let x represent the numbers of guest that were present at the wedding
Hence,
x/3 + 5x/12 + 69 = x
9x/12 + 69 = x
12x/12 - 9x/12 = 69
3x/12 = 69
x/4 = 69
x=69*4
x = 276 guests
Therefore the numbers of guests that were at the wedding is 276
Answer: 276
Step-by-step explanation: Let “x” be the number of guest.
1/3 x +5/12x + 69 = x Simplifying and solving for x … where x = 276
1/3(276) + 5/12(276) + 69 = 276
92 + 115 + 69 = 276
Write an equation of the line with the given slope and y-intercept slope = 6/5 ; y-intercept = 1
Answers
Step-by-step explanation:
☄ [tex] \underline{ \underline{ \large{ \tt{G\: I \: V\: E \: N}}}} : [/tex]
Slope ( m ) = [tex] \frac{6}{5} [/tex] & y - intercept ( c ) = 1☼ [tex] \underline{ \underline{ \large{ \tt{T\: O \: \: F \: I\: N \: D}}} }: [/tex]
Equation of the line with the given slope and y-intercept☃ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L \: U\: T \: I\: O\: N}}}} : [/tex]
☂ Using slope intercept form of equation of straight line , we get :
❆ [tex] \large{ \sf{y = mx + c}}[/tex]
~Plug the known values !
⤑ [tex] \large\sf{y = \frac{6}{5} x + 1}[/tex]
⤑ [tex] \large{ \sf{y = \frac{6x + 5}{5}}} [/tex]
⤑ [tex] \large{ \sf{5y = 6x + 5}}[/tex]
⤑ [tex] \large{ \tt{6x + 5 = 5y}}[/tex]
⤑ [tex] \boxed{ \large{ \sf{6x - 5y + 5 = 0}}}[/tex]
⚥ [tex] \boxed{ \boxed{ \large{ \tt{Our \: Final \:Answer : \underline{ \boxed{ \tt{6x - 5y + 5 = 0}}}}}}}[/tex]
☏ [tex] \tt{THINGS \: TO \: REMEMBER} : [/tex]
If the straight line passes through origin , then c = 0. The equation becomes y = mx. The equation of straight line that passes through origin is y = mx.✄ STUDY TIP
Study with Ninja - like focus : This means no TV in the background. No alerts popping up on your phone. No multitasking. When you hyper-focus for 20 minutes , you can accomplish more than if you multi-task while studying for 60 minutes. ✔♪ Hope I helped! ツ
♡ Have a wonderful day / night !
♕ [tex] \underbrace{ \overbrace{ \mathfrak{Carry \: On \: Learning}}}[/tex] ✎
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Evaluate (m4 + 5) – n
(m+ + 5) – n3 if m = -2 and n = -4.
Answers
Answer:
69
Step-by-step explanation:
PLEASEEE HELPPP
1- Which equation best describes the situation below?5 less than a number 15
2- which equations has w=8 as the solution?(can be more than one answer)
3-what is the area or this parallelogram?
Answers
Answer:
1) x-5=15
2) both 8w=64 & 48÷w=6
3) 28 square units
The equation y = (-16t – 2)(t-1) represents the height in feet of a beach ball thrown by a child as a function of time, `t`, in seconds.
from What height is the beach ball thrown? explain or show your reasoning
Answers
2 ft
Step-by-step explanation:
The height from which the beach ball was thrown happens when t = 0. So setting t = 0 to get y, we get
y = [-16(0) - 2](0 - 1)
= (-2)(-1)
= 2 ft
Therefore, the ball was thrown from a height of 2 ft.
Write the number using scientific notation:
23,000
Answers
The scientific notation representation of 23,000 is 2.3 x 10⁴
To express the number 23,000 in scientific notation, we need to move the decimal point to create a number between 1 and 10, and then multiply it by a power of 10.
Starting with 23,000, we can move the decimal point to the left four places to get 2.3. This means we divided the original number by 10,000 (10⁴). To compensate for this division, we multiply 2.3 by 10,000 in the form of 10⁴.
Thus, the scientific notation representation of 23,000 is 2.3 x 10⁴. The coefficient (2.3) is between 1 and 10, and the exponent (4) indicates the number of decimal places the original number was moved.
To learn more about the decimal;
https://brainly.com/question/15945576
#SPJ6
OK I HAD TO GIX IT BUT BRAINLIRST TO WHOEVER ANSWERS
Answers
Answer:
Step-by-step explanation:
d i think
Answer:
d I am pretty sure from what is looks like
Graph the functions and approximate an x-value in which the quadratic function exceeds the exponential
function.
y = 4^x
y = 7x2 + 4x - 2
Answers
Answer:
Pls subcribe 6th and prevention does the meeting of cord my
Adrianna works in New York City and makes $40 per hour. She works in an office and must get her suit dry cleaned every day for $70. If she wants to make more than $210 a day, at least how many hours must she work in a day? Let x be the number of hours she must work in a day.
A. Write an inequality that represents the situation.
B. Solve the inequality.
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Answer:
A. 70 + 40h > 210
B. 3.5 < h
please help me
no links please and thank you :)
Answers
Answer: y=5/3x-4
Step-by-step explanation:
Hi, you could find the slope with any 2 points on the line. For accuracy, I will choose the points (6, 6) and (0, -4), meaning when x =6, y=6, and when x=0, y=-4. Then you can set up an equation. Because the line on this graph is linear (meaning straight), the form of the equation would be y=ax+b. (If it was a parabola, it would be y=ax^2+bx+c).
y=mx+b (Or some people prefer y=ax+b, but the same thing).
Now, plug in the x and y values, getting:
6 = 6m+b and -4=0*m+b
When you simplify, you will get that b is -4, and then m is 5/3
So the equation is y=5/3x-4
You can plug the numbers of x and y in to check your answer.
Hope this helps!
How do I do this? I need it in perimeter to 2 decimal places. Thank you!
Answers
Answer:
The perimeter is 127.1 cm
Step-by-step explanation:
30+25+25=80
(2)(3.14)(15)=94.2
94.2/2=47.1
Divide by two because of the semicircle
80+47.1=127.1
Answer:
Step-by-step explanation:
do this in two parts. one, the rectangle, two, the circle
the rectangle , you only have 3 sides to the rectangle.
2 * 25 = 50
1* 30 = 30
total perimeter of the rectangle = 80 cm
the circle, find the total of the circle, then since there is only half and circle, multiply that by 1/2 or divide by 2, same thing.
perimeter of a circle is the circumference
circumference of a circle is 2[tex]\pi[/tex]r or diameter[tex]\pi[/tex] , same thing
30[tex]\pi[/tex] = 94.24777961 cm ( the whole circle )
1/2*94.24777961 =47.1238898 cm
add the two parts
80 + 47.1238898 = 127.1238898 cm
127.12 cm ( rounded to two decimal places )
help please please really help me
Answers
To do the following I first listed the numbers from least to greatest
mean: (also known as average) is 7 just add all the numbers together and divide by the amount of numbers there are which is 77/11
median: 5 it's the middle number (5, 5, 6)
mode: 2 the number that appears the most
range: 16 difference between the highest value and the lowest (18-2)
quartile 1: 2 median of the lower half
quartile 3: 9 median of the upper half
interquartile range: 7 (Q3-Q1)
hope this helped :)
Cuál es el monto producido por S/ 80 000 durante 2 años 6 meses, si la tasa es de 16% anual compuesto trimestralmente? *
Answers
Answer:
118419,54
Step-by-step explanation:
Primero, convierta R como porcentaje en r como decimal
r = R / 100
r = 16/100
r = tasa de 0,16 por año,
Luego resuelve la ecuación para A
A = P (1 + r / n) ^ nt
A = Cantidad =?
P = Principal = 80000
R = 16%
n = Compuesto trimestralmente = 4
t = tiempo en años
= 2 años y 6 meses
12 meses = 1 año
6 meses = x
x = 6/12 = 0,5
t = 2.5 años
A = 80000,00 (1 + 0,16 / 4) (4) ^ (2,5)
A = 80000,00 (1 + 0,04)^ (10)
A = $ 118419,54
solve the linear system
Eq 1: 2x -4y = -2, Eq 2: 3x + y =4
Answers
Answer:
(1, 1 )
Step-by-step explanation:
Given the 2 equations
2x - 4y = - 2 → (1)
3x + y = 4 → (2)
Multiplying (2) by 4 and adding the result to (1) will eliminate the y- term
12x + 4y = 16 → (3)
Add (1) and (3) term by term to eliminate y
14x + 0 = 14
14x = 14 ( divide both sides by 14 )
x = 1
Substitute x = 1 into either of the 2 equations and solve for y
Substituting into (2)
3(1) + y = 4
3 + y = 4 ( subtract 3 from both sides )
y = 1
solution is (1, 1 )
I don’t understand please help!!!!