What are the x-intercepts of the equation y=4x^2-16
Answers
Answer:
x = ± 2
Step-by-step explanation:
To find the x- intercepts let y = 0 , that is
4x² - 16 = 0 (add 16 to both sides )
4x² = 16 ( divide both sides by 4 )
x² = 4 ( take the square root of both sides )
x = ± [tex]\sqrt{4}[/tex] = ± 2
The x- intercepts are x = - 2 and x = 2
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Related Questions
Select all the solutions to the quadratic equation x2-4x-12=0
Answers
We need two numbers that multiply to -12 and add to -4, so are two terms would be -6 and 2.
(x - 6) (x + 2) = 0
x = 6
x = -2
Answer:
x1= -2
x2= 6
Step-by-step explanation:
x^2-4x-12=0
x^2+2x-6x-12=0
x(x+2)-6(x+2)
(x+2)*(x-6)
one solution
x+2=0
x=-2
other solution
x-6=0
x=6
pls help!!!!!!!!!!!!!!!!!!
Answers
Answer:
32 degrees.
Step-by-step explanation:
A triangle is 180 degrees.
180 - 85 - 63 = 32 degrees.
Answer:
x = 32
Step-by-step explanation:
All interior angles in a triangle equal to 180
use this to solve for x
180 = 85 + 63 + x
180 - 85 - 63 = x
32 = x
Find the volume of the sphere.
Either enter an exact answer in terms of π or use 3.14 for π and round your final answer to the nearest hundredth.
Answers
Answer:
Volume of a sphere = 4πr³/3
r=10
V = 4πx10³/3
=4000π/3
V= 1333.33π (in terms of pi)
or
V= 4188.79(Nearest Hundredth).
Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of 1/3
Answers
Answer:
y-y1=m(x-x1)
y-2=1/3(x-3)
y=1/3x+1
Please help!! I have a test tomorrow and I'm struggling to answer this question
A periodic function f(x) has a period of 11. The values of f(3) and f(11) are 12 and 27, respectively. What is the value of f(14)?
Answers
Answer:
12
Step-by-step explanation:
f(14)= f (3 + 11)
= f(3) = 12
Therefore the value of f(14) is 12.
A shoe store sends an email survey to all customers who pay with a debit card. The previous month, 34,000 people made debit card purchases. Surveys were sent to 2,000 of these people, chosen at random, and 256 people responded to the survey. Identify the population and the sample. The population is 34,000. The sample is 2,000. The population is 2,000. The sample is 256. The population is 256. The sample is 34,000. The population is 2,000. The sample is 34,000. The population is 34,000. The sample is 256.
Answers
Answer:
The population is 34,000. The sample is 2,000
Step-by-step explanation:
Population in statistics can be explained as the group or set of all elements which are of particular interest to a researcher or a study. In the scenario above, the research interest concerns customers who pay with a debit card, whose number amounts to 34,000, this value refers to the population. The sample is referred to as the subset of the population or larger sample, the sample from the study corresponds to number of debit card users who were selected at random to participate in the survey. This value is 2000.
PLZ HELP: Write the inverse function for the function, ƒ(x) = 1/2x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.
Answers
Answer:
see explanation
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = [tex]\frac{1}{2}[/tex] x + 4 ( multiply through by 2 to clear the fraction )
2y = x + 8 ( subtract 8 from both sides )
2y - 8 = x
Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then
[tex]f^{-1}[/tex](x ) = 2x - 8
[tex]f^{-1}[/tex](4) = 2(4) - 8 = 8 - 8 = 0
What is the solution set of the equation x2 + 2x – 15 = 0?
Answers
Answer:
( x − 3 ) ( x + 5 )
Step-by-step explanation:
HAVE A NICE DAY
Answer:
B
Step-by-step explanation:
; factor the left side of the equation
; (x−3) (x+5) = 0
set factors equal to 0
x − 3 = 0
or
x + 5 = 0
; so, x = 3 or x = −5
¿Cómo expresarías la siguiente cantidad 1149,8x1018, en su equivalencia a notación científica?
Answers
hay tres respuesta creo en el problema te los dire los tres:
Primero tu pregunta:
Cómo corregirías esta equivalencia?
1149,8 x 10¹⁸ = 1,15 x 10¹⁸
Recordemos:
-en la notacion cientifica no se aproxima, solo se reduce
-Requisito: La notacion cientifica debe estar dentro de los estandares de 1-10
sabiendo esp te dare un ejemplo y asi se te hace mas faci:
1149,8 x 10¹⁸ = 1,15 x 10¹⁸ esta es mal
1149,8 x 10¹⁸ = 114,98 x 10¹⁸ + 1 ( esto se suma xq se movio la coma a la derecha)
PSDT: esta sumando el exponente ese pequeño(yo no puedo ponerlo pequeño xd)
Bueno segun esto avanzamos hasta que cumpla el requisito
y quedaria asi:
1149,8 x 10¹⁸ esta es la forma mala
asi quedaria: 1,1498 x 10 sobre 21 ( arribita del 10 va 21)
Que procedimientos ayudaron a encontrar la respuesta?
-la multiplicacion y division
-la reduccion de numeros
-la notacion cientifica
- la formula del volumen
Porque el volumen se expresa en unidades cubicas?
porque segun se el evolumen abarca 3 dimenciones (largo, ancho y altura) y tiene que haber unamedida por lo cual se expresa en Metro cubico que
Explicación paso a paso:
HELP ME WITH MATH PLEASEEEEE PLEASE ILL MARK
Answers
Answer:6
Step-by-step explanation:
Answer:
Your answer is right!
-130
Step-by-step explanation:
In a right triangle, the ratio of the length of the side opposite acute angle to the length of the side adjacent to angle is called the tangent of angle .
Answers
Answer:
The given statement is "True"
Step-by-step explanation:
The right angle triangle is shown below:
The tangent value of an angle is given by the expression as shown below:
[tex]tan\alpha =\frac{a}{b}[/tex]
What are the dimensions of the rectangle shown on the coordinate plane?
Answers
The base is 5 units and the height is 4 units.
Hope this helps! :)
Find the volume of the triangular prism
Answers
Answer:
72 yd³
Step-by-step explanation:
Volume = Area triangle * height
Area triangle = 1/2( 8 x 3 ) = 1/2( 24 ) = 12
Volume = 12 * 6 = 72
Units = yd³
72 yd³
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Please help first correct will get brianliest. Find the value of x that makes DEF XYZ
Answers
Answer:
x = 7
Step-by-step explanation:
The larger triangle is twice as big as the smaller triangle. Therefore, the length of the side EF is twice as large as the side YZ.
I multiplied 4.5 (the length of YZ) and 2 to get 9. The value of side EF is 3x-12 and should be equivalent to 9.
3x - 12 = 9
I solved this equation by adding 12 to both sides and dividing 3 on both sides.
The value of x is 7.
What are all numbers that equal to 30 in multiplication
Answers
Answer:
2 X 15 =30
3 X 10 = 30
5 X 6 = 30
6 X 4 = 30
10 X 3 = 30
Step-by-step explanation:
Explica qué significan las variables "m" y "b" en la ecuación y = mx +b*
Answers
Answer:
La M representa la pendiente de la recta y la b representa la intersección con el eje y
Step-by-step explanation:
Que tengas un excelente verano :)
Respuesta: En la ecuación y= mx + b, “m” representa la pendiente y “b” representa el y-intercept.
Espero que esto ayude, buena suerte! :D
solver for x, trigonometric ratios
Answers
6/sin(45°) = x
8.485 = x
8.49 = x
After leaving her house, Shelley drove 14.47 kilometers to the gas station and then another 5.8 kilometers to work. How many total kilometers did Shelley drive to get to work after she left her house? Show your work on paper. Then, enter your answer in decimal form in the box
Answers
Answer:
20.27 km
Step-by-step explanation:
14.47
+ 5.8
20.27
describe fully the single transformation that maps A onto c
Answers
Answer:
They are different because they are not similar and they have different answer at the end
Anthony and Joan have $10 to buy apples and oranges at the market. They will buy a total
of 25 pieces of fruit. Apples cost 50 cents each and oranges cost 25 cents each. Which of
these systems best represents this situation?
Answers
x + y = 25 is the number of pieces of fruit they will buy, where x is apples and y is oranges.
0.50x + 0.25y = 10 applies the cost, in cents, to each piece of fruit. The 10 is 10.00, keeping everything to the same number of decimal places.
I need help to find the value please
Answers
Answer:
13.928
Step-by-step explanation:
Pythagorean theorem. 13^2 + 5^2 = x^2
Answer:
this is easy
Step-by-step explanation:
valve of x is 30 add 13 into 30 = 43÷5 5/8
Find the missing lengths of the sides.
Answers
Answer: x = 8, y = 8
Step-by-step explanation: If 8 is already on the exterior of the triangle then this means that every angle should also be 8. But, if this were an equilateral triangle, a triangle with equal sides, then ALL sides would HAVE to be 8. But since I don't have this information (if it's equilateral or not), then I can't be positive about this. Really hope this helps you!
9.2\times 10^{-3}-1.3\times 10^{-3}
9.2×10
−3
−1.3×10
−3
Answers
Answer:
73
Step-by-step explanation:
9.2 x 10 - 3 - 1.3 x 10 - 3
92 -3 - 13- 3
73 is the answer if that the question
Answer:
[tex](9.2 \times {10}^{ - 3}) - (1.3 \times {10}^{ - 3} ) \\ \\ = { \tt{(9.2 - 1.3) \times {10}^{ - 3} }} \\ \\ = { \tt{7.9 \times {10}^{ - 3} }}[/tex]
Is it a function yes or no. 1,2,3,4,5,6.
Answers
Easy
1/6 x 1/2x 1/3
help me (￣▽￣)╭
Answers
======================================================
Explanation:
The numbers up top are 1,1,1. They multiply to 1*1*1 = 1. So that means 1 is the numerator of the answer.
The numbers down below are 6,2,3. They multiply to 6*2*3 = 36. This is in the denominator for the answer.
That means (1/6)*(1/2)*(1/3) = 1/36
The rule I used is (a/b)*(c/d) = (a*c)/(b*d)
Answer:
1/36
Step-by-step explanation:
Step 1:
1/6 · 1/2 · 1/3 Equation
Step 2:
1/6 · 1/6 Multiply
Answer:
1/36
Hope This Helps :)
What are the domain and range of the function represented by the table?
Answers
Answer:
Doman is always the x-intercept.
And Range is always the y-intercept.
Domain = {-5, 0, 5, 10, 15}
Range = {-1, 0, 1, 2, 3}
So the answer is C.
PLEASE PLEASE HELP ME! thank you so so much
explaining your answer = brainliest/five stars
The radius of a circle is 4 kilometers. What is the area of a sector bounded by a 135° arc?
give the exact answer in simplest form
Answers
Answer:
6π
Step-by-step explanation:
(135/360)×π×4²
(135/360)×π×16
=6π
A whole number is 6 more than 2 times another number. The sum of the two numbers is less than 50. This can be written in an inequality as x+2x+6<50, where xrepresents the smaller number.
From the set (13, 14, 15, 16, 17), the values of x for which the inequality holds true are
Answers
Answer:
13, 14
Step-by-step explanation:
The parameters of the numbers are;
A whole number value = 2 × Another number + 6
The sum of the two numbers is less than 50
Given that the first number is equal to more than twice the second number, we have that the first number is the larger number, while the second number is the smaller number
Where 'x' represents the second number, we get;
x + 2·x + 6 < 50
Simplifying gives;
3·x + 6 < 50
x < (50 - 6)/3 = 14.[tex]\overline 6[/tex]
x < 14.[tex]\overline 6[/tex]
Therefore, the numbers for which the inequality holds true are numbers less than 14.[tex]\overline 6[/tex]. From the given option, the numbers are 13, and 14.
Find all real zeros of the function.
h(x) =-5x(x-2)(x^2-25)
If there is more than one answer, separate them with commas.
Answers
Answer:
6
Step-by-step explanation:
Need some assistance please
Answers
Answer:I hope this could help !ut the answer is 4
Step-by-step explanation:
2 of them left so there are 4 left