Answer:
A graphing calculator is more likely to be correct than if we do it by hand. When doing it by hand, we could have minor algebra errors that could change the final answer. However, the calculator has built-in algorithms that could solve the system of equations quickly and accurately. also another
Sample Response: A graphing calculator is more accurate than graphing by hand. If the slope and/or y-intercept is a fraction or decimal, it is more difficult to accurately graph by hand. Using a calculator might also be more time-efficient because it might accept a line in any form. A calculator’s window can be adjusted quickly instead of having to redraw a graph by hand when adjusting the scale.
Step-by-step explanation:
Answer:
A graphing calculator is more accurate than graphing by hand. Using a calculator might also be more time efficient because it might accept a line in any form. A calculator's window can be adjusted quickly instead of having to redraw a graph by hand when adjusting the scale.
Work out the size of angle x
value? Hint: Rationalize the denominator and
4/4 - sqr6x
Answer:
The Answer is A
Step-by-step explanation:
I'm 100% right.
CAN SO ONE PLS HELP ME whats (2-3x4)9+22
Answer:
The answer is = 112
Step-by-step explanation:
3x4 = 12
12 - 2 = 10
10 x 9 = 90 .,. when there is a ) next to a number you multiply
90 + 22 = 112
What is the y-intercept of the graph? *
Answer:
it's 5 cause it meet the y axis
ill
Simplify each expression:
1. 2x + 4x-5 - +10
2. 4( 5x - 11) - (2x + 11)
3. 5.6y + 9.2x -3.3y +11 - 2x -13
Which symbol should go in the blank
8x 5/4 __8
Answer:
it should be x
Step-by-step explanation:
hope this helps
What is 2.35 rounded to the nearest hundredth.
2.35 is already rounded to the nearest hundredth.
Y = 4( x + 2)^2 - 8
Convert the equation from vertex form to standard form.
Answer:
hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
erold’s weekly pay rate is $865. He receives a 25% pay raise. How can Jerold calculate his new weekly pay rate? Select all that apply.
A divide $865 by 0.25
B divide $865 by 1.25
C multiply $865 by 0.25
D multiply $865 by 1.25
E Solve for x: x···8655 125···100
F Solve for x: 865···x5 25···100
Answer:
D
Step-by-step explanation:
865 increase 25% =
865 × (1 + 25%) = 865 × (1 + 0.25) = 1081.25
Gavin wants to buy a jacket that sells for $38.95. An advertisement says that next week that jacket will be on sale for $22.50. How much will Gavin save if he waits until next week to buy the jacket?
Answer: Gavin will save $16.45 if he waits until next week to buy the jacket.
Step-by-step explanation:
Given: Current Market price of jacket = $38.95
Sales price next week = $22.50
Amount he can save = (Current Market price of jacket)- (Sales price next week )
i.e. Amount he can save = $ (38.95-22.50)
i.e. Amount he can save = $ 16.45
Hence, Gavin will save $16.45 if he waits until next week to buy the jacket.
After learning how to fly, Wendy reduced her daily commute time by
75
%
75%75, percent. Previously, her commute took
m
mm minutes.
Answer:
3/4m
Step-by-step explanation:
Explain how to write a quadratic equation given the vertex and another point on the graph, in the form of ()=(−ℎ)2+, vertex form.
Vertex: (−4,6)and point (−3,3)
How do you add fractions and whole numbers together? For example 1/4+2
Answer:
2.25 or 2 1/4
Step-by-step explanation:
Easy. you add them like regular numbers. 1/4 + 2 = 0.25 + 2 =2.25 and/or 2 1/4
Llam
Is this a right triangle?
Use the Pythagorean Theorem to find out!
20 cm
21 cm
29 cm
Yes
No
Answer:
Yes
Step-by-step explanation:
29×29=841
21×21=441
20×20=400
29^2-21^2=20^2
841-441=400
400=400
Yes it is a right angle triangle
The function y=-2(x-2)^(2)+6 shows the daily profit (in hundreds of dollars) of a hot dog stand, where x is the price of a hot dog (in dollars). Find and interpret the zeros of this function.
Select two answers: one for the zeros and one for the interpretation.
The answers are:
Answer:
C. Zeros at x = 2 ± √3, and D. The zeros are the hot dog prices that give $0.00 profit (no profit).
what s the vertex y=3x^2-18x +30
Answer:
(3,3)
Step-by-step explanation:
Rewrite in vertex form and use this form to find the vertex ( h , k ) .
NEED HELP ASAP
ILL MARK BRAINLIEST
Which expression is equivalent to 12 x + 3 ( x − 2 )
Answer:
15x - 6
Step-by-step explanation:
To solve this, Given the expression 12 x + 3 ( x − 2 )
To simplify, expand
12 x + 3 * x −3 * 2
Knowing that
- * + = -
then the expression becomes
= 12 x + 3x - 6
= 15x - 6
The expression given is equivalent to 15x - 6
Which value of x is a solution to this equation? 5 x 2 - 36 x + 36 = 0
The table shows the different prices at a diner.
Sandwich $5
Drink $2
Dessert $3
What is the total cost for both customers?
a $10
b. $20
c. $25
d. $35
Negative five times a number is less than the sum of negative six times the number and 12
Answer:
-5 x X < -6x + 12
Step-by-step explanation:
I THINK im not really used to this but yes this is my expression i would present.
find the value of x
PLZ
Answer:
x=21
Step-by-step explanation:
wow this waz ez
please help (if you can)
need help ty I’ll give brainliest
Answer:
120
Step-by-step explanation:
all angles of a triangle add up to 180. 180-15-45= 120.
:D
brainliest pls
Given :
Measure of an angle = 15°
Measure of the second angle = 45°
Let the measure of the third angle be x.
We know that :
▪︎Sum of all angles of a triangle = 180°[angle sum property]
Which means :
[tex] =\tt 15 + 45 + x = 180[/tex]
[tex] =\tt 60 + x = 180[/tex]
[tex] =\tt x = 180 - 60[/tex]
[tex]\hookrightarrow\color{plum}\tt \: x = 120°[/tex]
Thus, the measure of the third angle = 120°
Since the sum of all these angles is equivalent to 180°[15+45+120=180] we can conclude that we have found out the correct measure of the third angle.
Therefore, the correct option is (C) 120
What is the equation for five times a number is 45?
Answer:
5 × Y = 45 y stands for "a number"
Step-by-step explanation:
not sure what your asking so ill solve it too
45/5=9
when the equation is multiplication you use division also vice versa for division
5×9=45
y=9
HELP!!
If we changed the -3 to a 3 in the equation, what would happen to the graph?
Answer:
It would change the y-intercept, so if it turned into a 3, the slope would just go higher at the beginning.
Step-by-step explanation:
Hope it helps!
The graph of the new equation y = 2ˣ⁻⁴ + 3 will have the same shape as the original graph, but it will be shifted 4 units to the right and 3 units up.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The equation y = 2ˣ⁻⁴ - 3 is an exponential function that has been shifted 4 units to the right and 3 units down from the basic exponential function y = 2ˣ.
If we change the -3 to a 3, we get the new equation:
y = 2ˣ⁻⁴ + 3
This new equation represents the original exponential function shifted 4 units to the right and 3 units up.
Therefore, the graph of the new equation y = 2ˣ⁻⁴ + 3 will have the same shape as the original graph, but it will be shifted 4 units to the right and 3 units up.
To learn more on Graph click:
https://brainly.com/question/17267403
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Maggie goes to two different stores to shop for t-shirts. Both stores are having a sale.
At Store A, t-shirts are regularly priced at $22 but are on sale for 25% off.
At Store B, t-shirts are regularly priced at $30 but are on sale for 45% off.
Which of the following is true about the sale price of a t-shirt at the two stores?
A. Store B has the better price because 45% is greater than 25%.
B. Store A has the better price because $22 is less than $30.
C. The sale price is the same for both stores.
D. The sale price cannot be determined.
Answer:
store B
Step-by-step explanation:
X²-8x+16=(x-?)(x-?) Can u help me
Answer:
Step-by-step explanation:
(x-4)(x-4) or (x-4)^2
F(x)=3x-2 find f^-1(x) than find f^-1(13)
Answer:
see explanation
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 3x - 2 ( add 2 to both sides )
y + 2 = 3x ( divide both sides by 3 )
[tex]\frac{y+2}{3}[/tex] = x
change y back into terms of x with x = [tex]f^{-1}[/tex] (x)
[tex]f^{-1}[/tex] (x) = [tex]\frac{x+2}{3}[/tex]
To evaluate [tex]f^{-1}[/tex] (13) substitute x = 13 into [tex]f^{-1}[/tex] (x) , that is
[tex]f^{-1}[/tex] (13) = [tex]\frac{13+2}{3}[/tex] = [tex]\frac{15}{3}[/tex] = 5
If tn=18√t, what value of n makes this equation true?
Answer:
1/18
Step-by-step explanation: