What is the domain of this graph?
Answer:
Domain: all real numbers
Step-by-step explanation:
This graph is a parabola. It's equation looks like it should be:
y = x^2 - 1
If you have a graph and are looking for the domain, you are determining where the graph exists. For what x's the graph exists. If you have the equation then the domain is what x's may be put into the equation. There are no limitations on what numbers can go into this equation so the domain is all real numbers.
There are several ways to write the domain is all real numbers, set builder notation and interval notation. But the main idea is that it is all real numbers.
find the distance point between ( 0,0 ) and ( 4,3 )
Answer: The distance between the two points is 5.
What equations for x=-3 is a possible solution?
Answer:
2,4,5
Step-by-step explanation:
factor 6(x^2 - 16) - (3x+1) (x-4) + (8-2x) (x+2)
Answer:
Step-by-step explanation:
a² - b² = (a + b)(a - b)
x² - 16 = x² - 4²
= (x + 4)(x -4)
8 - 2x = (-2)*(-4) - 2x
= -2( -4 + x)
= -2( x - 4)
6(x² - 16) - (3x +1)(x - 4) + (8 - 2x) = 6(x +4)(x-4) -(3x +1)(x -4) - 2(x -4)
= (x -4) [6*(x+4) - (3x+ 1) - 2]
= (x -4) [ 6x + 24 - 3x - 1 - 2]
= (x - 4) [ 6x - 3x + 24 - 1 - 2]
= (x - 4)(3x + 21)
= (x -4) 3*(x +7)
= 3(x -4)(x+7)
Write 16 as a product of primes.
Use index notation when giving your answer.
Answer:
2⁴
Step-by-step explanation:
16
= 4 × 4
= 2 × 2 × 2 × 2
= 2⁴
Hope it helps ⚜
16
to find:the index notation.
solution:[tex]16[/tex]
[tex]4 \times 4 = 16[/tex]
[tex] {4}^{2} = 16[/tex]
[tex]2 \times 2 \times 2 \times 2 = 16[/tex]
[tex]2 {}^{4} = 16[/tex]
PLEASEE HELPPPP!!!!!!!!
QRS and UST are shown below.
Which statement is true?
Answer:
no, they are not similar
the triangle above is an isosceles triangle, meaning two sides are equal which also means the two angles below are both 55 since one given angle is 55 the other is 55 as well
in the other triangle we are given a different angle, considering this angle is the third unknown angle in the other triangle we will use this to find out if the sum of this angle and the other two 55 degree angles will equal 180 degrees
(sum of interior angles in a triangle is 180)
55 + 55 + 65 = 180?
175 ≠ 180
175 degrees is not equal to 180 degrees so therefore they are not similar.
What's the missing number in the given problem?
6, 22, 14, 18, 16, ?
After totaling his donations for the run-a-thon, Darnell will earn $40 for every 2.5 miles he runs.
Step 1: Choose the function equation for this situation
Answer: it would be y=2.5x*40
Step-by-step explanation:
Answer:
for miles lets use (m) symbol
earnings =(m÷2.5)×40
Step-by-step explanation:
for example
Darnell has run 20 miles
earnings =( 20÷2.5)×40 =8×40= $320
what 0.008 is 1/100 of
Answer:
0.8
Step-by-step explanation:
Consider the the first six terms in the sequence 10, 29, 48, 67, 86, 105... Which statements are correct?
No clue how to do. Please help.
Step-by-step explanation:
hope it's helpful
thanks
okh please mark me as brainlist pleaseThe diameter of a circle is 12 1/3 inches.
What is the radius, r, of the circle?
Enter your answer as a mixed number in simplest form by filling in the boxes.
r = $$
in.
Answer:
The radius is 6 1/6
Step-by-step explanation:
The radius is half of the diameter and 12 1/3 divided by 2 = 6 1/6
Answer:
6 1/6 took da test
Step-by-step explanation:
What is the answer I have to type in the yellow boxes?
[tex]\\ \rm\bull\rightarrowtail y=(1x^2)+3(x)[/tex]
[tex]\\ \rm\bull\rightarrowtail y=1(-6)^2+3(-6)[/tex]
[tex]\\ \rm\bull\rightarrowtail y=1(36)+(-18)[/tex]
Note the rule
(+)(-)=(-)[tex]\\ \rm\bull\rightarrowtail y=36-18[/tex]
[tex]\\ \rm\bull\rightarrowtail y=18[/tex]
Answer:
36 -18
18
Step-by-step explanation:
This is slightly confusing, since the question says "find the y coordinate if x = -4" yet underneath if appears they want x = -6 !
If x = -6
Substitute -6 into the equation in place of x
⇒ y = 1 × (-6)² + 3(-6)
Apply the rule (-a)² = a² and a(-b) = -ab:
⇒ y = 1 × (6)² + -3×6
⇒ y = 1 × 36 + -18
Using order of operations, carry out the multiplication first:
⇒ y = 36 + -18
Then the addition (subtraction)
⇒ y = 36 - 18
⇒ y = 18
Evaluate the following expression if x=3: 2^x *
Answer:
x = 8
Step-by-step explanation:
This question is pretty simple. You already know the value of x, we substitute what x equals and find the number 2 cubed.
2^3 = ?
2x2x2 = 8
What is the correct answer NEED IT ASAP PLEASE
Answer:
Yes it is
Step-by-step explanation:
the point is covered by both equations
Answer:
1. (-1 infinity) and (- infinity, -5)
2. no
Step-by-step explanation:
An equation is shown
X + 1 = 9x - 3
What is the solution?
Answer:
Step-by-step explanation: x + 1 = 9x - 3
x + 1 = 9x - 3
(minus x from both sides)
1 = 8x -3
(add 3 to both sides)
4 = 8x
(flip the equation)
8x = 4
(divide both sides by 8)
x = 4/8
x = 1/2 or 0.5
My friends are walking to their house. They first walks directly north 20 feet. They then turn to the right and walk directly east 20 feet and they arrive at their house. If my friends had walked from their starting point directly to their house in a straight line, How many feet would they walk?
Answer:
28.28 ft
Step-by-step explanation:
20^2+20^2=c^2
400+400=c^2
28.28 = c
Describe the shape below.
my grades
PE-A
science-B
music-A
social studies-C
health-A
math-B
spanish-A
ELA-F
yall can trust me on anything except for social studies and ELA
The distance between two stations A and B is 100km.If the average speed of a train is increased by 5km/h , the time taken by the train to travel from A to B would be 10 minutes less.Find the original average speed of the train.
Answer:
I also occupy it they pass it to me
2 x 3 ( 3 + 1 ) x 4 +7 - 5
Step-by-step explanation:
2x3(3+1)x4+7-5
6(4)x4+2
24x4+2
96+2
98
hope this helps you
have a good day
Solve for X. Round your answer to the nearest tenth,if necessary.
Answer:
[tex]21\sqrt{2}[/tex]
Step-by-step explanation:
Special traingle relationships for a 45-45-90 triangle says that the hypotenuse is always (leg length)(square root 2).
[tex]21\sqrt{2} *\sqrt{2} =42[/tex]
Answer:
29.7
Step-by-step explanation:
[tex]x = \frac{42}{ \sqrt{2} } = 21 \sqrt{2} [/tex]
which is about 29.7.
Brad, Stella, and Gilbert want to get a thank you gift for Maria. They will split the cost evenly. They buy 6 roses at $2.15 each and a box of chocolates for $7.90. The store has a "no sales tax" day.
Brad estimates the cost per person to be $8. Is this reasonable?
A yes or no
Stella estimates the cost per person to be $7. Is this reasonable?
B yes or no
Gilbert estimates the cost per person to be $6. Is this reasonable?
C yes or no
Answer: Stella has a reasonable Answer
Step-by-step explanation:
When you add up all of the Costs, you get an answer of $20.80
You Divide $20.80 by 3
And you get your answer of 6.93333
Which estimates around 7 dollars making Stella Right!
Hope this helps :)
WILL GIVE BRAINLIEST The number of milligrams of a certain drug that is in a patient's bloodstream h hours after the drug is injected is given by the following function.
When the number of milligrams reaches 6 , the drug is to be injected again. How much time is needed between injections?
Round your answer to the nearest tenth, and do not round any intermediate computations.
Answer:
3.6 hours
Step-by-step explanation:
Given that the number of milligrams of a drug in a patient's bloodstream after h hours is D(h) = 25e^(-0.4h), you want to know how much time elapses before the number reaches 6 milligrams.
SolutionYou want to solve for h the equation ...
D(h) = 6
25e^(-0.4h) = 6 . . . . . . use the given expression for D(h)
e^(-0.4h) = 6/25 . . . . . divide by 25
-0.4h = ln(6/25) . . . . . take natural logs
h = ln(6/25)/-0.4 ≈ 3.6
About 3.6 hours is the time needed between injections.
__
Additional comment
Because there are 6 mg remaining after the first injection when the second is given, it will take about 4.1 hours for the amount to decline to 6 mg after the second injection.
<95141404393>
on a timer please answer quick
Answer:
6
Step-by-step explanation:
I assume you want the answer as soon as possible so I won't leave an explanation, but comment if you need help or have any questions! :D
Saqui buys streamers for \$0.09$0.09dollar sign, 0, point, 09 per meter.
What is the price, in dollars, of 300300300 centimeters of streamers?
There are 100100100 centimeters in a meter.
Answer:
$0.27
Step-by-step explanation:
1/4 The ratio of meters of streamers to cost of streamers is 1 : 0.09
We want to know the ratio of centimeters of streamers to cost of
streamers.
2/4 We need to convert meters to centimeters.
There are 100 centimeters in 1 meter.
So, if 1 meter of streamers costs $0.09, then 100 centimeters of
streamers also cost $0.09.
3/4 The ratio centimeters of streamers to cost for 300 centimeters of
streamers.
Now, we can find an equivalent ratio to find the cost for 300
centimeters of streamers.
4/4 The streamers cost $0.27 per 300 centimeters.
Given the piecewise function above evaluate the following statements. (write "DNE" if the limit does not exist)
The piecewise function of the above evaluate the following statements has the limit of the function as,
a) Does not exist (DNE)b) 3-13e) Does not exist (DNE)2What is the limit of a function?
The limit of a function at a certain point is the points, or boundary, in which the function can be existed.
The first function is given as,[tex]\lim_{x \to -2} f(x)[/tex]
Here, the limit of the function is -2. This limit does not exist for the given graphed function.
The second function is given as,[tex]\lim_{x \to 0} f(x)[/tex]
Here, the limit of the function is 0. At this limit the function is continues and the value of the function at point 0 is 3.
The third function is given as,[tex]\lim_{x \to 2} f(x)[/tex]
Here, the limit of the function is 2. At both the place, upside or downside, we get the value as -1. Thus, the value of function is -1.
The forth function is given as,[tex]f(2)[/tex]
Here, the function has the initial value 2. At this value, the value of the function is 3. Thus, the limit of the function at this point is 3.
The fifth function is given as,[tex]\lim_{x \to 4} f(x)[/tex]
Here, the limit of the function is 4. For this limit, the asymptotes goes from positive infinite and negative infinite. Thus, the limit does not exist for this point.
The sixth function is given as,[tex]\lim_{x \to \infty} f(x)[/tex]
Here, the limit of the function is ∞. For this limit, the function will tend asymptotically to the number 2.
The piecewise function of the above evaluate the following statements has the limit of the function as,
a) Does not exist (DNE)b) 3-13e) Does not exist (DNE)2Learn more about the limit of a function here:
https://brainly.com/question/23935467
Which one is larger?
Answer:
-17 or b
Step-by-step explanation:
b = 4(-3) - 5
b = -12 - 5
b = -17
when a = -3 c is -20
- 17 is larger. you may think "oh its 20 that must be larger!" but thats wrong. -17 you be larger because its closer to 0
the common factor of 6ab and 11cd
The common factors between the two expressions is 1.
What is a common factor?A common factor is a number that may be divided by two without leaving a residue. Numbers frequently share more than one aspect in common.
In order to find the common factor between the two expressions, we need to write the terms in factors form. Therefore, both the expression can be written as,
[tex]6ab = 2 \times 3 \times a \times b\times 1[/tex]
[tex]11cd= 11 \times c \times d \times 1[/tex]
As we can see that except for 1, there are no common factors in the two expressions.
Hence, the common factor between the two expressions is 1.
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