I would use a graphing tool like desmos or geogebra, or a texas instruments graphing calculator, there a number of tools out there. The first two options are free online tools. Using technology to graph is much preferred over doing it by hand.
If you must do it by hand, then the idea is to plug in various values of x to get corresponding values of y. For instance, if x = 7, then
y = sqrt(x-3)
y = sqrt(7-3)
y = sqrt(4)
y = 2
So the point (x,y) = (7,2) is on this curve. Repeat for other x values to get more points. Then plot the points all on the same xy grid. Lastly, draw a curve through those points. The more points you have, the more accurate the graph. Use graphing technology to help confirm you have the right graph.
As for the question of one-to-one, you are looking to see if the horizontal line test fails or not. After fully graphing y = sqrt(x-3), try to construct a single horizontal line that will pass through more than one point on the curve. You'll find that such a task is not possible in this case; therefore, this graph passes the horizontal line test and consequently the graph is one-to-one.
An example where a graph is not one-to-one would be a parabola. It is possible to pass a single horizontal line through more than one point on a parabola.
7 elementary classes will be chosen to participate in a school lunch survey. There are 21 elementary classes in the school. In how many
ways can the classes be chosen?
Keypad
Answer
How to enter your answer
Answer:
( About ) 1.01371e + 16 ways
Step-by-step explanation:
You have 21 choices for the first student chosen, 20 choices for the next, then 19, then 18. However, this over-counts everything by a factor of 7! (the number of ways in which four objects can be arranged with regard to order).
Thus, take a look at the procedure below;
[tex]21! / 7! =\\21 * 20 * 19 * 18 * 17 * 16 etc. / 7 * 6 * 5 * 4 * 3 * 2 * 1 =\\( About ) 1.01371e+16[/tex]
This is an approximate answer mind you, so I hope that still helps!
PLEASE HELP ME WITH MATH
Answer:
Surface Area: 200.48 yd^2
Volume: 141.2 yd^3
Step-by-step explanation:
Rectangular Prism x1 = 148.48 yd^2
Let's start off by splitting this figure into three shapes, one rectangular prism and two triangular prisms. Find the surface area of the rectangular prism by finding the area of each side of it, (8 yd * 2.8 yd) for only the bottom, (8 yd * 4.8 yd) x 2 for the front and back, and (2.8 yd * 4.8) x 2 for the left and right side. You will get 44.8, 76.8 and 26.88 for a total of 148.48 yd^2.
Triangular Prism x2 = 52 yd^2
Find the area of one of the front triangles using the given 3 yd with a length of 4 yd given that one triangle takes up half the length of 8 yd horizontally. Use the triangle formula (length x width)/2 and substitute in values 3 and 4 above to get an area of 6 yd^2. Times that amount of yards by 4 since we have 3 remaining sides that are the same to get 24 yd^2, remember this for later. Almost there as we also have two rectangles on the triangular prisms: both with width of 5 yd and length of 2.8 yd, find area using l*w to get 14 yd^2. Add two of them to get 28 yd^2 for each rectangle. Add 24 yd^2 with 28 yd^2 to get a surface area of 52 yd^2 for BOTH the triangular prisms.
Finally add the surface area of the three figures to get a total surface area of 200.48 yd^2.
Now we move on to volume, which is actually more simple.
Formula of Rectangular Prisms = length x width x height
Formula of Triangular Prisms = (length x width x height) / 2
Volume of Rectangular Prism = (8 yd * 2.8 yd * 4.8 yd) = 107.52 yd^3
Volume of Two Triangular Prisms = (4 yd * 3 yd * 2.8 yd) / 2 = 16.8 yd^3 x 2
Finally add the volumes together to get your final volume.
107.52 + 16.8 + 16.8 = 141.2 yd^3
Sorry if this is long xd
Write down the order of rotational symmetry of the shape.
Answer:
the order of rotational symmetry of the shape is 2
5000 people visit a website. 95% stay more than 2 minutes how many people visiting the website stay for more than 2 minutes
Answer:
4750
Step-by-step explanation:
Take 95, move the decimal. 0.95
then multiply 5000 by 0.95
What is the perimeter?
Answer:
91+c
Step-by-step explanation:
The equation to find the perimeter of the triagle is every side added together. We know 2 sides which means we add them to get 91. Then we know we don't know the next number but we add it so we just put the c where the next number to be added would go.
Mrs. Allen, a high school math teacher, is grading quizzes and tests this weekend. She has at most 4 hours, or 240 minutes, to spend
grading, and she would like to get at least 60 quizzes and tests graded. On average, it takes her 3 minutes to grade each quiz and
8 minutes to grade each test,
If x represents the number of quizzes and y represents the number of tests Mrs. Allen grades this weekend, which graph represents
the solution set?
Answer:
(55,9)
Step-by-step explanation:
^
help? Given the points (0, 9) and (2, 3) find the slope.
Answer:
Slope = -3
Step-by-step explanation:
Slope = [tex]\frac{rise}{run}[/tex]
Slope = [tex]\frac{3-9}{2-0}[/tex]
Slope = [tex]\frac{-6}{2}[/tex]
Slope = -3
what is the y intercept, function, domain and range, and horizontal asymptote of y=3^x
Answer: y−intercept is =(0,−2), the horizontal asymptote is y=4, Domain is − ∞ < x < −2 and −2 < x < ∞, Range is − ∞ < y < 4 and 4 < y < ∞
Step-by-step explanation: Vertical asymptote can be found by setting the denominator equal to 0 and solving for x : , Horizontal asymptote can be found by evaluating yas x→±∞,
what is 100,000 written as a power with a base of 10? ANSWER QUICK
Answer:
Its either 10 to the power of 6 or ten to the power of 5
Step-by-step explanation:
...
Evaluate and simplify 2ab-1/3e-3d
Answer: 2ab - e/3 - 3d
Step-by-step explanation:
2ab - 1/3e - 3d
= 2ab - 1e/3 - 3d
= 2ab - e/3 - 3d
Please Answer ASAP! will give 5 star and brainliest
An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated. Draw the possibility diagram of the product of the two numbers appearing on the die in each throw Use the possibility diagram to calculate the probability that the product of the two numbers is (i) A prime number (ii) Not a perfect square (iii) A multiple of 5 (iv) Less than or equal to 21 (v) Divisible by 4 or 6
Answer:
Step-by-step explanation:
Use the possibility diagram to calculate the probability that the product of the two numbers is
A prime number
Sample Space: 64
Prime Number:8
Probability: 8/64 = 1/8
Not a perfect square
Sample Space:64
Not a perfect square:56
Probability: 56/64 = 7/8
A multiple of 5
Sample Space:64
A multiple of 5: 16
Probability: 16/64 = 1/4
Less than or equal to 21
Sample Space:64
Less than or equal to 21:24
Probability: 24/64 = 6/16 = 3/8
Divisible by 4 or 6
Sample Space:64
Divisible by 4 or 6:32
Probability: 32/64 = 1/2
NEED HELP ASAP PLEASE!!!!!!!!!!!!!!!!
Consider the triangles
What can be concluded about these triangles? Check
all that apply
O The corresponding angles are proportional
The ratios of the corresponding sides are
equivalent
The corresponding sides are congruent.
O The corresponding angles have the same measure
DE corresponds to IH
The corresponding angles have the same measure and the ratios of the corresponding sides are equivalent.
What are similar figures?Similar figures are figures that have the same shape and the ratio of their corresponding sides are proportional. Also, they have the same corresponding angles.
From the triangles, the corresponding angles have the same measure. Hence, they are similar and the ratios of the corresponding sides are equivalent.
Find out more on similar figures at: https://brainly.com/question/26173060
Answer:
hi im sorry im late, the answers would be:
1. The ratios of the corresponding sides are equivalent.
2. The corresponding angles have the same measure
3. DE corresponds to IH.
Step-by-step explanation: here's proof :)
have a good day!!
In A, tangent HF and chord EG intersect to form ZHEG. Find mZHEG.
A. 118°
B. 236°
C. 242°
D. 3540
Please select the best answer from the choices provided
B
D
Answer:
A.
Step-by-step explanation:
Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (negative 4 x) squared + (9) squared = 16 x squared + 81. Which statement best describes Kylie's explanation? Kylie is correct. Kylie correctly understood that it is a difference of squares, but she did not determine the product correctly. Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly. Kylie determined the product correctly, but she did not understand that this is a perfect square trinomial.
Answer:
Given:
Step-by-step explanation:
Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.
This is because the product will be a trinomial and the polynomial will not result in a difference of squares. A difference of squares is when the factor are inverse to each other.
C- Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.
67.5675675676 rounded to the nearest tenth I get confused sometimes lol.....I completely forgot how this goes, please help me, its for a lab:|
Answer:
67.6
Step-by-step explanation:
Since 67.56 is 6 and above so, it is rounded to 6 so, it is 67.6.
slope=m=
please need help, if someone could explain ;)
Answer:
5/3
Step-by-step explanation:
The line goes through the points (0,0) and (3,5)
m = (y2-y1)/(x2-x1)
= (5-0)/(3-0)
= 5/3
Brainliest ? For which inequality is (0,0) a solution?
Answer:
C. y-5>3x-7
Step-by-step explanation:
If you multiply y and x to 0 you get -5 > -7
Answer:
C. y-5>3x-7
Step-by-step explanation:
The point (0, 0) would be a solution because the inequality is greater than or equal to. Since the 2 sides become equal, the inequality is true which means (0, 0) is a solution.
please mark me brainliest :)
AB is parallel to CD . Find the measure of each numbered angle. I NEED HELP ON 8 AND 9 ASAP
Answer:
Question (8). m∠1 = 142°
m∠2 = 300°
Question (9). m∠1 = 73°
m∠2 = 82°
Step-by-step explanation:
Question (8). m∠1 + 38° = 180° [Supplementary angles]
m∠1 = 180 - 38
m∠1 = 142°
m∠x = 38° [Alternate interior angles]
m∠y = 22° [Alternate interior angles]
Now, m∠2 = 360° - (m∠x + m∠y)
= 360° - (38 + 22)°
m∠2 = 300°
Question (9). m∠RMN + 98° = 180°
m∠RMN = 180 -98
= 82°
m∠RMN = m∠ARM = 82°
m∠2 = 82°
m∠SNM = 73° [Vertical angles]
m∠SNM = m∠OSR = 73°[Corresponding angles]
m∠1 = 73°
Raj’s farmhouse is 1245km away from hiswarehouse. Daily he drivesa certain distance and then his friend Rohantakes aturn to drive his carfor 412km distance to reach thewarehouse.(a)What distance does Raj drivedaily?
Answer:
Step-by-step explanation:
Subtract the distance driven by Rohan from the total distance
Distance driven by Raj = 1245 - 412
= 833 km
anyone know this please ;)
Answer:
The planet to have the biggest mass is Jupiter
the radius of mercury is 2.44 × 10^5
the difference in mass between Jupiter and Saturn is 2.2 × 10⁴
A 350 m cable is attached to the top of the tower. The angle of elevation to the top of the tower is 60. How high is the tower in meters
Answer:
303
Step-by-step explanation:
sin 60 = x / 350
x = 350(sin60) = 303.1
why is 8.8 a rational number
Answer:
See below
Step-by-step explanation:
8 is classified as a rational number because it can be made into a fraction. 8.8 = 8 8/10 = 88/10
solve for x
5(x+9)=-45
i need help ASAP
Answer:
x = -18
Step-by-step explanation:
5 ( x + 9 ) = -45
→ Expand out the brackets to simplify the equation
5x + 45 = -45
→ Minus 45 from both sides to isolate 5x
5x = - 90
→ Divide both sides by 5 to isolate x
x = -18
Answer:
x= -18
Step-by-step explanation:
5*(x+9)=-45
:5 :5
x+9=-9
-9 -9
x= -9-9
x= -18
at an ice cream parlor a sundae is $1.25 more than the cost of a cone. if three cones and two sundaes cost $8.00. find the cost of a sundae and the cost of a cone.
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!
Answer:
THANKS FOR GIVING BRAINLIEST.
So we need to first find out f(7)
That would be if you look at the line its -1 on the y.
g(-1) on the line is 1 on x
10*-1+9*1
= -10+9
answer is -1
Answer:
10* f(7) +9* g(-1) = -1
Step-by-step explanation:
f(7) = -1, g(-1) = 1
10* f(7) +9* g(-1) = 10*(-1) +9*1 = -10 + 9 = -1
Which of the following functions is graphed below?
Answer:
B
Step-by-step explanation:
there's no point on x^2 +3 at 4 so x < 4 making it B
find the value of each trigonometric ratio part 2
Answer:
15/17
12/37
12/13
20/21
Step-by-step explanation:
5)
cos A = adj/hyp = 15/17
6)
cos C = adj/hyp = 12/37
7)
cos Z = adj/hyp = 36/39 = 12/13
8)
tan A = opp/adj = 20/21
Which is a zero of the quadratic function f(x) = 16x2 + 32x − 9? x = –5.25 x = –2.25 x = –1.25 x = –0.25
Answer:
answer b -2.25
Step-by-step explanation:
The zero of the quadratic function f(x) = 16x2 + 32x − 9 is -2.25
How to determine the zero?We have:
f(x) = 16x^2 + 32x - 9
Next, we test the options.
x = –5.25
f(-5.25) = 16(-5.25)^2 + 32(-5.25) - 9
Evaluate
f(-5.25) = 264 --- this is false
x = –2.25
f(-2.25) = 16(-2.25)^2 + 32(-2.25) - 9
Evaluate
f(-2.25) = 0 ---- this is true
Hence, the zero of the quadratic function f(x) = 16x2 + 32x − 9 is -2.25
Read more about quadratic function at:
https://brainly.com/question/1214333
#SPJ9
Help me please........
Answer:
A
Step-by-step explanation:
By the Pythagorean Theorem, you know that:
[tex]2^2+5^2=c^2[/tex]
Therefore, the correct answer is choice A. Hope this helps!
Answer: choice A
Step-by-step explanation:
Based on the pythagorean theorem which states
[tex]a^{2} +b^{2} =c^{2}[/tex]
c being the hypotenuse
so 2^2+5^2=c^2
and c would equal [tex]\sqrt{29}[/tex]
Find the domain of the graphed function A. 2 2 C. 1<= x <= 5 D. x is all real numbers