Answer:
Please should we solve the equation or the angle?
1. What is the equation of a parabola that has a vertex at (-2, 4) and goes through the point (0,8)?
Answer:
y - k = (x + 2)^2
Step-by-step explanation:
The vertex equation of a vertical parabola is
y - k = a(x - h)^2, where (h, k) is the vertex.
We are given h = -2, k = 4, x = 0 and y = 8 and need to find the value of a.
8 - 4 = a(0 + 2)^2, or
4 = 4a, so a must be 1.
Then the desired equation is:
y - k = (x + 2)^2
can someone pls help ASAP :(
Answer:
20.5
Step-by-step explanation:
AB= Sqare root of 15^2 + 14^2
USe pythagoras' theorum
It cost Erica $9.75 for the ingredients to make 30 cupcakes. She sold them for $1.00 each. What was Erica’s total profit?
STEP BY STEP PLZZ PLEASE PLZZZZZ
Answer:
$30 (I think)
Step-by-step explanation:
because you have 30 cupcakes and selling 1 for a dollar but it may be $20.25 if you have to subtract the $9.75 that you used to buy the cupcakes
anyone know this?????
Answer:
WZX=57
Step-by-step explanation:
90-33 = 57
You don't have to use the equation unless you want to check yourself.
school x and school y play eachother in a competition school x has eight more points than school y school x has three times as many points as school y. how many points does each school have?
Answer:
3y+8=x
Step-by-step explanation:
School X School Y
y+8=x
3y=x
3y+8=x
Which number line shows the correct locations of all the given values?
Answer:
it would be c because it is plotted correctly
The volume of the oblique cylinder is 24 ft?,
Which statements are true? Check all that apply,
The height of the cylinder is 3.4 ft.
The diameter of the cylinder is about 4.5 ft.
3.4 ft
The diameter of the cylinder is about 3 ft.
The radius of the cylinder is about 6 ft.
A right cylinder with the same height and radius as
this oblique cylinder would also have a volume of
24 fri
Answer:
A, C, E
Step-by-step explanation:
Right on Edge
How many faces, vertices, and edges are in the figure below?
Answer:
faces = 7, vertices = 7, edges = 12
Step-by-step explanation:
i took the test just now :D (brainlest always acceptable! :D)
The number of faces, vertices, and edges are 8, 18 and 12.
We are given that;
The figure of hexagonal prism
Now,
A hexagonal prism is a 3D shape with
8 faces, 18 edges, and 12 vertices12.
The faces are 2 hexagons and 6 rectangles.
The figure below shows the faces, edges and vertices of a hexagonal prism.
Therefore, by the prism answer will be 8 faces, 18 edges, and 12 vertices12.
Learn more about rectangular prism;
https://brainly.com/question/15843335
#SPJ4
Write an equation of the line below.
Answer:
y = 4x-2
Step-by-step explanation:
y = mx+b
y = 4x+b
y = 4x-2
2. A triangle has the angle measures 40 degrees, 60 degrees, and x degrees. If the sum of the angle measures is equal to 180 degrees, which equation could be used to correctly solve for x? Mark all that apply. (2 Points)
1. X - 100 = 180
2. 180 = 40 + 60 + X
3. 100x = 180
4. X + 100 = 180
Answer:
2 and 4
Step-by-step explanation:
hi can someone help me with this?
Answer:
h = 4.5 units
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
Here A = 6.75 and b = 3 , then
[tex]\frac{1}{2}[/tex] × 3h = 6.75
1.5h = 6.75 ( divide both sides by 1.5 )
h = 4.5
we have
base [b]=3 units
height [h]=x units
area of triangle =6.75 square units
we have
area of triangle =1/2 b×h
6.75 square units =1/2×3×x
x=6.75×2/3=4.5units
so height is 4.5 units.
The length of a rectangle is 12 feet more than twice the width. The area of the rectangle is 320 square feet
f(x)=-2(x-4)^2+8 find the vertex
Set the polynomial equal to
y
to find the properties of the parabola.
y = -3(x+4)^2 - 8
Use the vertex form, y = a (x-h)^2 + k, to determine values of a,h and k
a = -2
h = -4
k = -8
Find the vertex (h,k)
(-4, -8)
As per the vertex form of a quadratic equation, the vertex of the given quadratic equation is (4, 8).
What is a quadratic equation?"A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where 'a' and 'b' are the coefficients, 'x' is the variable, and 'c' is the constant term. The first condition for an equation to be a quadratic equation is the coefficient of x² is a non-zero term(a ≠ 0)."
What is the vertex form of a quadratic equation?"The vertex form of a quadratic equation is:
y = a(x - h)² + k
Here, a, h, and k are real numbers, where a ≠ 0. x and y are variables.
Here, (h, k) is the vertex and (x, y) represents a point on the graph of the given equation."
Here, the given quadratic equation is:
y = f(x) = -2(x - 4)² + 8
By comparing it with the vertex form of a quadratic equation, we get:
h = 4, y = 8.
Therefore, the vertex(h, k) of the given quadratic equation is (4, 8).
Learn more about the vertex form of a quadratic equation here: https://brainly.com/question/27255597
#SPJ2
question is below!!!!
Answer:
Order the numbers from least to greatest.
75, 83, 89, 94, 98, 101, 105, 108, 111, 122, 125, 130
Minimum is 75
Q1 is 91.5
The median is 103.
Q3 is 116.5
Maximum is 130
Now, look at the answer choices.
B has the incorrect median
D has incorrect Q1.
A has incorrect Q3.
C is the answer.
Save
Submit
Kayla gave of a pan of brownies to Ella and of the pan to Eli. Which choice is the MOST reasonable for the part of the
pan of brownies Kayla gave away?
6
A
B)
D
E
The
N.
Answer:
its definetly 1/2 but i cant see the numbers but i had this question like 2 minutes ago
Step-by-step explanation:
nice to help a high schooler, make you think how hard high school will be
You finally got promoted to the next grade level. You and your friends go out to celebrate your success at Chuck E Cheeses. The total meal cost $70. There is a 15% tip with the meal. Which expression can you use to calculate the total cost of the meal with tip?
A. 0.15 (70)
B. 1.5 (70)
C. 1.15 (70)
D.11.5 (70)
Answer:
80 dollars and 50 cents.
Step-by-step explanation:
youd first multiply 70 by .15 which would equal 10.5. then add the 70 and 10.5 together. then you get your answer. so the expression youd want to use would be "x=70×.15"
What is the value of
N?
1/2
3/2
3/3
3
c is the answer
Answer:
Step-by-step explanation:
I put a picture of the question but I am confused on how to find the value of x.If you could provide a explanation that would be amazing! :D
Answer:
Hope this helps :)
Step-by-step explanation:
Supplementary angles are angles whose measures sum to 180°.
equation for supplementary angle~ a+b=180
Example:
2x+(2x–2)=180
4x–2=180
4x=182
x=45.5
Answer:
x = 100.5
Step-by-step explanation:
Supplementary angles are two angles that have a sum of 180°. THIS MEANS WE'RE ADDING.
We can use distributive property to solve this equation.
x + (x-21) = 180°.
x + x - 21 = 180°.
Now, we can combine like terms.
2x - 21 = 180.
Since there is a subtraction sign in front of the number 21, we do the opposite operation (addition).
Next, we add 21 to 180.
180 + 21 = 201.
2x = 201
Lastly, we divide 201 by 2.
The quotient is 100.5.
100.5 is the final answer.
Therefore, 100.5 is the value of x.
We can check our answer to make sure.
(100.5 - 21) + 100.5 =
79.5 + 100.5 = 180°.
There are 3 yellow, 5 red, 4 blue, and 8 green marbles in a bag. Once a marble is selected, it is not replaced. Find the probability of selecting a green marble and then a red marble.
Group of answer choices
2/19
40/400
13/400
1/10
Answer:
iiiiiiii want to beeeeeee ninjaaaaaaa
Step-by-step explanation:
A soccer dome shaped like a hemisphere has a volume of 450,000 m^3. What is the area of its field? Use 3.14 for pi
Answer:
Step-by-step explanation:
450,000=2/3(3.14)r
450,000 times 3/2=2/3(3.14)r times 3/2
675,000=3.14r
675,000/3.14=3.14r/3.14
about 214968.15287=r
So now we know r. We can use it to find the area of the circle
Pi times r squared
3.14 times 214968.15287 squared
area equals about 15573.44815
The area of the hemisphere is 45065.41
How to determine the area?The given parameters are:
Shape = Hemisphere
Volume = 450000
The volume is calculated as:
Volume = 2/3pi r^3
This gives
450,000=2/3 * 3.14 * r^3
Solve for r^3
r^3 = 450000 * 3/(2 * 3.14)
This gives
r^3 = 214968.152
Take the cube roots
r = 59.9
The area is then calculated as;
Area = 4pi r^2
This gives
Area = 4 * 3.14 * 59.9^2
Evaluate
Area = 45065.41
Hence, the area of the hemisphere is 45065.41
Read more about areas at:
https://brainly.com/question/24487155
what is the area of the white boarder? 2cm 8cm 9cm 15cm
the length and width plss
Question 2 (1 point)
The function f(x) = 0.5x + 3 is used to estimate the number of pounds of potatoes a caterer plans to make depending on the number of
people being served, X. The mathematical domain for the function is the set of real numbers.
Which statement describes the limitation for the reasonable domain compared to the mathematical domain?
Options:
The reasonable domain contains only positive real numbers.
The reasonable domain contains only positive whole numbers.
The reasonable domain contains only real numbers greater than 3.
The reasonable domain contains only rational numbers greater than 3.
Answer:
(b) The reasonable domain contains only positive whole numbers.
Step-by-step explanation:
Given
[tex]f(x) = 0.5x + 3[/tex]
Required
True statement about the limitation of the domain
Since the domain (x) represents people, then it must be a positive whole numbers
This eliminates options (a) and (c)
The range of the function is not given. So, we can assume that any number of people can be present.
This eliminates option (d).
Hence: (b) answers the question
Find the total amount given the original price and tip rate. Round to the nearest cent if necessary. Original price: $41.32 Tip: 15%
Answer:
$6.20
Step-by-step explanation:
We can covert 15% to a decimal by moving the decimal point two places over.
15% = 0.15
41.32 X 0.15 = 6.198
6.198 ≈ $6.20
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Original price: $41.32
Tip: 15% = %6.189
Total amount = = Original price + Tip amount
The total amount is $47.509
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Original price: $41.32
Tip: 15%
Now,
The amount of the tip.
= 15% of 41.32
= 15/100 x 41.32
= $6.189
The total amount.
= Original price + Tip amount
= 41.32 + 6.189
= $47.509
Thus,
Original price: $41.32
Tip: 15% = %6.189
Total amount = = Original price + Tip amount
The total amount is $47.509
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ5
i’ll mark branliest plzzz answer
Answer:
AB = 10 m
Step-by-step explanation:
Given that <ACB = <ECD, then triangles ABC and EDC are similar.
Let the height of the solar panel (AB) be represented by x. Thus by comparing the triangles, we have;
[tex]\frac{x}{6}[/tex] = [tex]\frac{45}{75}[/tex]
45x = 6 x 75
45x = 450
x = [tex]\frac{450}{45}[/tex]
x = 10
The height of the solar panel is determined to be 10 m.
Will give brainliest
Answer choices:
Yes
No
Answer:
No
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
25/2 of 40kg please help
[tex] \bf \huge 500 \: k.g[/tex]
Step-by-step explanation:
Given that:25/2 of 40 k.gTo find:simplify Explanation:⟼ 25/2 of 40 k.g
⟼ [tex]\cancel{25/2}[/tex] × 40 k.g
⟼ 12•5 × 40 k.g
⟼ 500 k.g
∴ 25/2 × 40 k.g = 500 k.g
Hence simplified ☑️Answer:
500kg
Step-by-step explanation:
as we know "OF" in mathematics means to multiply, so you have two ways
FIRST WAY:
Simplify 25/2 x 40so it will be 25 x 20 and answer will be = 500SECOND WAY:
25/2 x 40 = 1000/2 simplify= 500i hope its clear
what is the height of the tree
A. 156 ft
B. 100 ft
C. 80 ft
D. 25 ft
Answer:
B
Step-by-step explanation:
You first must find the conversion rate. Since you know a 4 ft tall object produces a 5 foot long shadow, you simply divide 4 by 5. This gives you 0.8. Now that you have your conversion rate, you multiply it by the shadow the tree casts, that being 125, and your answer is B, 100.
Please help me ASAP!
Answer:
C
Step-by-step explanation:
6 is the smallest so the first one would be c because it is the smallest
In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings. What is the probability that a student who has a brother also has a sister?
Answer: 11
Students have both a brother and a sister
Step-by-step explanation:
I don't think probability should be used for this question because the answer is quite clear
So in a class of 25 students
5 students don't have a sibling
So 25-5=20
Total number of siblings=14+17=31 siblings in total
So 20 people have 31 siblings
31-20=11
So the answer should be 11
In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings. The probability that a student who has a brother also has a sister is 11/25.
How to calculate the probability of an event?Suppose that there are finite elementary events in the sample space of the considered experiment, and all are equally likely.
Then, suppose we want to find the probability of an event E.
Then, its probability is given as
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{n(E)}{n(S)}[/tex]
where favorable cases are those elementary events that belong to E, and total cases are the size of the sample space.
In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings.
So in a class of 25 students
5 students don't have a sibling
then, 25-5=20
Total number of siblings = 14+17
= 31 siblings in total
So, 20 people have 31 siblings
= 31 - 20
= 11
So, the probability that a student who has a brother also has a sister
= 11/ 25.
Learn more about probability here:
brainly.com/question/1210781
#SPJ2
Factorise 5a^2-6a
^^^^^^^^
Answer:
a(5a - 6)
Step-by-step explanation:
5a² - 6a
Common factor: a
Factored:
a(5a - 6)