per fluid ounce is 20 cents
A parabola has the focus at (4,6) and the directrix of Y equals -6
Answer:
y = (x-4)²
Step-by-step explanation:
vertex (h , k)
h = 4 .... axis of symmetry
k = (6 + -6) / 2 = 0 .... midpoint of focus and directrix
equation of parabola: y = (x-4)² y = (x-h)² + k
im struggling and need help fast please show work and tell me how to do it. no links
-22.8 = 6n check your solution
Answer:
-3.8=n
Step-by-step explanation:
My goal is to get n all by itself, but its multiplied by 6. If I do the inverse operation (which is division) on both sides I will get -22.8/6=n. Now I can just simply combine the like terms and finalize my answer. 6 * 3=18 but -22.8 is a decimal number so my answer will range from around 3.5-3.9. if I divide -22.8/6 I get -3.8. My final answer is n=-3.8
Algebraic expression for 3 more than x
Answer:
For example, the phrase "3 more than an unknown number" becomes the mathematical expression "x + 3." Because the unknown number has no explicitly stated value, we label it with a variable x. To get a value three more than x, simply add 3 to it.
hope it helps ya mate. ~^~
Answer:
3 + x
Step-by-step explanation:
"More than" means addition. 3 more than x is saying 3 plus x. In an algebraic expression, this would look like:
3 + x
This week only, the local coffee shop is reducing the price of a cup of coffee from $3.00 to $2.28. By what percentage is the price reduced?
Answer:
31.6% decrease
Step-by-step explanation:
percent of change = difference between original and new values divided by the original value
n = % change
n = 0.72/2.28
n = .3157
n = 31.6%
Find the distance between (-7, -2) and (13, -23)
Answer:
5,030?
Step-by-step explanation:
Um..Please help me with this...
Answer:
2,1 4,2 6,3 8,4 10,5 12,6 14,7 16,8 18,9 20,10 etc.
Step-by-step explanation:
Find the total surface area of this cylinder.
Give your answer to 1 decimal place.
24 cm
18 cm
(it's not 2262 or 2021.9 I've already tried those)
Answer:
Step-by-step explanation:
1. Find the circumference of the cylinder: C = 2πr
2. Multiply this result by the height of the cylinder: A = 2πr·h
3. To this result add the surface areas (there are two) of the ends of the cylinder: 2πrh + 2πr²
This is the correct general formula for the surface area of a cylinder of radius r and height h. If you want specific numbers, please share the values of r and h.
Insert brackets to make the calculation correct
[tex]100 - 4 + {3}^{2} = 51[/tex]
Answer:
[tex]100 - {(3+ 4)}^{2} [/tex]
A taxi company charges $2.00 per ride plus
$0.30 for each of a mile ridden. If a taxi
ride costs $20.00, how many miles long was
the ride?
(17-1) Find the perimeter of this polygon.
9 ft
18 ft
9 ft
18 ft
Answer:
9ft is hiii
Step-by-step explanation:
If bookshelf A is 6 feet long and bookshelf B is 8 feet long, what is the length of bookshelf C?
A.14
B.12
C.16
D.10
Help me please
Answer:
3.5 feet = 3 feet 6 inches
3 * 12 = 36
36 + 6 = 42 inches long
42 / 5/8 → 42 * 8/5 = 42*8/5
336 / 5 = 67.2
We can't put up part of a book, so we can fit 67 books.
Step-by-step explanation:
Kirk made the graph to show his prediction of a population of bacteria over time. Which function best models the data in the graph?
mc001-1. jpg
mc001-3. jpg
mc001-2. jpg
mc001-4. jpg
Jana predicts that the population, y, will grow according to y = 12 log(x + 1) + 10, where x is the time in minutes. How much greater does Kirk’s model predict the population will be after 60 minutes than Jana’s model?
✔ greater by about 50 bacteria
Answer:
greater by about 50 bacteria
hope this helps,
T
Step-by-step explanation:
Populations can be modeled by exponential functions and logarithm functions.
Kirk's function is: [tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]Kirk’s model predict the population will be greater than about 50 bacteria after 60 minutes than Jana’s modelKirk's graph is an exponential function, and it is represented as:
[tex]\mathbf{y = ab^x}[/tex]
From the graph (see attachment);
x = 0, when y =10.
So, we have:
[tex]\mathbf{10 = ab^0}[/tex]
[tex]\mathbf{10 = a\times 1}[/tex]
[tex]\mathbf{10 = a}[/tex]
Rewrite as:
[tex]\mathbf{a = 10 }[/tex]
Substitute [tex]\mathbf{a = 10 }[/tex] in [tex]\mathbf{y = ab^x}[/tex]
So, we have:
[tex]\mathbf{y = 10(b)^x}[/tex]
x = 20, when y =20.
[tex]\mathbf{20 = 10(b)^{20}}[/tex]
Divide both sides by 10
[tex]\mathbf{2 = b^{20}}[/tex]
Take 20th root of both sides
[tex]\mathbf{b = 2^{\frac{1}{20}}}[/tex]
Substitute [tex]\mathbf{b = 2^{\frac{1}{20}}}[/tex] in [tex]\mathbf{y = 10(b)^x}[/tex]
[tex]\mathbf{y = 10(2^{\frac{1}{20}})^x}[/tex]
[tex]\mathbf{y = (10)2^{\frac{x}{20}}}[/tex]
Represent as function
[tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]
So, Kirk's function is: [tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]
When x = 60, we have:
[tex]\mathbf{f(60) = (10)2^{\frac{60}{20}}}[/tex]
[tex]\mathbf{f(60) = (10)2^3}[/tex]
[tex]\mathbf{f(60) = (10)8}[/tex]
[tex]\mathbf{f(60) = 80}[/tex] ---- Kirk's model
For Jana's model, we have:
[tex]\mathbf{y = 12log(x + 1) + 10}[/tex]
Substitute 60 for x
[tex]\mathbf{y = 12log(60 + 1) + 10}[/tex]
[tex]\mathbf{y = 12log(61) + 10}[/tex]
Using a calculator, we have:
[tex]\mathbf{y \approx 31}[/tex] --- Jana's model
Calculate the difference between both models
[tex]\mathbf{d = 80 - 31}[/tex]
[tex]\mathbf{d = 49}[/tex]
Approximate
[tex]\mathbf{d \approx 50}[/tex]
Hence, Kirk’s model predict the population will be greater than about 50 bacteria after 60 minutes than Jana’s model
Read more about population models at:
https://brainly.com/question/8993571
Will give brainliest for help with Geometry
Answer for first question:
tangent of P= 4/3
cosine of P= 3/5
sine of P= 4/5
Explanation:
tangent = opposite/ adjacent
cosine = adjacent/ hypotenuse
sine = opposite/ hypotenuse
2nd question: x=12
Explanation: When you have a 45-45-90 degree angle the hypotenuse will always be twice the base of the triangle and the longer leg will always be √2 times the base. Here you have the measurement of one of the longer sides- 6√2. Because we have this measurement, we know the base is going to be 6 and the hypotenuse, x, will be 12.
3rd question: cos y
Explanation: Let's give the triangle some measurements to make this easier.
The hypotenuse= 5.
The adjacent side of x= 3.
The opposite side of x= 4.
sine= opposite/ hypotenuse = sin x = 4/5
cosine= adjacent/ hypotenuse = cos x = 3/5
As you see, 3/5 and 4/5 are not equal, but when you try cos y and sin x. You will find that they are equal.
what's the answer ?
[tex] \sqrt{36 \times 9} [/tex]
Answer:
36/2=18
18/2=9
9/3=3
3/3=1
List out the factors used: 2, 2, 3 & 3.
Pick one out of pairs of factors available: 2 & 3.
Multiply them: 2×3 = 6
6 is the square root of 36.
Step-by-step explanation:
hope it helps
please mark brainliest
A freezer was set at 0 C, sophia reset it to 8.5 C. Would the temperature in the freezer likey rise or drop? By how many degrees?
Answer:
Step-by-step explanation:
1) the temperature rise, because 8.5 is C higher than 0 C
2) 8.5 - 0 = 8.5
So it rised by 8.5 degrees ( to know how many dgrees is is rised subtract the second number from the first number)
solve for x! i will give brainiest please!
Answer:
x=74 degrees
Step-by-step explanation:
What are the x and y coordinartes of the point at 4pi/3
Please help ASAP !!!
Answer:
B
Step-by-step explanation:
give me brainliest 5 star and thank!
which value from the set makes 8y=4 true?
Answer:
B. 1/2
Step-by-step explanation:
because 8y=4
solve for y which is,
8/8y = 4/8 ( devide by 8 to remove 8 from y to let y alone, so what you to on the right hand side you do on the left and vice versa, so devide 4/8 as well.)
y = 4/8
y = 1 /2 ( simplify )
make sure answer is in degrees.
sin^-1(sin 17°)
Answer:
uhm 0 degrees
Step-by-step explanation:
The value of the inverse trigonometric expression sin⁻¹(sin 17°) will be 17°.
What is inverse trigonometry?Simply put, inverse trigonometric operations are the opposites of the fundamental trigonometric parameters sine, cosine, secant, cosecant, tangent, and cotangent.
The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The inverse trigonometric expression is given below.
⇒ sin⁻¹(sin 17°)
We know that the value of sin⁻¹(sin θ) is θ.
Then the value of the inverse trigonometric expression will be
⇒ sin⁻¹(sin 17°)
⇒ 17°
Thus, the value of the inverse trigonometric expression sin⁻¹(sin 17°) will be 17°.
More about the inverse trigonometry link is given below.
https://brainly.com/question/20595059
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As you can tell I’m back to help my idiotic Brother just do the first 3 ty
1:plus 4 2: times 2 3:minus 10
the exact diameter of a circle with a circumference of 39
quick please
7.find the area of the shaded region of the rectangle:
Answer:
6x+2
-2x+1
=
4x+1
just find the area of each and subtract the non-shaded one from the shades area.
a bag contains 4 red marbles and 3 blue marbles. Another bag contains 7 green marbles and 6 yellow marbles. You randomly pick one marble from each bag. One marble is blue and second marble is yellow.
Answer: 18/91 or ≈ 0.2
Step-by-step explanation:
Bag one: 4 red + 3 blue = 7 total
Bag two: 7 green + 6 yellow = 13 total
probability of picking blue from first bag: 3/7
probability of picking yellow from second bag: 6/13
3/7*6/13 = 18/91 or about 0.2 chance
Could someone please answer this, and give an explanation. So I can fully understand it.
the coordinates of point D are (-10, -3) and the coordinates for point G are (-2, -3). Where is point D in relation to point G?
Answer: Choice C
Point D is 8 units to the left of point G
=================================================
Explanation:
Refer to the diagram below. I've graphed both points on the same xy grid. We can draw a horizontal line through points D and G to form a number line of sorts. Count the number of spaces along this number line to go from G to D. You should count 8 spaces to the left.
Effectively, this is the same as drawing a number line and plotting -10 and -2 on this number line. We only worry about the x coordinates of the two points since the y coordinates are the same (both are y = -3). Note how -10 is eight units to the left of -2 on the number line.
help me i need help will mark brainliest
Answer:
C
Step-by-step explanation:
i am smart
Answer: -3? i think..
Step-by-step explanation:
Prove this polynomial identity
Answer:
[tex] {(x - y)}^{2} = (x - y)(x - y) \\ = ( {x}^{2} - xy - xy + {y}^{2} ) \\ = ( {x}^{2} - 2xy + {y}^{2} )[/tex]
what is the area of the triangle.
Answer:
A=hbb= 2
Step-by-step explanation:
your welcome plz brainlist
Answer:
21.75u2
Step-by-step explanation:
first use pythag for this
use rule c2=b2+a2
reverse the rule so that
b2=c2-a2
b2=100-81
b2=19
b=4.35
how u got the height of the triangle
use formula bh/2
10x4.35/2
=43.5/2
=21.75u2
What is the measure of XZ?
A. 36°
B. 144°
C. 72°
D. 18°
Answer:
C.72
Step-by-step explanation:
angle XYZ is an inscribed angle and arc XZ is the arc it intercepts
If you didn't know the measure of an inscribed angle is equal to half the measure of its arc it intercepts or an intercepted arc equals twice the measure of its inscribed angle
Hence, angle XYZ * 2= arc XZ
If Angle XYZ = 36
then 36 * 2 = arc XZ
36 * 2 = 72
hence the answer is C
The measure of arc is 72 degree, the correct option is C.
What is an arc?An arc is formed by two radii and their intercepted part on the circumference.
According to the theorem of arc and subtended angles, the central angle subtended by the arc is double the angle subtended by it on the circumference.
The angle subtended by arc XZ on the circumference is 36 degree.
The angle subtended by the arc at the center is = 2 * 36 = 72 degree.
The arc subtended by the arc at the center of the circle is the measure of the arc.
To know more about Arc
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