9514 1404 393
Answer:
b = -0.0014a +215211.36 °FStep-by-step explanation:
We are given two points: (a, b) = (8100, 203.66) and (4700, 208.42). We can use these in the 2-point form of the equation for a line
y = (y2 -y1)/(x2 -x1)(x -x1) +y1 . . . . . . line through (x1, y1) and (x2, y2)
Using the given values, we have ...
b = (208.42 -203.66)/(4700 -8100)(a -8100) +203.66
b = 4.76/-3400(a -8100) +203.66
b = -0.0014a +215 . . . . . simplify
__
At 2600 ft, the boiling point is ...
b = -0.0014(2600) +215 = 211.36 °F
Find the perimeter of the shaded region of this composite figure.
Answer:
perimeter of shaded region:
area of rectangle- area of semicircle
l×b‐(pie r²) diameter of circle‐6m; Radius‐3
8×6‐(3.14×3×3)
42— 28.26=13.74m
HOPE IT WILL HELP YOU
I need help please
Answer: SAS
Explanation: There are two sides that are congruent and there is one vertical angle between them which are always congruent.
zora recently got an afterschool job to save money to buy a car. She opened a savings account and deposits a fixed amount each week so that she can quickly meet her savings goal. The table below shows the relationship.
Answer:
40
Step-by-step explanation:
The initial value of the function is 40, which represents the amount of money she deposits each week
Divide 6 divided by 3/5
Answer only if u know please:)
Answer:
The answer is 10 or 10/1
30 cents in each dollar is a paid tax. what fraction is paid in tax? what percentage is not paid in tax?please i need an answer within 10 minutes I'm In an exam
Answer:
30 cents of a dollar is 30% tax paid and 70% not paid.
A dollar is 100 cents.
Step-by-step explanation:
Is this a function? Yes or No?!
{(1, 14), (2, 28), (3, 42), (4, 52), 5, 52)}
Answer:
Yes
Step-by-step explanation:
This is a function because each x value is given one y value. More simply, no x value was repeated.
can someone motivate me to do my math homework?!
Write the slope-intercept form of the equation of the line given the slope -7 and y-intercept is 4.
y = -3x
y = 11
y = 4x - 7
y = -7x + 4
------------------------------------------------------------------------------------------------------
We are given:-
[tex]\bigstar[/tex]Slope :- -7
[tex]\bigstar[/tex] y-intercept:- 4
To find:-
[tex]\bigstar[/tex] the line's equation (in slope intercept form)
Slope intercept form looks like so:-
[tex]\bigstar[/tex]y=mx+b
where
m -> slope & b -> y-intercept
Plug in the values:-
(instead of m, plug in -7, and instead of b, plug in 4:
[tex]\bigstar{\boxed{\pmb{y=-7x+4}}[/tex]
-------------------------------------------------------------------------------------
note:-Hope everything's clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)
Prove that (x+y)(x-y)+(y+z)(y-z)+(z+x)(z-x)=0
Answer:
x=0 x=y=z. with these presumed variable amounts, one can conclude that the equation you asked is equivalent to 0
Answer:
Step-by-step explanation:
(x+y)(x-y)+(y+z)(y-z)+(z+x)(z-x)
=x²-y²+y²-z²+z²-x²
=0
Harold and his friend Bill each collect vintage action figures. Harold already has
18 action figures and adds 3 more figures to his collection each month. Bill
already has 24 action figures and adds 2 more to his collection each month. Let x
represent the number of months, and y represent the number of action figures.
Which equations can be used to find how long it will take before the friends each
have the same number of action figures?
Harold: y = 3x + 18
Bill: y = 2x+24
Hope this helps with your mid-term too guys !
A password is 4 characters long, consisting of 2 letters and 2 numbers. The password must begin and end with a
letter. If numbers can be repeated but letters cannot, how many possibilities are there?
a. 65,000
b. 60,840
c. 58,500
d. 52,650
Answer:
a.
65,000
Step-by-step explanation:
There are 65000 possibilities of 4 character-password
What is a password?A password is a security code that is used for verifying identities
The password has 4 characters.
The password must begin and end with a letter.
So the selections are:
First = 26
Last = 25
The other selections are:
Second = 10 digits
Third = 10 digits
So, the number of password is:
Password = 26 * 10 * 10 * 25
Evaluate
Password = 65000
Hence, there are 65000 possibilities of 4 character-password
Read more about arrangements at:
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PLS HELP !! I WILL GIVE BRAINLIEST !!! I JUST NEED THE ANSWER WITH A SENTENCE EXPLANATION !!!
Answer:
Blue
Step-by-step explanation:
Hard to explain just trust.
Answer:
Blue
Step-by-step explanation:
because A has a right angle so it's
does 3,34 satisfy the equation y= 8x + 10
Answer:
Let y=34 and x=3
Step-by-step explanation:
y = 8x + 10
34 = 8 (3) + 10
34 = 24 + 10
34 = 34
Hence,3 and 34 satisfies this equation.
1/3+ 1/8 show your work a with equation
please hurry
Answer: 11/21
Step-by-step explanation:
Answer:
11/24 or 0.453
Step-by-step explanation:
1/3 + 1/8
1/3 × 8/8 = 8/24
1/8 × 3/3 = 3/24
8/24 + 3/24 = 11/24
I really need help with this.
Simplify the following equation (2^3)^-2
Dinner at your grandfather's favorite restaurant now costs $25.25 and has been increasing steadily at 4% per year. How much did it cost 35 years ago when he was courti
your grandmother?
Which graph represents the function r(x) = |x -21-1
+
+
-6-5-4-3-2-1,
।
+4
1Y
45
1
-1
1123
45
6
3-2
-IN
-2
-
.
O
The graph that represents the function is graph (a)
How to determine the graph?The function is given as:
r(x) = |x -2|-1
The above function is an absolute value function that is shifted to the right by 2 units, and shifted down by 1 units from its parent function f(x) = |x|
Hence, the graph that represents the function is graph (a)
Read more about absolute value graphs at:
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PLEASE HELP ME ASAP!!!! My entire grade depends on these questions and I need to show the work that go me there
I know it is a long one, but I am giving away all of my points!!! I know most of the answers, but for all exept the graphing questions the work needs to be shown!
Consider the quadratic function.
f(x)=-(x+4) (x-1)
(a) What are the x-intercepts and y-intercept?
(b) What is the equation of the axis of symmetry?
(c) What are the coordinates of the vertex?
(d) Graph the function on the coordinate plane. Include the axis of symmetry.
Based on a poll of 1000 residents, a newspaper article claims that 62% of the residents in town favor the
development of a recreational park on the west side of town. A community action group interested in
preserving the environment claims that 45% of the town’s residents favor the development of a recreational
park.
To determine whether the sample supports the population proportion, a simulation of 100 trials is run, each
with a sample of 200, using the point estimate of the population. The minimum sample proportion from the
simulation is 0.46 and the maximum sample proportion is 0.76.
(a) What is the point estimate of the population?
(b) The margin of error of the population proportion is found using an estimate of the standard deviation.
What is the interval estimate of the true population proportion?
(c) The margin of error of the population proportion is found using the half the range.
What is the interval estimate of the true population proportion?
(d) Is the community action group’s claim likely based on either interval estimate of the true population
proportion? Explain.
Solve the system of equations. Show your work.
y=x^2-3x+4
x+y=4
Answer:
Answers are in bold
Step-by-step explanation:
Part 1A
Use the Zero Product Property to find the x-intercepts:
0=-(x+4)(x-1)
0=(x+4)(x-1)
0=(x+4)
-4=x
x=-4
0=(x-1)
1=x
x=1
So the x-intercepts are x=-4 and x=1 which is also (-4,0) and (1,0)
For the y-intercepts, plug in x=0:
f(x)=-(0+4)(0-1)
f(x)=(-4)(-1)
f(x)=4
So the y-intercept is y=4 which is also (0,4)
Part 1B
In general, the axis of symmetry is equal to x=h in the equation y=(x-h)^2+k
For a parabola, the axis of symmetry is equal to x=-b/2a, so we expand the given equation and then plug in the values of "a" and "b" to get the axis of symmetry:
f(x)=-(x+4)(x-1)
f(x)=-(x^2+3x-4)
f(x)=-x^2-3x+4
So now we know a=-1 and b=-3, therefore we can plug them in:
x=-b/2a
x=-(-3)/2(-1)
x=3/-2
x=-3/2
x=-1.5
So the equation of the axis of symmetry is x=-1.5
Part 1C
We'll use the equation x=-b/2a to get the x-coordinate for the vertex (which we already know is x=-1.5), then plug in that value of x in the original equation to get the y-coordinate for the vertex:
f(x)=-(-1.5+4)(-1.5+1)
f(x)=-(2.5)(-0.5)
f(x)=-(-1.25)
f(x)=1.25 <-- y-coordinate
So the coordinates of the vertex are (-1.5,1.25)
Part 1D
See the image below
I'll let someone else do the last 4 questions as I am unable to answer them.
Which of the following terms correctly describe the object below?
Check all that apply.
O A. Solid
B. Pyramid
c. Prism
OD. Polyhedron
E. Polygon
OO
O F. Triangle
Answer:
A. Solid
B. Pyramid
c. Prism
Step-by-step explanation:
Hope it helps you in your learning process.
The terms that correctly describe the object are prism, pyramid, and solid.
Options A, B, and C are the correct answer.
What is a prism?A prism is a three-dimensional object.
There are triangular prism and rectangular prism.
We have,
A prism is a solid geometric shape that has two identical parallel bases, which are typically polygons, and the sides of the shape are parallelograms.
A pyramid is a solid geometric shape that has a polygonal base and triangular faces that meet at a common point called the apex.
A solid is a three-dimensional object that occupies space and has a definite shape and volume.
A polyhedron is a three-dimensional solid that has flat faces, straight edges, and vertices (corners) where the edges meet.
A polygon is a two-dimensional shape that has straight sides and angles and is typically closed (meaning that its sides connect to form a closed shape).
A triangle is a three-sided polygon, meaning it has three straight sides and three angles.
Thus,
The terms that correctly describe the object are prism, pyramid, and solid.
Learn more about prism here:
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#SPJ7
help plzzzzzzzzzzzzzz
Answer:
i am not sure try 56
Step-by-step explanation:
Hope this helps!:)
URGENT!
How do you I know if there's 2 possible triangles for an ambiguous case?
Answer: ?Once you find the value of your angle, subtract it from 180° to find the possible second angle. Add the new angle to the original angle. If their sum is less than 180°, you have two valid answers. If the sum is over 180°, then the second angle is not valid??????
Step-by-step explanation:
Y=-2x+9 answer to this question
Answer:
5.5
Step-by-step explanation:
Explain why 186, 426 is divisible by both 3 and 9
Answer:
If the sum of the digits is divisible 3 and 9
Step-by-step explanation:
The height of a firework shot upward from the ground with the initial velocity of 10meters per second is represented by the function h(t) = - 16t2 + 4t How long did it take the firework to reach the ground
Answer:
0.375 seconds
Step-by-step explanation:
In simple terms, to find the time it took to reach the ground, we need to find t from the equation.
If we differentiate h with respect to t we will get the velocity with which the fireworks is moving at.
[tex]h(t) = - 16t^2 + 4t.\\dh/dt =-32t +4[/tex]
We can now equate this to its velocity and solve for t
10 = -32t +4
t = 0.1875 ( time cannot be negative in value, so we ignore the negative sign)
Therefore, the time it took the fireworks to reach the ground is = 2 x 0.1875= 0.375 seconds.
(We need to account for the fact that the fireworks went up and came down)
HELP HELP PLEASE IM BEGGING YOUUU
Answer:
Area=615.75
Step-by-step explanation:
A=πr2
Seriously I have helped you twice in 5 minutes.
are you smarter than a 7th grader get your answers by answering this question please please please please please
Answer:
F
Step-by-step explanation:
8 - (2-3) -1 = 8
6 - (-2) = 8
8-(2-3)-1=6-(-2)
A model car is built to a scale of 1 in. : 2.5 ft. If the model is 5.8 in. Long how long is the car in real life?
Answer:
14.5 ft
Step-by-step explanation:
We are told that the model car is built to a scale of 1 in. : 2.5 ft.
That means 1 inches represents 2.5 ft in actual measurement.
Thus, for a 5.8 inch long model, the real life measurement is;
(5.8 inch × 2.5 ft)/1 inch = 14.5 ft
Can an isoceles triangle be an obtuse triangle? Explain.
Answer:
it can and cant at the same time.
Find the first five terms of the following sequence, not including the oth term:
t(n) = 25+ 8n
Answer:e
B
Step-by-step explanation:
Eb