Answer:
(2x+14) + (8x-4) = P
Step-by-step explanation:
P stands for perimiter
The expression for the length of fencing to go around the outer edges is 10x+10.
What is the perimeter of a rectangle?The perimeter of a rectangle is the twice the sum of length and width.Perimeter of a rectangle = 2(l+b)Length of the rectangular field is given by x+7
and width is given by 4x-2
Length of fencing outer edges is equal to its perimeter.
Perimeter of a rectangle = 2(l+b)
=2(x+7+4x-2)
=2(5x+5)
=10x+10
Hence, the length of fencing outer edges is 10x+10
Learn more about perimeter of a rectangle here:
https://brainly.com/question/13723940
#SPJ2
h(x)=x-4 Determine whether it is in the domain of h or not.
Answer:
-4
Step-by-step explanation:
Answer: im pretty sure it is a domain
Step-by-step explanation:
What is the volume of the cube shown? 2 1/4
Volume of a cube is Volume = S^3, where S is the length of one side.
Volume = 2 1/4^3 = 2 1/4 x 2 1/4 x 2 1/4 = 11 25/64 in^3
The answer is D.
Answer: 30 3/8
Step-by-step explanation:
solve for x 6000=-2x^2+20x-42
Answer:
3 or 7
Step-by-step explanation:
[tex]-2x^2+20x-42=0\\-2(x^2-10x+21)=0\\-2(x-7)(x-3)=0\\x=7, 3[/tex]
Hope this helps!
What’s the answer to this
Answer B
Step-by-step explanation:
2x+1+14
Answer:
B.)
Step-by-step explanation:
B)2x+15
6/7 times 3/4=?????????
Answer:
[tex] \frac{9}{14} [/tex]
Step-by-step explanation:
times top numbers and bottom numbers
6 × 3 = 18
7 × 4 = 28
18/28
*simplify*
9/14
Plot - 7 in the complex plane.
Answer:
see below
Step-by-step explanation:
-7 = -7 + 0i
On a plane mark -7 on real axis and go 0 units on imaginary axis
f(x) = (x+2)^2+4 . what are the coordinates of the vertex?
Answer:
[tex](-2,\, 4)[/tex].
Step-by-step explanation:
To find the vertex of this parabola, start by rewriting it in the vertex form [tex]f(x) = a\, (x - h)^2 + k[/tex].
Start with the original expression:
[tex]f(x) = (x + 2)^2 + 4[/tex].
Note that in the vertex form, the sign in front of [tex]h[/tex] should be a minus. However, in [tex]f(x) = (x + 2)^2 + 4[/tex], the sign in front of [tex]2[/tex] is a plus. Since adding
[tex]f(x) = (x - (-2))^2 + 4[/tex].
Therefore:
[tex]h = -2[/tex],[tex]k = 4[/tex].Hence, [tex](-2,\, 4)[/tex] is the vertex of this parabola.
The base of a right triangle is 13 less than 2 times the height. The area of the triangle is 12 square cm. What is the height of the triangle in cm? *
Answer:
The height of the triangle is 8 cm
Step-by-step explanation:
First we need to write down the question in a mathematical format and then solve.
let b be the base of the triangle and h be the height of the triangle
"The base of a right triangle is 13 less than 2 times the height" can be written as
b = 2h - 13 -----------------------------------------------------(1)
"The area of the triangle is 12 square cm" can be written as;
area of the triangle = 12 cm²
but area of a triangle = [tex]\frac{1}{2}[/tex] ×b × h
This implies that
[tex]\frac{1}{2}[/tex] ×b × h = 12 cm²
bh = 24 cm² --------------------------------------------------(2)
substitute equation (1) in equation (2)
(2h - 13)h = 24
2h² - 13h = 24
2h² - 13h - 24 = 0 ----------------------------------------------(3)
The above is now a quadratic equation, so we will solve by completing the square method.
Find two numbers such that its product will give -48 and its sum will give -13
The two numbers are -16 and 3
Replace -13h by (-16h + 3h) in equation (3)
2h² - 13h - 24 = 0
2h² - 16h + 3h - 24 = 0
2h(h - 8) + 3(h-8) = 0
(h-8)(2h+3) = 0
either h-8 = 0
h = 8
OR
2h + 3 = 0
2h = -3
h =-3/8
There is no such thing as negative length, therefore h= 8 is the answer
The height of the triangle is 8 cm
Select the correct answer.
If a six-sided die is rolled 30 times, how many times can you expect to get a 6?
Answer:
5
Step-by-step explanation:
the probability of getting a 6 every time you roll the die once is just 1/6. multiply that by 30 and we get our answer, which is 5 times.
4 + d = -12
I need work and answer
WILL GIVE BRAINLIEST
Answer:
d= -16
Step-by-step explanation:
-16 +4=-12
Answer:
d=−16
Step-by-step explanation:
d+4−4=−12−4
d=−16
what is the series written in sigma notation?
Answer:
Correct option: D
Step-by-step explanation:
First we need to find the rate of the series, and we can do that subtracting one term by the term before:
Second term minus first: 13/10 - 1/2 = 13/10 - 5/10 = 8/10 = 4/5
Third term minus second: 21/10 - 13/10 = 8/10 = 4/5
So the series increases by 4/5 for every term, and the first term is 1/2
We also need to find the number of terms of this series.
The last term is 93/10, so we have that:
1/2 + (4/5)*k = 93/10
(4/5)k = 88/10
k = 11
The index of the summatory should go from 0 to 11.
So the correct option is D
Write an equation of the line that passes through (2,−3) and is perpendicular to the line y=−2x−3.
i dont understand your question
Nguyen is decorating the room for her sister’s baby shower party. She is wrapping Vietnamese conical hats in baby prints tissue paper to decorate the tables and some shelves in the wall. Each hat has a diameter of 16 inches and a height of 9 inches. If she wants to wrap 21 Vietnamese hats, how much tissue paper will she need?
Answer:
She needs 301.8 in² of tissue paper.
Step-by-step explanation:
In order to calculate the amount of tissue paper she needs to make 21 hats, we need to find the area of each hat and multiply it by the total number of hats she wants to make.
Since the Vietnamese conical hats are hollow and don't have a base, we need to find the area of the it's lateral walls, this is given by the following expression:
lateral area = pi*r*l
r = d/2 = 16/2 = 8 in
We were given the height, but we need the slant height, therefore:
l = sqrt(r² + h²) = sqrt(8² + 9²) = sqrt(64 + 81) = sqrt(145) = 12.041 in
Then the lateral area is:
lateral area = pi*8*12.0141 = 301.8 in²
She needs 301.8 in² of tissue paper.
Determine the center and radius of the following circle equation:
x2 + y2 - 4x + 20y + 55 = 0
Step-by-step explanation:
x2 - 4x +4 -4 + y2 + 20y +100 -100 + 55=0
(x-2)2 + (y+10)2 =49
center:(2,-10)
r=7
Enrollment in a dance studio has grown exponentially since the studio opened. A graph depicting this growth is shown. Determine the percentage rate of growth.
0.25%
1.25%
2.5%
25%
Answer:
Option (4). 25%
Step-by-step explanation:
The graph attached shows the exponential growth.
Let the graphed function is y = [tex](1+\frac{r}{100})^{t}[/tex]
Here 'r' = Rate of growth
t = Duration of time in years
y = enrollments after time 't' years
Graph shows at time 't' = 0 or initially number of enrollments = 20
After 8 years number of enrollments will be
120 = [tex]20(1+\frac{r}{100})^{8}[/tex]
[tex]\frac{120}{20}=(1+\frac{r}{100})^{8}[/tex]
6 = [tex](1+\frac{r}{100})^{8}[/tex]
log 6 = [tex]8\text{log}(1+\frac{r}{100})[/tex]
0.77815 = [tex]8\text{log}(1+\frac{r}{100})[/tex]
[tex]\text{log}(1+\frac{r}{100})[/tex] = 0.0972689
[tex](1+\frac{r}{100})=1.251[/tex]
[tex]\frac{r}{100}=0.251[/tex]
r = 25.1%
r ≈ 25%
Therefore, Option (4) will be the answer.
Answer:
25%
Step-by-step explanation:
did test and it was right
A bag of sweets contains coca cola bottles , milk bottles and jellybeans at a ratio of 3:7:5 there are 6 coca cola bottles how many milk bottles are there how many jelly beans are there
Answer:
Coca cola bottles = 6
Milk bottles = 14
Jellybeans = 10
Step-by-step explanation:
We are given that a bag of sweets contains coca cola bottles, milk bottles and jellybeans.
The ratio of these sweet bottles is given as,
3:7:5
It is known that there are 6 coca cola bottles.
We are asked to find the quantity of milk bottles and jellybeans.
Coca cola bottles:
Since the ration is 3:7:5
3 parts of coca cola bottle = 6
1 part of coca cola bottle = 6/3 = 2
Milk bottles:
So 7 parts of milk bottle = 7*2 = 14
Jellybeans:
So 5 parts of milk bottle = 5*2 = 10
Therefore,
Coca cola bottles = 6
Milk bottles = 14
Jellybeans = 10
Verification:
6:14:10
Simply the ratio by dividing it with 2
3:7:5
Which reduces to the given ratio hence results are correct.
Find the volume of a right circular cone that has a height of 10.5 in and a base with a circumference of 7.1 in. Round your answer to the nearest tenth of a cubic inch.
Answer:
14 cubic inches
Step-by-step explanation:
First, we have to find the radius from the circumference. We know that the circumference can be found using the equation c = 2pi(r). Set c equal to 7.1, and solve for r by dividing by 2pi.
Now, we have a radius of 1.13. Using this, we can plug the radius and the height into the equation used to find the volume of a cone: v = pi(r^2)(h/3)
This leads us to 14.04, or 14, when rounded to the nearest tenth of a cubic inch.
f(x) = 3^x; find f(0)
Answer:
f(0)=1
Step-by-step explanation:
The question asks us to find f(0). We want to find what f(x), or y is, when x is equal to 0.
f(x)=3^x
Therefore, we can substitute 0 in for x.
f(0)=3^0
Evaluate the exponent, 3^0.
Any number raised to the power of zero is equal to 1.
f(0)=1
Answer:
1
Step-by-step explanation:
f(0) = 3^0
f(0) = 1
anything to the 0th power = 1
A taxi cab company charges a flat amount of $5.00 plus a rate of $3.00 per mile traveled. Part A: If the total cost of the fare was $41.00, then which of the following equations can be used to determine the number of miles traveled, x?What is the total number of miles traveled, x, if the fare was $41.00?
Answer:
5 + 3x = 41
x = 12 miles
Step-by-step explanation:
A taxi cab company charges a flat amount of $5.00 plus a rate of $3.00 per mile traveled.
Let x is the number of miles traveled.
If the total cost of the fare was $41.00 then
5 + 3x = 41 eq. 1
The above equation can be used to determine the number of miles traveled.
Solving the equation for x,
5 + 3x = 41
3x = 41 - 5
3x = 36
x = 36/3
x = 12 miles
Therefore, 12 is the total number of miles traveled if the fare was $41.00.
f (x) = 3x^2 - 7x - 32
What is the value of f(-4)?
Answer:
f (-4) = 3x(-4)^2 - 7x(-4) - 32 = 44
Step-by-step explanation:
you should replace every x with the number given which is here equals -4
A furnace operates at 2,300°F. Before it can be used to extract metal from an ore, the temperature must be raised to 3,600°F. This takes place at a rate of 250°F per quarter-hour. Identify the slope and y-intercept in an equation for the temperature in terms of x quarter hours.
Enter your answer using the equation y=mx+b
Answer: google will help
Step-by-step explanation:
which expression is equivalent to 100n2-1
Answer:
10 x 10n^2 -1
Step-by-step explanation:
any expression as long as they equal the same as your equation (100n^2-1)
Answer:
(10n + 1)(10n - 1)
Step-by-step explanation:
the radius of a circle is 2 in what is the length of the 45 arc?
Answer:
1.5707
Step-by-step explanation:
i solved it using the formula :
[tex]2\pi \times r \frac{45}{360} [/tex]
Can somebody solve this...
Answer:
J-12-16KL(-12, -16)MOSorry. I cannot really the points and graphs clearly.
I hope I helped you! If my answer is correct, please mark me brainiest. Thanks!
Which equation can be used for x in the following diagram?
Answer:
x+ 4x-85 = 90
Step-by-step explanation:
The two angles are complementary so they add to 90 degrees
x+ 4x-85 = 90
Combine like terms
5x - 85 = 90
Add 85 to each side
5x = 175
Divide by 5
5x/5 =175/5
x =35
Answer:
x (4-85) = -81x
Step-by-step explanation:
Equation: x (4-85)
Answer: x (4-85)
1: Find the missing side
2: add the other numbers
Hope this helps.
2 triangular prisms and a cube. The cube is 2 by 2. The triangular prisms have rectangular sides of 3 by 5, 3 by 3, and 3 by 4. The triangular sides have a base of 3 and height of 4.
To find the surface area of the figure shown, Mia found the surface area of the two triangular prisms and the rectangular prism. From this, Mia subtracted 6 ft2. Did Mia make an error?
Mia should have subtracted 16 square feet.
Mia needs to subtract another 6 square feet.
Mia must calculate each triangle separately.
There is no error—Mia is correct.
Answer:B. Mia needs to subtract another 6 square feet.
Step-by-step explanation:
Answer:
yeah the dude above me is right
Step-by-step explanation:
b r u h moment compilation #27
NEED HELP ASAP ON TIMER 30 MINUTES LEFT
find the least common multiple (lcm) of:
25y^5 and 5xy and 2x^3y
Answer:
50 x^3 y^2
Step-by-step explanation:
25y^5 = 5*5 * y*y
5xy = 5*x*y
2x^3y = 2*x*x*x*y
The least common multiply is found by taking the least number of times each appears
5 appears 2 times
2 appears 1 time
x appears 3 times
y appears 2 times
5*5*2 * x*x*x * y*y
50 x^3 y^2
Answer:
50 x^3 y^2
Step-by-step explanation:
25y^5 = 5*5 * y*y
5xy = 5*x*y
2x^3y = 2*x*x*x*y
The least common multiply is found by taking the least number of times each appears
5 appears 2 times
2 appears 1 time
x appears 3 times
y appears 2 times
5*5*2 * x*x*x * y*y
50 x^3 y^2
What is the mean of the given data set. 39,82,74,96,64,52,74
Hey there!
Another word for the mean is the average. To find the mean in a set of numbers, you add up the numbers and then divide by the number of numbers!
39+82+74+96+64+52+74=481
Now, we see that we have seven numbers. So, we divide by seven!
481/7≈68.71 (rounded to nearest hundredth)
I hope that this helps!
What is the result of adding these two equations?
-2x + 7y = -5
-2.0 - 4y = 6
Answer:
[tex]y=-\frac{6x}{5}[/tex]
Step-by-step explanation:
[tex]-2x + 7y = -5\\-2.0 - 4y = 6[/tex]
[tex]y=-\frac{6x}{5}[/tex]
Let p=x^2-2p=x 2 −2p, equals, x, squared, minus, 2. Which equation is equivalent to (x^2-2)^2+18=9x^2-18(x 2 −2) 2 +18=9x 2 −18left parenthesis, x, squared, minus, 2, right parenthesis, squared, plus, 18, equals, 9, x, squared, minus, 18 in terms of ppp ?
Question:
Let [tex]p=x^2-2[/tex] .
Which equation is equivalent to in terms of p ?
Answer:
[tex]p^2+18=9p[/tex] or [tex]p^2+18 - 9p = 0[/tex]
Step-by-step explanation:
Given
[tex]p=x^2-2[/tex] .
Required
Find the equation equivalent to [tex](x^2-2)^2+18=9x^2-18[/tex]
To get the equation equivalent to the given expression, we simply simplify [tex](x^2-2)^2+18=9x^2-18[/tex] and solve in terms of p
[tex](x^2-2)^2+18=9x^2-18[/tex]
Factorize expression on the right hand side
[tex](x^2-2)^2+18=9(x^2-2)[/tex]
Substitute [tex]x^2 - 2[/tex] for p
[tex](x^2-2)^2+18=9(x^2-2)[/tex] becomes
[tex]p^2+18=9p[/tex]
Hence, equation [tex]p^2+18=9p[/tex] is equivalent to [tex](x^2-2)^2+18=9x^2-18[/tex]
Solving further to get the value of p
[tex]p^2+18=9p[/tex]
Subtract 9p from both sides
[tex]p^2+18 - 9p = 9p - 9p[/tex]
[tex]p^2+18 - 9p = 0[/tex]
Rearrange
[tex]p^2 - 9p +18 = 0[/tex]
Factorize
[tex]p^2 - 6p - 3p +18 = 0[/tex]
[tex]p(p - 6) - 3(p -6) = 0[/tex]
[tex](p - 3)(p -6) = 0[/tex]
p - 3 = 0 or p - 6 = 0
p = 3 or p = 6
Answer:
p^2-18+9p=0
Step-by-step explanation:
Khan