Answer:
Step-by-step explanation:
C = 3t - 1 + t^6
D = 2t + 7
2C - 2D
2(3t - 1 + t^6) - 2(2t + 7)
6t -2 + 2t^6 - 4t - 14
2t^6 + 2t - 16
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
C = 3t - 1 + t^6
D = 2t + 7
2C = 2 ( 3t - 1 + [tex]t^6[/tex] )
2D = 2 (2t + 7)
The expression that equals 2C - 2D is
2t - 16 + 2[tex]t^6[/tex].
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
C = 3t - 1 + t^6
D = 2t + 7
Now,
2C = 2 ( 3t - 1 + [tex]t^6[/tex] )
2D = 2 (2t + 7)
Now,
2C - 2D
= 2 ( 3t - 1 + [tex]t^6[/tex] ) - 2 ( 2t + 7 )
= 6t - 2 + 2[tex]t^6[/tex] - 4t - 14
= 2t - 16 + 2[tex]t^6[/tex]
Thus,
C = 3t - 1 + t^6
D = 2t + 7
2C = 2 ( 3t - 1 + [tex]t^6[/tex] )
2D = 2 (2t + 7)
The expression that equals 2C - 2D is
2t - 16 + 2[tex]t^6[/tex].
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When Sandy bought a dress, she paid an 8% sales tax of $2.40.
What was the original price of the dress?
Answer:
$30.00
Step-by-step explanation:
price of dress x 8% = $2.40
price of dress = 2.40/.08
price of dress = $30.00
Javier is writing the following proof:
HELLP MEE
The triangles ΔABE and ΔDCE are congruent to each other by the SAS postulate. Then the correct option is B.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.
The ratio of the matching sides will remain constant if two triangles are comparable to one another.
The triangles are ΔABE and ΔDCE.
In triangles ΔABE and ΔDCE
AE = EC (given)
∠AEB = ∠DEC (vertically opposite angles)
BE = DE (midpoint theorem)
The triangles ΔABE and ΔDCE are congruent to each other by the SAS postulate. Then the correct option is B.
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which figure can be produced by a rotation and reflection of figure A ?
Answer:
It can produce the shape triangle
The number of hours, h, it takes for a block of ice to melt varies inversely as the temperature, t. If it takes 3 hours for a
square inch of ice to melt at 60 degrees, find the constant of proportionality
a. 150
c. 210
b. 180
d. 200
Answer:
180
Step-by-step explanation:
hours = constant / temperature hours varies inversely as the temperature
3 = c / 60
c (constant) = 3 * 60 = 180
Answer:
b. 180
Step-by-step explanation:
If f(x) = 3x+ 5 and g(x) = – 2x2 – 5x + 3, find (f + g)(x).
Answer: 1/8
Step-by-step explanation:(f÷g)(x) =
f(x) / g(x) =
2x / 22x
When we divide expressions with like bases, we subtract the exponents.
2(x - 2x) =
2-x
Now we substitute x = 3
So (f÷g)(3)
2-3
When we have a negative exponent, we perform the reciprocal of the expression and remove the negative sign from the exponent.
1/(23) =
1/8
Ali has 3 different coins (10p, 50p and £1).
He chooses one, two or three of the coins.
Write down all the amounts of money he could make.
Note: Please separate your amounts with a comma and specify the units (eg. 20p, £1.90).
10 + 50 = 60
£1.00 convert into indian paise = 83p
10+50+83=143
Find dcq pls thanks so much
Answer:
arc ABC = 196°
∠DCQ = 47°
Step-by-step explanation:
arc AD = 70°
∠D = 1/2 arc ABC = 98°
arc ABC = 98° * 2 = 196°
arc CD = 360° - arc AD - arc ABC = 360°-70°-196° = 94°
tangent chord angle DCQ = 1/2 arc CD = 1/2 * 94° = 47°
Need Help plzzzzzzxxxz
Answer:
[tex]VW = 50[/tex]
Step-by-step explanation:
Given
The attached triangle
Required
Find VW
To find VW, we make use of the following equivalent ratios.
[tex]YX : XW = ZX : XV[/tex]
Where:
[tex]YX = ZX - ZY = 42 - 28 = 14[/tex]
[tex]XV = XW + VW = 25 + VW[/tex]
So, we have:
[tex]14 : 25 = 42 : 25 + VW[/tex]
Express as fraction
[tex]\frac{14 }{ 25 }= \frac{42 }{ 25 + VW}[/tex]
Divide both sides by 14
[tex]\frac{1}{ 25 }= \frac{3}{ 25 + VW}[/tex]
Cross multiply
[tex](25 + VW) * 1 = 3 * 25[/tex]
[tex]25 + VW = 75[/tex]
Solve for VW
[tex]VW = 75 -25[/tex]
[tex]VW = 50[/tex]
The graph of quadratic function f is shown on the grid. 5 -3 -12 5 u 6 Which of these best represents the domain of f? А -5.5 < x < 1.5 B All real numbers less than or equal to 3 C All real numbers D y <3
Answer:
C: All real numbers.
Step-by-step explanation:
Domain means the interval of x=values that the function resides in. Since this quadratic function can go to both positive and negative infinity, there are no limits to the x-values so therefore the domain is all real numbers.
WILL GIVE 40 BRAINLY
(08.03)Consider the following pair of equations: y = −2x + 8 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
[tex](3,2)[/tex]
Step-by-step explanation:
The method of variable substitution is a way of solving a system of equations. It involves solving one equation for a variable and then substituting in the expression that represents the value of the solved variable into the other equation. After doing so, one can solve for the unknown variable and then backsolve for the other variable.
[tex]y=-2x+8\\y=x-1[/tex]
In this system, the second equation is already solved for (y), thus one can substitute that expression into the other equation in the system.
[tex]x-1 = -2x + 8[/tex]
Now solve using inverse operations,
[tex]x -1 = -2x + 8\\+2x\\\\3x - 1 = 8\\+1\\\\3x =9\\/3\\\\x = 3[/tex]
Backsolve to find the value of (y), substitute in the value of (x), and solve for the value of (y).
[tex]y=x - 1\\[/tex]
Substitute,
[tex]y=(3)-1[/tex]
Solve,
[tex]y=2[/tex]
Thus, the answer to this system of equations is the following, [tex](3,2)[/tex].
Answer:
(x = 3 and y = 2)
Step-by-step explanation:
Ok, we have our 2 equations...
y = -2x + 8
y = x - 1
Lets solve them
y = -2x + 8 , y = x - 1
They both equal y so I can put them together to equal out. Now our equation is...
x - 1 = -2x + 8
The next step is to get x on one side by itself, so change the negative symbol on -2 to addition...
3x - 1 = 8
Next step is to add 1 on both sides...
3x = 9
Divide both sides by 3...
x = 3
Now to do the other equation, which is easier.
y = x (3) - 1
or
y = 2
Both are solved and we have ...
(x = 3 and y = 2)
A fast-pitch softball diamond is a 60 foot square with a base at each corner.
If the catcher throws directly from home plate to second, how many feet will
the ball travel? (Round to the nearest foot.)
60 ft.
60 t
Answer here
Answer:
The correct answers is 85.
Step-by-step explanation:
a^2+b^2=c^2
60^2+60^2=\sqrt(7200)=84.85 but in here we are rounding to the nearest foot , which will be 85.
rose can make 5 3/4 bookmarks in one hour . How many bookmarks can she make in 3 1/2 hours
Answer:
I haven't done that type of math in a while but I cam up with 21 bookmarks
hi y’all sorry for the bad picture but what else would be an answer??
( 2 - 3x ) ( 2 + 3x )
( a - b )( a + b ) = a² - b²
2² - 3x²
4 - 9x² Ans .Identify the rational numbers as positive or negative.
Answer:
Step-by-step explanation:
We have to follow these rules:
+/+ = +
-/- = +
+/- = -
-/+ = -
so
positive numbers:
+2/+3 ; -2/-3 ; -1/-3 ; +1/+3
negative numbers:
+2/-3 ; -2/+3 ; -1/+3 ; +1/-3
If you answer this for me you will get brainless
Answer:
50.27
Step-by-step explanation:
A=πr2=π·42≈50.26548
Corresponding Angles are congruent.
Which angle corresponds with <3?
Answer:
Angle 5 ,
is corresponds with angle 3
hope it helps
Answer:
<5
Step-by-step explanation:
angles correspondants
Taylor cuts 1/3 sheet of construction paper for an arts and crafts project.
HELP PLS, The cosine of
Answer:
add/hyp
Step-by-step explanation:
using SOHCAHTOA cosine of an angle A will be adjacent/ hypotenus
This is a cross section of the design of a bookshelf.
Which is the closest to the length,in inches,of the brace indicated by BC in the sketch?
Answer:
25 in
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2} \\15^{2} +20^{2} =c^{2} \\225+400=c^{2} \\c^{2} =625\\c=\sqrt{625} \\c=25[/tex]
Find the value of x in the triangle shown below 4 3
Answer: 5
Step-by-step explanation: I took the test
Please help me fast i need help but please no links
Answer:
dont click that other guys link its an ip grabber
Step-by-step explanation:
what is 3x +3? x=5 i need ot know
If x=5 then the answer would be 18. 3 times 5 is 15 +3=18
Answer:
3x + 3
if the letter "x " is 5 then we replace the x in the equation
3( 5 ) + 3
15 + 3 = 18
Step-by-step explanation:
i hope it helps you =)
Pls help extra points
Answer:
3,6,9,27 and 2,4,6,18
Step-by-step explanation:
It simple
Jason has a part-time job. The table below shows the number of hours he worked and how much money he earned on three different days.
Answer:
Pretty sure it's 9.75
Step-by-step explanation:
39.00 divided by 4 = 9.75
Which function could be a stretch of the exponential
decay function shown on the graph?
5
O x) = 2(6)
O nx) = 2 (6)
O Rx) = 20
O )=
Mark this and retum
Save and Exit
Next
Submit
Answer: I beleve it is c hope this helps
Step-by-step explanation:
The transformation of the function with vertical stretching is given by the relation f ( x ) = 2 ( 1/6 )ˣ
How does the transformation of a function happen?The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units: y=f(x+c) (same output, but c units earlier)
Right shift by c units: y=f(x-c)(same output, but c units late)
Vertical shift:
Up by d units: y = f(x) + d
Down by d units: y = f(x) - d
Stretching:
Vertical stretch by a factor k: y = k × f(x)
Horizontal stretch by a factor k: y = f(x/k)
Given data ,
Let the parent function be represented as f ( x )
Now , the value of f ( x ) is
f ( x ) = ( 1/6 )ˣ be equation (1)
And , on stretching the function by a vertical factor of 2 , we get
f ( x ) = 2 ( 1/6 )ˣ be equation (2)
Therefore , the value of f ( x ) is 2 ( 1/6 )ˣ and the graph is plotted
Hence , the transformed function is f ( x ) = 2 ( 1/6 )ˣ
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The height of a plant, in inches, p years after planting it is given by the polynomial function R(p)=−2p2+270p. Find the height of the plant when p=90 years.
Answer:
8100 inches
Step-by-step explanation:
A function assigns the values. The height of the plant after 90 years will be 8100 inches.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
Given that the height of a plant, in inches, p years after planting is given by the polynomial function R(p)= −2p²+270p.
Now, the height of the plant after 90 years can be written by substituting the value of p as 90. Therefore, the height of the plant after 90 years is,
R(p)= −2p²+270p
R(90)= −2(90)²+270(90)
= −2(8100) + 24,300
= −16,200 + 24,300
= 8100 inches
Hence, the height of the plant after 90 years will be 8100 inches.
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Julio has started his very own floral business. He sells centerpieces for $19.50 each. His fixed costs are $500 per
month, and each centerpiece cost $8 to produce.
Determine your break-even point. Suppose you wish to break even by selling only 25 centerpieces. At what price
would you need to sell each centerpiece?
a. Julio must sell 25 centerpieces at $35 each to break even.
b Julio must sell 25 centerpieces at $25 each to break even.
C. Julio must sell 25 centerpieces at $40 each to break even.
d. Julio must sell 25 centerpieces at $28 each to break even.
What are the coordinates of point A?
A: (- 2, -6)
B: (- 6, -2)
C: (- 6, -3)
D: (- 3, -6)
Answer correctly for 50 points.
Answer falsely , then get ready for instant consequences.
The x value is first and the y value is second.point A is at (-3,-6)
Help plsssss no links plss
First step to solve this equation x-5=7-2x
Answer:
The answer is Add 2x to both sides of the equation
Step-by-step explanation: