GEOMETRY!! SOMEBODY PLEASE HELP ME ON THIS ITS URGENT! I NEED TO COMPLETE THE DILATIONS
Answers
im not going to give u the answer but all you do is
step by step :
#1. D2- (-6*2),(0*2)=(-12,0)
(3*2), (-9*2)= (6,-18)
(12*2),(4*2)=( 24,8)
Related Questions
The mass of the part of a metal rod that lies between its left end and a point x meters to the right is 3x^2 kg. Find the linear density when is 1 m, Where is the density the highest? The lowest?
Answers
Answer
6 kg/m
Step-by-step explanation:
The linear density is said to give the way the mass is changing it's position and it's a derivatives of mass m here which is differenciated with respect to x position
Given
mass m = 3x^2.
Density ρ= dm/dx =6x
Then if we substitute x=1 into above expresion we have
ρ(1) =6 Kg/m
ρ= 6Kg/m
Hence this is how fast is the mass changing at that position.
Please help, I really would love it
Answers
Answer:
A,C, and D I believe.
Step-by-step explanation:
Anyone help me here please!!!!
Answers
Answer:
here is a formulae
cos2A= 2cos square a -1
Step-by-step explanation:
as given cos A= 1/2 (a+1/a)
by simplifying
cosA =a²+1/2a
now by following the formulae
cos2A = 2cos²A-1
=2(a²+1/2a)² -1
=2(a⁴+2a²+1/4a²)-1
=a⁴+2a²+1/2a² -1
=a⁴+2a²+1-2a²/2a²
=a⁴+1/2a²
=1/2 (a⁴+1/a²)
=1/2(a⁴/a²+1/a²)
=1/2(a²+1/a²)
{proved}
please mark me as a brainilist...plzzz
thank uuu
Answer: see proof below
Step-by-step explanation:
Use the Double Angle Identity: cos 2A = 2cos²A - 1
Proof LHS → RHS
Given: [tex]\cos A=\dfrac{1}{2}\bigg(a+\dfrac{1}{a}\bigg)[/tex]
LHS: cos 2A
Double Angle Identity: 2(cos²A) - 1
[tex]=2\bigg(\dfrac{1}{2}\bigg(a+\dfrac{1}{a}\bigg)^2\bigg)-1[/tex]
Simplify: [tex]2\bigg(\dfrac{1}{4}\bigg(a^2+2+\dfrac{1}{a^2}\bigg)\bigg)-1[/tex]
[tex]=\dfrac{1}{2}\bigg(a^2+2+\dfrac{1}{a^2}\bigg)-1[/tex]
[tex]=\dfrac{1}{2}a^2+1+\dfrac{1}{2a^2}-1[/tex]
[tex]=\dfrac{1}{2}a^2+\dfrac{1}{2a^2}[/tex]
Factor: [tex]=\dfrac{1}{2}\bigg(a^2+\dfrac{1}{a^2}\bigg)[/tex]
[tex]\dfrac{1}{2}\bigg(a^2+\dfrac{1}{a^2}\bigg)=\dfrac{1}{2}\bigg(a^2+\dfrac{1}{a^2}\bigg)\quad \checkmark[/tex]
What is the multiplicative inverse of -0.7?
Answers
Answer:
The multiplicative inverse of -0.7 is -1/0.7
hope it helps
What is the solution to this equation?
X-7 = 18
A. X = 25
B. x= 35
C. x = 11
D. X = 9
Answers
Answer:
A
Step-by-step explanation:
x - 7 = 18
Adding 7 to both sides (to get rid of the -7 on the left side) gives us:
x - 7 + 7 = 18 + 7
x = 25
Answer:
25 is the correct answer
Step-by-step explanation:
i got it right on the test
In which number is the value of the 7 ten times the value of 7 in the number 1,273?
Answers
Answer:
1723
Step-by-step explanation:
10 x 70=700
Answer:
1723
Step-by-step explanation:
Evaluate (-B)2 for A = 5, B = -4, and C = 2.
16
0 -16
Answers
Answer:
[tex] \boxed{ \boxed{ \bold{ \sf{16}}}}[/tex]Step-by-step explanation:
Given , value of b = -4
To find : ( - b )²
plug the value of b
⇒[tex] \sf{( - {( - 4))}^{2} }[/tex]
we know that ,
[tex] \sf{( - ) \times ( - ) = ( + )}[/tex]
⇒[tex] \sf{ {4}^{2} }[/tex]
Evaluate the power
⇒[tex] \sf{16}[/tex]
Hope I helped!
Best regards!!
anyone know the answers to this ?!
Answers
Answer:
Hey there!
3 x 5/4 = 3 x 5 ÷ 4 = 5 x 3 ÷ 4
5 x 4/3 = 5 x 4 ÷ 3 = 4 x 5 ÷ 3
4 x 3/5 = 4 x 3 ÷ 5 = 4 x 3 ÷ 5
Hope this helps :)
Help please, w-5-4= -8-6w+8w?
Answers
Answer:
w = -1
Step-by-step explanation:
w-5-4= -8-6w+8w ⇒ simplifyw - 9 = - 8 + 2w ⇒ add 9 - 2w to both sidesw - 2w = - 8 + 9 ⇒ simplify-w = 1 ⇒ multiply both sides by -1w = -1 ⇒ answerAnswer:
[tex]\Huge \boxed{w=-1}[/tex]
Step-by-step explanation:
[tex]w-5-4= -8-6w+8w[/tex]
Combining like terms.
[tex]w-9= -8+2w[/tex]
Adding -w and 8 to both sides.
[tex]-9+8=2w-w[/tex]
[tex]-1=w[/tex]
help this is hard Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the equation below.
Answers
Answer:
x = [tex]-\frac{3}{b}[/tex]
x = -1
Step-by-step explanation:
The given equation is,
-2(bx - 5) = 16
Dividing by (-2) on both sides of the equation,
[tex]\frac{-2(bx-5)}{(-2)}=\frac{16}{(-2)}[/tex]
(bx - 5) = -8
By adding 5 on both the sides of the equation,
(bx - 5) + 5 = -8 + 5
bx = -3
Dividing by 'b' on both the sides of the equation,
[tex]\frac{bx}{b}=\frac{-3}{b}[/tex]
x = [tex]-\frac{3}{b}[/tex]
If b = 3,
x = [tex]-\frac{3}{3}[/tex]
x = -1
X + + x plus StartFraction x Over 7 EndFraction plus StartFraction 1 Over 11 EndFraction left-parenthesis x plus StartFraction x Over 7 EndFraction right-parenthesis equals 60.(x + ) = 60
Answers
Answer:
[tex]x = \frac{770}{16}[/tex]
Step-by-step explanation:
Given
[tex]x + \frac{x}{7} + \frac{1}{11} (x + \frac{x}{7}) = 60[/tex]
Required
Solve for x
[tex]x + \frac{x}{7} + \frac{1}{11} (x + \frac{x}{7}) = 60[/tex]
Start by solving the bracket [Take LCM]
[tex]x + \frac{x}{7} + \frac{1}{11} (\frac{7x + x}{7}) = 60[/tex]
[tex]x + \frac{x}{7} + \frac{1}{11} (\frac{8x}{7}) = 60[/tex]
Open the bracket
[tex]x + \frac{x}{7} + \frac{8x}{77} = 60[/tex]
Take LCM
[tex]\frac{77x + 11x + 8x}{77} = 60[/tex]
[tex]\frac{77x + 11x + 8x}{77} = 60[/tex]
[tex]\frac{96x}{77} = 60[/tex]
Multiply both sides by 77
[tex]77 * \frac{96x}{77} = 60 * 77[/tex]
[tex]96x = 60 * 77[/tex]
Divide both sides by 96
[tex]\frac{96x}{96} = \frac{60 * 77}{96}[/tex]
[tex]x = \frac{60 * 77}{96}[/tex]
Divide the numerator and denominator by 6
[tex]x = \frac{10 * 77}{16}[/tex]
[tex]x = \frac{770}{16}[/tex]
Answer:
48.125
Step-by-step explanation:
The Royal Fruit Company produces two types of fruit drinks. The first type is 70% pure fruit juice, and the second type is 95% pure fruit juice. The company is attempting to produce a fruit drink that contains 90% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 110 pints of a mixture that is pure fruit juice
Answers
Answer:
The pints of each of the two existing types of drinks are 22 and 88 respectively.
Step-by-step explanation:
We are given that the Royal Fruit Company produces two types of fruit drinks. The first type is 70% pure fruit juice, and the second type is 95% pure fruit juice. The company is attempting to produce a fruit drink that contains 90% pure fruit juice.
Let the first type of fruit drink pints in the mixture be 'x' and the second type of fruit drink pints in the mixture be 'y'.
So, according to the question;
The first condition states that we have to make 110 pints of a mixture of two types that is pure fruit juice, that means;x + y = 110
x = 110 - y ---------------- [equation 1]
The second condition states that the first type is 70% pure fruit juice, and the second type is 95% pure fruit juice, that means;[tex]0.70x+0.95y=0.90\times 110[/tex]
[tex]70x+95y=9900[/tex]
[tex]70(110-y)+95y=9900[/tex]
[tex]7700-70y+95y=9900[/tex]
[tex]25y=9900-7700[/tex]
[tex]y=\frac{2200}{25}[/tex]
y = 88
Now, putting the value of y in equation 1 we get;
x = 110 - y
x = 110 - 88 = 22
Hence, the pints of each of the two existing types of drinks are 22 and 88 respectively.
Using one complete sentence give a mathmatical definition of zero
Answers
Answer:
Zero is an integer which is indicated by the symbol 0 in numbers and it is used to indicate that the count of an item when there are non of the item present which is one of the reasons zero along with the fact that it is the number between positive and negative numbers, why it is not associated with a positive or negative sign.
Step-by-step explanation:
A number which is not zero is said to be a non-zero number and the roots of a function is known as the zeros of the function.
What value of x will make the angle between the pottery and the arrowhead measure 57
Answers
Answer:
x = 9
Step-by-step explanation:
Take the angle of LOJ (3x) and JOK (2x+12).
LOJ + JOK = LOK.
LOK = 57.
So, 3x + 2x + 12 = 57
3x + 2x = 5x
5x + 12 = 57
57 - 12 = 45
5x = 45
x= 9
HELP ASAP I HAVE 48 MINUTES LEFT
The graph of y = |xl is transformed as shown in the graph below. Which equation represents the transformed
function?
y=|1/4x|
y=|2x|
y=|4x|
y=|1/2x|
Answers
Answer:
y = |1/4x|
Step-by-step explanation:
The slope is 1/4
How can you invest your money as a student or a teenager???
Answers
Answer:
Buy stuff and sell them at a higher price
Step-by-step explanation:
Answer:
get a job
Step-by-step explanation:
In the problem below, AB, CD, and EF are two-digit numbers, where A, B, C, D, E and F represent distinct digits from 1 to 9. Is F prime? A B + C D E F B and D are consecutive integers. C = 8.
Answers
Answer:
When both the conditions hold true, F is prime.
Step-by-step explanation:
AB, CD, and EF are two-digit numbers, where A, B, C, D, E and F represent distinct digits from 1 to 9.
AB
+ CD
--------
EF
1st condition, B and D are consecutive.
Adding B and D gives us F.
Possible values can be (F being the unit value after adding not considering the carry over):
B + D = F
1+2=3
2+3=5
3+4=7
4+5=9
5+6=1
6+7=3
7+8=5
8+9=7
Here F is not prime (because 9 is not prime).
Now, let us consider the 2nd condition as well.
i.e. C = 8
For the following
AB
+ CD
--------
EF
C is 8 then A must be 1 because any value other than 1 for A will make the sum of A and C greater than 9 and there will be a carry which is not the case here.
So, E = 8 + 1 = 9
Now, B and D are consecutive and can not be 1, 8 or 9.
So, possible values are:
B + D = F
2 + 3 = 5
3 + 4 = 7
Here F is prime.
So, when both the conditions hold true, F is prime.
Solve. Write your answer in the simplest form using integers, fractions, and natural logarithms. 9=ex
x=
Thanks!
Answers
Answer:
x = ln9
Step-by-step explanation:
Using the rule of logarithms
log [tex]x^{n}[/tex] = nlogx , lne = 1
Given
[tex]e^{x}[/tex] = 9 ( take the ln of both sides )
ln[tex]e^{x}[/tex] = ln9, thus
xlne = ln9, that is
x = ln9
which expression is equivalent to 4n+ 28
A 28n + 4
B 4(n+28)
C 4( +7)
D 32
Answers
Answer:
It would be B
Step-by-step explanation:
ABCD is a square. Length of one diagonal is 5cm.
a) What is the length of AB
b) Find the perimeter of ABCD
c) Find the area of
Answers
Answer:
Below
Step-by-step explanation:
Let D be the diagonal of this square.
D forms with AB and BC a right triangle where D is the hypotenus.
We will apply then the Pythagorian theorem
●The Pythagorian theorem
● D^2 = AB^2 + BC^2
ABCD is a square, so AB=BC
● D^2 = AB^2 + AB^2
● D^2 = 2AB^2
We khow that is D= 5 cm
● 25 = 2AB^2
● 25/2 = AB^2
● 5/√2 = AB
AB is 5√2 cm
■■■■■■■■■■■■■■■■■■■■■■■■■
The perimeter is:
● P = 4AB
● P = 4×(5/√2)
● P = 20/√2
● P = 10×2/√2
● P = 10√2 cm
■■■■■■■■■■■■■■■■■■■■■■■■■■
The area is
● A = AB^2
● A = (5/√2)^2
● A = 25/2 cm^2
Answer:
Step-by-step explanation:
the sides of a square are equal ( AB=BC=CD=DA)
diagonal of the square creates two right angle triangle
to find the side of the triangle we apply the Pythagorean theorem:
a²+b²=c² ( let AB=a, and BC=b)
2a²=25 ( since AB=BC=a)
a²=25/2
a=(5√2)/2 cm
a=3.54 ( rounded to the nearest 10)
perimeter = 4a
P=4(5√2/2)
P=10√2 cm
Area=a²=(5√2/2)²=25/2=12.5 cm^2
what is the answer to |3x-4|=|3x-5|
Answers
Answer:
i think this is the answer
Answer:
the answer is [tex]\frac{3}{2}[/tex] or 1.5 or 1[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Please help me with this Operation: (-17+4+1-6)÷(-3)×(-1)?
Answers
Answer:
-6
Step-by-step explanation:
(-17+4+1-6)=-18
-18/-3=6
6*-1=-6
Answer:
-6
Step-by-step explanation:
(-17+4+1-6)÷(-3)×(-1)
PEMDAS
Parentheses first
(-17+4+1-6)÷(-3)×(-1)
Add and subtract inside the left parentheses
(-18)÷(-3)×(-1)
Multiply and divide from left to right
6 * -1
-6
what is the equivelent expression to 13a - 8a + 9b - 4b
Answers
Answer:
5a + 5b
Step-by-step explanation:
13a - 8a + 9b - 4b =
Combine like terms. 13a and -8a are like terms and can be combined.
9b and -4b are like terms and can be combined.
= 5a + 5b
Answer:
5a+5bStep-by-step explanation:
[tex]13a-8a+9b-4b\\\mathrm{Add\:similar\:elements:}\:13a-8a=5a\\=5a+9b-4b\\\mathrm{Add\:similar\:elements:}\:9b-4b=5b\\=5a+5b[/tex]
Evaluate. 5(−6)= ________
Answers
The evaluation of the numeric expression is:
5(−6) = -30
How to evaluate numeric expression?A numeric expression is a mathematical statement that involves only numbers and one or more operation symbols.
Examples of operation symbols are addition, subtraction, multiplication and division. It can also be expressed in the radical symbol (the square root symbol) or the absolute value symbol.
We can evaluate 5(−6) as follow:
5(−6) = 5 * (-6)
= -30
Learn more about numeric expression on:
https://brainly.com/question/4344214
#SPJ6
Find the measure of angle A. This is for my math class, and I’ve been stuck on this for a while. Please help!
Answers
Answer:
x = 7.6°, so A = 18.8°
Step-by-step explanation:
What we need to know in order to utilize algebra is the total sum of all triangle's angle. It's 180°. So, we can write
25 + 17x - 1 + 3x - 4 = 180
20x + 28 = 180
20x = 152
x = 7.6°
Now what you need to do is substitute 7.6° into each expression 17x - 1 and 3x - 4.
Someone help!!! Tyyy
Answers
Answer:79°
Step-by-step explanation:
Given the 124° angle, the other angle formed by that line and the top side of the square must be 56°, as they are supplementary angles (they must add up to 180°). This means that the angle formed by that same line and the bottom side of the square is also 56° since it is a corresponding angle and the top and bottom sides of a square are parallel. The angle that a diagonal of a square forms with the sides of a square is always 45°.
So now we have a triangle (in red in my diagram) with angles of 45°, 56°, and x°. The sum of the angles of a triangle must always equal 180°, so we solve for x:
56 + 45 + x = 180
x = 180 - 56 - 45 = 79
So angle x must be 79°.
Carrie spent 1/4 of her allowance on a shirt, 1/3 of her allowance on a skirt, and $8 on a belt. If she spent $22 in all, how much was Carrie’s allowance?
Answers
Answer:
$24
Step-by-step explanation:
1/4x + 1/3x + 8 = 22
1/4x + 1/3x = 7/12x
7/12x + 8 = 22
22 - 8 = 14
7/12x = 14
14/ 7/12
x = 24
Which series represents this situation?
1 + 1 · 7 + 1 · 72 + . . . 1 · 76
1 + 1 · 7 + 1 · 72 + . . . 1 · 77
7 + 1 · 7 + 1 · 72 + . . . 1 · 76
7 + 1 · 7 + 1 · 72 + . . . 1 · 77
Answers
Answer:
1 + 1 · 7 + 1 · 72 + . . . 1 · 76
Step-by-step explanation:
bc
Answer:
1 + 1 · 7 + 1 · 72 + . . . 1 · 76
Step-by-step explanation:
Hope this helps!
An economist wishes to conduct a survey in two different cities in the same county to determine the difference in the proportions of residents who believe that economy is improving under president Trump. A 99% confidence interval is to be constructed for the difference between the proportions. If the sample sizes for both cities are to be equal, find the minimum sample size needed for each city so that the margin of error not to exceed 6%.
Answers
Answer:
The minimum sample size needed for each city = 922
Step-by-step explanation:
From the information given:
the objective is to find the minimum sample size needed for each city so that the margin of error not to exceed 6%.
If we take a look at the question very well:
we are only given the confidence interval of 99% and the margin of error of 6%
we were not informed or given the value or estimate of any proportions>
so we assume that:
[tex]p_1 =q_ 1= p_2 = q_2 = 0.5[/tex]
At confidence interval of 0.99 , the level of significance = 1 - 0.99 = 0.01
The critical value for [tex]z_{\alpha/2} = z_{0.01 /2}[/tex]
= [tex]z_{0.005}[/tex] = 2.576
The minimum sample size needed can be calculated by using the formula :
[tex]n = \dfrac{z^2_{\alpha/2}}{E^2}(p_1q_1+p_2q_2)[/tex]
[tex]n = \dfrac{2.576^2}{0.06^2}((0.5 \times 0.5)+(0.5 \times 0.5))[/tex]
[tex]n = \dfrac{6.635776}{0.0036}(0.25+0.25)[/tex]
[tex]n =1843.271 \times (0.5)[/tex]
n = 921.63
n [tex]\simeq[/tex] 922
∴ The minimum sample size needed for each city = 922
Can y’all help me on this I just don’t understand it’s find su and m is the midpoint
Answers
Answer:
SU = 70
Step-by-step explanation:
First, we need to find the value of x. Since M is the midpoint of SU, that means that SM = MU, therefore:
x + 15 = 4x - 45
15 = 3x - 45
60 = 3x
x = 20
We know that SU = SM + MU = (x + 15) + (4x - 45) = 5x - 30 and that x = 20 so SU = 5x - 30 = 5 * 20 - 30 = 100 - 30 = 70.