Rotating a point 180 degrees in the coordinate system just reverses the signs of the original coordinates. L=(8,-6), M=(8.-1), N=(5,-3) become L=(-8,6), M=(-8,1), N=(-5,3)
u- | 3v | - 4u +| -5v |
Evaluate
Answer:
-3u-2v
Step-by-step explanation:
u-(3v)-4u+(-5v)
u-4u-3v-5v
-3u-2v
how is 3×3×3×3×3×3×3 written in exponential form
Answer:
3 to the 7th power (7 is the exponent)
Step-by-step explanation:
have a wonderful
at what value of x, the function 2x^3/3+2x^2-6x+4 is minimum
Answer:
x=1
Step-by-step explanation:
We are given that
[tex]\frac{2x^3}{3}+2x^2-6x+4[/tex]
We have to find the value of x for which function is minimum.
Differentiate w.r.t x
[tex]f'(x)=2x^2+4x-6[/tex]
Substitute f'(x)=0
[tex]2x^2+4x-6=0[/tex]
[tex]x^2+2x-3=0[/tex]
[tex]x^2+3x-x-3=0[/tex]
[tex]x(x+3)-1(x+3)=0[/tex]
[tex](x-1)(x+3)=0[/tex]
[tex]x=1,-3[/tex]
Again, differentiate w.r.t x
[tex]f''(x)=4x+4[/tex]
[tex]f''(1)=4(1)+4=8>0[/tex]
[tex]f''(-3)=4(-3)+4=-8<0[/tex]
Hence, the function is minimum at x=1
Find the slope of the line that passes through the point (2,-5) and (7,1).
Answer:
step 1: X1=2 , y1=-5
step 2: X2=7, . y2=1
step 3: M=6/5
Step-by-step explanation:
just did it
the product of 9, and a number increased by 7, is 144. what is the number?
Answer:
somehow i got 0.7345
Step-by-step explanation:
I'm stuck on this!!can someone pls help me
Step-by-step explanation:
i and iii are correct. you are supposed to substitute and find the correct value
Who is awake need help with math points and brainlest
Answer:
4/8 = 9/n the first fraction is the height of the small shape to the height of the big shape and the second fraction is the bottom of the small shape to the bottom of the big shape (n)
Step-by-step explanation:
are the terms 2x3y and 2yxlike terms? Explain. (2 points)
Math Short Answer Rubric (2 points)
Points Awarded
Criteria
2.
The ansieris correct the scent made neos while solving
nearse sous hatte sicent sec
ng skills and easoning
Answer:
Step-by-step explanation:
2x^3y and 2yx are not like terms since x^3 can't be added to x since it's not x^3 but x^2.
a square plot is 14 meters long. Find its area?
Answer:
196
area of square = a^2
=14^2
=196
Answer:
area of square=length^2
as length is 14m
so area of square plot =14^2=196m^2
final ans/area of plot=196m^2
2(a + 5) – 4 = 2.a +2.5 –4 +
distributive property
distributive property
commutative property
associative property
Answer:
distributive property
Step-by-step explanation:
2(a+5)
2 is being distributed
Which graph represents the function f(x) =three-halves(2)x?
Answer:
wheres the graph?
Step-by-step explanation:
Answer:
The last graph on edge 2021
Step-by-step explanation:
How much net work is required to accelerate a 1000 kg from 20 m/s to 30
m/s?
Answer:
Work= force(F) * distance (s)
weight is a force and so
F=weight=mass *acceleration due to gravity
=1000*10=10000N
S=?
To find s,
F= ma
a=F/m=10000/10
a=10m/s²
Using Newton's third equation of motion
v²= u²+2as
30²= 20²+2*10*s
900–400=20s
500=20s
s=500/20= 25m
Work =F*s
Work=10000*25
Work= 250000J or 250KJ
Step-by-step explanation:
(x ^ 4 + 1) / (x + 1)
synthetic division
X-4/x-3 is less than 2x-1/2
Answer:
yes
Step-by-step explanation:
yes
A. Identify which of the following points: (2,-5),(4,1),(3, 3),(6,3) are solutions of the linear equation: 2x - y = Graph each point that is a solution of the linear equation from Part A.
Answer: It will be (2,-5) and (6,3) because they are one the slope line
Step-by-step explanation:
Hope is Helped
It’s a long question THERE IS A PIC
9514 1404 393
Answer:
1.7 degrees is warmer than -3.4 degrees
Step-by-step explanation:
You can find these two numbers on a number line. Warmer (and greater) is to the right.
In a race between 18 people, how many ways can the top 5 finishers be arranged?
1,028,160
8,568
742,560
73,440
Answer:
73,440
Step-by-step explanation:
Answer:
1,028,160
Step-by-step explanation:
Find the value of x in the given
right triangle.
х
37°
10
X = [?]
Enter your answer as a decimal rounded to the nearest 10th
Answer:
cos37=10/y
0.8=10/y
y=12.5
y²=10²+x²
x=12.5²-10²
56.25
Step-by-step explanation:
Identify the pairs of corresponding angles and corresponding sides. It may help to rotate the shapes so they are facing the same direction.
In a particular class of 24 students, 13 are men. What fraction of the students in the
class are women?
Answer:
11/24
Step-by-step explanation:
24 students
13 of them are men
24 - 13 to find the remaining students which are women
24 - 13 = 11
so 11/24
t=bd+M solving M what's the answer
Answer:
m=−bd+t
Step-by-step explanation:
t=bd+m
flip equation
bd+m=t
Step 2: Add -bd to both sides.
bd+m+−bd=t+−bd
m=−bd+t
On solving for M, we get -
M = t - bd
We have the following expression -
t = bd + M.
We have to solve for ' M '.
Solve for x : nx + a = [tex]$\pi[/tex].On solving, we get -
nx + a = [tex]$\pi[/tex]
x = [tex]$\frac{\pi -a}{n}[/tex]
According to the question, we have -
t = bd + M
t - bd = M
M = t - bd
Hence, on solving for M, we get -
M = t - bd
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Find the quotient. 5/6 divided by 1/6
Answer:
5
6
÷
1
6
=
5
6
×
6
1
=
5 × 6
6 × 1
=
30
6
=
30 ÷ 6
6 ÷ 6
= 5
the awnser would be 5
Step-by-step explanation:
Answer:
5/6 x 6/1=30/6=5 The answer is 5
Step-by-step explanation:
Mark brainliest please
HELPPPPP SOMEONE HELP AND I WILL MARK BRAINLIST!!!
Answer:
Angle B and Angle D are both 101 degrees
Step-by-step explanation:
Consecutive Angles in a parallelogram are supplementary (add up to 180 degrees).
Given that fact, we can deduce the measure of angle B.
180-79=101.
Angle D has the same setup since Angle D and C are consecutive along with Angle C and B.
180-79=101.
Therefore, both Angle B and D are 101 degrees.
Any help Will be super appreciated, I love you guys
Answer:
70°
Step-by-step explanation:
<GER and IGE< are supplementary angles which means that their sum is equal to 180°
180 - 130 = 70°
A Cepheid variable star is a star whose brightness alternately increases and decreases. Suppose that Cephei Joe is a star for which the interval between times of maximum brightness is 6 days. Its average brightness is 3.5 and the brightness changes by /-0.25. Using this data, we can construct a mathematical model for the brightness of Cephei Joe at time t, where t is measured in days: B(t)=4.2 +0.45sin(2pit/4.4)
A) Find the rate of change of the brightness after t days.
B) Find the rate of increase after one day.
Answer:
a) The rate of change of the brightness after t days is [tex]B^{\prime}(t) = 0.204525\pi\cos{(0.4545\pi t)}[/tex]
b) The rate of increase after one day is of 0.0915.
Step-by-step explanation:
The brightness after t days is given by:
[tex]B(t) = 4.2 + 0.45\sin{(\frac{2\pi t}{4.4})} = 4.2 + 0.45\sin{(0.4545\pi t)}[/tex]
A) Find the rate of change of the brightness after t days.
This is [tex]B^{\prime}(t)[/tex]
The derivative of a constant is 0, the derivative of [tex]\sin{at}[/tex] is [tex]a\cos{at}[/tex]
So, in this case, we have that:
[tex]B^{\prime}(t) = 0.45*0.4545\pi\cos{(0.4545\pi t)} = 0.204525\pi\cos{(0.4545\pi t)}[/tex]
The rate of change of the brightness after t days is [tex]B^{\prime}(t) = 0.204525\pi\cos{(0.4545\pi t)}[/tex]
B) Find the rate of increase after one day.
This is [tex]B^{\prime}(1)[/tex]. So
[tex]B^{\prime}(1) = 0.204525\pi\cos{(0.4545\pi)} = 0.0915[/tex]
The rate of increase after one day is of 0.0915.
Reflect a figure with vertices A(1,2) B (3,6), C(-1,2), and D(-2,-2)
across the x-axis. Find the coordinates of the new image.
A) C(-1,2) --> C' (-1,-2)
B) B(3,6) --> B' (3,-6)
C) A(1,2) --> A' (1,-2)
D) D(-2,-2)--> D' (-2,2)
Answer:
1,2 = 1,negative2
3,6 = 3,negative 6
-1,2 = negative 1, negative 2
-2,-2 = negative2, 2
Step-by-step explanation:
Sorry all i could do was reflect the coordinates across the x-axis.
The figure reflected along x-axis will have vertices A(1, -2), B (3, -6), C(-1, -2), and D(-2, 2).
What is reflection along the x-axis?When we reflect a figure along the x-axis the coordinate point of y changes its sign, (x, y) becomes (x, - y).
Think of holding the x-axis with two fingers and rotating it.
Given, we reflect a figure with vertices A(1,2) B (3,6), C(-1,2), and D(-2,-2)
across the x-axis.
∴ The rotated coordinate will be A(1, -2), B (3, -6), C(-1, -2), and D(-2, 2).
learn more about translation here :
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jessica earned 70% on an exam. if she earned 14 points, what was the total number of points possible on the exam?
Answer:
20
Step-by-step explanation:
you just divid the number of points earned (14), by the percent earned (70). This gives you the total becuase you would divid 14 by the total to get 70.
I need help thanks so much
Answer:
9
Step-by-step explanation:
The triangle provided is an equilateral one, which means that the length of all sides is equal.
Let's start by taking two and finding x.
8x+1 = 3x+6 (Subtract 3x from both sides)
5x+1 = 6 (Subtract 1 from both sides)
5x = 5 (Divide 5 from both sides)
x = 1
Now we substitute x in all the equations to find the length.
8(1) + 1 = 9
3(1) + 6 = 9
4(1) + 5 = 9
Length = 9
4)
Which expression is equivalent to 3x + x + y?
A)
4xy
B)
5xy
0
3 + xy
Highlight
D)
4x + y
Time
Remaining
Answer:
D.) 4x + y
Step-by-step explanation:
3x + x + y
Add 3 x and x .
4 x + y
Write a system of equations. Reserved seat tickets for the football game cost $4.00 each and general admission tickets cost $3.00 each. After the game is over, the turnstile count shows 1787 people attended the game. The total receipts were $5792. WRITE BOTH EQUATIONS FOR THIS SYSTEM.
Answer:
Step-by-step explanation:
If you are looking for an equation then it is:
4x + 3y = 1787 (Where x is the reserved seat tickets and y is general admission)
and $4x + $3y = $5792