Answer:
Excuse me! plz provide the graphs 2.
can you write to me explaining this please
Answer:
In addition, from the response shown, using a graphical calculator brings the following benefits:
1) You can write the system of linear equations as big as you want. This is: systems 3 * 3, 4 * 4, 5 * 5.
2) The response to systems of equations greater than 2 * 2 can be complicated when you graph the solution, therefore, the graphing calculator can be much more efficient in these cases.
3) You can write the linear equations in any way. Resolving by hand you should probably rewrite the system of equations to find the solution.
Step-by-step explanation:
Answer:
Step-by-step explanation:
It is much simpler to graph and find the intersection points between the equations, which would be the solutions to the system, than graphing it by hand which would lead to some errors.
Help,anyone can help me do quetion,I will mark brainlest.
5.
1m = 0.001 km
So, 1m² = 10^-6
Area = 5027 m² = 5027 × 10 ^-6 km²
6.
1mm = 0.1 cm
1mm² = 10^-2
Area = 210× 297 mm² =62370 mm² = 62370 ×10^-2 cm²
In a car dealership, all of the vehicles are either
a sedan or a SUV. If 36 sedans are sold and 36
SUVs are added, there will be an equal number
of sedans and SUVs. If 8 SUVs are sold and 8
sedans are added, there will be twice as many
sedans as SUVs. How many sedans were at the
dealership before any vehicle was sold?
Answer:
The number of sedans before any vehicle was sold is 168
Step-by-step explanation:
Let's define the variables:
x = number of sedans
y = number of SUVs
We know that:
"If 36 sedans are sold and 36 SUVs are added, there will be an equal number of sedans and SUVs"
If 36 sedans are sold, the new number of sedans is:
x - 36
if 36 SUVs are added, the new number of SUVs is
y + 36
And these numbers are equal, then:
x - 36 = y + 36
We also know that:
" If 8 SUVs are sold and 8 sedans are added, there will be twice as many
sedans as SUVs. "
If 8 SUVs are sold, the new number of SUVs will be:
y - 8
If 8 sedans are added, the new number of sedans wil be:
x + 8
From this we can write the equation:
(x + 8) = 2*(y - 8)
x + 8 = 2*y - 16
Then we have two equations:
x - 36 = y + 36
x + 8 = 2*y - 16
We want to find the number of sedans, x, then we need to isolate the other variable in one of the equations, let's isolate y in the first one:
Let's isolate x in the first one:
x - 36 - 36 = y
x - 72 = y
Now we can replace it in the other equation:
x + 8 = 2*y - 16
x + 8 = 2*(x - 72) - 16
Now we can solve this for x.
x + 8 = 2*x - 144 - 16
8 + 144 + 16 = 2x - x
168 = x
The number of sedans before any vehicle was sold is 168
Enter the coordinates of the point
on the unit circle at the given angle. 0°
The points are ( 1,0) (0,1) .
The coordinates of the point on the unit circle -The coordinates for the points lying on the unit circle and also on the axes are (1,0), (–1,0), (0,1), and (0,–1). These four points (called intercepts) are shown here. When you square each coordinate and add those values together, you get 1. They're the sine and cosine values of the most common acute-angle measures.a.) We seek the coordinates on the unit circle that represent an angle of 0 degrees.
The points on the unit circle are often provided by,
( cosθ, sinθ )
In order to do so,
θ= 0
to acquire,
(cos(0),sin(0))
(1,0)
b. With regard to the location on the unit circle where the angle is 90 degrees,
We swap out
θ = 90
to acquire,
(cos(90),sin(90))
This is condensed to, (0,1)
Learn more about the coordinates of the point on the unit circle brainly.com/question/10169163
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Answer: 1,0
is the actual answer
help me please to solve this 2 questions pleasee faster.. i will mark you as brainliest
Answer:
1. x=72, y=, 108
2.x=30, y=72
Step-by-step explanation:
Brainliest please~
See has 18 sweets. Tony also has 18 sweets sue gives Tony x sweets. sue then eats 5 of her sweets. Tony then eats half of his sweets
Answer:
13 - x
(18 + x) /2
Step-by-step explanation:
Given :
See = 18 sweets
Tony = 18 sweets
See gives Tony x sweets :
See = 18 - x
Tony = 18 + x
See eats 5 of her sweets:
See's sweets becomes :
18 - x - 5 = 13 - x
Tony eats half of his sweets;
Tony's sweets becomes ;
(18 + x) /2
Cost of bananas is increased by rupees per dozen one can get two dozen less for 840 rupees find the cost of one dozen
Answer:
Let the cost of banana per dozen be Rs. x.
Amount for which bananas are bought = Rs. 840
No. of dozens of bananas for Rs 840 = 840/x
New cost of banana per dozen = Rs. (x + 1)
New No. of dozens of bananas for Rs 840 = 840/x+1
According to given condition,
840/x – 840 / x + 1 = 2
∴ 840[1/x – 1/x+1] = 2
∴ 840 [x+1- x / x(x+1)] = 2
∴ 840 [1/ (x² + x)] = 2
∴ 840 = 2(x² + x)
∴ 2x2 + 2x – 840 = 0
Dividing by 2, we get
x² + x – 420 = 0
x² – 20x + 21x – 420 = 0
∴ x (x – 20) + 21 (x – 20) = 0
∴ x – 20 = 0 or x + 21 = 0
∴ x = 20 or x = –21
∴ The cost of bananas cannot be negative.
∴ x = 20
The original cost of one dozen banana is Rs. 20
hope it helps you
Step-by-step explanation:
What is the correct answer to this multiple choice question? Please help!
Answer:
19.3
Step-by-step explanation:
The base of the top triangle is 24.158 (approximately) found from the bottom triangle using the sine rule
from that,
sin(53) = r/24.158
or, r = 24.158×sin(53)
or, r = 19.3 (rounded to the nearest tenth)
what is another name for this polynomial?
PLS HELP ASAP¡
A
P
E
X
Answer:
4x^4 + 6x^3 + 5x + 4 poly means many ....polynomial
x^2 + 1 ... two parts bi-nomial
ax^2 + bx + c ... three parts tri-nomial
3x^2y^3 ... one part monomial
Step-by-step explanation:
Express 3.023 in P form where p and q are integers and q= 0 D
Given:
The number is 3.023.
To find:
The given number in the form of [tex]\dfrac{p}{q}[/tex], where [tex]q\neq 0[/tex].
Solution:
The given number is 3.023. It can be written as:
[tex]3.023=3.023\times \dfrac{1000}{1000}[/tex]
[tex]3.023=\dfrac{3023}{1000}[/tex]
It cannot be simplified further because 3023 and 1000 have no common factors.
Therefore, the given number 3.023 can be written as [tex]\dfrac{3023}{1000}[/tex].
The length of a rectangular playing field is 5m longer than its width. If the perimeter of the field is 150m,find it's width
Answer:
35
Step-by-step explanation:
Make equations, l = w+5 and 2l + 2w = 150
Substitute w+5 into 2l + 2w = 150
Simplify to get 4w + 10 = 150
Subtract 10 from both sides to get 4w = 140
Divide both sides by 4 and you get 35 as width
Answer:
The width of the field is 35 meters.
Step-by-step explanation:
Recall that the perimeter of a rectangle is given by:
[tex]\displaystyle P = 2(w+\ell)[/tex]
Where w is the width and l is the length of the rectangle.
We know that the perimeter is 150 meters. Thus:
[tex]150=2(w+\ell)[/tex]
Divide both sides by two:
[tex]75=w+\ell[/tex]
We are given that the length is five meters longer than the width. So:
[tex]\ell = w+5[/tex]
Substitute:
[tex]75=w+(w+5)[/tex]
Combine like terms:
[tex]75=2w+5[/tex]
Subtract five from both sides:
[tex]70=2w[/tex]
And divide both sides by two. Hence:
[tex]w=35[/tex]
Thus, the width of the rectangular field is 35 meters.
please help me 57=8n-7
Answer:
n=8
Step-by-step explanation:
57=8n-7
add 7 on both sides
64=8n
divide 8
n=8
Answer:
8
Step-by-step explanation:
57=8n-7
add 7 to both sides
64=8n
divide by 8 on both sides
n=8
find the radius of a circle that has a circumference of 16
Answer: 2.54647909 or 2.55
Step-by-step explanation:
radius=C/2π
r=16/2π
r=16/6.2831853071796
r=2.54647909
A total of 585 tickets were sold for the school play. They were either adult tickets or student tickets. There were 65 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Answer:
325
Step-by-step explanation:
Total Tickets = 585
Let the adult tickets be = x
If 65 fewer student tickets were sold than adult tickets then Student tickets = x-65
Student Tickets + Adult Tickets = 585
x + (x-65) = 585
x + x - 65 = 585
2x - 65 = 585
2x = 585 + 65
2x = 650
2x/2 = 650/2
x = 325
Answered by Gauthmath
Guided Practice
Use the vertical motion formula h = –16t2 + vt + c.
A child tosses a ball upward with a starting velocity of 10 ft/s from a height of 3 ft. Substitute the values into the vertical motion formula and let h = 0. Use the quadratic formula to solve for t. How long is the ball in the air?
A.
0.8 s
B.
0.8 s or –0.2 s
C.
0.2 s
Answer:
t = -0.22secs and 0.85secs
Step-by-step explanation:
Given the expression
h = –16t² + vt + c.
If a child tosses a ball upward with a starting velocity of 10 ft/s from a height of 3 ft, then;
v = 10, c = 3
Since we are to let h = 0, then the equation becomes:
0 = –16t² + 10t + 3
Multiply through by a minus sign
16t² - 10t - 3 = 0
Factorize the reulting expression:
t = -(-10)±√(-10)²-4(16)(-3)/2(16)
t = 10±√100+192/32
t = 10±√292/32
t = 10±17.09/32
t = 10-17.09/32 and 10+17.09/32
t = -7.09/32 and 27.09/32
t = -0.22secs and 0.85secs
Answer:
0.8 s
Step-by-step explanation:
I got it right in grandpoint.
the function f(x) = -5x^2 +3 is defined over the domain -4< x < -1. find the range of this function.
a. 8 < f(x) < 83
b. 8 ≤ f(x) ≤ 83
c. -77 < f(x) < -2
d. 8 < f(x) < 23
Answer:
[tex]choice \: c. \: - 77 < f(x) < - 2[/tex]
Step-by-step explanation:
Find the y-values of the functions endpoints.[tex]f( - 4) = - 5 ({ - 4}^{2}) + 3 = - 77[/tex]
[tex]f( - 1) = - 5( { - 1}^{2}) + 3 = - 2[/tex]
Thus finding the range of F(x).
The range of the given function is - 77 < f(x) < - 2.
What is the range of a function?"The range of a function is a set of all the images of elements in the domain."
The given function is:
f(x) = - 5x² + 3
It is defined over the domain - 4 < x < - 1.
For x = - 4, f(x) = - 5(- 4)² + 3 = - 80 + 3 = - 77
For x = - 1, f(x) = - 5(- 1)² + 3 = - 5 + 3 = - 2
Therefore, the range of the given function f(x) is:
- 77 < f(x) < - 2.
Learn more about the range of a function here: https://brainly.com/question/8841915
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Sue has 3 cats. Each cat eats 1 4 of a tin of cat food each day. Sue buys 4 tins of cat food. Has Sue bought enough cat food to feed her cats for 5 days? You must show how you get your answer
Answer:
3 3/4 tins of food
Step-by-step explanation:
Number of cats = 3
Quantity of food for each cat per day = 1/4 of a tin
Total tins of cat food sue bought = 4 tins
Has Sue bought enough cat food to feed her cats for 5 days?
Quantity of food 3 cats eat per day = Quantity of food for each cat per day × Number of cats
= 1/4 × 3
= 3/4 of a tin
Total Quantity of food 3 cats eat for 5 days = Quantity of food 3 cats eat per day × 5 days
= 3/4 × 5
= (3 * 5) / 4
= 15/4
= 3 3/4 tins of food
Total Quantity of food 3 cats eat for 5 days = 3 3/4 tins of food
Recall,
Total tins of cat food sue bought = 4 tins
Therefore, Sue bought enough cat food to feed her cats for 5 days
SOMEONE HELP ME PLEASE
9514 1404 393
Answer:
1/12
Step-by-step explanation:
The probability of any given outcome is the ratio of the number of ways that outcome can happen to the total number of outcomes.
P(4) = 1/6 . . . . . roll = 4 is one of 6 possible outcomes
P(odd) = 3/6 = 1/2 . . . . . of the 6 possible outcomes, 3 are odd
__
The two rolls of the die are presumed to be independent, so the probability of the two outcomes is the product of their individual probabilities.
P(4 & odd) = (1/6)(1/2) = 1/12
Căn 84 bình phương trừ 37 bình phương chia 47
Answer:
[tex]\sqrt{84^{2} } -37^{2} /47[/tex]=257 9/47
Step-by-step explanation:
20 POINTS AND BRAIN LIESTJ ulia s urveyed the pl ayers on her so ccer team to see how many hou rs each mem ber prac ticed during the week. Her data is shown in the histo gram.
A histogram titled Prac tice Time has number of hours on the x -axis and number of players on the y-axis. 0.1 to 0.5 hours is 5 players, 0.6 to 1: 6, 1.1 to 1.5: 5, 1.6 to 2: 2, 2.1 to 2.5: 1, 2.6 to 3: 2, 3.1 to 3.5: 2, 3.6 to 4: 1, 4.1 to 4.5: 1.
Which of the following best describes the histogram?
The histogram is evenly distributed.
The histogram is symmetrical.
The left side of the histogram has a cluster.
The left side of the histogram is the mirror image of the right side.
Answer:
the left side of the histogram is the mirror image of the right side.
What is the property shown below
Answer:
Commutative property of addition
Step-by-step explanation:
The triangle below is isosceles. Find the length of side x in simplest radical form with
a rational denominator.
4
+
Submit Answer
Answer: 2 =
attempt 1 out of 2
PLS HELP
Answer:
69
Step-by-step explanation:
cuz
Use trigonometric identities to solve each equation within the given domain.
sec(x) cos(3x) = 0 from [– π/2 , π/2] PLEASE SHOW WORK!!!!
Recall the triple angle identity for cosine:
cos(3x) = cos³(x) - 3 sin²(x) cos(x)
… = cos³(x) - 3 (1 - cos²(x)) cos(x)
… = 4 cos³(x) - 3 cos(x)
and the definition of secant,
sec(x) = 1/cos(x)
So we have
sec(x) cos(3x) = 0
(4 cos³(x) - 3 cos(x))/cos(x) = 0
cos(x) (4 cos²(x) - 3)/cos(x) = 0
If cos(x) ≠ 0 (this happens at the endpoints of the interval [-π/2, π/2]), we can simplify this to
4 cos²(x) - 3 = 0
cos²(x) = 3/4
cos(x) = ±√3/2
But since -π/2 < x < π/2, we know cos(x) > 0, so we ignore the negative case:
cos(x) = √3/2
==> x = π/6 and x = -π/6
The solution of the given trigonometric equation by using trigonometric identities is [tex]\frac{\pi }{6} \ and \frac{-\pi }{6}[/tex].
What are trigonometry identities?Trigonometric Identities are the equalities that involve trigonometry functions and holds true for all the values of variables given in the equation.
Some trigonometric identities are[tex]cos(3x) = 4cos^{3}(x) -3cos(x)[/tex]
According to the given question.
We have an equation
[tex]sec(x)cos(3x) = 0[/tex]
Since, the above equation can be written as by using trigonometric identities
[tex]sec(x)cos(3x) = 0\\\implies \frac{1}{cos(x)} (4cos^{3} x-3cos(x))=0[/tex]
Solve the above equation for x.
[tex]\implies 4cos^{2} x -3= 0[/tex]
[tex]\implies 4cos^{2}x = 3\\ \implies cos^{2} x = \frac{3}{4} \\\implies cos x = \sqrt{\frac{3}{4} } \\\implies cos x = \pm\frac{\sqrt{3} }{2}[/tex]
In the given domain [tex][\frac{-\pi }{2}, \frac{\pi }{2} ][/tex] we know that cosx > 0. Therefore, we take only positive part
[tex]\implies cosx = \frac{\sqrt{3} }{2} \\\implies x = cos^{-1} \frac{\sqrt{3} }{2} \\\implies x = \frac{\pi }{6}, and \frac{-\pi }{6}[/tex]
Hence, the solution of the given trigonometric equation by using trigonometric identities is [tex]\frac{\pi }{6} \ and \frac{-\pi }{6}[/tex].
Find out more information about trigonometric identities here:
https://brainly.com/question/12537661
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which line is perpendicular to a line that has a slope of -5/6?
Answer:
line LM
Step-by-step explanation:
When it is perpendicular, the slope will be 6/5.
what is the answer to this?
Answer:
x is any number
y depends on x value
find : (f/g)(x) pls help
Answer:
4
Step-by-step explanation:
f(x) = 16x+12
g(x) = 4x+3
f(x) / g(x) =
Factoring f(x) =4(4x+3)
f(x) /g(x) = 4(4x+3) / (4x+3) = 4
(x + 1)(x + 3) + (x + 2)(x + 4)
Step-by-step explanation:
x²+3x+x+3+x²+4x+2x+8
2x²+10x+11....then solve quadratically
Answer:
Step-by-step explanation:
Hello!
(x + 1)(x + 3) + (x + 2)(x + 4)
x*x = x²
x*3 = 3x
1*x = x
1*3=3
x*x=x²
x*4 = 4x
2*x= 2x
2*4 = 8
x²+3x+x+3+ x² + 4x+ 2x+ 8=
2x² + 10x+ 11
What value from the set {6, 7, 8, 9, 10} makes the equation 5x + 2 = 47 true? Show your work. (5 points)
Answer:
trure correct
ok must of luck
what is the value of i^n if the remainder of n/4 is 3?
Answer:
-i
Step-by-step explanation:
i =i
i^2=-1
i^3= -i
i^4=1
i^5=1
Find the volume of this sphere.
I need help I don’t understand.
Answer:
2048
Step-by-step explanation:
Formula for volume of a sphere is given:
V = 4/3πr^3
Where r = radius
The sphere shown has a given radius of 8
All we have to do to find the volume of the sphere is simply plug in the given value of the radius (8) into the volume of a sphere formula
(Note it says use 3 for π )
V = 4/3(3)r^3
Substitute 8 for r
V = 4/3(3)(8)^3
Plug this into a calculator and you get that the volume is 2048
Answer:
2,048in³
Step-by-step explanation:
The formula to find the volume of the sphere is already given to you in the problem. All we need to do is substitute and solve.
V = 4/3π(8)³
V = 4/3π(512)
V ≈ 682.67(3)
V ≈ 2,048
Best of Luck!
