Answer:
(55/38,-16/19)
Step-by-step explanation:
4x -5y = 10
2x + 7y = -3
4x -5y = 10
-4x -14y = 6
-19y = 16
y = -16/19
2x -112/19 = -57/19
x = 55/38
Instructions: Given the following constraints, find
the maximum and minimum values for z.
x + 3y < 0
Constraints:
x - y = 0
3x - 7y < 16
Optimization Equation: z = -x + 5y
Maximum Value of z: 0
Minimum Value of z:
Answer:
The answer is below
Step-by-step explanation:
Given the constraints:
x + 3y≤ 0; x - y ≥ 0 and 3x - 7y ≤ 16.
We have to first plot the constraints using the geogebra online graphing tool. Plotting the constraints gives the solution as:
A(0, 0), B(3, -1) and C(-4, -4).
Next using the optimization equation: z = -x + 5y
At point A(0, 0); z = -0 + 5(0) = 0
At point B(3, -1); z = -3 + 5(-1) = -8
At point C(-4, -4); z = -4 + 5(-4) = -24
Hence the maximum value of Z is 0 and the minimum value of Z is -24.
Find the value of both variables.
[tex] \cos(45) = \frac{5 \sqrt{2} }{x} \\ \frac{1}{ \sqrt{2} } = \frac{5 \sqrt{2} }{x} \\ x = 10 \\ \\ \tan(45) = \frac{y}{5 \sqrt{2} } \\ 1 = \frac{y}{5 \sqrt{2} } \\ y = 5 \sqrt{2} [/tex]
I hope I helped you ^_^
write in mapping notation
Help plz ffggggggggggggggggggggggggggggg
Answer:
< EFG
< GFE
Step-by-step explanation:
The letter for the vertex must be in the middle
< EFG
< GFE
<F
The marked price of a radio was 40% above the cost price. When it was sold allowing 30% discount on it, there was loss of RS. 100. What was the marked price of the radio.
Answer:
7000
Step-by-step explanation:
70/100 * marked price = original price - 100
marked price = 140/100* og price
70/100 * 140/100 * og price = original price - 100
49/50 * og price = orignal price - 100
1/50 of original price = 100
orignal price = 5000
marked price = 140/100 * 5000 = 7000
30 POINTS PLEASE HELP
2. Given the list of measures of EXTERIOR angles (missing one) of a polygon, find the missing angle:
a. ___, 92°, 28°, 55°, 75°, 55°
b. ___, 71°, 69°, 40°, 62°
c. ___, 120°, 38°, 80°
d. ___, 90°, 60°, 40°, 30°, 60°, 30°
Answer:
a,55
b,118
c,122
d,50
Step-by-step explanation:
sum of exterior angles of a polygon ends up to 360°. add the numbers given in each case and subtract from 360° to get the missing angle.
Make an Inequality! Twice the difference of a number and 7 is less than -30. Use c as the variable.
Answer:
7 - 2c < - 30
*To do this equation you would have to start with -30, because of "less than"
Hope this helps.
How many amount will be reqyired to plaster on the four walls at the rate of Rs 315per square meter?find it
Incomplete question
Let the area be = 100 square meter
Cost of plaster = Rs 315 per square meter
No of walls = 4
Total area = 400 square meter
Then cost = 400 × 315
= Rs 1,26,000
Answered by Gauthmath must click thanks and mark brainliest
The height of a baseball in feet can be found by the equation -4.982 – 20t + 1000. How far has the
baseball traveled at t = 6?
Answer:
875.018
Step-by-step explanation:
To solve this, we must plug in 6 for our t value. So, we have the equation:
-4.982 - 20(6) + 1000
Following the rules of PEMDAS, we have:
-4.982 - 120 + 1000 = 875.018
help please i’ve been in here for hours looking for answers
Answer: Second row
The y intercept is 2
=============================================================
Explanation:
The y intercept always occurs when x = 0. Visually, the y intercept is the location where the graph crosses the y axis.
In the table, we see that x = 0 pairs up with y = f(x) = 2 in the second row. So we can say that the y intercept is 2.
Side note: the x intercept is 1 since it occurs when y = 0.
Help please ! Thank you!
:) :) :) :) :) :) :) :) :) :) :) :) :)
In a restaurant there are 5 possible pizza toppings chicken, pineapple olives mushrooms and beef Freddie picks two different toppings on his pizza
Answer:
please the question is not done
Step-by-step explanation:
please don't take this the wrong way
for which values of X will the rational expressions below the undefined?
Answer:
x≠-7
Step-by-step explanation:
The function will be undefined when the denominator is zero
x+7≠ 0
x≠-7
Consider the three triangular pyramids.
Pyramid 1
Pyramid 2
Pyramid 3
Triangular pyramid 1. The base has a base of 12 meters and height of 2 meters. The height of the pyramid is 10 meters.
Triangular pyramid 2. The base has a base of 6 meters and height of 4 meters. The height of the pyramid is 10 meters.
Triangular pyramid 3. The base has a base of 12 meters and height of 4 meters. The height of the pyramid is 5 meters.
Which statement about their volumes is true? (Recall the formula V = one-third B h.)
O All three pyramids have the same volume.
O All three pyramids have different volumes.
O Only pyramids 1 and 2 have the same volume.
O Only pyramids 1 and 3 have the same volume.
9514 1404 393
Answer:
(a) All three pyramids have the same volume
Step-by-step explanation:
The triangular base has an area of ...
B = 1/2bh . . . . where b is the base of the triangle and h is its height.
The volume of the pyramid is ...
V = 1/3BH . . . . where B is the area of the base, and H is the height of the pyramid.
Combining these equations gives ...
V = 1/3(1/2bh)H = 1/6bhH
__
Pyramid 1 volume
V1 = 1/6(12 m)(2 m)(10 m) = 40 m³
Pyramid 2 volume
V2 = 1/6(6 m)(4 m)(10 m) = 40 m³
Pyramid 3 volume
V3 = 1/6(12 m)(4 m)(5 m) = 40 m³
All three pyramids have the same volume.
Please help solve 1, and 2
Answer:
Step-by-step explanation:
1). WXYZ is a rectangle,
Properties of a rectangle,
i). Opposite sides are equal and parallel.
ii). All interior angles measure 90°.
iii). Diagonals are equal in measure.
a). WY = ZX = 30
Therefore, ZT = [tex]\frac{1}{2}(ZX)[/tex]
[tex]ZT=15[/tex]
b). WY = ZX = 45
c). Since, WY = ZX,
(4b - 16) = (3b + 5)
4b - 3b = 16 + 5
b = 21
2). GOAT is a rhombus and m∠OGA = 35°,
a). m∠TGA = m∠OGA = 35°
b). m∠GXO = 90°
c). m∠GXT = 90°
d). Since adjacent angles of a rhombus are supplementary,
m∠OGT + m∠GTA = 180°
70° + m∠GTA = 180°
m∠GTA = 110°
m∠GTO = [tex]\frac{1}{2}(m\angle GTA)[/tex]
= [tex]\frac{1}{2}(110^{\circ})[/tex]
= 55°
e). Since, opposite angles of a rhombus are equal,
m∠OGT = m∠OAT = 70°
f). m∠GOA = m∠GTA = 110°
Find the perimeter of this semi-circle with diameter, d = 22cm.
Give your answer as an expression in terms of t.
Answer:
=22tcm
Step-by-step explanation:
Perimeter of a circle =πD
But π=t
hence perimeter; = 22tcm
where t=π
calculate the value of x in circle O. *show your work*
Answer:
Step-by-step explanation:
The central angle is twice as big as any angle sharing the endpoints with the central angle of a chord where the angle is not below the smaller sector.
2*62 = x
x = 124
Help would be appreciated!!!
Answer:
td/(r+e) = a
Step-by-step explanation:
t a
---- = -----
r+e d
Using cross products
t*d = a(r+e)
Divide each side by (r+e)
td/(r+e) = a
Find the value of m.
A. 7
B. 2
C. 42
D. 14
Answer:
A. 7
Step-by-step explanation:
3m + 21 = 6m
Move variables to one side to get:
3m + 21 = 6m
-3m -3m
21 = 3m
Then isolate variable by dividing by 3
21/3 = 3m/3
m = 7
Choice A is the correct answer
Find the missing side lengths
Answer:
Does the answer help you?
The sum of two consecutive even numbers is 50. Find the two numbers
25 and 25
40 and 10
24 and 26
16 and 34
Answer:
First even = 24
Second even = 26
Step-by-step explanation:
let x be the first even integer.
let 2x be the second even integer.
[tex]x + 2x = 50[/tex]
[tex]x + x = 50 - 2 [/tex]
[tex]2x =48[/tex]
[tex]x = \frac{48}{2} [/tex][tex] x = 24[/tex]
Therefore, The first even number is 24.
[tex]second \: \: number= 50 - x \\ = 50-24 \\ = 26[/tex]
Therefore, The second even number is 26.
Hope it is helpful...Find one rational number between 1 and 2.
There are infinitely many rational no.s between two no.s
one rational number between 1 and 2 is
11/10
Two numbers are respectively 40% and 60% more than a third number. The ratio of the two numbers is:
Answer:
7:8
Step-by-step explanation:
y=-1/2x +7
Line k is perpendicular to the line defined by the equation
above and passes through the point (4,0). Which of the
following points also lies on line k?
A) (0,8)
B) (2,-4)
C) (2,-2)
D) (2,8)
Answer:
B; (2,-4)
Step-by-step explanation:
The general equation of a straight line is;
y = mx + b
where m is the slope and b is the y-intercept
So from the question, when we look at the given equation, its slope is -1/2
mathematically, when two lines are perpendicular, the product of their slopes is -1
thus;
m1 * m2 = -1
m2 * -1/2 = -1
-m2 = -2
m2 = 2
The general equation form is;
y-y1 = m(x-x1)
where (x1,y1) = (4,0)
y-0 = 2(x-4)
y = 2x - 8
So, now we look at the point that will work for this equation
For the line that will work, if we substitute its x-value, we get the y-value
Let us take a look at option B
y = 2(2) -8 = 4-8 = -4
we can see that (2,-4) works
SOMEONEEEE HELPPP MEEEE OUTTTT!!!!
Answer:
24°
Step-by-step explanation:
cos ? = 41/45
? = arccos 41/45
? = 24
Answered by GAUTHMATH
What is another name for a relation that has each element in its domain paired with exactly one element in its range?
4 of 4
5 positive integers are arranged in ascending order, as follows:
3, 4, 8, 12, X
The mean and the median are equal.
Find X.
x
PLEASE HELP ME I DONT UNDERSTAND
Answer:
no
Step-by-step explanation:
the square root of 2 is not rational
Judd bought a pack of pencils and sold it for 10% profit. Write an expression for the selling price.
selling price: 1,1x
since x 10% more than the full value (100%)
so, 110/100 . x = 1,1x
The expression which represents the selling price of the pen is
y = 1.1x or [tex]selling\ price = 1.1\ cost\ price[/tex].
What is expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
What is profit?A profit occurs when you sell something. for more than it cost.
Let x represents the cost price of the pens and y represents the selling price.
According to the question.
Judd sell the pens for 10% profit.
Now,
Profit = 10% of cost price
[tex]\implies profit = \frac{10}{100} \times x \\\implies Profit = 0.1x[/tex]
Therefore, the expression for the selling price of the pen is given by
[tex]y = cost\ price\ of\ pens + profit\\\implies y = x + 0.1x \\\implies y = 1.1x[/tex]
Hence, the expression which represents the selling price of the pen is
y = 1.1x or [tex]selling\ price = 1.1\ cost\ price[/tex].
Find out more information about expression and profit here:
https://brainly.com/question/3927668
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Ade thinks of a number He doubles it and then subtract 5 The result cannot be less than 100 find the range of values of x
Answer: [tex]x\in [53,\infty)[/tex]
Step-by-step explanation:
Given
Ade doubles her number and subtract 5 from it. The result cannot be less than 100
Suppose the number is [tex]x[/tex]
According to the question
[tex]\Rightarrow 2x-5\geq100\\\text{Solve the inequality}\\\Rightarrow 2x\geq105\\\Rightarrow x\geq52.5\\\text{for integer number, the range is given by }\\\Rightarrow x\in [53,\infty)[/tex]