2. Which of the following is a linear inequality in two variables?
a. 7x - 4y= 3
c. 2t 56
b. 4m + 3 < 23
d. 3 + 5t 2 3r
convert 60mph to feet per minute
Write the equation of an ellipse with the following characteristics: center =(1,-3) vertices=(-6,-3),(8,-3)
Foci =(-4.7,-3),(6.7,-3)
Answer:
(x-1)²/49 + (y+3)²/16.51 = 1
Step-by-step explanation:
vertex (8,-3) Foci (6.7,-3) center (h,k) = (1,-3) , major axis parallel to x axis
a is the distance of the vertex from the center, and c is the distance of the foci from the center. b is semi-minor axis
b² = a² - c² Ellipse equation: (x-h)²/a² + (y-k)²/b² = 1
a = 8-1 = 7 c = 6.7 - 1 = 5.7
b² = 7² - 5.7² = 16.51
Ellipse equation: (x-1)²/49 + (y- -3)²/16.51 = 1 i.e. (x-1)²/49 + (y+3)²/16.51 = 1
13. David throws a bucket with an initial speed of 2 meters per second into a well that is 30 meters deep. When will the bucket hit the bottom of the well?
Answer: 2.69
Step-by-step explanation: i just took the test
On a recent survey, 60% of those surveyed indicated that they preferred taking a trip to the beach over a trip to the mountains. If 810 people preferred a trip to the mountains, how many preferred a trip to the beach?
Question 2 options:
1) 810
2) 1,215
3) 1,350
4) 2,025
Answer:
answer is 1350
Step-by-step explanation:
I have seen this question before.
For questions 1 – 6, find the area of the circle to the nearest hundredth.
Any help appriciated!
Step-by-step explanation:
The area of a circle is given by :
A = πr²
r is the radius of the circle
(4) Diameter = 22 cm
Since, radius = diameter/2
r = 11 cm
Now, area of the circle,
[tex]A=\pi \times (11)^2\\\\A=380.13\ cm^2[/tex]
(5) Diameter = 30 cm
Since, radius = diameter/2
r = 15 cm
Now, area of the circle,
[tex]A=\pi \times (15)^2\\\\A=706.85\ cm^2[/tex]
(6) Diameter = 4cm
Since, radius = diameter/2
r = 2 cm
Now, area of the circle,
[tex]A=\pi \times (2)^2\\\\A=12.56\ cm^2[/tex]
So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.
Someone plz help i need numbers 24 and 26
i hope you understand
What is this slope of the liner function represented in the table -7 -1/7 1/7 7
Answer:
The answer is C and that idiot before me wasted a plot
Step-by-step explanation:
A carpenter is building a rectangular shed with a fixed perimeter of 54 ft. What are the dimensions of the largest shed that can be built? What is its area?
Answer:
the Largest shed dimension is 13.5 ft by 13.5 ft
Largest Area is 182.25 ft²
Step-by-step explanation:
Given that;
Perimeter = 54 ft
P = 2( L + B ) = 54ft
L + B = 54/2
L + B = 27 ft
B = 27 - L ------------Let this be equation 1
Area A = L × B
from equ 1, B = 27 - L
Area A = L × ( 27 - L)
A = 27L - L²
for Maxima or Minima
dA/dL = 0
27 - 2L = 0
27 = 2L
L = 13.5 ft
Now, d²A/dL² = -2 < 0
That is, area is maximum at L = 13.5 using second derivative test
B = 27 - L
we substitute vale of L
B = 27 - 13.5 = 13.5 ft
Therefore the Largest shed dimension = 13.5 ft by 13.5 ft
Largest Area = 13.5 × 13.5 = 182.25 ft²
the discount price of a hat is $24. whats the regular price
Will give Brainliest! A rectangle on the coordinate plane has vertices at (0, 0), (4, 0), (4, 2) and (0, 2). A dilation of the rectangle has vertices at (0, 0), (2, 0), (2, 1) and (0, 1). Find the scale factor.
Answer: Sample. Points. A(2, 1). B(1, 3). C(3, 2). Segments ... and angle measures of the image of △ABC after a dilation with a scale factor of k? Dilating Lines ... Graph quadrilateral KLMN with vertices K(−3, 6), L(0, 6), M(3, 3), and N(−3, −3) ... Find the perimeter and area of the rectangle. b.
Step-by-step explanation:
Germany, Italy, and Japan formed the Tripartite Pact in part because they:
Answer:
hoped to convince the United States to stay out of World War II
Explanation:
just took the quiz :)
Answer:
Wanted to support one another in conquering Europe and Asia
Step-by-step explanation:
m over 8 minus 5 equal 12
Answer:
m = 136
Step-by-step explanation:
m/8 - 5 = 12
1. Add 5 on both sides
m/8 - 5 + 5 = 12 + 5
m/8 = 17
Multiply 8 on both sides since u are trying to isolate the variable
m/8 * 8 = 17*8
m = 136
Check
136/8 - 5 = 12
17 - 5 = 12
12 = 12
Hope it helped!
Step-by-step explanation:
[tex]\frac{m}{8}[/tex] - 5 = 12 : Original Problem
[tex]\frac{m}{8}[/tex] -5 +5 = 12 + 5 : Bringing the constants to one side
[tex]\frac{m}{8}[/tex] = 17 : Simplification
[tex]\frac{m}{8}[/tex]×8 = 17×8: Isolating the variable
m = 136 : The answer!!!
Checking the answer
[tex]\frac{136}{8}[/tex] -5 = 12 : Substitution
[tex]\frac{136}{8}[/tex] = 17 : Bringing constants to one side and simplification
136 = 17 × 8 : Isolating the answer
136 = 136 : Success!!!
I hope this is what you wanted and I hope this helps!!!
A survey was distributed to 2.000 employees and 90 percent of these employees responded to the survey. Of the employees responding, 60 percent answered "yes" to a certain yes-no question and 72 employees did not answer that question. How many employees answered "no" to this question?
Answer:
720 employees
Step-by-step explanation:
Number of responded employees = 90% of 2000 employees = 1800 employees
Out of 1800 employees, if 60% answer yes, then the remaining 40% will answer "no". 72 employees did not respond to the survey.
Number of "no" answered employees = 40% of 1,800 employees = 720 employees( Answer)
PLEASE HELP ASAP!! Picture included
Answer:
The Answer is 35
As comparing to 65 and 40
the x side is smallest
its 35
Pls, help me with this problem. HELP!!!!! (it's not that hard I don't know why I am frecking out)
Answer:
Step-by-step explanation:
b/c fractions are confusing :D, put them all in 12th to make it easier
4/12, -8/12, -9/12, -5/12, 1 3/12, 1 5/12
now stick them in order
-9/12, -8/12, -5/12 , 4/12 , 1 3/12, 1 5/12
now put them back to reduced form
-3/4, -2/3, -5/12, 1/3 , 1 1/4, 1 5/12
:) better?
Cole made a scale drawing of the elementary school. The scale he used was
1 centimeter : 2 meters. The school yard is 30 centimeters in the drawing. How wide is the
actual school yard?
Answer:
I think 60
Step-by-step explanation:
k/2+9 =30
k=24
k=42
k=7
k=15
Answer:
K=42
Step-by-step explanation:
If this is correct pls mark me brainliest I only need 2 more until I can level up
Answer:
K=42
Step-by-step explanation:
Which of the following shows two congruent triangles
Answer:
all of them
Step-by-step explanation:
all of them seem to have the same marks
but if u get the question wrong my next bet would be to go with only C because it has the marks on the sides if that makes sense
Find the
area of
squar park, whose perimeter is
4640 m.
Answer:
1345600 meters squared
Step-by-step explanation:
devide the perimeter (4640m) by 4 and you get 1160m for each side of the square now you multiply that by itself to get 1345600 meters squared.
Answer:
Step-by-step explanation:
Square
Solve for area
A≈1.35×106m²
P Perimeter
4640
m a d a d d a P a A
Using the formulas
A=a2
P=4a
Solving forA
A=1
16P2=1
16·46402=1.3456×106m²
13.
How much voltage would be necessary to generate 20 amps of current in a circuit that has 5.5
ohms of resistance?
Answer:
110 volts
Step-by-step explanation:
V=I×R
V=20×5.5
V=110 volts
The equation y = 3.5x represents the total cost y in dollars of buying x pounds of cheddar cheese at Art’s Deli. The graph below shows the total cost y in dollars of buying x pounds of cheddar cheese at Jon’s Deli. What conclusion can you draw about the cost of cheddar cheese at these delis? Cheddar cheese costs $4 more per pound at Jon’s Deli than Art’s Deli. Cheddar cheese costs $0.50 more per pound at Jon’s Deli than Art’s Deli. Cheddar cheese costs $3.50 less per pound at Art’s Deli than Jon’s Deli. You pay the same price per pound for cheddar cheese at both delis.
Step-by-step explanation:
i think its X=2.75
ramona has $21 that she can spend on food for her dog. dry dog food costs 7.50 per small bag
Answer:
Ramona can buy 2 bags.
Step-by-step explanation:
7.5 x 3 = 22.5. This is over her budget.
Therefore Ramona can buy 2 bags.
You didn't specify what the question was asking for, I'm guessing that this is it.
Marcus can drive his boat 36 miles down the river in 3 hours but takes 4 hours to return upstream. Find the rate of the boat
in still water and the rate of the current.
Answer:
With river 12 miles per hour
Against river 9 miles per hour
wv = water velocity vsw = boat velocity in still water
vsw +wv = 12 mph
vsw -wv = 9 mph
2 * vsw = 21 mph
boat velocity in still water = 10.5
Since vsw + wv = 12 then
water velocity = 1.5 mph
Step-by-step explanation:
Answer:
speed in still water: 10.5 Current: 1.5
Step-by-step explanation:
Gabby plans to make 30 bracelets to sell at the state fair. How long will it take her?
Do not include units (hours) in your answer.
Answer:
45
Step-by-step explanation:
10 braslets is 15 hrs
30=10*3
3*15=45 hrs
1) A store sold 350 bikes last year. This year, the store sold 272 bikes, what is the percent change in the
number of bikes sold last year to this year?
Answer: The percent change is?
Answer:
-22.3% or 22.3% less than the previous year
Step-by-step explanation:
350 - 272 = 78
78/350 = 22.3 to 3 significant figures
What do you do to convert 0.02083 to 75 mph?
Answer: 120.7008 Kilometers per Hour
Which function is represented by the graph?
Answer:
f(x) = -2|x| + 1 aka the first option
Step-by-step explanation:
Enter the sum of numbers as a product of their GCF.
Print
45 +90
The sum of the numbers as a product of their GCF is
Answer:
4, 7 ,2
Step-by-step explanation:
Use the scale factor to find the area of the enlarged figure. Explain your steps.
A small rectangle has a length of 8 and width of 4. A large rectangle has a length of 25.6 and width of a.
9514 1404 393
Answer:
327.68 units^2
Step-by-step explanation:
The area of the small figure is ...
area = length · width
area = (8)(4) = 32 . . . . square units
The scale factor is ...
scale factor = large length / small length = 25.6/8 = 3.2
The area of the larger rectangle will be the small rectangle area multiplied by the square of the scale factor:
(32 units^2)(3.2^2) = 327.68 units^2
_____
Additional comment
We note the width is half the length, so we could figure the larger rectangle's width at 25.6/2 = 12.8 units. Then its area would be
length · width = (25.6 units)(12.8 units) = 327.68 units^2
This seems easier to me, but is not the method required by the problem statement.
Answer:
The scale factor of the enlargement is 3.2. Square the scale factor to get 10.24. Find the area of the original figure, which is 32. Multiply 32 and 10.24 to get the area of the enlarged figure, which is 327.68.
Step-by-step explanation:
This is the sample response but I would use the other pearsons answer because it is NOT the sample response.
Have a great day!
