The new point after rotation of point (-7, -3) counterclockwise by 90 degrees will be ( 3, -7).
What are coordinates?
A pair of numbers that employ the horizontal and vertical distinctions from the two reference axes to represent a point's placement on a coordinate plane. typically expressed by the x-value and y-value pairs (x,y).
Coordinates are always written in the form of small brackets the first term will be x and the second term will be y.
For example (5,3) here 5 will be for the x and 3 will be for the y.
Another example is (9,0) here 9 is for x and 0 is for y.
Given,
Point A = (-7, -3)
Let's say after rotation this point moves to a new coordinate (x, y) which is point B
Let's say the origin is O
Slope of line segment AO = (-3-0)/(-7-0) = 3/7
Slope of line segment BO = (y - 0)/(x - 0) = y/x
Now,
Since both lines are perpendicular to each other so
Slope AO × Slope BO = -1
3/7 × y/x = -1 ⇒ 3y = -7x
Now if we observe the result then it will be clear that if we put x = 3 than y = -7 will be the new coordinate.
Hence, The new point after rotation of point (-7, -3) counterclockwise by 90 degrees will be ( 3, -7).
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A population of bees is decreasing. The population in a particular region this year is 1250. After year 1, it is estimated that the population will be 1000. After 2 years it is estimated that the population will be 800. How many years will it take for the bee to be below 100?
Answer:
1250 => 250 ( subtracted from the balance population )
1000 => 300
800 => 350
450. => 400
50.
So it will take around 5 years I think to be below 100.
Thank you and please rate me as brainliest as it will help me to level up
PLZZZ HELP 50 POINTS but answer honestly not just for points or i will report you
Answer:
8, 3, -2, -7
Step-by-step explanation:
To solve you have to multiply -5 by whatever number is in the x column of the table then add 3. For example, -5*0 = 0, then 0+3 = 3 and that's your answer(s).
Answer: In order from top to bottom:
9
3
-2
-7
Step-by-step explanation:
To find the y u would replace 'x' in the equation with one of the x's in the colom.
For example:
y = -5 (-1) + 3
= 6 + 3
= 9
REMEBER = A negative times a negative is a positve.
A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. How far will it travel in 45 minutes? In 1 hour?
Answer:
33.75 miles in 45 minutes,
45 miles in an hour
Step-by-step explanation:
45 minutes: 2 1/3= 7/3 ---> 7/3*3=7,
1 3/4= 7/4 ---> 7/4*3=5.25
car travels 5.25 miles for every 7 minutes,
45/7*5.25= 33.75 miles
1 hour (60 minutes):
using that the car travels 5.25 miles for every 7 minutes,
60/7*5.25= 45 miles
Hope that makes sense!
WHO EVER ANSWERS WILL GET BRAINLY!!!!
production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total $19,593, and the variable costs will be per book. With the other method, the one-time fixed costs will total $63,702, and the variable costs will be $10 per book. For how many books produced will the costs from the two methods be the same?
Answer:
4480
Step-by-step explanation:
I did it
ILL GIVE BRAINLIST
Explain the power of products property and give an example.
Answer:
This is an example of the product of powers property tells us that when you multiply powers with the same base you just have to add the exponents.
Step-by-step explanation:
On Monday, I bought 2 shirts and 6 pairs of pants for a total cost of $11. On
Tuesday, I bought 5 shirts and 8 pairs of pants for a total cost of $18.75. Can you
find the price of each item?
Step-by-step explanation:
Step one:
given data
let the shirts be x
and the pants be y
Required
the number of shirts and pants
the systems of the equation for the situation is
2x+6y=11-------------1
5x+8y=18.75-------2
2x+6y=11-------------1X 5
5x+8y=18.75-------2 X2
10x+30y=55-------------1
-10x+16y=37.5-------2
0x+14y=-17.5
divide both sides by 14
y=17.5/14
y=1.25
pants= $1.25
put y=2.32 in eqn 1 2x+6y=11
2x+6(1.25)=11
2x+7.5=11
2x=11-7.5
2x=3.5
x=3.5/2
x=$1.75
Shirts = $1.75
A washer and a dryer cost $834 combined. The washer costs $84 more than the dryer. What is the cost of the dryer?
Answer:
The dryer cost $375
Step-by-step explanation:
834/2 = 417
84/2 = 42
417 - 42 = 375
834 - 375 = 459
459 - 84 = 375
PROOF: 417 - 375 = 42 then double that answer to get 84
May I have brainliest please? :)
Using powers of 10, which would be the best choice for the first number to subtract in the division problem 956 87?
87
8,700
870
800
Answer:
the second one
Step-by-step explanation:
Answer:
87, I believe. The powers of 10, and 87 is in the powers of 10.
Step-by-step explanation:
What value of R makes r/ -11 = (-3) true
Answer:
The value of [tex]r=33[/tex] which makes the equation true.
Step-by-step explanation:
Given the equation
[tex]\frac{r}{-11}=-3[/tex]
We have to find the value of r for which the equation must be true.
solving the equation
[tex]\frac{r}{-11}=-3[/tex]
Multiply both sides by -11
[tex]\frac{r\left(-11\right)}{-11}=\left(-3\right)\left(-11\right)[/tex]
[tex]r=33[/tex]
Therefore, the value of [tex]r=33[/tex] which makes the equation true.
VERIFICATION:
Putting [tex]r=33[/tex] in the equation
[tex]\frac{r}{-11}=-3[/tex]
[tex]\frac{33}{-11}=-3[/tex]
[tex]-3=-3[/tex] ∵ [tex]\frac{33}{-11}=-3[/tex]
L.H.S = R.H.S
Therefore, the value of [tex]r=33[/tex] which makes the equation true.
What is the equation of the line parallel to the line that passes through the points (-4,2) and (12,6) and contains the point (-4,1)?
Answer:
no
Step-by-step explanation:
What is the slope of the line: 7x+2y=5
Answer:
-7/2
Step-by-step explanation:
if you got to flvs and are in 8th grade plsss lmk
Answer:
im not but thxxxx for points
Step-by-step explanation:
Answer:
meee help me w the module 4 DBA
Step-by-step explanation:
594 7 25 +89 37 100 please help solve and this is a decimal problem
Answer.
594 7/25 converted into decimal is 594.28, 89 37/100 converts to 89.37. Add 594.28 and 89.37 together and we get out final answer of 683.65. Convert that back into fraction form and we get (683 13/20)
Step-by-step explanation:
Which graphs show functions with direct variation? Select three options
Parking Garage Rates
Answer:
B C E
Step-by-step explanation:
A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4).
What is graph?A graph is a visual representation of data or a mathematical function, which is often used to show the relationship between variables or to illustrate trends over time.
In the options given, the three graphs that show functions with direct variation are represented by straight lines passing through the origin, indicating that there is a direct relationship between the two variables. Specifically:
A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4).A coordinate plane showing Cost of Cinnamons with Quantity in ounces on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 0.3) and (5, 1.5).A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8).Thus, these graphs show functions with direct variation.
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Your question seems incomplete, the probable complete question is:
Which graphs show functions with direct variation? Select three options. A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4). A coordinate plane showing Cost of Cinnamons with Quantity in ounces on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 0.3) and (5, 1.5). A coordinate plane showing Breakfast Cost with Number of Meals on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 1.2) and (5, 6). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8).
Your dad is designing a new garden for your backyard. He has 20 feet of fencing to go around the garden. He wants the length of the garden to be 2 1/2 feet longer than the width. How long should he make the garden?
Answer:
Length = 6.25 feet
Step-by-step explanation:
Your dad is designing a new garden for your backyard. He has 20 feet of fencing to go around the garden.
Let the width is x.
Length is 2 1/2 feet longer than the width i.e. (x+2 1/2) = (x+2.5) feet
Perimeter = 20 feet
2(l+b) = 20
(l+b) = 10
(x+2.5+x) = 10
2x+2.5 = 10
2x = 7.5
x = 3.75 feet
Length = (x+2.5)
= (3.75+2.5)
= 6.25 feet
So, the length of the garden is 6.25 feet.
Alberto is painting a square canvas. What is the length of each side?
A sequence is shown below. 4, 8, 16, 32, . . . Which formula can be used to determine the nth term in the sequence? Use the formula to find a8.
Answer:
a8 = 512.
Step-by-step explanation:
This is geometric sequence with common ratio r = 2 and first term a1 = 4.
nth term = a1 r^(n-1)
So a8 = 4 2(^8-1)
= 4 * 2^7
= 4*128 = 512.
I need to solve the equation and then graph the result
Answer:
[tex]p<-18[/tex]
graph:
find -18, and draw an arrow going right
The basketball team spends 20 minutes running laps and at least 15 minutes discussing plays. Practice lasts one hour and 45 minutes. Write an inequality to represent the amount of time to work on other drills. Just type in the final answer. Let: x=other drills
Answer:
x ≤ 75
Step-by-step explanation:
The computation of the inequality function is as follows:
Let us assume the remaining time left for other drills be x
Given that the team spends 20 minutes for running laps
And minimum of 15 minutes for discussing plays
Also practicing for last one hour and 45 minutes
Now as we know that
1 hour = 60 minutes
So total minutes would be
= 60 + 45
= 105 minutes
Total minutes spend by the team is
= 20 + 15
= 35 minutes
So now the remaining time left is
x ≤ 105 - 35
x ≤ 75
The data points represebt the number of swimmers at City Pool compared to the outside temperature (66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50) Use the regression equation to determine how many swimmer will be at the pool when the temperature is 88F? Round to the nearest whole number
Answer:
44 swimmers
Step-by-step explanation:
Given the data points :
66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)
Temperature X:
66
71
72
75
78
80
82
86
87
90
Number of swimmers Y:
8
23
16
30
35
24
37
37
42
50
Using the online regression calculator :
The regression model obtained is ;
ŷ = 1.5045X - 88.2056
Where
1.5045 = gradient or slope
-88.2056 = intercept
x = independent variable
y = dependent variable
Number of swimmers when temperature = 88
y = 1.5045(88) - 88.2056
y = 44.19
y = 44 (nearest whole number)
Answer:
44 Swimmers
Step-by-step explanation:
I did the test....
The sand pit for the long jump has a width of 2.7 meters and a length of 9.54 meters. Just in case it rains, the principal wants to cover the sand pit with a piece of plastic the night before the event. How many square meters of plastic will the principal need to cover the sand pit?
Answer:
A = 25.758 m²
Step-by-step explanation:
Width of the sand pit, b = 2.7 m
Length of the sand pit, l = 9.54 m
We want to cover the sand pit with a piece of plastic. We need to find how many square meters of plastic will be needed to cover the sand pit. It is equal to the area of sand pit. It is in the shape of rectangle. Its area is given by :
A = l × b
A = 2.7 × 9.54
A = 25.758 m²
So, 25.758 m² of plastic will be needed to cover the sand pit.
Does anyone know the correct choice for this question? If its correct ill mark you as the best answer choice! Please!
Answer:
F
Step-by-step explanation:
The slopes of H and J are 2/3 so those cannot be the correct answer. F will pass through the point (3,2). Hope this helps!
PLEASE HELP!!!!!!!!!
Answer:
23.9
Step-by-step explanation:
it just is so right
-(5n-9)+3n=-2(5n-20)
what is n?
Answer:
[tex]n=3.875[/tex]
Step-by-step explanation:
First, we can expand the brackets:
[tex]-(5n-9)+3n=-2(5n-20)[/tex] (given)
[tex]-5n+9+3n=-10n+40[/tex]
[tex]-2n+9=-10n+40[/tex] (combine like-terms)
[tex]8n=31[/tex]
[tex]n=3.875[/tex]
Hope this helps :)
Answer:
answer and explanation in the pics above
hope it helps
this is for uu!! HDHSHJSKSS
Answer:
oh boi its for me? yay
Step-by-step explanation:
Which equation is equivalent to y = -9/4(x - 8) + 6 when solved for x?
Answer:
X = -4Y/9 + 32/3
Step-by-step explanation:
you can solve for X by simplifying both sides of the equation then isolating the variable
The value of the given equation y = -9/4(x - 8) + 6 for the x will be x = -(4/9)y + 96/9
What is the equation?There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.
More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.
A formula known as an equation uses the same sign to denote the equality of two expressions.
In another word, the equation must be constrained with some constraints.
Given the equation,
y = -9/4(x - 8) + 6
By taking LCM in right-hand side
y = [-9(x - 8) + 24]/4
Cross multiply
4y = -9(x - 8) + 24
Interchange
9(x - 8) = 24 - 4y
9x - 72 = 24 - 4y
x = (4/9)y + 96/9
Hence "The value of the given equation y = -9/4(x - 8) + 6 for the x will be x = -(4/9)y + 96/9".
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Substitute and solve; 7(5f - 3n) -8 when n = 3 and f = 7
Answer:
174
Step-by-step explanation:
PLEASE HELP! Geometry Question. Im stuck on how to get the answer. Brainiest for correct answer
Answer:
F. [tex] 4, 4\sqrt{3} [/tex]
Step-by-step explanation:
✔️Finding length of side s using:
[tex] cos(\theta) = \frac{adjacent}{hypotenuse} [/tex]
Where,
[tex] cos(\theta) = cos(60) = \frac{1}{2} [/tex]
Adjacent = s
Hypotenuse = 8
Plug in the values
[tex] \frac{1}{2} = \frac{s}{8} [/tex]
Multiply both sides by 8
[tex] \frac{1}{2} \times 8 = \frac{s}{8} \time 8 [/tex]
[tex] \frac{8}{2} = s [/tex]
[tex] 4 = s [/tex]
s = 4
✔️Finding length of side q using:
[tex] sin(\theta) = \frac{opposite}{hypotenuse} [/tex]
Where,
[tex] sin(\theta) = sin(60) = \frac{\sqrt{3}}{2} [/tex]
Opposite = q
Hypotenuse = 8
Plug in the values
[tex] \frac{\sqrt{3}}{2} = \frac{q}{8} [/tex]
Multiply both sides by 8
[tex] \frac{\sqrt{3}}{2} \times 8 = \frac{q}{8} \times 8 [/tex]
[tex] \frac{\sqrt{3}}{1} \times 4 = q [/tex]
[tex] 4\sqrt{3} = q [/tex]
[tex] q = 4\sqrt{3} [/tex]
A side of the triangle below has been extended to form an exterior angle of 125°. Find the value of X
Answer:
x = 19°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, thus
x + 106° = 125° ( subtract 106° from both sides )
x = 19°
What is the square root of 243 reduced?
Answer:
9is√3
Step-by-step explanation:
I think I don't really know but that's my answer