The solution is (3,-5)
Một xe máy khởi hành a đến b cách nhau 160 km sau 1 giờ ô tô đi từ b đến a hai xe gặp nhau tại c cách b 72 km biết vận tốc ô tô hơn vận tốc xe máy là 20 km. Tính vận tốc mỗi xe
Answer:
74
Step-by-step explanation:
well, you see, потому что я плохая сука-ниггер, да бруддахол лмао
Please help me with this im pretty confused ?
Answer:
a=6
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
a^2 + 8^2 = 10^2
a^2 + 64= 100
a^2 +64-64 = 100-64
a^2 = 36
Take the square root of each side
sqrt(a^2) = sqrt(36)
a = 6
Answer:
a = 6
The length of side a is 6.Step-by-step explanation:
According to the question,
Using Pythagorean theorem
( a )² + ( b )² = ( c )²
Where, a and b are the base and c is the length of hypotenuse.( a )² + ( 8 )² = ( 10 )²
evaluate the exponent
a ² + 64 = 100
subtract 64 from each side
a ² + 64 - 64 = 100 - 64
a ² = 36
Take the square root of each side
√a² = √36
a = 6
Which equation is equivalent to 123x + 15 = 36?
O 3x + 15 = 3
O x + 15 = 9
O x + 15 = -6
O 3x + 15 = 24
Answer:
none if abive
Step-by-step explanation:
Please check your question .......
You buy a car for 12000 on a simple interest loan at a rate of 6% for 5 years. You will be financing the amount of car and interest. What is your monthly payment
Answer:
Monthly instalment = 260
Step-by-step explanation:
Below is the calculation of monthly instalment:
Price of the car, P = 12000
Simple interest, r = 6%
Number of years, t = 5 years
Interest amount = P x r x t
Interest amount = 12000 x 6% x 5
Interest amount = 12000 x 0.06 x 5
Interest amount = 3600
Total amount = 12000 + 3600
Total amount = 15600
Monthly instalment = 15600 / (5x12)
Monthly instalment = 260
hola
what's the answer pls show full explanation! 눈ㅊ눈
wrong answers are gonna get reported
Answer:
Step-by-step explanation:
Hope this helps u!!
>>>BIG BRAINS ONLY
How many ways can a supermarket chain select 4 out of 12 possible sites for construction of new supermarkets?
Answer:
6
Step-by-step explanation:
Answer:
I am pretty sure it's 495
Step-by-step explanation:
The context of this problem makes me think that the order in which the sites are in does not matter
if that's the case we can solve this using combinations
the combinations formula is as follows:
ACB= [tex]\frac{A!}{(A-B)!*B!}[/tex]
so 12C4= [tex]\frac{12!}{(12-4)!*4!}=495[/tex]
its a very simple question... wanna get brainliest. if so answer this ..
Did I colored the parts correct ... should the denominator be 4 instead of 2..???
1) Fidel had 12 boxes of paper plates. Each box contains 36 paper plates. He used 173 paper plates for the birthday party of his son. How many paper plates were left?
1 box= 36 paper plates
12 boxes = 12× 36 paper plates
= 432 paper plates
He used 173 paper plates for the birthday party of his son
No. of paper plates were left = 432-173 = 259
Question 7 of 10
Which of the following could be the ratio of the length of the longer leg of a
30-60-90 triangle to the length of its hypotenuse?
Check all that apply.
A. 3: 215
B.: 5
C. 15:15
D. 15:2
E. 1: 15
F. 33:6
Answer:
c,d
Step-by-step explanation:
its right
The area of a circle is 81π in². What is the circumference, in inches? Express your answer in terms of (Pie)
Answer:
18 pi inches
Step-by-step explanation:
The area of a circle is
A = pi r^2
81 pi = pi r^2
81 = r^2
Taking the square root of each side
9 = r
We can now find the circumference
C = 2 * pi *r
C =2 * pi *9
C = 18 pi
1.
Which inequality statement best represents the graph?
A. f(x) ≥ –x2 – x – 1
B. f(x) ≤ –x2 – x – 1
C. f(x) ≥ x2 – x – 1
D. f(x) ≤ x2 – x – 1
Answer:
f(x) ≤ x2 – x – 1
Step-by-step explanation:
Answer:
The graph will have opposite x-intercepts of b and –b and be symmetrical about the y-axis. The graph will have a y-intercept at –b2.
Step-by-step explanation:
i don't have the step by step explanation but that answer is also right
the x intercepts are b and b
the graph has opposite x intercepts
the graph is symetrical over the y axis
the y intercept is at b²
Answer:
f(x) ≤ x2 – x – 1
Does the following graph represent a function, Yes or No
Answer:
no
Step-by-step explanation:
Use the vertical line test to determine if it is a function
Since a vertical line touches more than one point on the graph, it is not a function
What is N + 9 = 27?
I am confused
Answer:
N = 18
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
Identify
N + 9 = 27
Step 2: Solve for N
[Subtraction Property of Equality] Subtract 9 on both sides: N + 9 - 9 = 27 - 9[Subtraction] Simplify: N = 18Without solving. what value for n makes this equation true?
Answer:
[tex]52[/tex]
Step-by-step explanation:
[tex]n + 94 = 32 + 114[/tex]
[tex]n + 94 = 146[/tex]
[tex]n = 146 - 94[/tex]
[tex]n = 52[/tex]
Hope it is helpful...The burglar has been leaving behind the ladder he or she uses to climb into the houses' windows. With this evidence, you can find out from which store the burglar is purchasing the ladders. Store A only sells ladders that are between 25 feet and 30 feet tall. Store B only sells ladders that are between 20 feet and 28 feet tall.
Answer:
store B
Step-by-step explanation:
How do I solve this. Please help!!
Answer:
x = 4[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then using the upper 45°
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{4}{x}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )
x = 4[tex]\sqrt{2}[/tex]
Answer it pls :)
Which values of m and b will create a system of equations with no solution? Select two options.
y = mx + b
y = -2x + 3/2
Answer:
first one because the second one is solvable through graphing
Step-by-step explanation: y = mx +b could be anything
(56 + 45) ÷ 9 = ( __ ÷ 9) + (45 ÷ 9)
i dont know
Answer:
just for yourself and you to a Dictionary with th
Dean is the manager of a restaurant and is evaluating whether or not the restaurant has enough parking spaces. At ten different times during the day, he gathered information about the number of customers in the restaurant and the number of cars in the parking lot. He represented the data with the given scatter plot and drew the line of best fit.
Based on the line of best fit, approximately how many customers will be in the restaurant when there are cars parked in all 40 of the restaurant's parking spaces?
A.
115
B.
140
C.
145
D.
170
Answer:
d
Step-by-step explanation:
What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3
O 3x-y-7=0
x - 3y + 7 = 0
Ox-3y - 7 = 0
O-X + 3y - 7 = 0
Answer:
x- 3y -7 =0
Step-by-step explanation:
Point slope form is
y-y1 = m(x-x1) where m is the slope
y - -2 = 1/3 (x-1)
y+2 = 1/3 (x-1)
Multiply each side by 3 to get rid of the fraction
3y +6 = x-1
Subtract 3x from each side
6 = x-3y -1
Subtract 6 from each side
0=x -3y -7
x- 3y -7 =0
The general form is
Ax +by +C = 0 where A , B C are integers and A > 0
Answer:
x-3y-7=0
Step-by-step explanation:
[tex]y=\frac{1}{3} x+c\\-2=\frac{1}{3}\times 1+c\\c=-\frac{7}{3} \\y=\frac{1}{3} x-\frac{7}{3}\\\\3y=x-7, 0=x-3y-7[/tex]
can someone pls pls help me?
Answer:
3mm²
Step-by-step explanation:
Use the triangle area formula 1/2×base×height
[tex] \frac{1}{2} \times 2 \times 3 \\ = 3[/tex]
Find the next three terms of the sequence 80, –160, 320, –640, . . .
1,280, –2560, 5120
–880, 1040, –880
–640, 1280, –2560
–1280, 2560, –5120
Answer:
890
Step-by-step explanation:
i hope this helped
Answer:
1,280, –2560, 5120
Step-by-step explanation:
I got it right on grandpoint.
Which of the following is NOT an arithmetic sequence?
Answer:
2,4,8,16,32
Step-by-step explanation:
Arithmetic sequences are when a number is added constantly. An example will be 1,2,3,4,5.
In this case, the answer is 2,4,8,16,32 because it is multiplied not added. Therefore, this is the correct answer.
If this helps please mark as brainliest
What is the value of xin this triangle?
Enter your answer as a decimal. Round only your final answer to the
nearest hundredth.
32 58
Answer:
33.48
Step-by-step explanation:
Find the diagram attached
Opposite = 32
Hypotnuse = 58
Sin theta = opposite/hypotenuse
Sin theta = 32/58
Sin theta = 0.5517
theta = arcsin(0.5517)
theta = 33.48
Hence the value of x to the nearest tenth is 33.48
Math show work thanks
Answer:
30m x 40m
Step-by-step explanation:
The diagram is 15cm x 20cm
since 1cm = 2m
the backyard measures
30m x 40m
Answer: The backyard is 30 meters by 40 meters
30 meters = horizontal dimension
40 meters = vertical dimension
===========================================================
Explanation:
The pool on paper is 7.5 units across horizontally. Applying the scale factor, we can see that it corresponds to 7.5*2 = 15 meters
The 20 meter portion is vertical. On paper, we see that it's 10 units tall. So the "times 2" operation applies to jump from 10 cm to 20 meters
Or you could note that the ratio 1 cm : 2 m scales up to 10 cm : 20 m after multiplying both parts by 10.
-----------------
With that in mind, all we need to do really is count the number of squares across the top and along the left side. Across the top, we have 15 squares. That 15 cm corresponds to 15*2 = 30 meters in length.
Along the left side, the figure is 20 cm tall. So that corresponds to 20*2 = 40 meters.
The backyard is 30 meters by 40 meters. This includes the backyard, shed, and other features in the diagram. The entire backyard is 30*20 = 600 square meters. If you wanted to know the area of the grass only, then you'd subtract off the areas of the pool, shed, etc.
-----------------
Your teacher mentions that the pool is similar to the backyard overall. Since we're in a geometry setting, the word "similar" is very specific of course.
We can match up the corresponding lengths to form a proportion like so
(large horizontal)/(small horizontal) = (large vertical)/(small vertical)
30/15 = 40/20
2 = 2
So that confirms we have similar figures, at least in terms of the sides being proportional. Everything being a rectangle helps show that all angles are the same.
What angle relationship best describes angles EFC and EFD?
Explanation:
A linear pair of angles is where they are both adjacent and supplementary.
Adjacent angles share a common line or ray. In this case, they share ray FE.
Supplementary angles add to 180. So they combine to a straight angle.
Answer:
Linear pair
Step-by-step explanation:
Their nonadjacent sides formed a line
A four-inch line segment is dilated at the midpoint by a scale factor of 2. What is the length of its image?
Which is a simplified form of the expression 2(y + 1) + 2(y – 2)?
A. 2y + 1
B. 4y - 2
C. 2y - 1
D. 4y - 3
B. 4y - 2
Hope this helps! :)
Answer:
B. 4y - 2
Step-by-step explanation:
2( y + 1 ) + 2( y - 2 )
= 2y + 2 + 2y - 4
= 2y + 2y + 2 - 4
= 4y - 2
= 4y - 2
please help i’m failing math right now!!! will mark brainlyist
Step-by-step explanation:
Write what tou know
volume of a cone
V = (πr2h)/3
d =2.2in
r = d /2
h = 1.8
evaluate that
to find ounces
amount of ounces = Volume of cone x 0.554
A biologist is studying the growth of a particular species of algae. She writes the fall inclusion to show the radius of the algae, f(d), in mm, after d days: f(d)=5(1.02)^d
Part A- When the biologist concluded her study, the radius of the algae was approximately 6.34mm. What is a reasonable domain to plot the growth function
Part B- What does the y-intercept of the graph of the function f(d) represent?
Part C- what is the average rate of change of the the function f(d) from d=4 to d=11, and what does it represent?
Answer:
Part A)
A reasonable domain to plot the growth function is:
[tex]0\leq d \leq 12[/tex]
Part B)
The y-intercept represents that when the biologist started her study, the radius of the algae was five millimeters.
Part C)
The average rate of change from d = 4 to d = 11 was about 0.11. This means that from the 4th day to the 11th, the radius of the algae grew, on average, at a rate of 0.11 mm per day.
Step-by-step explanation:
The radius of the algae f(d) in millimeters after d days is given by the function:
[tex]f(d)=5(1.02)^d[/tex]
Part A)
We know that the radius of the algae was approximately 6.34 mm when the biologist concluded her study. To find the reasonable domain, we can substitute 6.34 for f(d) and solve for d. Therefore:
[tex]6.34=5(1.02)^d[/tex]
Divide both sides by five:
[tex](1.02)^d=1.268[/tex]
Take the log of both sides with base 1.02:
[tex]\displaystyle d=\log_{1.02}1.268[/tex]
Using the Change of Base Property, evaluate for d:
[tex]\displaystyle d=\frac{\log 1.268}{\log 1.02}=11.9903...\approx 12[/tex]
So, the biologist concluded her study after 12 days.
Therefore, a reasonable domain to plot the growth function is:
[tex]0\leq d\leq 12[/tex]
Part 2)
The y-intercept of the function is when d = 0. Find the y-intercept:
[tex]f(0)=5(1.02)^{(0)}=5(1)=5[/tex]
Since d represent the amount of days after the study had begun, the y-intercept represents the radius of the algae on the initial day.
So, when the biologist started her study, the radius of the algae was five millimeters.
Part 3)
To find the average rate of change for a nonlinear function, we find the slope between the two endpoints on the interval.
We want to find the average rate of change of f(d) from d = 4 to d = 11.
Find the endpoints:
[tex]f(4)=5.4121...\text{ and } f(11)=6.2168...[/tex]
And find the slope between them:
[tex]\displaystyle m=\frac{f(11)-f(4)}{11-4}=0.1149...\approx 0.11[/tex]
Since f(d) measures millimeters and d measures days, this tells us that, on average, the radius of the algae grew by about 0.11 mm per day from the 4th day to the 11th day.