Answer:
Infinite
Step-by-step explanation:
Here are a system of how two equations can be classified ;
• If the gradients are the same but the y-intercepts are different, the system has no solution.
• If the gradients are different, the system has one solution.
• If the gradients are the same and the y-intercepts are the same, the system has infinitely many solutions.
Here is the proof.
3y - 9x = -6
5y - 15x = -10
In
3y - 9x = -6
When x =1
y= 1
When x=3
y= 7
Gradient of 3y - 9x = -6
=∆y/∆x
= (7-1)/ ( 3-1)
=(6)÷ 2
= 3
5y - 15x = -10
When x= 1
y = 1
When x=3
Y=7
Gradient of 5y - 15x = -10
=∆y/∆x
= (7-1)/ ( 3-1)
=(6)÷ 2
= 3
Since the gradients are the same the system has infinitely many solutions.
Question 1
Solve for
using the similar triangles. Round to the nearest tenth. (For example, 10.578 would round to 10.6)
Question 2
Find the height of the tree to the nearest whole meter using the two similar triangles below. (For example. 10.57
3 m
30 m
Please answer fast thank you
Answer:
1)x=21.33
2)Height of tree is 20 m
Step-by-step explanation:
Question 1
ΔABC ≈ΔADE
Property of similar triangles :Corresponding sides of similar triangles are all in the same proportion
So,[tex]\frac{AB}{AD}=\frac{BC}{DE}\\\frac{AB}{AB+BD}=\frac{BC}{DE}\\\frac{12}{12+6}=\frac{x}{32}\\\frac{12}{18}=\frac{x}{32}\\\frac{12}{18} \times 32 =x\\21.33=x[/tex]
Question 2: Find the height of tree
ΔDEF ≈ΔDHI
Property of similar triangles :Corresponding sides of similar triangles are all in the same proportion
So,[tex]\frac{DE}{DH}=\frac{EF}{HI}\\\frac{3}{30}=\frac{2}{HI}\\HI=\frac{2 \times 30}{3}\\HI=20[/tex]
Hence The height of tree is 30 m
Math question down below
Answer:
24
Step-by-step explanation:
1 US Gallon = 8 US Pints
3 US Gallons = 24 US Pints
x/7 > -2. Solve and graph. Help.
A man has 1/4 of a kilogram of couscous. He shared them equally among 2 people. How many kilograms does each person get? Input your answer as a fraction of a kilogram.
I got an answer that felt way off... I just need to make sure I'm right!
Answer:
1/8 maybe
Step-by-step explanation:
Answer:
1/8
Step-by-step explanation:
Enter a number in the box to make this a true number sentence.
5*(6 - 4) = (5x6) -(5x__)
Answer:
4
Step-by-step explanation:
5 x 6-4 = 20
5x6 - 5x4 = 20
Answer:
4
Step-by-step explanation:
because if you look at first 5x(6-4) split them and you get (5x6) and (5x4)
hope you like answer
plz help
An album sells for $14.00 through an online music service. If the album is 20% off, and sales tax is 8%, what is the total price of the album including tax?
Answer:
$12.10
Step-by-step explanation:
(.20) 14 = 11.20
.08(11.20)= ABOUT .90
ADD .90 to 11.20
to get the final cost with tax. ;)
|5−4r|=17
Can someone answer this question for me?? I will mark you brainliest if you get the correct answer!!
Answer:
R=-3 which is the same thing as 11/2
Step-by-step explanation:
Answer:
r=−3,11/2
Step-by-step explanation:
thats what I got
Andrea opened a bank account for her daughter Hannah, with a deposit of $ 1,750 . The account will earn 2% simple interest annually. How many months will it take her to earn interest in the amount of $245 on her deposit?
Answer:
84 months
Step-by-step explanation:
I × 100 = P × R × T
I = interest = $245
P = principal = $1750
R = rate = 2%
T = time(in years) = ??
245 × 100 = 1750 × 2 × T
24500 = 3500T
24500/3500 = T
7 = T
To convert the time to month:
7 × 12 = 84 months
please help!! what is the solution to the equation
Answer:
A the first option
Find the missing angle.
Answer:
127
Step-by-step explanation:
Answer:
x= 127 degrees
Step-by-step explanation:
use the vertical angles theorem to say that x=90*+37*. So, x=127 degrees.
Frank will paint a wall that measures 10 feet by 14 feet what is the area of the wall that frank will paint
Answer:
140 ft squared
Step-by-step explanation:
Answer:
140 ft
Step-by-step explanation:
10 × 14 = 140 so the answer is 140 ft
help please, what is the the perimeter of the figure to the nearest hundredth.
Answer:
100
Step-by-step explanation:
Which statement best describes the function represented by the graph?
Answer:
Step-by-step explanation:
You read a graph from left to right, just like you would read words on a page in a book. At the left-most "side" of this graph, we are way up at positive infinity. As we move from left to right, the graph begins to drop in y values. A drop in y values indicates a decreasing graph. So it's decreasing, we have that part. As the graph grows up into y values that increase forever, it will also grow in the x direction to negative infinity. As the graph decreases in y values from left to right, the x values increase into positive infinity. So your choice is the second one: The function is decreasing on the interval (-∞, ∞).
Answer:
It's B
Step-by-step explanation:
Which steps should you follow to write an equivalent ratio to find 120% of 700?
part
120 x 1
700 x1 =
120
170
whole =
583
part
whole
100 x 5.83
120 x 5.83
= 700
part
whole
700 x 7
100 x 7
4,900
700
part
120x7 840
whole - 100 X 7 - 700
Answer:
its D 100%
Step-by-step explanation:
Answer:
Its D
Step-by-step explanation:
Got 100% today :0
Which description best compared the graph of the two functions below?
Answer:
The description that best compares the graph of the two function is:
The line for function A is steeper.
Step-by-step explanation:
Answer:
The line for function a is a steeper
Step-by-step explanation:
If AQSR - AYXZ describes two triangles, which other statement is also true?
Answer:
RSQA ~ ZXYA
Step-by-step explanation:
PLEASE HELP AGAIN, SORRY I SUCK AT MATH.
Answer:
C. 24 degrees
Step-by-step explanation:
All triangle must be 180 degrees in total. So you have to add all the known degrees together to find the missing degree.
120+36=156
Then subtract the sum of the known angles from 180 to find the degree of the unknown angle
180-156=24
Answer: C
Step-by-step explanation:
I'll explain why.
The sum of the angles in a triangle must be equal to 180º. We already know 2 of the 3 angles, therefore, we can make an equation to find x.
The sum of the angles (x+36+120) must be equal to 180 (=180)
x+36+120=180
Combine like terms
x+156=180
Subtract 156 to isolate x
x=180-156
x=24
Ying Zyiyu covered the first 300 miles of a trip going at 60 mph and the last hundred going at 40 mph. What was his average speed for the entire trip?
NEED IN 5 MINUTES
Answer:
Average speed is (total distance)/(total time).
To find the total time we need to do some division.
Time for 200 miles=200/50=4 hours.
Time for 100=100/40=5/2 hours.
Total time=13/2 hours. Total distance=200+100=300 miles.
Av speed=300/(13/2)=300×2/13=600/13=46.15 mph approx.
A functiom is graphed on the coordinate plane.
What is the value of the function when x=4?
Answer: The answer is 2. Go open of the x line 2 then it lines up with the y.
Answer:
I thought it was 1
Step-by-step explanation:
Shannon has a bag of jelly beans.
5 Green
2 Red
3 Blue
What is the theoretical probability of
her selecting a red jelly bean?
Answer:
1/5 (20%)
Step-by-step explanation:
1. Find sample size by adding all numbers together
5 + 2 + 3 = 10
2. Since the jelly bean we are finding the probability of is red, 2 will be the nominator of the fractions
3. Make fraction
2/10
4. Simplify
1/5
Hope this helped! Comment if you have any questions. :)
Write a number b increased by 3 as an expression.
Answer:
b+3
Step-by-step explanation:
The variable is "b", and increased is adding (+).
~Anna
Answer:
F(b)=b+3
Step-by-step explanation:
A mixed number contains a whole part and a ___ part.
answer and i give you braiest
Answer:
fraction
Step-by-step explanation:
a mixed number is a whole number with a fraction with it
a circle is centered at (-4,9)and has a radius of 11. what is the equation of the circle. use x and y
Answer:
(x + 4)^2 + (y-9)^2 = 121
Step-by-step explanation:
We can write the equation of a circle as
(x-h)^2 + (y-k) ^2 = r^2 where (h,k) is the center and r is the radius
(x - -4)^2 + (y-9)^2 = 11 ^2
(x + 4)^2 + (y-9)^2 = 11 ^2
(x + 4)^2 + (y-9)^2 = 121
math question down below screen shot
Answer:
the screen shoy isnt showing up
Step-by-step explanation:
Which statement is true?
Answer:
all parallelograms are rectangles
Step-by-step explanation:
the have 2 sets of parallel lines that are equal in length
Pleas choose correct answer
Answer:
b
Step-by-step explanation:
can someone help me please?
Answer:
(10,11)
(8,7)
(6,3)
(4,-1)
(2,-5)
(0,-9)
(-2,-13)
(-4,-17)
Answer: the image of how its supposed to be graphed is listed down below! hope this helped!
Step-by-step explanation:
The graph of a function f is the set of all points in the plane of the form (x, f(x)). We could also define the graph of f to be the graph of the equation y = f(x). So, the graph of a function if a special case of the graph of an equation.
2/3 divided by 1 1/2
Answer: 0.4
Step-by-step explanation:
Probability of landing in the white not the red. Please helpppppppppppp!
Fun, geometry disguised as probability.
That's a pentagon, which we can view as 10 right triangles with legs a and s/2 (half of s) and hypotenuse r. So area of the pentagon is
P = 10 × (1/2) a (s/2) = 10 (1/2) (3.2) (4.7/2) = 37.6
The area of the circle is πr² so the circle area is
C = π (4²) = 50.265482
The white area is the difference, C-P, and the probability we seek is the fraction of the circle that's white, so (C-P)/C.
p = (C-P)/C =1-P/C = 1-37.6/50.265482 = 0.251971
Answer: 0.25
Higher than I would have guessed from the figure.
What is 3 to the power of three halves equal to?
Answer:
[tex]3\sqrt{3}[/tex] or ≈5.196
Step-by-step explanation:
We can write the given information as an exponent:
[tex]3^{\frac{3}{2} }[/tex]
We know that the denominator represents the root, and the numerator represents the power. This gives us:
[tex]\sqrt[2]{3^{3} }[/tex]= [tex]\sqrt{27}[/tex]= [tex]3\sqrt{3}[/tex]