Answer:
The correct counterexample is [tex]b \leq 6[/tex].
Step-by-step explanation:
We proceed to demonstrate the validity of given implication by direct demonstration and use of our knowledge in algebra:
1) [tex]a + b \leq 8[/tex] Given.
2) [tex]a = 2[/tex] Given.
3) [tex]2+b \leq 8[/tex] 2) in 1)
4) [tex]2 + b +(-2) \leq 8 +(-2)[/tex] Compatibility with addition.
5) [tex]b+[2+(-2)]\leq 6[/tex] Commutative and associative properties/Definition of subtraction
6) [tex]b \leq 6[/tex] Existence of additive inverse/Modulative property/Result.
This contradicts what implies the given proposition. The correct counterexample is [tex]b \leq 6[/tex].
PLSSSS HELP ME TwT 100 pts
Answer:
first one is lined correctly second one is lined up to the last one third one is lined perfectly and fourth is lined to the second one
Step-by-step explanation:
Answer:
don t know
Step-by-step explanation:
5000 jumps for 8 hours ___ per hour
Answer:
This is 625 jumps an hour.
ano ang kahulugan ng kaluwagang palad
Answer:
pagiging matulungin sa kapwa
based on the scores in the chart below which restaurant is the best choice for the dinner tonight and why
A.Ku's Chinese buffet, because it had a total score of +2
B ku's Chinese buffet, because it has s total score of +12
C Umberots Italian Restaurant, because it has a total score of +3
D Umberots Itaian Restaurant, because it has a total score of +9
Answer:
B
Step-by-step explanation:
Ku's since it has the highest score with +12
Choose all of the numbers below that are perfect squares. You must select all that apply.
200
361
121
50
225
4
please help meh
Answer:
361 121 225 4
Step-by-step explanation:
you can square root these numbers to get a whole number
Helpppppppp ill give brainliest
1. |-19-12|
2. |19-(-12)|
3. |10 - (-42)|
4. |-10 - 43|
5. |-1 - (-16)|
6. | 1-16|
7. | 0 - (-9) |
8. |0 - 9|
9. |-14.5 - 13|
10. | 14.5 - (-13)|
Answer:
1. -31
2. 31
3. 42
4. -53
5. 15
6. -15
7. 9
8. -9
9. -27.5
10. 27.5
Step-by-step explanation:
Sorry if some of them are wrong.
Lana collects 20-cent and 50-cent coins. The total value of her coins is currently $9.70. If Lana has 4 more 50-cent coins than 20-cent coins, how many of each type does she have? Thanks.
What is the equation of a line perpendicular to y = -5x + 4 that passes through (-10, 6)?
Answer: y= 1/5 x + 8
Step-by-step explanation:
To get a perpendicular line, take the reciprocal of the original "m" in the equation and reverse the sign.
- 5 becomes +1/5
Then substitute the y and x values from the given coordinate into the new equation and solve for b
y= mx+b
6=1/5 (-10) + b
6 = -2 +b
8 = b rewrite the new equation and substitute 8 for b
y= 1/5 x + 8
The attached screenshot shows the lines and the point.
More than question on this check my page for more and please give me step for step thanks
Answer:
the angle measures of 14° and x° are adjacent angles that makes the right angle. Therefore the sum of the angle is 90. This then gives x+14=90 x=76
AND OMG HIII ARMY !
A turtle travels one half of a foot in 4 seconds. How many feet will a turtle travel in 7 seconds?
Answer: 10.5 inches or .875 feet.
Step-by-step explanation:
First calculate the SPEED = Distance /Time. So 1/2 of a foot = 6 inches so distance of 6 inches divided by time of 4 sec = s 1.5 (inches) per sec. So using Distance = speed x time we calculate 1.5in x 7 sec= a distance of 10.5 inches or 10.5 inches divided by 12in that is in a foot = .875 feet.
PLEASE ANSWER ASAP!!!!!!!!!!!! I WILL GIVE BRAINLIEST!!!!!!!!
Which equation represents a proportional relationship that has a constant of proportionality equal to 5?
y= x - 1/5
y= x+ 1/5
y= 1/5x
y= 5x
Answer:
Y=5x
Step-by-step explanation:
The first the options aren’t even whole numbers
y=5x
that is the correct answer because the constant is 5 and as long as the constant is 5 the upcoming numbers after that will the a multiple of 5. I hope the helps!!
Christina buys a balance beam priced at $251.80. Shipping and handling are an additional
30% of the price. How much shipping and handling will Christina pay?
Answer:
$75.54
Step-by-step explanation:
30% of 251.80 is 75.54 hope that helped :3
36 x 79 whats the answer show your work pls
79×36=2,844 is the multiplied amswer
PLZ HELP QUICK ILL MARK BRAINLEIST!!!
hmm through my critical thinking I belive it's B
what is the slope if the line is 5y= 10x-15
Answer:
slope = 2
Step-by-step explanation:
y = mx + b
M is the slope
5y = 10x - 15
y = 2x - 3
2 is the m in this equation
I hope this helped!
12 miles below sea level
Answer:
12 miles below sea level
Step-by-step explanation:
Michael's family was traveling to visit prospective colleges
They drove to the closest college that
interested him, took a tour, and then drove to another
college a little farther from home. The graph shown
represents the situation.
Answer:
Step-by-step explanation:
Domain is defined by the input values (x-values) on the graph.
Range is defined by the output values (y-values) on the graph.
From the graph attached,
Domain: [0, 5]
Range: [0, 300]
Maximum point of the graph is (5, 300). It denotes that Michael's family took 5 hours to reach the maximum point which is 300 miles from their home.
Please help with this question!!
The distance, d, that a certain car is from Math City after h hours, can be determined by the equation d=45h. The distance that a second car is from Math City can be determined by the equation d=25h+80. After how many hours will the two cars be the same distance from the Math City?
Answer:
4 hours
Step-by-step explanation:
First car distance
d = 45h
Second car distance
d = 25h + 80
After how many hours will the two cars be the same distance from the Math City?
Equate both car's distances
45h = 25h + 80
Collect like terms
45h - 25h = 80
20h = 80
Divide both sides by 20
h = 80 / 20
= 4
h = 4 hours
The two cars will be at the same distance from the Math City in 4 hours
What are the roots of the equation x²
14x + 53 = 0 in simplest a + bi form?
Answer:
The answer is 7±2i
Step-by-step explanation:
THIS IS ONE HUNDRED PERCENT CORRECT. My teacher told me. So the symbol between them is like an underscore an a plus in one. I cant type is that easy so I tried my best.
Write an equation of a line with the given slope and y-intercept:
m=1, b=4
y = 4x + 1
y = x - 4
OA)
OB)
y=-1x + 4
y = x +4
Answer:
y=x+4
Step-by-step explanation:
y=mx+b
The average price of a movie ticket in the United States from 1980 to 2000 can be modeled by the expression, 2.75+0.10x, where x is the number of years since 1980. Which part of the expression corresponds to the cost of movie tickets in 1980?
Answer:
$4.7Step-by-step explanation:
step one:
Let the cost be y
to solve for the cost of a movie ticket, we need to solve the expression
y=2.75+0.10x
step two:
given that x is the number of years between 1980-2000
the number of years is 20years
put x= 20 in the expression for the cost we have
y=2.75+0.10(20)
y=2.7+2
y=$4.7
I need help with this please
Answer:
the bottom answer choice : segment TD
Step-by-step explanation:
Hello.
We know that ΔSJL ≅ ΔDMT
∠S ≅ ∠D
∠J ≅ ∠M
∠L ≅ ∠T
__ __
So the segment LS corresponds to segment TD
Jeremy stands on the edge of a river and throws a rock into the water. The rock leaves his hand at a height 4 feet above the water. The rock reaches the highest point along its path when it is a horizontal distance of 28 feet from his hand and 17 feet above the water. Write a function to represent the height of the rock in terms of its distance from Jeremy’s hand.
Answer:
The height, h, of the rock as a function of the horizontal distance from Jeremy's hand is h = -13/784·(x - 28)² + 17
Step-by-step explanation:
The given parameters are;
The height of the rock above the water when it leaves Jeremy's hand = feet
The maximum height of the rock = 28 feet
The horizontal distance at maximum height = 17 feet
Therefore, the given coordinates of the maximum height = (28, 17)
The equation of a parabola in vertex form is f(x) = a(x - h)² + k
Taking the maximum point as the vertex of the parabola, we have;
(h, k) = (28, 17)
Substituting the values gives;
f(x) = a·(x - 28)² + 17
At x = 0, the height = 4, we have;
f(0) = 4 = a·(0 - 28)² + 17
4 - 17 = a×28²
-13 = 784 × a
a = -13/784
Therefore, the height of the rock, f(x) = h, as a function of the horizontal distance from Jeremy's hand is therefore;
f(x) = h = -13/784·(x - 28)² + 17
Find the values of x and y.
18.
120°=(2x + y)°
(2x - y)°=140°
Answer:
x = 65, y = - 10
Step-by-step explanation:
Given the 2 equations
2x + y = 120 → (1)
2x - y = 140 → (2)
Adding the 2 equations term by term will eliminate y, that is
4x = 260 ( divide both sides by 4 )
x = 65
Substitute x = 65 into either of the 2 equations and evaluate for y
Substituting into (1)
2(65) + y = 120
130 + y = 120 ( subtract 130 from both sides )
y = - 10
A crystal ball with a diameter of 6 inches is being packaged for shipment. If the crystal ball is placed inside a
circular cylinder with radius 3 inches and height 6 inches, how much volume will need to be filled with
4
padding? (The volume of a sphere with radius r is ar?, and the volume of a right circular cylinder with
radius r and height is arh.) Use "pi" for 7.
of padding will be needed.
Зn + 16 = 7n help pls
Answer:
n = 4
Step-by-step explanation:
3n + 16 = 7n
Cancel out the 3n by subtracting it from both sides
16 = 4n
Divide both sides by 4 so you are left with n=
4 = n
Answer:
[tex]n=4[/tex]
Step-by-step explanation:
To start off you need to subtract 3n from both sides. That would leave you with:
[tex]16=4n[/tex]
Next, you need to divide both sides by 4, since this equation is equal to [tex]n*4[/tex] and we only want a single n, not multiple. That would give us the answer:
[tex]4=n[/tex]
ZB
Round your answer to the nearest hundredth.
А
5
B
4
C
Answer:
The answer is 36.87°Step-by-step explanation:
Since it's a right angled triangle we can use trigonometric ratios to find the value of B
To find the value of B we use cosine
That's
cos∅ = adjacent / hypotenuse
From the question
adjacent = 4
hypotenuse = 5
We have
[tex] \cos(B) = \frac{4}{5} \\ B = { \cos }^{ - 1} ( \frac{4}{5}) \\ = 36.869897645...[/tex]
We have the final answer as
36.87° to the nearest hundredthHope this helps you
Solve for s.
2/3s+5/6s=2/1
all the numbers are fractions
Answer:
s = [tex]\frac{4}{3}[/tex]
10x - 12 = ??? plz help me out ❤
Answer:
-120
Step-by-step explanation:
Find the rate of discount being given on a shirt whose selling price is $ 546 after deducting a discount of $ 104 on its marked price.
