The counterexample can be the angle can be 105 degrees.
What is counter example statement?A counterexample is an example in which the hypothesis is true, but the conclusion is false. If you can find a counterexample to a conditional statement, then that conditional statement is false.
However, showing that a mathematical statement is false only requires finding one example where the statement isn't true. Such an example is called a counterexample because it's an example that counters, or goes against, the statement's conclusion.
Given statement:
if an angle is acute then it measures 20 degrees
As, we know counterexample is an example in which the hypothesis is true, but the conclusion is false.
Also, acute angles measure less than 90 degrees.
Thus, the counter example will be if an angle is acute then it measures 105 degrees
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Select the correct description for the expression x+3/5
A. The quotient of a sum and a number
B. The quotient of a difference and a number
C. The product of a number and a sum
D. The product of a number and a difference
Answer:
the answer is A that's the answer
The table shows a ratio used to make orange paint. Using the table, how many quarts of yellow paint would be required to make this shade of orange if you used 9 quarts of red paint?
Answer:
7.5
Step-by-step explanation:
To make orange-shaded paint if we use 9 quarts of red paint we need 7.5 quarts of yellow paint.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given to make an orange shade paint 5 quarts of yellow paint and 6 quarts of red paint are needed.
Assuming the no. of yellow paint needed is x when 9 quarts of red paint is used.
As they are in direct proportion we can write
5 : 6 : : x : 9.
5/6 = x/9.
6x = 45.
x = 7.5.
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*PLS HELP ME ASAP 100 POINTS* There are 49 servings in a box of cereal. Each serving size is 1/7 of a cup of cereal. If one person eats 1 cup and another person eats 4 cups, how many cups are left in the box of cereal?
Answer:
2 cups left
Step-by-step explanation:
Someone please help I absolutely suck at these
Answer:
I believe it is C
Step-by-step explanation:
If f(x) = 4-x* and g(x) = 6x, which expression is equivalent to (g -)(3)?
O 6-3- (4 + 3)²
O6-3- (4- 3)
O 6(3) -4 +32
O 6(3) –4 -32
Answer:
The expression that equivalent to (g - f)(3) is 6(3) - 4 + 3² ⇒ C
Step-by-step explanation:
Let us solve the question
∵ f(x) = 4 - x²
∵ g(x) = 6x
→ Find at first (g - f)(x) by subtracting f(x) from g(x)
∵ (g - f)(x) = 6x - (4 - x²)
→ Remember (-)(+) = (-) and (-)(-) = (+)
∴ (g - f)(x) = 6x - 4 + x²
→ Substitute x by 3 to find (g - f)(3)
∵ (g - f)(3) = 6(3) - 4 + (3)²
∴ (g - f)(3) = 6(3) - 4 + 3²
The expression that equivalent to (g - f)(3) is 6(3) - 4 + 3²
PLZ HELP ME 30 POINTS TROLLERS WILL BE REPORTED
Answer:
56.25 B (haha troll go brrr)
Step-by-step explanation:
the ratio of the triangle measurements are:
60/45=75/x
60x=3375
x=56.25, therefore the distance of the new bridge is 56.25
9+2(3^2)
please help
Answer:
The answer is 27.
Step-by-step explanation:
9+2(3^2)
=9+18
=27
Answer:
27
Step-by-step explanation:
9 + 2(3²) = 9 + 2 * 9
= 9 + 18
= 27
Which expression is equivalent to StartRoot negative 108 EndRoot minus StartRoot negative 3 EndRoot?
5 StartRoot 3 EndRoot i
6 StartRoot 3 EndRoot i
7 StartRoot 3 EndRoot i
8 StartRoot 3 EndRoot i
(4√5)i
Step-by-step explanation:
Complex number is a number in the form a + bi, where both a and b are real numbers. A complex number has two parts, the first part a is the real part of the complex number and the second part b is the imaginary part of the complex number. Also, i = √(-1), hence i² = -1.
Complex numbers can also be graphed on the complex plane.
√(-80) = √(-1) × √(80)
But since √(-1) = i
√(-80) = i × √80 = i × √16 × √5 = i × 4 × √5 = (4√5)i
√(-80) = (4√5)i
Answer:
A
Step-by-step explanation:
edge 2020
the library labels each book with five digit code to identify the books in their computer system each code is 3 digits(0-9)followed by two letters how many codes are possible
Answer:
676000
Step-by-step explanation:
3 digits of the 5-digit code are number 0-9 which is 10 numbers that could go into that spot, after the three digits there are two letters and because there are 26 letters in the alphabet you would multiply 10*10*10*26*26 which equals 676000
2 - (7/8 - 3/4) what is the answer
Answer: hjhgxxhjhg
Step-by-step explanation:
A bag of coins contains only quarters and dimes. The number of dimes in the bag can be represented by x. The number of quarters is 6 more than twice the number of dimes. There are a total of 276 coins in the bag. What is x, the number of dimes in the bag?
Answer:
There are 90 coins in the bag.
Step-by-step explanation:
Let [tex]x[/tex], [tex]y[/tex] the number of dimes and quarters. Now we proceed to translate each relevant sentence into mathematical expressions:
(i) The number of quarters is 6 more than twice the number of dimes:
[tex]y = 2\cdot x + 6[/tex] (1)
(ii) There are a total of 276 coins in the bag:
[tex]x + y = 276[/tex] (2)
By applying (1) in (2), we find that the number of dimes is:
[tex]x+2\cdot x + 6 = 276[/tex]
[tex]3\cdot x = 270[/tex]
[tex]x = 90[/tex]
There are 90 coins in the bag.
if the jumping price is 18.50 per hour and the fee for socks is 3.25 what is the total cost in dollars for the 5 friends to jump for 1 hour the total cost is
Answer: $108.75
Step-by-step explanation: 18.50+3.25=21.75 Per Person 21.75x5=108.75
DO IT ASAP ONLY 3 PROBLEMS Please find x thanks!!! (There’s a link)
1.) x = 3.5
2.) x = -40
3.) x = -10
A water tank holds 693 gallons but is leaking at a rate of 4 gallons per week. A second water tank holds 924 gallons but is leaking at a rate of 7 gallons per week. After how many weeks will the amount of water in the two tanks be the same?
Answer:
Simple....
you have: one is leaking 3 gallons per week and holds 256 gallons; whereas, the other one is leaking 5 gallons per week and holds 384 gallons.
Set up both the equations....
In y=mx+b form--->>>
y=-3x+256
y=-5x+384
To figure out when they will be equal..set the equations equal to each other....(remember to isolate the variable)
-3x+256=-5x+384
-3x+256=-5x+384
-256 -256
-3x=-5x+128
-3x=-5x+128
+5x+5x
2x=128
x=64
After 64 weeks the amount of water in both tanks will be the same.
Thus, your answer.
Please HELP
Which statement is true ??
Answer:
the answer is d(<a=<b)
Step-by-step explanation:
because alternate interior angles are equal
I beg you to help me .
Answer:
16+3=y
y=19
Step-by-step explanation:
Does (–3, 9) make the equation y = –3x true?
Answer:
Yes, (-3,9) makes the equation of y = -3x true
Step-by-step explanation:
y = -3x (-3,9)
9 = -3(-3)
9 = 9
TRUE
Answer:
Move convo here
Step-by-step explanation:
3/4g=-12
solve and if you can explain the process bc I have no clue what I'm doing
Answer:
-16
Step-by-step explanation:
3/4 = 0.75
0.75 x -16 = -12
Is anyone good at writing? If you are plz help me with the question below.
How would you describe Betty's actions during the black blizzard? What does it reveal about Betty? This has to be 1 paragraph or less.
Answer:
Could you add a photo of the story being referred to the question? That would help
Step-by-step explanation:
Answer:
Betty was courageous and fearless in rescuing the colt, Fancifoot from the dust storm and in calming little Mary Ann. She cared less if you would be injured or blown away by the dust storm. Her actions revealed her love and care for the colt It also revealed her courage, determination, fearlessness and care.
Step-by-step explanation:
Maurine V. Elder, in this short story reveals the experiences of people who lived through the Dust Bowl. The Dust Bowl is a period of intense dust storms which occurred during the 1930s in parts of Kansas, Oklahoma, Colorado and other neighboring states. The dust storms is usually called the "black blizzard" In this short story, Elder explores the experience of Betty and Mary during the dust storm while their parents were away. Elder revealed Betty's actions as she took charge of the situation.
9x + 6 – 4x – 1x + 1 – 10
Answer:
4x-3
Step-by-step explanation:
9x+6-4x-1x+1-10
9x-4x-1x+7-10
5x-1x+7-10
4x-3
Helpp mee please It says Find base and height on a triangle?
Answer:
just mesuere it
Step-by-step explanation:
do it mesure it
8. A right triangle has an angle
measure of 52.40. What is the
value of x, the missing angle?
Answer:
The missing angle is 37.60 degrees.
Step-by-step explanation: 180-90-52.40=37.60
I WILL GIVE BRAINLIEST IF CORRECT The area of a square is 49 square centimeters. Find the length of a side. Find the length of the
diagonal
Answer: 7
Step-by-step explanation:
Since squares have the same side lengths
then you need to find a number that multiplies twice that equals 49
7*7 = 49
Answer: Length of a side: 7 / Length of the diagonal: 9.9
Explanation:
Just square root 49, so it becomes 7. That's the side length. In order, to find the diagonal of the square, just use Pythagorean Theorem, a^2+b^2=c^2. Because it's a quadrilateral, all of the sides should equal 7. a^2 would be 7 and b^2 would be 7. 49+49=98. Square root 98 and you would get 9.899... That would be estimated to 9.9.
At the movie theater all snacks and all movie tickets are priced the same. Four snacks and three movie tickets cost $40. Two snacks and three movie tickets are $32. What is the cost of a snack and movie ticket?
Write a systems that could be used to solve this problem. Let x = the cost of a snack in dollars and let y = the cost of a movie ticket.
We know that four snacks and three movie tickets cost $40 dollars, and when you take away 2 snacks but still keep the tickets, its $32.
2 snacks= $8
What i did to find the cost of each ticket is I divided 8 by 2 (8/2) and ended getting $4
1 snack= $4
Now to find the cost of each ticket, i divided 2 snacks ($8) and got this equation:
32 - 8= 24
3 tickets= $24
Now to find the amount for each ticket, i divided 24 by 3 (24/3) and got the answer:
1 ticket= $8
Therefore, snacks are $4 and movie tickets are $8
x tickets= 8x
x snacks= 4x
Thank you! Btw can i please get brainly :3
You and your friend walk to school together every day. You meet at the halfway point between your houses first and then walk to school. Each unit in the coordinate plane corresponds to 50 yards. A) What are the coordinates of the midpoint of the line segment joining the two houses? B) What is the distance that the two of you walk together?
Please show the steps
Answer:
no se
Step-by-step explanation:
The coordinate of the midpoint joining the two houses, since each unit on the coordinate is 50 units is (150, 250) and the distance walked to school is 254.95 yards
From the graph given :
The x - coordinate of the midpoint is 3 units from the origin = (3 × 50) = 150 yards
The y-coordinate of the midpoint is 5 units from the origin = (5 × 50) = 250 yards
Hence, the coordinate of the midpoint is (150, 250)
The distance walked to school :
Distance = √(y2 - y1)² + (x2 - x1)²
Distance = √(400 - 150)² + (300 - 250)²
Distance = √250² + 50²
Distance = 254.95 yards
Therefore, the distance the boys walk to school is 254.95 yards.
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Consider the polynomial function p(x)= -9x^9 +6x^6 -3x^3 +1.
What is the end behavior of the graph of p?
Answer:
The end behavior of the graph of p is:
f(x) → ∞ as x → -∞ and f(x) → -∞ as x → ∞
Step-by-step explanation:
Given the polynomial function
[tex]p\left(x\right)=\:-9x^9\:+6x^6\:-3x^3\:+1[/tex]
Since the leading term of the polynomial (the term in a polynomial that contains the highest power of the variable) is -9x⁹, then the degree is 9 i.e. odd, and the leading coefficient is -9, i.e. negative.
This means that f(x) → ∞ as x → -∞ and f(x) → -∞ as x → ∞
The graph is also attached below.
Thus, the end behavior of the graph of p is:
f(x) → ∞ as x → -∞ and f(x) → -∞ as x → ∞
Answer: B
Step-by-step explanation:
If it’s for khan
Remember the question that you helped me with?
can you tell me how I can show my work and get the answer
Because I need to show my work on those two problems
Can you guys also show your work to be and tell me how you guys got the answer because I need to show my work
Answer:
13. 23 boat rides; 22 are full, and the first one has 301 passengers.
12. $11,067.50
Step-by-step explanation:
13,105 people in a day, divided by 582 per ride.
13,105/582 = 22 (with a remainder)
582 x 22 = 12,804
So, the remainder is
13,105 - 12,804 = 301
23 rides, with 22 full and the first one having 301 people.
----------------------------------------------------------------------------------------------
There are 879,575 tickets sold across 755 theatres. Per theatre,
879,755 / 755 = 1,165 tickets per theatre
1,165 x $9.50 = $11,067.50 per theatre.
Which values for x make this inequality true?
−15x+4≤39
Answer:
x ≥ -7/3
Step-by-step explanation:
General Formulas and Concepts:Pre-Algebra
Order of Operations: BPEMDASBrackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Left to Right
Equality Properties
Step-by-step explanation:
Step 1: Define Inequality
-15x + 4 ≤ 39
Step 2: Solve for x
Subtract 4 on both sides: -15x ≤ 35
Divide -15 on both sides: x ≥ -7/3
Here we see that any value x greater than or equal to -7/3 would work as a solution to the inequality.
What is the third term of the expression
4x+8y+12xy
Answer:
12xy
Step-by-step explanation:
Each term is separated by a function sign. In this case, an addition symbol.
PLZ HELP I NEED THE ANSWER
Answer:
D I belive
Step-by-step explanation:
Answer:
i think its a
Step-by-step explanation: