Answer:
The answer is B or -3.132
Step-by-step explanation:
You are multiplying 2 negatives and a positive, so it guarantees it will be negative! Hope this helps!
A man can type 21 words per minutes. how long will it take him to type 3780 words
Find a counterexample to show that the given conjecture is false:
The sum of two positive even integers is always an odd integer.
Answer:
20 + 16 = 36
Step-by-step explanation:
The conjecture: "The sum of two positive even integers is always an odd integer" can be easily be proven false with a counterexample.
Pick A=20 and B=16, both are positive even integers.
The sum of both A + B = 36 is an even integer. This is a counterexample because being even is the contrary of being odd.
Counterexample: 20 + 16 = 36
In fact, the conjecture is always false, since there cannot be found any pair of positive integers whose sum is odd.
Other possible counterexamples are:
10 + 8, 700 + 40, 12 + 14, etc.
7+7 please help me i need help quick right away
Answer:
very funny and 14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
7 plus 7? how old are you?
un icosagono es un poligono que contiene 20 lados, cuantas diagonales se pueden trazar desde todos sud vertices si cada lado mide 15cm y su area es 900cm2?
Answer:
El número de diagonales de un icoságono = 170 diagonales
Step-by-step explanation:
Los parámetros dados son;
El número de lados del polígono = 20
La longitud de cada lado = 15 cm.
El área del polígono = 900 cm²
La fórmula para encontrar el número de diagonales, ∑D, de un polígono de n lados se presenta como sigue;
Número de diagonales, ∑D = n (n - 3) / 2
Por lo tanto, el número de diagonales de un icoságono (20 lados) ∑D (20) es;
∑D (20) = 20 × (20 - 3) / 2 = 170 diagonales.
Se pueden trazar 170 diagonales en un icoságono.
Matemáticamente, es posible determinar la cantidad de diagonales en función del cantidad de lados del polígono a través de la siguiente fórmula:
[tex]d = \frac{n\cdot (n-3)}{2}[/tex] (1)
Donde:
[tex]d[/tex] - Cantidad de diagonales.[tex]n[/tex] - Cantidad de lados.Si sabemos que [tex]n = 20[/tex], entonces la cantidad de diagonales del icoságono es:
[tex]d = \frac{20\cdot (20-3)}{2}[/tex]
[tex]d = 170[/tex]
Se pueden trazar 170 diagonales en un icoságono.
Invitamos cordialmente a ver esta pregunta sobre polígonos: https://brainly.com/question/10956189
Scientific notation
Express this number in scientific notation.
245,600,000,000
Answer: 2.456 x 10 to the power 11
Step-by-step explanation: Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Answer:
2.456 x 10 to the power 11
Step-by-step explanation:
Select the correct answer.
Which complex number is equivalent to the given expression?
(2 + i)(8 – 3i) – (23 + 34i)
Answer:
-47
Step-by-step explanation:
Answer:
-4 - 32i
Step-by-step explanation:
Got it right on the test
What is y +3 = 7(2 – 2) written in standard form?
Choose 1 answer: :
А)
-7x +y = -5
B
y=73 – 5
С
y = 7x – 17
– 7x + y = -17
Answer:
C)
Step-by-step explanation:
y+3=7x+7•−2
Multiply 7 by −2.
y+3=7x−14
Rewrite the equation with the sides flipped.
7
x
−
14
=
y
+
3
What is the length of DE?
2.9 units
7.2 units
12.5 units
Answer:
7.2 units
Step-by-step explanation:
Estimate and Guess
We know that it cannot be 2.9 units long, because it slanted is 6 units long. The closest value to that is 7.2 units.
Answer: 7.2 units
2(7y−1)= 40 what is y?
Step-by-step explanation:
[tex]14y - 2 = 40 > > 14y = 42 > > y = 3[/tex]
Answer:
y=3
Step-by-step explanation:
Remember PEMDAS
The area of a rectangular painting is 5734cm^2
If the length of the painting is 94cm , what is its width?
Answer: 61cm
Step-by-step explanation:
So to work out this question you do 5734÷94 which would work out the with which is 61
61×94=5734
Fahrenheit 451
Write a paragraph on the imagery' from this text with evidence, as well as a second paragraph for the mood.
Answer:
mark above answer BRILLIANT
PLZ HELP QUICK THANKS!
Answer:
L = [tex]5 \frac{1}{6} cm = \frac{31}{6} [/tex] cm
B = [tex]2 \frac{2}{7}cm = \frac{16}{7} [/tex]cm
Area = [tex] \frac{31}{6} cm \times \frac{16}{7}cm = \frac{496}{42}cm^{2} [/tex]
[tex]11 \frac{34}{42}cm^{2} [/tex]
[tex] = 11\frac{17}{21}cm^{2} [/tex]
please help ASAP!!!! will give brainiest!!!
Answer:49ft
Step-by-step explanation:
Solve:
7 - 3(-9x + 3) = 11
For anyone who had the similar question.
Whoever can help me 1st I will mark the brain liest
A is 163 and C is 143
Heeeeeeeeelp plssssssssssss
Answer:
A and E
Step-by-step explanation:
This is an example of the distributive property.
28n-25 is the base
E shows 7(4n-5)
7*4=28=28n
7*5=35
7(4n-5)=28n-35
All shirts are the same price. Which deal is cheaper per shirt?
A) Buy 2 shirts and get 25% off.
B) Buy 3 shirts and save 30%.
Answer:
The answer of this question is option A
Do #1 a-f please 15 points
Answer:
1a expression
1b equation
1c equation
1d expression
1e expression
1f equation
Step-by-step explanation:
Equations have an equals sign, while expressions do not.
1a expression
1b equation
1c equation
1d expression
1e expression
1f equation
Answer:
A Expression B Equation 2 1/4 C Equation 3 2/3 D Expression E Expression F Equation
Step-by-step explanation:
Pleaseeeeeeeeeeeeeeeee solve this
Answer:
x=25
Step-by-step explanation:
All angles in a triangle add up to 180°, so add all the angles together
(2x+15)+(x+10)+(3x+5)=6x+30
So that means... 6x+30=180°
Get rid of the 30, so... 180-30=150
6x=150°
Divide each by 6
6x/6=x
150/6=25
x=25
Sorry if that was hard to understand!!
Can someone answer this?
Answer:
y = 1500 + 800x
Step-by-step explanation:
This is the answer because Elisa charges 1500 dollars no matter what. That value is not dependant on anything. Every hour she is with the client is 800 dollars. That is why it is represented as 800x. X being the amount of hours. You add the two together to find how much Elisa's services cost.
Which of the following is both a perfect square and a perfect cube?
64
16
81
1,000
I know the answer is 64, but how? Can someone please explain me to me how to work this out?
PLZ ANSWER THIS QUICK! THANK U!!
NEED HELP PLEASE IM BEGGING YOU PLEASE!!!!!
NEED HELP WITH BOTH PLEASE
Answer:
14) F
15) D
Step-by-step explanation:
14
You have 80 minutes on a CD, minus the time you burned would equal the time you have left on the CD.
15
To find mark down, you multiply the percentage to the original price, and then subtract the answer to the original price.
Someone pls help me.
identity property in multiplication goes to the second option
commutative property goes to the first option
identity property in addition goes to the last option
associative property goes to the fourth option
distributive property goes to the third option
I may have gotten some wrong , if I did I am very sorry,if i didnt get any wrong, then I hoped this helped!
The heights of six students Aaron, Betty, Carrie, Dan, Evelyn and Frank are 58 inches, 60 inches, 63 inches, 64 inches, 68 inches and 69 inches. Carrie is 4 inches shorter than Aaron. The girls (Betty, Carrie and Evelyn) are the three shortest students. Dan is one inch shorter than Frank. Betty is the shortest student. What is the sum of Frank’s height and Evelyn’s height, in inches?
Answer: 132
Step-by-step explanation: I think it is 132 because C + 4 = A, D + 1 = F, and B is shortest. so the order is FDAECB with Frank at 69 and Evelyn at 63. Carrie has to be at 60 because Aaron, who is 64, is 4 inches taller than Carrie. So, when you add 69 and 63 together, you get 132. Also just to check, Dan, who is 68, is one inch shorter than Frank, who is the tallest. This is only true because the girls are the youngest.
Answer:
132
Step-by-step explanation:
I did it on a Mathcounts competition
A rhombus has 4 equal sides.
What is the order of rotational symmetry for a rhombus?
1
2
3
4
Answer:
B. 2
Step-by-step explanation:
Got Correct On MyPath.
The order of rotational symmetry for a rhombus is 2.
What is Polygon?A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end
A rhombus is a special case of a parallelogram, and it is a four-sided quadrilateral.
In a rhombus, opposite sides are parallel and the opposite angles are equal.
All the sides of a rhombus are equal in length, and the diagonals bisect each other at right angles
Rotational Symmetry of a Rhombus has four equal sides but of varying angles.
A rhombus has two lines of symmetry (vertical and horizontal), an order of two, and the angle of rotation of 180 degrees
Hence, the order of rotational symmetry for a rhombus is 2.
To learn more on Polygons click:
https://brainly.com/question/24464711
#SPJ2
help i need help with pre-algebra
The temperature at 8 p.m. was 6 degrees. at 2 p.m. the temperature decreased 13 degrees. What was the temperature at 2 a.m.?
Step-by-step explanation:
Given parameters:
Temperature at 8pm = 6°C
Temperature at 2am = decreased by 13°C
Unknown:
Temperature at 2am
Solution:
Since this is a temperature decrease problem, the temperature at 2am should be lesser.
Temperature at 2am = Temperature at 8pm - Temperature decrease
= 6°C - 13°C
= -7°C
HELP WILL MARK YOU BRAINLIEST NO GUESSES PLZ!!!!
I got 2 : 3. You didn’t give answer choices but after you commented the answer choices I was able to determine that 2:3 is the answer.