Answer:
+ 1) is an even number.
Take any n ∈ N, then n is either even or odd.
• Suppose n is even ⇒ n = 2m for some m ⇒ n(n + 1) = 2m(n + 1) ⇒ n(n + 1) is even.
• Suppose n is odd ⇒ n+ 1 is even ⇒ n+ 1 = 2m for some m ⇒ n(n+ 1) = 2nm ⇒ n(n+ 1)
is even. QED
2. The sum of the first n natural num
Step-by-step explanation:
a>50A is greater than 50
a<50a<50
a≥50A is greater than or equal to 50
a≤50
Answer:
A. a > 50Step-by-step explanation:
If a is the number of acres, and the farmer is going to plant more than 50 acres, then the correct inequality is:
a > 50can someone please double check this for me?
Answer:
False
True
False
True
Step-by-step explanation:
The 4th option should be correct because the y-intercept on A is greater than the one in B,
A: y = -1/3x + 0 (usually when the y-intercept ain't appearing it means it's 0).
B: y = -1/3 - 2
As we know 0 is greater than -2 because it's closer to being a positive number, so 0 is not positive or negative; 0 is greater than any negative number but smaller than any positive numer so,
0 > -2.
Therefore the last option is true.
Which of these functions is not a línear function?
$20 is what percent of $40?
Please help ples
Answer:
50%
Step-by-step explanation:
50%
$20=50%
$20 x 2= $40
(a+b) raise the power of half
The equation of the function is Y=4x+5.Find the value of y when
x=3
x=-2
The equation of the function is y = 4x + 5. Find the value of y when
x = 3
x = -2
Answer:-Given:-y = 4x + 5 [Equation]
To Find:-The value of y when x = 3 , x = -2
Solution:-y = 4x + 5 [Given equation]
[tex] \therefore [/tex] When x = 3 ,
y = 4 × 3 + 5 [Value of x is 3]
y = 12 + 5
y = 17 [Answer]Again, when x = -2 ,
y = 4 × (-2) + 5 [Value of x is -2]
y = -8 + 5
y = -3 [Answer]What is the correct factorization of
6x2 + 24x?
Hurry
Answer:
6x^2*(x+4)
Step-by-step explanation:
hope this helps! :)
You pick a card at random. 6 7 8 9 What is P(not 9)? Write your answer as a percentage. %
Answer:
75%
Step-by-step explanation:
You pick a card at random. 6 7 8 9 What is P(not 9)? Write your answer as a percentage. %
Given the following
Total cards = 4 (6,7,8,9)
If the card is not 9, the required card will be (6,7,8)
Number of cards that are not 9 is 3
Probability = expected/total
Pr(not 9) = 3/4
express as percent
Pr(not 9) = 3/4×100
Pr(not 9) = 75%
Answer:
50%
Step-by-step explanation:
There are 4 cards, numbered 6, 7, 8, and 9. The numbers greater than 7 are 8 and 9. There are 2 numbers greater than 7.
P(greater than 7) =
2
4
Write your answer as a decimal. Then convert your answer to a percentage.
2
4
= 0.5 = 50%
P(greater than 7) = 50%
PLEASE HELP -2/3 divided by (-2/9)= A.-3/1 B.-1/3 C.1/3 D.3/1
The answer to your question would be D. 3/1
Marisol rents a bike in a city she is visiting. If
she pays $10.50 to rent the bike for 14 minutes,
what is the average price per minute?
Answer:
$10.50 ×14 = 150
Step-by-step explanation:
espero que te sirve
$0.75 is the average price per minute.
What is division?Division is the process of splitting a number or an amount into equal parts.
Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
she pays $10.50 to rent the bike for 14 minutes,
i.e. the average price per minute is,
$10.50 /14
=$0.75
Hence, $0.75 is the average price per minute.
To learn more on division click:
brainly.com/question/21416852
#SPJ2
PLEASE HELP ME!!! ITS DUE TONIGHT!!!
A number cube labeled 1 through 6 is rolled once in the spinner shown is spun once. The spinner has four equal sized sections. This experiment is repeated 60 times. The relative frequency for getting a sum of five was 1/5. What is the difference between the number of expected outcomes in the number of actual outcomes?
Answer:
2
Step-by-step explanation:
I did it on Mc Graw Hill
Difference between number of expected outcomes and number of actual outcomes is; 2
What is the number of outcomes?
From the question, we are told that the number cube is labelled from 1 to 6.
This means that there are supposed to be 6 expected outcomes.
However, from the spinner, we see only 4 numbers which are 1, 2, 3 and 4. This means the number of actual outcomes will only be 4.
Thus;
Difference between expected outcome and actual outcome = 6 - 4 = 2
Read more on expected outcomes at; https://brainly.com/question/24855677
how do i turn all of these into equivalent fractions?
Step-by-step explanation:
if it helps don't forget to like and Mark me
Find 2 and 3 please explain how u got ur answer
A manager at a factory finds that in a random sample of 250 watches, 3 are defective. Of the 7,500 watches from which the sample was chosen, about how many watches are not defective?
Answer: 7410 watches
Step-by-step explanation:
From the random sample of 250 watches, 3 are defective. The percentage that's defective will be:
= 3/250 × 100
= 1.2%
Percentage that's not defective = 100 - 1.2 = 98.8%
Therefore, from the sample of 7500 watches, the number that's not defective will be:
= 98.8% of 7500
= 98.8/100 × 7500
= 7410
Therefore, 7410 watches aren't defective
Similar triangles have the same shape but a different what
how many is 20 times 20
Answer:
400
Step-by-step explanation:
Answer:
400
Step-by-step explanation:
20 x 20
2 x 2
4
than add in the two zeros
400
Hope this helped :)
please help me on this question it is in the photo file
Answer:
390%
Step-by-step explanation:
We are given the mixed fraction:
3 9/10
Convert to improper fraction
39/10
Converting this to Percentage :
39/10 × 100
= 3900/10
= 390%
Therefore: 3 9/10 as a percentage = 390%
Create a factorable polynomial with a GCF of 6. Rewrite that polynomial in two other equivalent forms. Explain how each form was created. (10 points)
Answer:
Here is the answer
Step-by-step explanation:
On paper
Find the area of the parallelogram.
22 cm
17 cm
25 cm
cm?
(Simplify your answer.)
Answer:
b=base of parallelogram
h=height of parallelogram
area of parallelogram=b×h
=25×17
=425cm square
Choose the smallest fraction
1/13
1/11
1/12
Answer:
1/13 is the smallest fraction
Step-by-step explanation:
1/13 = 0.0769
1/11 = 0.0909
1/12 = 0.0833
1/13 is the smallest fraction
A dog walking company charges $90 to walk 6 dogs. They charge the same amount of money to walk each dog. Which table represents the relationship between the number of dogs the company walks and the amount of money they charge?
Answer:
15
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
i did k12
Barkley's team won 40% of their games last season. If they won 12 games total last season, how many games did they play?
Answer:
30 games
Step-by-step explanation:
if they won 12 games which is 40% of their total games played 100% is the number of games played .form an equation...
if 12=40
x=100 cross multiply 12 and 100 then divide by 40 to get x
12×100=1200÷40=30.
factor this equation 75k^2+30k=-3
[tex]5^{-2}[/tex] × [tex]\sqrt[3]{8}[/tex]
Give your answer in decimal
Answer:
0.08
Step-by-step explanation:
∛8 = 2 as 2*2*2 = 8
[tex]5^{-2}[/tex] = [tex]\frac{1}{5^{2} }[/tex] = [tex]\frac{1}{25}[/tex]
[tex]\frac{1}{25}[/tex] * 2 = [tex]\frac{2}{25}[/tex] = 0.08
23.
Maria has a rectangular cookie sheet that measures 10 in. by 14 in. What is the approximate
length of the diagonal of the cookie sheet?
A.
B.
17 in.
4 in.
C.
D.
296 in.
24 in.
plz help with the problem
add it and you will get 24 so pick D
A faraway planet is populated by creatures called Jolos. All Jolos are either
green or purple and either one headed or two-
headed.
Balan, who lives on this planet, does a survey and finds that her colony of 725
contains 145 green, one-headed Jolos; 240 purple, two-headed Jolos; and
350 one-headed Jolos.
One-headed Two-headed Total
Green
145
Purple
240
Total
350
725
How many green Jolos are there in Balan's colony?
Answer:
Its 280
Step-by-step explanation:
I got it right on A P E X
There are approximately 25,000 polar bears worldwide. Some scientists estimate that the polar bear population has been declining at a yearly reduction rate of 1%. What equation would model this situation?
A - p (t) = 25,000 (1.99)^t
B - p (t) = 25,000 (.099)^t
C - p (t) = 25,000 (0.99)^t
D - p (t) = 25,000 (0.01)^t
Answer:
i think d
Step-by-step explanation:
In the figure below, lines m and n are Parallel:
In the diagram shown <7 measure 105 degrees. What is the measure of <8? They are supplementary
8 degrees
75 degrees
92 degrees
180 degrees
Answer:
75 degrees.
Step-by-step explanation:
m < 8 = 180 - m <7
= 180 - 105
= 75 degrees.
The label for a square box of pasta has an area of 16 in? What is the side length of the box?
Answer:
4.
Step-by-step explanation:
A square has four sides of equal length.
And, the formula for area of a square is a^2.
And, 4^2 or 4⋅4 = 16.
Therefore, the side length of the box is 4.
In ΔDEF, the measure of ∠F=90°, the measure of ∠D=70°, and EF = 4.4 feet. Find the length of FD to the nearest tenth of a foot.
Answer:
FD= 1.6 ftStep-by-step explanation:
Seems like an easy trig question so let's get to it.
1) Draw the right triangle to make it easier to solve (right triangle because we have a 90 degree angle)
2) Find the last angle measure by adding 90+70= 160 and 180-160= 20 so the last angle measure is 20.
3) Use trig function, tan20= x/4.4 to find the answer of x (FD) to be 1.6. Therefore, the FD value will be 1.6 ft.
In the diagram below of triangle GHJ, K is a midpoint of GH and L
is a midpoint of HJ. If K L = 7x – 55, and GJ = 40 – X, what is
the measure of GJ?
H
K
L
G
J
