Answer:
integers are closed under division
Step-by-step explanation:
Integers are not closed under division.Let us consider two integers i and j.
Then need not necessarily be an integer. For example, 2 and 3 are integers but is not an integer. So the first option , namely, integers are closed under division is not true.
On the other hand, the remaining three options given are correct.
Tim’s weight was 320 pounds in 2010 and is 180 pounds in 2020. What is the slope?
Answer:
-14
Step-by-step explanation:
We have two points
(2010, 320) and ( 2020, 180)
The slope is
m= ( y2-y1)/(x2-x1)
= ( 180-320)/(2020-2010)
= -140/10
= -14 lbs/ year
Perform the indicated operation: (x3 – 3x + 1) – (x3 + 7 – 12x).
Answer:
[tex]\left( x^{3}-3x+1\right) -\left( x^{3}+7-12x\right)=9x - 6[/tex]
Step-by-step explanation:
[tex]\left( x^{3}-3x+1\right) -\left( x^{3}+7-12x\right) = x^{3}-3x+1-x^{3}-7+12x[/tex]
[tex]= -3x+1-7+12x[/tex]
[tex]=9x - 6[/tex]
Find the area of the right triangle
Answer:
Formula for area of a triangle;
A = BH x 1/2
B = The base
H = The height
1/2 = Half of the product of (base x height)
We first need to figure out the base of this triangle, so count the units across from the base of this triangle.
The base is 4 units.
Now we need to find out the height, so count the units above starting from the base of this triangle and to the end of this triangle.
The height is 7 units.
Now plug these values into our equation:-
A = BH x 1/2
A = 4(7) x 1/2
A = 28 x 1/2
A = 28/2
A = 14, the area of this right triangle is 14 square units.
Help pls! pls explain too
What is the area of this combined shape?
Answer:
the amount of space inside a shape composed of basic shapes put together.
Step-by-step explanation:
hope this helps.
f(x) = - 0.05(x ^ 2 - 26x - 120)
What do the zeros of this function represent? Remember the zeros are where f(x) =0.
We are given function for the path coming out of the cannon.
We also given x is the horizontal distance from the cannon.
We need to explain, what f(x) represents there.
f(x) represents y-axis.
And y-axis also represents height.
Height represents a vertical distance.
Therefore, we could say f(x) represents vertical distance (height) from the cannon for x horizontal distance from the cannon.
Simplify the expression with nested parentheses.
430+ 26+6−33
Answer:
using bodmas.
6-33=-27.
430+26=456.
456-27=429
i need help please !!
Answer:
D. d-0.29
Step-by-step explanation:
29÷(0.29)=100
29÷0.29=100
They both equal 100 meaning that D is the answer.
22 mice were introduced to a new environment. Their population triples every year. Using m(t) as the function name and t for time, write this equation.
Answer:
when were they introduced?
Step-by-step explanation:
please help find the area!
Ill mark brainliest!
A social security number contains nine digits, such as 224-10-7135. How many different social security numbers can be formed?
Answer:
420 million
Step-by-step explanation:
There are up to 420 million numbers that were assinged.
i need help 100 points for a question
Answer:
34.28 ftStep-by-step explanation:
Find the length of semicircle
C = πd, circumference of circleC/2 = πd/2 = 3.14*4/2 = 6.28 ftFind the perimeter
P = 4 + 6.28 + 2*12 = 34.28 ftFor rectangle
L=12B=4Perimeter:-
2(L+B)2(12+4)2(16)32ftFor semicircle:-
radius=r=4/2=2ftPerimeter:-
πr2π6.28ftTotal:-
6.28+32-438.28-434.28ftMAX POINTS Help please and thanks
What is the period and frequency of the function graphed and how would the equation be written?
Answer:
Frequency is total number of complete cycle, made in a unit time.
Period is the time taken to complete a cycle.
Step-by-step explanation:
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
The required equation is :
[tex]\qquad \bf \dashrightarrow \:y =a \cos(bx) + k[/tex]
Now, let's find the required values :
period (p) = 6[distance between any successive Crest or trough]
a = - 4 (flipped)b = 2π/p = 2π/6 = π/3k = -2Distance of starting position from origin = k
Now, plug in the values ~
[tex]\qquad \bf \dashrightarrow \: - 4 \cos( \frac{\pi}{3} x) - 2[/tex]
Question 7 (Essay Worth 5 points)
(7.03)
An equation is shown below:
6(2x - 11) + 15 = 21
Write the steps you will use to solve the equation and explain each step.
Answer:
x=6
Step-by-step explanation:
The first thing you should start with is distributing the 6 inside the parentheses, which would give us (12x - 66) + 15 = 21. Now we can add like terms on this side of the equation to get: 12x -51 = 21. Add the 51 to the right side to get 12x = 72, then divide both sides by 12 to get x = 72/12 or 6.
x=6
Hope this helps!
Marking this brainliest also helps me out too :)
I need the answer!! Please answer
Question 8
1 pts
What is the best way to describe the central tendency of residential real estate prices in Westwood?
Hint: Westwood real estate is highly skewed. You are able to find houses that are $600,000 to
$69,000,000 with an average price of $1,020,000.
O Median
O Mean
The best way to describe the central tendency of residential real estate prices in Westwood is mean.
What are measures of central tendency?
A measure of central tendency attempts to describe a data set by determining the central value of the data set. Measures of central tendency are mean, median and mode
Mean is the average of a set of numbers.
Mean = sum of the numbers / total number
To learn more about mean, please check: https://brainly.com/question/25842202
Kaitlynn needs 3 pounds of fruit for a salad.
She already has 34 pound of apples and 13 pound of grapes.
How many more pounds of fruit does she need to buy?
Answer:
She has 1 and 1/12 pounds of fruit already and she needs 1 and 11/12 pounds more to have 3 total pounds
How many solutions does the equation (20 - 12x) = 5 - 3x have?
Answer:
x=5/3
Step-by-step explanation:
there is only 1
4. The fourth proportional of 7,3 and 98 is:
A.
040
B.
042
Answer:
If
a
b
=
c
d
=
e
f
then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
1. If
a
b
=
c
d
=
e
f
, then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
2. If
x
b2-c2
=
y
c2-a2
=
z
a2-b2
, then prove that x+y+
Step-by-step explanation:
The required proportional of 7, 3, and 98 is 42. Option B is correct.
Given that,
The fourth proportional of 7,3 and 98 is to be determined.
Proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense that are they directly proportional or inversely proportional to each other.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
Here,
let the required proportional be x,
now,
7 / 3 = 98 /x
x = 98 * 3 / 7
x = 42
Thus, the required proportional of 7, 3, and 98 is 42. Option B is correct.
Learn more about proportionality here: https://brainly.com/question/22620356
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At andres birthday party 3 pizzas were ordered for lunch. Each pizza was divided into 8 equal slices. Each child ate 2 pieces and there were 2 pieces left how many children were at the party?
Answer: I dont know if im right for sure but the answer should be 4
Step-by-step explanation
8 goes into 2 4 times (8 divided by 2 = 4)
Each child ate 2 pieces (4-2=2)
so therefore for it to be 2 pieces left over there were 4 kids I think.
Answer:
11
Step-by-step explanation:
So each pizza has 8 equal slices but we don't know the amount pizzas but we can find it by doing this ⬇️
1 pizza= 8 slices
3 pizzas = x
you cross multiply it and it will end up as 3×8= 24 slices.
now each kid ate 2 pieces and there was a leftover of 2
therefore, 24-2= 22 pieces divided 2 is 11
or; 3×8=24-2=22÷2=11
Jon mixed 3 cups of pineapple juice with 5 cups of
mango juice to make fruit punch.
Complete the equation below to represent the
relationship between the number of cups of
pineapple juice, p, and the number of cups of mango
juice, m.
p=
Answer:
p = 5/3m
Step-by-step explanation:
The Ratio of Pineapple juice to mango juice is 3:5. Since you can substitute the variable in, and they have already supplied part of the equation, you can set this equation up:
3p = 5m
divide both sides by 4
p = 5/3m
This tells us that for every cup of Pineapple juice, there is 5/3 cup of mango juice.
Hope this helps!
Brainiest always helps me out :)
Rewrite each equation without absolute value for the given conditions
y=|x-5|+|x+5| if x>5
y=|x-5|+|x+5| if x<-5
y=|x-5|+|x+5| if -5
Step-by-step explanation:
Condition 1x > 5, both terms are positive
y = x - 5 + x + 5 = 2xCondition 2x < - 5, both terms are negative
y = - (x - 5) - (x + 5) = - x + 5 - x - 5 = - 2xCondition 3This is not clear
If x>5
Terms are positiveHence..
y=x-5+x+5=2xIf x<-5 terms are negative
y=-x+5-x-5=-2xIf x=-5
y=|-5-5|+|-5+5|y=|-10|y=10Steven is 42 inches tall. On average he grows at a rate of 5.5% each year. How tall will
Steven be in 3 years?
Answer:
about 49.3 inches
Step-by-step explanation:
[tex]42 \times {1.055}^{3} = 49.318[/tex]
pa help guys,
probability distribution
Answer:
14
Step-by-step explanation:
Hope it helps
36
36
is what percent less than 60
60
?
Answer:
thats only the answer <3
I NEED HELP ON THIS QUESTION (I will give a Brainlist to the best one no links please.)
Answer:
1. 84.7
2. 24
3. 47.5
4. 57.5
Step-by-step explanation:
your welcome and mark as brainliest pls
PLS HELP MARK AS BRAINLIEST
Suppose that the relation S is defined as follows.
S= {(4, p), (p, 0), (3, 3), (7, m)}
Give the domain and range of S.
Write your answers using set notation.
Answer:
Domain= {4,p,3,7}
Range= {p,0,3,m}
Step-by-step explanation:
⇒Domain: is the set of the first number in every pair.
⇒Range: is the set of the second number in every pair
TO FIND THE DOMAIN: S= {(4,p),(p,0),(3,3),(7,m)}
so Domain= {4,p,3,7}
TO FIND THE RANGE: S= {(4,p),(p,0),(3,3),(7,m)}
so Range= {p,0,3,m}
Hope this helps :)
Men's Shoe Sizes The shoe sizes of eight different men were used to create the box plot above. Which of the sets of measurements below matches the given box plot? A. Shoe Size: 7, 8, 8, 9, 10, 11, 11, 12 B. Shoe Size: 7, 9, 9, 9, 10, 11, 11, 12 C. Shoe Size: 7, 8, 8, 8, 8, 11, 11, 12 D. Shoe Size: 7, 8, 8, 9, 10, 10, 10, 12
Answer:
The answer is
→ A. Shoe Size: 7, 8, 8, 9, 10, 11, 11, 12
Step-by-step explanation:
Hope this helped! :^)
⭐Brainliest will be appreciated!⭐
✉️Message me if you have any more questions!✉️
- ✨7272033Alt✨
Submitted on 4/16/2022 at 5:38 PM
(To avoid plagarism, by users whom decide to copy.)
(a) The area of a rectangular parking lot is 3657 m².
If the width of the parking lot is 53 m, what is its length?
Answer:
69 m
Step-by-step explanation:
[tex]\textcolor{steelblue}{\text{Area of rectangle= length ×width}}[/tex]
Given that the area is 3657 m² and the width is 53 m,
3657= length ×53
Divide both sides by 53:
length= 3657 ÷53
length= 69 m
Can you solve for x please? this one has me by the balls.
Answer:
42.5
Step-by-step explanation:
(180-95)÷2=42.5