Which shows the best use of the associative and commutative properties to
make simplifying 2.4 + 13 – 5 + 3.6 +7 easier?
O A. (2.4 + 13) + (-5 +3.6 + 7)
O B. (2.4 + (-5) + 13) + (7 + 3.6)
O C. (7+ 2.4 + 13) + [3.6+ (-5)]
O D. (2.4+ 3.6) + [13 +7+(-5)]
Answer:
D
Step-by-step explanation:
So the associative and commutative properties basically say That you can change the orders of the numbers and the answer won't change (for multiplication and addition).
Your answer would be D because they added the numbers with a decimal place together, it makes it easier to look at, and add in your head.
HELP ASAP (20 POINTS)
The function f is modeled by the equation f(x) = 5x + 4 What is the range of the function when the domain is {-2,3,5}? A. {19,-6,29}
B.{-6,16,29}
C.{-6,19,29}
D.{14,16,24}
The range of the function will be;
⇒ { - 6, 19, 29 }
What is Domain?The set of all inputs of the function is called Domain of set.
Given that;
The function is,
⇒ f (x) = 5x + 4
And, The domain = {-2, 3, 5}
Now,
Since, The function is,
⇒ f (x) = 5x + 4
We know that;
The range of the function gives the value of f (x).
So, We get;
The function is,
⇒ f (x) = 5x + 4
Put x = - 2;
⇒ f (-2) = 5 × - 2 + 4
= -10 + 4
= - 6
Put x = 3;
⇒ f (3) = 5 × 3 + 4
= 15 + 4
= 19
Put x = 5;
⇒ f (5) = 5 × 5 + 4
= 25 + 4
= 29
Thus, The value of range = { - 6, 19, 29 }
Learn more about the domain visit:
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The rain gauge shows 3 centimeters of rainwater.
Which of the equations below gives the height, h, if it rains at a rate of 0.25 centimeters per hour after t hours? Hint: the h is the "y" and the t is replacing "x"
A. h=0.25t+3h is equal to 0 point 2 5 t plus 3
B. h=3t+0.25h is equal to 3 t plus 0 point 2 5
C. t=0.25h+3t is equal to 0 point 2 5 h plus 3
D. t=3h+0.25
Answer:
h=0.25t+3
Step-by-step explanation:
y=mx+b
y=0.25x+3
replace y with h and x with t
h=0.25t+3
What is the exact value of the cotangent of 240 degrees?
Answer:
0.57735026919
Which polynomial is factored completely?
Completely factored:
(4x+4)(x+1) and 2x(x²-4)
Step-by-step explanation:
We have to check each option one by one, It is sum of two perfect square, As we know sum of two perfect square can't be factored. It is prime equation.
Here we have two factor (4x+4) and (x+1). In both factor degree of x is 1. It is complete factor form. Here we have two factor 4x and x²-4. For second factor it is further factor. Because it is difference of square. Factor of x²-4 = (x+2)(x-2)
Complete Factor: 2x(x+2)(x-2)[/tex],
Here variable are not same. So, it can't be factor (false)
15 m
8 m
What is the length of the hypotenuse?
C=
meters
Pythagorean Theorem: a^2 + b^2 = c^2
A and B are the sides given to us, because they're not the hypotenuse. Square each at add them.
That leaves you with 289. Square root it, because we want to find C without being squared.
The square root of 289 is 17, so the hypotenuse is 17 m in length
On Friday night, Leah ate a pizza for dinner and had 1/3 of the pizza left over. On Saturday,
she ate 1/10 of what was left. How much of the pizza did Leah eat on Saturday?
Answer:
7/30.. hope this helps..
marine deposits $1500 in a savings account. the bank will pay her 4.5% interest at the end of the year how much interest will marina reactive?
Answer:
67.50
Step-by-step explanation:
i used a calculator to do 1500 ×4.5%
Answer:
you would multiply 1500 × 4.5%= 65.5
Harley had $500 is his account at the beginning of the year. He spends $20 each week on food, clothing, and movie tickets. He wants to have more than $100 at the end of the summer to make sure he has enough money to purchase some new shoes before school starts. How many weeks, w, can Harley withdraw money from his savings account and still have more than $100 to buy the new shoes at the end of the summer?
Answer:
19 weeks
Step-by-step explanation:
Harley has an initial amount in his account = $500
He spends the amount each week = $20
He wants to have more than $100 in his account at the end of summer to purchase some new shoes.
We assume that he can withdraw the money from his account for 'w' weeks,
Inequality representing this situation will be,
(500 - 20w) > 100
Further solving this inequality,
-20w > 100 - 500
-20w > -400
w < 20
Therefore, Harley can withdraw the money for less than 20 weeks or 19 weeks.
Three more than seven times a number d is equal to fifty nine. What is the value of d?
Answer:
d = 8
Step-by-step explanation
Work Backwards:
59 - 3 = 56
56/7 = 8
Therefore d = 8
Answer:
Three more than seven times a number d is equal to fifty nine
According to the problem
[tex]7d + 3 = 59 \\ 7d = 59 - 3 \\ 7d = 56 \\ d = \frac{56}{7} \\ \boxed{d = 8}[/tex]
Value of d is 8.What weight of flour will each family get if 12 families share 3/4 of flour equally
Answer:
1/16
Step-by-step explanation:
3/4 divide by 12=1/16
-56 - -8
(a) -64
(b) -48
(c) 49
Select the correct answer !!!!!!!!!!HELP OVER HERE!!!!!!!!!!!!
Answer:
-48
Step-by-step explanation:
-56 - -8
Subtracting a negative is like adding a positive
-56 +8
The signs are different so we subtract the two numbers and take the sign of the larger
56 -8 = 48
The larger number has a negative sign so the answer is negative
-48
(6)(-7)
Can u help me with this question I don’t get it.
Answer:
i believe its -42
Step-by-step explanation:
6 × -7 u would multiply because when ever it shows u something like that u would multiply but if it shows + - then u add or subtract but we will multiply i hope u get it right :)
23
Knee socks are 2 pair for $3.18, and anklets are 3 pair for $4.47. Which of the following
is true?
Answer:
2 pair=3.18×2=6.36
3pair anklets=3×4.47=13.47
total=19.77
6.36+13.41
19.77
Two swimming teams are competing in a 400 meter medley relay. During the last leg of the race,
the swimmer in lane 1 has a 1.7 second head start on the swimmer in lane 2. The swimmer in
lane 1 is swimming at 1.9 m/sec. The swimmer in lane 2 is swimming at 2.3 m/sec.
Lett be the time since the swimmer in lane 2 started the last leg. After how many seconds into
the leg will the swimmer in lane 2 catch up with the swimmer in lane 1?
Answer:
4 seconds
Step-by-step explanation:
I completed a table, swimmer 1 started with 1.7 while swimmer 2 started with 0. After adding 1.9 to swimmer 1 each time and 2.3 for swimmer 2, swimmer 2 caught up at 4 seconds
f(x) = -402 + 4x – 4
Find f(3)
What do you add to
5 3/7 to make 8?
Answer:
2 4/7
Step-by-step explanation:
3/7+4/7= 7/7 or 1 whole
So you add that to the 5 and get 6, then you need 2 to get to 8 because 6+2=8
Hope this helped!!!
Answer:
2 4/7
Step-by-step explanation:
let n = number to add to 5 3/7
change 5 3/7 to improper fraction: 38
7
change 8 to become 56
7
create equation:
38 + n = 56
7 7
n = 56 - 38
7 7
n = 18 or 2 4/7
7
check: 5 3 + 2 4 = 8
7 7
5 + 2 = 7 and 3/7 + 4/7 = 1
7 + 1 = 8
What number is 0.409 more than 0.733? HELP
Answer:
= 1.223
Step-by-step explanation:
0.409 more than 0.733 means the addition of 0.733 + 0.409
0.733 + 0.409
= 1.223
Approximately to one decimal place = 1.2
Peter wants to make for necklaces that are the same way. He asked his friends to cut the string for the necklace is 15 paper clips long. With all the links me the same explain your think
Correct question is;
Peter wants to make four necklaces that are the same way. He asked his friends to cut the string for the necklace 15 paper clips long. Would all the lengths be the same? Explain your think
Answer:
No, the lengths would not be the same. This is due to the fact the the paper clips could be in different sizes.
Step-by-step explanation:
We are told that he wants to make four necklaces that are the same way and that he told his friends to cut the string for the necklace 15 paper clips long.
Now, we are not told the sizes of the paper clips and we know that paper clips come in different sizes. Thus the paper clips in which the strings are cut could be in different sizes. Therefore, the lengths wouldn't be the same due to that.
A practice field is 250 feet long.The game field is 40% longer than the practice field.How long is the game field?
Answer:
The game field is 350 40 percent for 250 is 100 and 250 plus 100 is 350.
Brainly or thank me (in addition if there is other answers)
I need help someone PLZZZ HELP ME
Answer:iiikkkkkkkhuf76v76r 7
Step-by-step explanation:12345678910
Can someone help me with this ASAP 25 points
Answer:
180(as straight line)-125=55
so SQR or x is 55 degrees
Answer:
x = 55°Step-by-step explanation:
Straight angle equals 180°
PQR = 180°
PQR = PQS + SQR angle addition postulate
180° = 125° + xx = 180° - 125°x = 55°Becky and Meredith are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of shiny wrapping paper.
Becky sold 7 rolls of plain wrapping paper and 1 roll of shiny wrapping paper for a total of $39. Meredith sold 7 rolls of plain wrapping paper and 4 rolls of shiny wrapping paper for a total of $72.
What is the cost each of one roll of plain wrapping paper and one roll of shiny wrapping paper?
Answer:
111
Step-by-step explanation:
72+39+1=111
Your weekly base salary is $150. You earn $20 for each phone you taht you sell. The company policy is that as a part-time employee , the maximum you can earn each week is $950
Write and solve an inequality that represents the number of cell phones you can sell each week.
Answer:
You can sell at least 40 phones each week.
Step-by-step explanation:
Given that:
Weekly base salary = $150
Earning on each phone = $20
Maximum amount that can be earned each week = $950
Let,
m be the number of phones.
20m + 150 ≤ 950
20m ≤ 950 - 150
20m ≤ 800
Dividing both sides by 20
[tex]\frac{20m}{20}\leq \frac{800}{20}[/tex]
m ≤ 40
Hence,
You can sell at least 40 phones each week.
Which of the following is the missing value?
O 0.1
The relative frequency table below displays the
proportion of residents in an apartment complex
who prefer certain social media sites.
Upstart Aster Babble Techy
0.10
0.25
0.35
22
0.2
0.3
00.35
Answer:
C
Step-by-step explanation:
What is the common ratio for this geometric sequence?
64, 16,4,1,...
A. 8 B. 1/8 C. 4 D. 1/4
A plumber charges $55 for a service call plus $35 per hour. If the plumber’s bill was $160, how many hours was he there?
using the elimination method how do I find x and y for the following problem:
3x+5y=-1
x + 5y = 4
Answer:
x is equal to -3, and y is equal to eight fifths, or 1.6
Step-by-step explanation:
Solving by elimination means to add or subtract one of the equations from the other, eliminating one of their common terms.
Because both of the provided ones have the term 5y (and no other y terms), let's use subtraction:
3x + 5y = -1
- ( x + 5y = 5 )
2x + 0 = -6
Which we can solve pretty quick:
2x = -6
x = -3
We can now solve either of the original equations for y:
x + 5y = 5
-3 + 5y = 5
5y = 8
y = 8/5, or 1.6
To make sure we're correct, let's test our results in the other equation:
3x + 5y = -1
3 × -3 + 5 × 8/5 = -1
-9 + 8 = -1
-1 = -1
So we're good!
[tex]21x^2-25x-4=0[/tex]
Answer:
That's unreadable. Could you send a photo instead?
Step-by-step explanation:
PLEASE HELP MEeEeEe
10POINTS!
Answer:
Step-by-step explanation:
-4/10+(-7/10)=-1 1/10
