23
Step-by-step explanation:
2 - [ -1]³ + [ 1 6 ] - [ - 1 - [ - 3 ]
= 2-[-1] + [16] -[-1]-[-3]
= 2+1+16+1+3
= 3+16+4
=3+20
= 23
Lawrence spent $1.89 on a bottle of paint and $0.45 on a brush. What was the total amount he spent? Use the model to help you.
Find the area of a rectangular ground which is 14 1/2 m long and 10 2/3 m wide.
Answer:
154 2/3 m²
Step-by-step explanation:
14 1/2 x 10 2/3
First, make the mixed numbers into improper fractions:
29/2 x 32/3
Simlify by cross cancelling if you can:
29/1 x 16/3
Then, multiply:
29/1 x 16/3 = 29 x 16/1 x 3 = 464/3
Finally, turn the new improper fraction into a simplified mixed number:
464/3 = 154 2/3
The area is 154 2/3 m²
Please help!! Due tm! NO LINK
Ans4
Step-by-step explanation:
Step-by-step explanation:
25 . f (-6) = 7
26 . f (0) = -2
27 . x = 2
28 . x = -4
Use 1/2 of preparation now. In 24 hours use the remaining amount of preparation there is 8 ounces of preparation in the bottle. How much will you use for each use?
A dance academy charges $24 per class and a one time registration fee of $15. A student paid a total of $687 to the academy. Find the number of classes the student took.
Answer:
The student took 28 classes
Step-by-step explanation:
What I did was minus $15 from the $687 total, cause $15 is only a one time registration fee, then 687-15=672, so then I divided 672 by the cost per class, so $24, 672 divided by 24 equals to 28, so the student took 28 classes.
Find the volume of a rectangular prism that is 10 cm long, 3 cm wide, and 2 cm high. Please draw and label the prism
Answer:
Volume = Length × Width × Height
Volume = 10 × 3 × 2
Volume = 60 cm
find the value of a if the line joining the points (3a,4) and (a,-3) has a gradient of 1
Recall that the slope or gradient of a line segment through two points is the ratio of the change in the y coordinate to the change in the x coordinate.
If the gradient is 1, then
1 = (-3 - 4) / (a - 3a)
Solve for a :
1 = -7 / (-2a)
1 = 7/(2a)
2a = 7
a = 7/2
Jane is solving the equasion -2x + 4 = 18. She tells her partner that they should add two to both sides first since that is the inverse of -2. Did Jane start this equation correctly? Explain your reasoning
Answer:
No
Step-by-step explanation:
Given
- 2x + 4 = 18
note the inverse of - 2 is - [tex]\frac{1}{2}[/tex] not - 2
However , the first step is to isolate the term in x by subtracting 4 from both sides.
- 2x = 18 - 4 = 14 ( divide both sides by - 2 )
x = - 7
Find the perimeter. Simplify your answer.
60'
90-8
4c+6
c-7
6c + (c - 7) + (9c - 8) + (4c + 6) =
= 6c + c - 7 + 9c - 8 + 4c + 6 =
= 6c + c + 9c + 4c - 7 - 8 + 6 = 20c - 9
The actual distance between A and B is 960 metres.
a) Work out the scale on the map. Give your answer in the form 1:n
b) Work out the actual distance between A and C in kilometres. Your final line must say, AC = ... km
Answer:
Step-by-step explanation:
a. 960 / 4 = 240 for 1 grid
1/2 cm = 24000
1 : 48000
b. A to C
AC² = 3² + 6²
AC² = 9 + 36
AC²= 432 + 1728
AC² = 2160
AC = √2160 km
what is the sum of (3x^2y+4xy^2-2y^3+3) and (x^2y+2y^3-4)
Answer:
This is the sum ---> 4x^2y + 4xy^2 - 1
Step-by-step explanation:
(3x^2y+4xy^2-2y^3+3) + (x^2y+2y^3-4)
(remove the parenthesis)
= 3x^2y + 4xy^2 - 2y^3 + 3 + x^2y + 2y^3 - 4
(now, group the like terms)
= -2y^3 + 2y^3 + 4xy^2 + 3x^2y + x^2y + 3 - 4
(add the elements you think are alike or similar)
= -2y^3 + 2y^3 + 4xy^2 + 4x^2y + 3 - 4
= 4xy^2 + 4x^2y + 3 - 4
= 4xy^2 + 4x^2y - 1
Answer:
the sum is 4x^2y + 4xy^2 - 1
Solve : x/3-2/5 = 2x/15-3/5
Step-by-step explanation:
x/3-2/5=2x/15-3x
5x-6=2x-9
5x-2x=-9+6
3x=-3
3x/3=-3/3
x=-1
Is -10/3 greater or less that the square root of -9
Step-by-step explanation:
The square root of -9 is greater than that
What percentage of households in the survey have four or more televisions?
Answer:
2.5% ?
Step-by-step explanation:
.025 as percentage is 2.5%
Help what is the slope of the line?
9514 1404 393
Answer:
8/5 = 1.6
Step-by-step explanation:
It looks like the line crosses grid points (-4, -4) and (1, 4). This means the slope is ...
m = (y2 -y1)/(x2 -x1)
m = (4 -(-4))/(1 -(-4)) = 8/5 = 1.6
The slope of the line seems to be about 8/5, or 1.6.
i don’t understand at all
Answer:
26
Step-by-step explanation:
It says find f(f(2)), so we need to find f(2) and then input that into the same function. f(2)=5 so then we input that into the function again and get 26. Boom.
Answer:
26
Step-by-step explanation:
Ok first u find f(2) so for that u have to input 2 into the value of x. So 2^2 +1 =5
When we get 5 we input THAT into f(x)
So:
F(5) = 5^2 +1
=26
5.346 - 2.289 = ?
SHOW WORK
WILL GIVE BRAINLIEST PLEASE
Answer:
7.635
Step-by-step explanation:
1 1
|5| . |3| |4| |6|
+ |2| . |2| |8| |9|
--------------------------------------------------------
|7| . |6| |3|
noboboboobobovobobnaoakspapsls
2x^2(6x^3-3x+1) need help
Answer:
12x^5-6x^3+2x^2
Step-by-step explanation:
Please help!!!!!!!!!!!!!!
Step-by-step explanation:
[tex] {40}^{ \frac{1}{2} } and \: 2 \sqrt{10} [/tex]
From 1985 through 1995, the yearly gross farrm revenue (in millions) in the United States can be modeled by the function R(t)=-t^2+7t+159 and the yearly farm cost (in millions) in the United States can be modeled by the function c(t)=t^2+131 where t is the number of years since 1985. Write a new function, P(t), that models the yearly profit after 1985
The profit function is simply the difference between the revenue function and the cost function. The profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]
Given that:
[tex]R(t) = t^2 + 7t + 159[/tex]
[tex]c(t) = t^2 + 131[/tex]
The profit function P(t) is calculated as follows:
[tex]P(t) = R(t) - c(t)[/tex]
So, we have:
[tex]P(t) = t^2 + 7t + 159 - (t^2 + 131)[/tex]
Open brackets
[tex]P(t) = t^2 + 7t + 159 - t^2 - 131[/tex]
Collect like terms
[tex]P(t) = t^2- t^2 + 7t + 159 - 131[/tex]
[tex]P(t) = 7t + 28[/tex]
Hence, the profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]
Read more about profit functions at:
https://brainly.com/question/11334756
During a 12-hour period, the
temperature dropped 48º.
How many degrees did the
temperature drop each hour?
Answer:
4 degrees every hour
Step-by-step explanation:
Since it was 48 degrees over a total of 12 hours we can do:
48 / 12 = 4 degrees.
It may be presented as -4 degrees since it is dropping in tempature therefore making it negative.
-7x-3x+2=-8x-8 solve the equation for the variable show work
Answer:
sorry man
Step-by-step explanation:
iguess dhejwjsjsj
What is the inverse of multiplication?
(A) subtraction
(B) division
(C) addition
(D) multiplication
Answer:
b
Step-by-step explanation:
Answer:
b) division.
Hope it helps you....There are 60,659 people under the age of 14 years old
There are 215,927 people age between 15 and 64 years old
There are 36,610 people over the age of 65 years old
What is the Old Age Dependency Ratio as a decimal rounded to
the Thousandths place?
Answer:
(2,800/1,500) * 100 = 187%
Step-by-step explanation:
What is the height of a triangle with an area of 32 cm2
and a base of 8 cm?
Answer:
8 32 A for area and H for height
Step-by-step explanation:
please help!!!!!
what is -x+2x???
Which classification correctly describes the following number?
( /6 x /2)
a.
Irrational
Number
b.
Rational
Number
Answer:
a
Step-by-step explanation:
a rational number is a whole number
What is the range of the function on the graph
all real numbers
all real numbers less than or equal to 1
all real numbers less than or equal to 3
all real numbers less than or equal to 0
Marks and con
Save and Exit
Det
Submit
Answer:
where is the graph
Step-by-step explanation:
A student council group is preparing flower arrangements for a nursing home. There are 162 roses, 108 dahlias, and 180
tulips to be used in the arrangements. The arrangements are identical and there are no leftover flowers.
How many roses, tulips, and dahlias are in each arrangement?
Answer:
Step-by-step explanation:
since GCF(162,108,180)=18
and you have not mentionned it was the maximum of arrangements you want:
[tex]\begin{array}{c|c|c|c}\#arrangement&\#Roses&\#Dahlias&\#Tulips\\-------&-------&-------&-------\\1&162&108&180\\2&81&54&90\\3&54&36&60\\6&27&18&30\\9&18&12&30\\18&9&6&10\\-------&-------&-------&-------\\\end {array}[/tex]
Evaluate (27)−1/3(27)−1/3×[271/3−272/3]
Answer:
[tex](27) - \frac{1}{3} (27) - \frac{1}{3} \times ( \frac{271}{3} - \frac{272}{3} ) \\ \\ 27 - 9 - \frac{1}{3} ( \frac{ - 1}{3} ) \\ \\ 27 - 9 - ( - \frac{1}{9} ) \\ \\ 27 - 9 + \frac{1}{9} \\ \\ \frac{243 - 81 + 1}{9} \\ \\ = \frac{163}{9} = 18.1 = 18 \frac{1}{9} [/tex]
I hope I helped you^_^
