Answer:
As
[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]
Therefore, option D is the correct answer is.
Step-by-step explanation:
Given the expression
[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]
solving to simplify the expression
[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]
[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex] ∵ [tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]
[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex]
[tex]=x^3+2x^2+5-8x^2+4x-6[/tex]
Group like terms
[tex]=x^3+2x^2-8x^2+4x+5-6[/tex]
[tex]\mathrm{Add\:similar\:elements:}\:2x^2-8x^2=-6x^2[/tex]
[tex]=x^3-6x^2+4x+5-6[/tex]
[tex]\mathrm{Add/Subtract\:the\:numbers:}\:5-6=-1[/tex]
[tex]=x^3-6x^2+4x-1[/tex]
Therefore, the simplified form of the expression is
[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]
Therefore, option D is the correct answer is.
By how much does 2/3 of 12 exceed 3/7 of 5
Answer: 5.872
Step-by-step explanation:
Two thirds of twelve is eight and three sevenths of five is around 2.14 so subtract 2.14 from eight and you get the answer above
the first term in a sequence is 3. the term to term rule is add 5. is 97 at term in the sequence? give a reason why.
I'm kind of on a time crunch so please help ASAP. Thank Youuu x
Answer: No it’s not.
Step-by-step explanation: So if to find the next number, you add five, then all of the numbers in the sequence will either end with 8 or 3. (5+3 or 0+3). Therefore 97 is not a term in the sequence.
1) Find the perimeter of the following
polygon
8 ft.
5 ft.
find the measurement of the angle? will give brainliest
Answer:
98°
Step-by-step explanation:
The two base angles of a parallelogram are always equal and likewise for the two other angles which makes the base 164° combined an 360-164=196° and 196°/2=98°
IM GIVING BRAINLIEST!!
What two integers between -100 and -20 could be divided to equal 0?
Answer:
0
Step-by-step explanation:
What divided by what equals 0? What divided by what equals 0? Specifically, what positive whole number (X) can you divide by another positive whole number (Y) to get 0? The answer is infinite.
PLZ HELP SPEEDY A line has a slope of -2 and a y-intercept of –3. Graph the line using the slope and y-intercept.
Which of the following points lie on this same line?
(–2, 0)
(–1.5, 0)
(–6, 9)
(2, –3)
(3, –9)
(–4, 4)
Answer: (-1.5,0), (-6,9), (3, -9)
Step-by-step explanation:
Tom rented a truck for one day. There was a base fee of $14.95, and there was an additional charge of 73 cents for each mile driven. Tom had to pay $220.81 when he returned the truck. For how many miles did he drive the truck?
Answer:
Tom drove 282 miles.
Step-by-step explanation:
x = number of miles driven
220.81 = 14.95 + 0.73x
-14.95 -14.93
205.86 = 0.73x
/0.73 /0.73
282 = x
Hope this helps!
Find the value of x.
Answer:
x = 44°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesGeometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set up equation
x° + 104° + 32° = 180°
Step 2: Solve for x
Combine like terms: x + 136 = 180Subtract 136 on both sides: x = 44°Answer:
44°
Step-by-step explanation:
Because Sum of three angles of a triangle equals 180 °
So 180°-(104°+32°)
=180°-72°
=44°
I will give barinlest im not playing im frfr
Answer:
M= 32 x 3
M= 96
Carly ran 96 miles
Step-by-step explanation:
May I have brainliest please? :)
Which shape is similar to shape I? A. B. C. D.
E because it's in order
what is the name of the triangle
Answer:
What is the name of the triangle
Ans) triangle with all sides equal is called equilateral, a triangle with two sides equal is called isosceles, and a triangle with all sides a different length is called scalene. A triangle can be simultaneously right and isosceles, in which case it is known as an isosceles right triangle
Step-by-step explanation:
There shall be a picture so that you say its name
Hope it helps
Answer:
answer is C. isosceles
because of the two equal sides so it cant be equilateral and it can be right angle because it doesn't have a perpendicular bisector
Step-by-step explanation:
soooo yea uh i need help :'3
2 1/3 feet :4 1/2 feet
help
[tex]2 \frac{1}{3} : 4 \frac{1}{2} \\ = \frac{7}{3} : \frac{9}{2} \\ = 14:27[/tex]
I need help with this
1.)
Domain:2,2,-8,-9,-3
Range:3,-7,-2,6,-9
2.)
Domain:-2,1,6,-6,1
Range:5,-5,-6,8,6
The Domain is the x-value and the range is the y-value.
Hope this helps!!
The conference room can hold fewer
than 100 people
Answer:
ok
Step-by-step explanation:
Answer:
Is there any attachments to this question?
Step-by-step explanation:
What is the m for this slope?
Answer: -1/4
Step-by-step explanation:
Slope=rise/run
We rise 1 up
We run 4 to the left (making it negative)
Answer:
Step-by-step explanation:
first of all m is slope and youre not giving me any numbers or resources to work with. Maybe pay attention just a bit in class
Bailey can put x houses of his holiday miniature village on each of 7 shelves. He also has 10 houses displayed on his buffet. If he wants to display at least 45 of his houses, how many houses must he put on each of the 7 shelves? Write an inequality to represent this situation
Answer:
7x + 10 ≥ 45
Step-by-step explanation:
Given that:
Number of shelves = 7
Number of houses to display on each shelf = x
Number of houses to display = atleast 45 (≥)
Number displayed on buffet = 10
Number displayed on buffet + (number of shelves * number per shelf) ≥ number of houses to display
10 + (7 * x) ≥ 45
7x + 10 ≥ 45
26) John makes $12 per hour as a lifeguard and $8 per hour at the library.
This summer, he would like to make at least $500 working his two jobs.
Which graph represents the number of hours he must work at each job to
reach his goal?
Answer:
B
Step-by-step explanation:
In a group of 30 students. 8 take Italian, 12 take German wind 3 take both languages. How many students in the group neither take German nor Italian?
A bagel and a slice of pie cost $4. The slice of pie cost $1.60 more than the bagel. How much did the bagel cost
Answer:
$2.04
Step-by-step explanation:
$4-$1.60
Answer:Bro u just saved my life with that answer
Step-by-step explanation:
5x-4y=-18 and x-4y=6
Answer:
x = -6 and y = -3
Step-by-step explanation:
x- 4y =6
x =4y +6......(i)
5x -4y =-18
20y +30 - 4y = -18
16y = -48
y = -3
x = -12+6
x = -6
a._x2 _ 25
How do you do this
Answer:
x=[tex]\frac{+}[/tex]5 or x=5, x=-5
Step-by-step explanation:
If the question is [tex]x^{2}=25[/tex] then you take the square root of both sides. [tex]\sqrt{x^{2}}=\sqrt{5^{2}}[/tex] because 25=5*5=[tex]5^{2}[/tex].
When you simplify you get x=[tex]\frac{+}[/tex]5
So x=-5, =5.
Figure A is a scale image of figure B. What is the value of x?
Answer:
The value of x = 20.
Step-by-step explanation:
Figure B is the scale image of A.
It is clear that:
side 10 of figure A has the image side of 12.5 in figure B.which can be obtained by multiplying 10 with 1.25
i.e.
10*1.25=12.5so the side 16 of figure A must have to be multiplied by 1.25 to get the image the figure B.
so
16*1.25=20Therefore, the value of x = 20.
Y: 2y - 3(4y-3) = 9y + 28
Answer:
y = - 1
Step-by-step explanation:
Given
2y - 3(4y - 3) = 9y + 28 ← distribute and simplify left side
2y - 12y + 9 = 9y + 28
- 10y + 9 = 9y + 28 ( subtract 9y from both sides )
- 19y + 9 = 28 ( subtract 9 from both sides )
- 19y = 19 ( divide both sides by - 19 )
y = - 1
how do i find the value of x?
Answer:
x = 18 (verified by algebra) ✅Step-by-step explanation:
When we have two similar triangles, we can use a proportion to determine an unknown value.
[tex]\frac{2x + 80}{87} = \frac{80}{60}[/tex]
We will cross multiply to get two equivalent equations that can be solved.
(2x + 80) x 60 = 120x + 4800
We can simplify this by dividing both sides by 24 to get a much simpler equation to work with: 5x + 200.
80 x 87 = 6960
We will also divide this by 24. The answer is 290
5x + 200 = 290
Subtract 200
5x = 90
Divide by 5
x = 18
Now, we can also check to make sure we did everything correctly.
(2(18) + 80) x 60 = 120x + 4800
(36 + 80) x 60 = 120(18) + 4800
116 x 60 = 2160 + 4800
6960 = 6960 ✅
please helppppppppppp!
Answer:
3y - x = 21
Step-by-step explanation:
Answer:
3y - x = 21
Step-by-step explanation:
y = -3x - 8
The perpendicular line has the reciprocal slope.
So, the slope of this perpendicular line would be 1/3.
The equation that has the slope of 1/3 is 3y - x = 21.
Hope this helps!
7k-3=6k what does k equal
Answer:
k = 3/13
Step-by-step explanation:
7k-3=6k
3 = 6k + 7k
13K = 3
k = 3/13
ASAP WILL MARK BRAINLIEST
Four solutions.
This is an example of a non-linear (this one is quadratic) system with 2 variables. Quadratic equations have 2 roots, this system has two equations that means 4 solutions.
Hope this helps.
8.3 + 2.7 Adding and Subtracting Decimals
Answer:
your answer is 11
Step-by-step explanation:
What is the equation of the vertical line through (-8, 5)
Answer:
The equation of the vertical line passing through the point (-8, 5) will be:
[tex]x=-8[/tex]Step-by-step explanation:
As we have to determine the equations for the horizontal and vertical lines passing through the point (-8, 5).
To determine the equation for the vertical line passing through the point (-8, 5), we must observe that the vertical line will always have the same x-value regardless of y-values.
Therefore, the equation of the vertical line passing through the point (-8, 5) will be:
[tex]x=-8[/tex]PLEASE HELP ASAP!!!!!!! 26 points
If Serena puts $1000 in a savings account that pays 2% interest compounded annualy, how much money will she have in the account after 10 years? (Hint: To find the amount of money after 1 year. multiply by 1.02.)
Answer:
5000
Step-by-step explanation:
1000 ÷ 2 = 500 x 10 = 5000
Answer:
$1221.19Step-by-step explanation:
Formula for compound interest:
A= P(1+r/n)^n x t
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
We know that Serena pays annually meaning yearly (12 months or 1 year)
So after substituting all the numbers in,
A= 1000(1+0.02/12)^(12x10)
We change the rate to 0.02 because we must divide 2% by 100%. And divide the rate by number of times applied per time (n).
DISCLAIMER:
I have not done compound interest questions in a long time but if you want to confirm my answer, go to a calculator site and just input the numbers on there.