Answer:
- 20x² + 26x + 8
Step-by-step explanation:
Given
4(2x³ - 5x² + 8x + 2) - 6x - 8x³ ← distribute parenthesis by 4
= 8x³ - 20x² + 32x + 8 - 6x - 8x³ ← collect like terms
= - 20x² + 26x + 8
16. Natural numbers are closed under division. True or false
Answer:
Step-by-step explanation:
False
First you have to know what a natural number is.
They are all the integers from 1 to infinity.
Naturally they are closed for addition. 3 + 9 = 12. You can make as many examples as you like. You will not get anything outside the natural numbers.
3934859433993393390 + 4 + 22 is still going to give you a natural number.
Subtraction is a different matter.
44 - 100 is not in the natural number system.
Multiplication is OK.
5555 * 44444 still is a member of the natural numbers.
What about division? Remember, all you need is one example that doesn't work to say that the natural numbers aren't closed. Ready. How about
33/83?
Express the perimeter of a square as a
function of its area.
Answer:
perimeter of a square =side side
whats the missing length indicated?!? help!!
Answer:
A) 27
Step-by-step explanation:
[tex] \frac{16}{16 + 12} = \frac{63 - ?}{63} [/tex]
➡️ [tex] \frac{4}{7} = \frac{63-? }{63}[/tex]
➡️ [tex]63 - ? = 36[/tex]
➡️ [tex]? = 27[/tex]
Can someone plz help me?
Answer:
c
Step-by-step explanation:
[tex] \frac{1}{6} mile = 1hour \\ \frac{1}{5} mile = xhour \\ \frac{1}{6} x = \frac{1}{5} \\ x = \frac{1}{6} \div \frac{1}{5} \\ \frac{1 }{6} \times \frac{5}{1} = \frac{6}{5} [/tex]
pls mark brainliest
SOMEONE WHO LIKES MATHS OR CAN DO IT PLS HELP COZ THIS IS SO CONFUSING:((. do the ones you know !! I’ll brainlist:)
a) c + y = 10 + 11 = 21
b) q + b + r = -14 + (-7) + (-13) =
= -(14 + 7 + 13) = -34
c) 8x + 3z = 8 · 9 + 3 · 4 = 72 + 12 = 84
d) 6a + 5b = 6 · (-1) + 5 · (-3) = -6 - 15 = -21
e) -9y + 2z = -9 · (-5) + 2 · (-7) = 45 - 14 = 31
f) -3t + 4y + s = -3 · 8 + 4 · (-2) + (-2) =
= -24 - 8 - 2 = -(24 + 8 + 2) = -34
g) y² + c = 4² + 7 = 4 · 4 + 7 = 16 + 7 = 23
h) a² + x = (-10)² + (-8) = 100 - 8 = 92
i) b + 2y² = 2 + 2 · 6² = 2 + 2 · 36 =
= 2 + 72 = 74
j) 3y² - 3z = 3 · 6² - 3 · (-7) = 3 · 36 + 21 =
= 108 + 21 = 129
tell whether the two fractions form a proportion 3/4 and 16/20
Answer:
check by cross multiplication
3*20 = 4*14
60 ≠ 56
no does not form a proportion
Step-by-step explanation:
johanna starts the month with $54 in her savings account. at the end of each week, johanna adds $8 to the account. how much will johanna have in her account after 5 weeks?
Answer:
$94
Step-by-step explanation:
To find out how much she has after 5 weeks we need to use how much she has at 1 week. We know she starts the month with $54 and adds $8 at the end of a week. Knowing this we can multiply her amount for 1 week by 5 weeks (8x5), this gets us to $40, but since she started the week with 54 we need to add that to her 5 week's total (54+40), so we get a total of $94 after 5 weeks.
The total amount in Johanna's account after 5 weeks will be $94 if Johanna starts the month with $54 in her savings account at the end of each week, Johanna adds $8 to the account.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
Johanna starts the month with $54 in her savings account.
At the end of each week, Johanna adds $8 to the account.
Let x be the total amount in Johanna's account after 5 weeks.
The linear equation in one variable can be framed as:
x = 54 + 8×5
x = 54 + 40
x = $94
Thus, the total amount in Johanna's account after 5 weeks will be $94 if Johanna starts the month with $54 in her savings account at the end of each week, Johanna adds $8 to the account.
Learn more about the linear equation here:
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a middle school has 212 people. 118 are students. the rest are adults. what is the ratio of students to adults?
Answer:
Students:Adults = 118:94
Step-by-step explanation:
212-118=94
what is x in 0x<3 i though you couldn't divide anything with 0
Step-by-step explanation:
0x<3
x>3/0
x>∞
x is undefined.
If the original ordered pair in a shape was ( 3, 4), what would the new ordered pair be after a Dilation with a scale factor of 2 ?
Answer:
(6, 8 )
Step-by-step explanation:
Assuming the dilatation is centred at the origin, then multiply the coordinates by the scale factor 2, that is
(3, 4 ) → (2(3) , 2(4) ) → (6, 8 )
Troy is writing a book of short stories. It is his
goal to write one short story this month, two
short stories next month, three short stories
the following month, and so on for 13 more
months. How many stories will he have written
at the end of sixteen months?
Answer:
91 short stories
Step-by-step explanation:
You just add 1 + 2 + 3 + 4 + 5 + 6... all the way to 13, and then at the end of 16 months, Troy still only wrote 91 stories since he only wrote them up until 13 months, and then stopped afterwards.
5 less than the difference of a number f and 35
Answer:
See below.
Step-by-step explanation:
There are 2 options in finding the difference between f and 35, as you did not state in the question which if the 2 is the larger number.
(f-35)-5=f-35-5
=f-40
OR
(35-f)-5=35-f-5
=30-f
5 less than the difference of a number f and 35 is f - 40
The expression can be represented mathematically as follows:
The difference of a number f and 35 can be represented as follows:
f - 355 less than the difference of a number f and 35 can be represented as follows:
(f - 35) - 5f - 35 - 5f - 40read more: https://brainly.com/question/24383693?referrer=searchResults
Can someone pls help me with 1,4,5 and 6
Answer:
(-1,4)
Step-by-step explanation:
from,
midpoint (x,y) =(x1+x2)/2, (y1+y2)/2
=(-5+7)/2, (5+3)/2
=(-1,4)
the midpoint is (-1,4)
12.36 divided by six
Solve for y.
–5(y − 3) − 10 = –6y
y =
Answer:
[tex]y = - 5[/tex]
Step-by-step explanation:
[tex] - 5(y - 3) - 10 = - 6y[/tex]
➡️ [tex] - 5y + 15 - 10 = - 6y[/tex]
➡️ [tex] - 5y + 5 = - 6y[/tex]
➡️ [tex] - 5y + 6y = - 5[/tex]
➡️ [tex]y = - 5[/tex]
sin^2a + tan^2a sin^2a = tan^2a
the answer is in picture
Can someone help this is the last question I’m asking so if u help U guys will get 25points and pls no spamming and typing unnecessariy answers
Hi ;-)
[tex]x=(180^o-70^o):2=110^o:2=\boxed{55^o}\\\\y=180^o-55^o=\boxed{125^o}[/tex]
help me with this algebra problem
Answer:
[tex]5[/tex]
Step-by-step explanation:
[tex]105 \div 21[/tex]
[tex] = 5[/tex]
A video game set can be bought on hire purchase by making a deposit of $190 and 12 monthly installments of $171 each. Calculate the hire purchase price cost of the video game set.
Answer:
the purchase price would be $2142
Step-by-step explanation:
90+171×12
1.10.3 Test (CST): Coordinate Geometry
Question 10 of 25
What is the area of a square with sides of length 9?
A. 54 square units
B. 81 square units
C. 36 square units
O D. 18 square units
SUBMIT
The area of a square with sides of length 9 is 81 square units.
What is an area?Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
The space enclosed by the boundary of a plane figure is called its area.
The area of a figure is the number of unit squares that cover the surface of a closed figure.
Given that, a square with side length of 9 units, we need to find its area, We know that, the area of a square is given by the square of it side, so Area = side²
Area of the given square = 9²
= 9 x 9
= 81 sq. units
Hence. the area of a square with sides of length 9 is 81 square units.
Learn more about areas, click;
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Help me pls i have to finish my homework i have more questions to post too
Step-by-step explanation:
16)(a²-b)÷6
subtitute a and b above:
={(5)²-1}÷6
=(25-1)÷6
=24÷6
=4
18)y-(4-x-y÷2)
subtitute x and y above:
=2-(4-3-2÷2)
=2-(4-3-1)
=2-(4-4)
=2-0
=2
Note:if you need to ask any question please let me know.
What are the coordinates after a 90 degree clock-wise rotation around the point (1, 4)?
Answer:
Im pretty sure it's (-4,-1)
The time in seconds, t, it takes for a specific object being dropped from a particular height in feet above sea level, h, to reach the ground can be found by the radical function t equals one fourth times radical h period At what height should you drop an object in order for it to reach the ground in 12 seconds?
Dropping the object from a height is an illustration of an object in free fall. The object should be dropped at 2304 feet above the sea level.
Given that:
[tex]t = \frac 14 \sqrt h[/tex]
The height is calculated as follows:
[tex]t = \frac 14 \sqrt h[/tex]
Multiply both sides by 4
[tex]4t = \sqrt h[/tex]
Square both sides
[tex]16t^2 = h[/tex]
Rewrite as:
[tex]h = 16t^2[/tex]
The object reaches the ground in 12 seconds.
So: [tex]t = 12[/tex]
This gives:
[tex]h = 16 \times 12^2[/tex]
[tex]h = 2304[/tex]
Hence, the object should be dropped at 2304 feet above the sea level.
Read more about free falls at:
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What is the answer to -4/3 / -1/4?
[tex] \frac{16}{3} [/tex]
Step-by-step explanation:
[tex] \frac{ \frac{ - 4}{3} }{ \frac{ - 1}{4} } [/tex]
➡️ [tex] \frac{ \frac{4}{3} }{ \frac{1}{4} } [/tex]
➡️ [tex] \frac{4}{3} \div \frac{1}{4} [/tex]
➡️ [tex] \frac{4}{3} \times 4[/tex]
➡️ [tex] \frac{4 \times 4}{3} [/tex]
➡️ [tex] \frac{16}{3} [/tex]
18. What is the least common denominator of the following
fractions? 3/10 and 1/4
Answer:
20
The denominators of 3 /10 and 1 /4 are 10 and 4.
The factors of 10 are 2 × 5 and 2 × 2
Therfore the LCD should have two 2's and one 5.
This means the answer is:
2 × 2 × 5 = 20
I hope this helps :)
Which is the value of this expression when )=-2 and k=-1?
3
jk2
0-64
Nino
O
w
o
NI -
O 64
Answer:
64
........................
Use the numbers 12 through 17. Place them in the connected circles so that the numbers along each line have a sum of 50. Do this in two different ways.
Someone please help me, my brain is stuck.
(Fun question every week to answer) - Yes this is really verixsans second account -_-
Answer:
[13, 15, 17, 16, 12]
[16, 12, 17, 13, 15]
[16, 15, 14, 13, 12]
[17, 13, 15, 12, 14]
Step-by-step explanation:
Writing a Python code, I got the answers given, reading from left to right to down. For example, for [13, 15, 17, 16, 12], 13 is the top left circle, 15 is the middle right, 17 is the far right, 16 is the bottom left, and 12 is the bottom right
In the figure
AB = AD, BC = CD
prove that ∠ABC = ∠ADC
AB = AD [Given]
BC = CD [Given]
AC = AC [Same line segment]
So, ΔABC ≅ ΔADC [By SSS congruence criteria]
So, ∠ABC = ∠ADC [CPCT (Corresponding parts of congruent triangles)]
Hence, proved.
Answer:
I hope it will help U.
If a*b means 2a + b , then what is 2*5 ?
7
9
12
14
none of these
Answer:
9
Step-by-step explanation:
let a = 2
b = 5
2a + b
Substituting the values,
=> 2(2) + 5
=> 4 + 5
=> 9
Let us consider that a = 2 ; b = 5
So, 2a + b
Substitute,
2a + b
→ 2×2 + 5
→ 4 + 5
→ 9
Hope it helps you...
Answered by Benjemin
Simplify. 1/3(1−1/4)2 Enter your answer, as a simplified fraction, in the box.
Answer:
3/ 16
Step-by-step explanation:
I hope this helps :)