Answer:
10 areas
Step-by-step explanation:
5 minutes = 1 area
→ Divide the 50 by the 5
50 ÷ 5 = 10
→ Multiply this by the area
10 × 1 = 10
Simplify the expression to a polynomial in standard form:
(3x2 - 4x – 5)(-2x2 + 2x + 2)
Answer:
- 6[tex]x^{4}[/tex] + 14x³ + 8x² - 18x - 10
Step-by-step explanation:
Given
(3x² - 4x - 5)(- 2x² + 2x + 2)
Each term in the second factor is multiplied by each term in the first factor, that is
3x²(- 2x² + 2x + 2) - 4x(- 2x² + 2x + 2) - 5(- 2x² + 2x + 2) ← distribute parenthesis
= - 6[tex]x^{4}[/tex] + 6x³ + 6x² + 8x³ - 8x² - 8x + 10x² - 10x - 10 ← collect like terms
= - 6[tex]x^{4}[/tex] + 14x³ + 8x² - 18x - 10
[tex]\frac{1}{3} (21y + 39) = -36[/tex]
1/3(21y+39)=-26 can be simplified into
7y +13 = -26
Next, subtract 13 from both sides
7y= -39
Now divide both sides by 7
Your answer is y=-39/7
Answer:
y = -7
Step-by-step explanation:
1/3 (21y+39) = -36
Distribute
7y +13 = -36
Subtract 13 from each side
7y+13-13 = -36-13
7y = -49
Divide each side by 7
7y/7 = -49/7
y = -7
Brier has 2 hours to finish a slide presentation. It takes him 1/6 hours to create each slide. How many slides can he creat in 2 hours?
Answer:
12 slides
Step-by-step explanation:
If he can make 6 slides in each hour, and he has 2 hours, take 6x2=12 because there are 2 hours.
If [tex]f(x)=3^x[/tex], prove that [tex]f(x) + f(x+1)=4f(x)[/tex]
[tex]$f(x)+f(x+1) \stackrel{1}{=} 3^x+3^{x+1} \stackrel{2}{=} 3^x+3^x\cdot3^1\stackrel{3}{=}3^x+3\cdot3^x\stackrel{4}{=}4\cdot3^x\stackrel{5}{=}4\cdot f(x)[/tex]
1) Substitution from definition.
2) We use [tex]$x^{a+b}=x^a\cdot x^b[/tex]
3) We are changing the order of 3 and [tex]3^x[/tex].
4) We add 1 and 3 [tex]3^x[/tex] and we get [tex]4\cdot 3^x[/tex]
5) Substitution from definition (but the other way than at the beginning).
a man bought a 4 kg apples at the rate of rs 50 per kg he sold 3 kg apples at the rate of rs 65 and 1 kg apples at rs 40 find his profit or loss amount.
Answer:
35rs of profit
Step-by-step explanation:
4*50=200rs- he spent
3*65+1*40=195+40=235rs- he got
235-200=35rs of profit
The quotient of a number and three tenths decreased by 2 is 6
I believe the answer you are looking for is 2.4.
Solution:
n over 3/10-2=6
n over 3/10=8
Multiply 3/10 and 8
You will get 2.4.
The length and breadth of a retanlge are (2x+y) cm (x+2y)cm respectively. Find its area.
Answer:
2x^2+5xy+2y^2
Step-by-step explanation:
Area = l*b
Area = (2x+y)*(x+2y)
Area = 2x^2+5xy+2y^2
1/5 part of pole is inside the mud, 2/3 part is inside the water and the remaining length of 10m is above the surface of the water. Find the length of the pole .
Answer:
75m
Step-by-step explanation:
let X be the length of the pole1/5 of the pole is in water so =1/5X2/3 of the pole is in mud= 2/3X10m is above the polelength of the pole (X)= length of pole in mud+length of pole in water+length of pole in airX(m)=1/5X+ 2/3X+10X- 13/15X=102X= 10x15X=75mABC is an isosceles triangle: AC = 13cm. What is the length of AB?
AC=13cm
[tex]\\ \sf\longmapsto AB[/tex]
[tex]\\ \sf\longmapsto AC[/tex]
[tex]\\ \sf\longmapsto 13cm[/tex]
Please help on the question below
Any help is appreciated, thank you:)
Answer:
Here is your answer...
Hope it helps
17. In a speech class, students must give a final speech for their exam. The speech can be 15 minutes, or within that time by 4 minutes. Write an absolute value equation that represents the minimum and maximum lengths of the final speech
Answer:
| t − 15 | = 4
Step-by-step explanation:
absolute value is weird and i see no use for it
Typical grade distribution for a geometry course with 35 Students
Answer:
if this is a legitimate math homework question and
not just a question about you personal math class...The answer expected would be calculated using the empirical normal distribution rule (68-9599.7):
1 - F
5 - D's
23 C's
5 - B's
1 - A
Step-by-step explanation:
i really need this answer
Sarah counted the number of tiles at each step and made a table. She explained that the
number of tiles in each figure was always 3 times the step number minus 2.
Create an equation that fits Sarah's way of seeing the relationship.
PLS HELP DUE IN 10 min!!
Answer:
n(number of tiles) x 3 - 2
Step-by-step explanation:
times mean multiplication and minus mean subtraction, I hope this helps.
An equation is formed of two equal expressions. An equation that fits Sarah's way of seeing the relationship is y = 3x - 2.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
As stated by Sarah that "the number of tiles in each figure was always 3 times the step number minus 2", this can be written in the form of an equation as shown below.
Number of tiles = [3 × (Number of steps)] - 2
Assume that the number of tiles is represented by y, while the number of steps can be written as x. Therefore, we can write the equation as,
y = 3x - 2
Now, let's check the equation,
When the number of steps is 3, the number of tiles is 7.
y = 3(3) - 2
y = 9 - 2
y = 7
Since the number of tiles is the same, therefore, the equation is correct.
Hence, an equation that fits Sarah's way of seeing the relationship is y = 3x - 2.
Learn more about Equation here:
https://brainly.com/question/14686792
#SPJ2
Help! write the set of numbers in set-builder notation: the set of all real numbers except 100
Answer:
Step-by-step explanation:
The set of all real numbers except for 100 in set builder notation (assuming the variable is x) is:
The very first x represents the variable.
The second with the R represents the number. Here, we want all real numbers.
And the third is the constraint. We want all real numbers except for 100.
Answer:
{ x | x ∈ R, x ≠ 100 }
Step-by-step explanation:
Real numbers (R) include all rational and irrational numbers.
Hence, If we need to write it in set-builder notation, we will write as:
{ x | x ∈ R, x ≠ 100 }
In words : "x such that x belongs to R, x is not equal to 100"
This shows that x is any real number except for 100.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Peace!Can someone help me out?
Answer:
I think it's D.................
Hurry I'm timed please
Give the geometric representation of 2x+ 1= x-4 as an equation in (a) one variable (b) two variables
please help
Answer:
Step-by-step explanation:
2x+1=x-4
2x-x= -4-1
1x=-5
x=-5convert 550 minutes into weeks
Answer:
0.0545635
Step-by-step explanation:
divide the time value by 10080
Solve for x: -2 - 4 > 8
(9th grade Algebra 1)
Answer:
A
Step-by-step explanation:
-2x-4>8
-2x>12
-x>6
x<-6
Answer:
[tex]x < - 6[/tex] (first option)
Step-by-step explanation:
[tex] - 2x - 4 > 8[/tex]
[tex] - 2x > 8 + 4[/tex]
[tex] - 2x > 12[/tex]
[tex] = x < - 6[/tex]
At the beginning of the school year, Jamie had
$500 in her savings account. She wants to have at
least $200 left in the account at the end of the
school year. Each week, she withdraws $30 for
spending money. To determine how many weeks
she can spend $30, Jamie wrote and solved this
inequality
Answer:
Hmmm let me solve then I will answer
This three pleaseee
Answer:
Hi. 6.2 is rational
Step-by-step explanation:
Irrational numbers never end. They go on forever.
x^3*x^8=x^11 (When you multiply, add the powers)
What is the factored form of this expression x^3+3x^2-6x-18
Answer:
(x + 3) (x^2 - 6)
Step-by-step explanation:
Factor the following:
x^3 + 3 x^2 - 6 x - 18
Factor terms by grouping. x^3 + 3 x^2 - 6 x - 18 = (x^3 + 3 x^2) + (-6 x - 18) = x^2 (x + 3) - 6 (x + 3):
x^2 (x + 3) - 6 (x + 3)
Factor x + 3 from x^2 (x + 3) - 6 (x + 3):
Answer: (x + 3) (x^2 - 6)
Y is between X and Z. T is
between Y and Z. If XZ = 90, YT = 22, and XY = TZ, what is XT?
(step-by-step pls)
The pages in a book are numbered starting with one. The book has 250 pages. How many digits did the printer use in numbering the pages of the book? A. 640 B. 642 C. 320 D. 321
Answer:
B)642
Step-by-step explanation:
Between 1 and 9 , it will use 9 letters
Between 10 and 99, there are 90 different numbers and every number have 2 digits so it will use 180 letters
Between 100 and 250 , there are 151 different numbers and every number have 3 digits so it will use 453 letters
Totally it used 9+180+453=642
calculate the mean of the set of boys and girls below:
boys 21, 18, 20, 16, 16, 22, 28, 24, 26
girls 13, 16, 15, 14, 15, 19, 22, 26, 12
A-boys: 21.22 girls: 16.89
b-boys, 21 girls, 15
c-boys 18.5 girls 17
d-boys 18.5 girls 15
Answer:
Boys: 21.22 Girls: 16.89
Answer: A
Step-by-step explanation:
Add all the data points and divide it by the number of the data points.
Is the following irrational or rational?
ILL GIVE BRAINLIEST
6.4
2.178046372849
-2
5 x (-4)-((-6)-7)
(The X means to multiply)
Answer:
[tex] - 62[/tex]
Step-by-step explanation:
[tex]5 \times ( - 4) - (( - 6) - 7) \\ = - 20 - 42 \\ = - 62[/tex]
Hope it is helpful.....Determine whether each pair of segments is congruent.
Plz can someone help me
Answer:
23. Congruent
24. Not congruent
Step-by-step explanation:
23. KJ and HL:
Since the side lengths are both 4 in, these segments are congruent.
24. EH and FG:
Since the side lengths are different numbers (0.45 cm and 0.5 cm), these segments are not congruent.
Please help me out, giving brainliest. Show your work pls!
Answer: The solution is in the attached file below
Step-by-step explanation: