Answer:
t2 - 2t - 2 or C. - Hope it helps!
Find the area I will mark the BRAINIEST
Answer:
Step-by-step explanation:
On an island there are 7 cities each 2 of them connected by a direct road they are building a 8th city they also want it to connect with the other 7 existing cities how many roads will there be after they build the 8th city
Answer:
After the 8th city is built there will be 28 roads between the cities
Step-by-step explanation:
The given parameters are;
The number of cities initially on the island = 7 cities
The number of roads between each 2 cities = 1 road
Therefore, we have the number of roads between the 7 cities are;
7 cities taking 2 at a time = ₇C₂
[tex]_7C_2 = \dfrac{7!}{(7 - 2)!\cdot 2!} = 21[/tex]
The initial number of roads between the 7 cities = 21 roads
The number of roads, 'n' there will be after the 8th city is built is therefore;
[tex]n = _8C_2 = \dfrac{8!}{(8 - 2)!\cdot 2!} = 28[/tex]
The number of roads there will be after the 8th city is built, n = 28 roads.
Determine the Equation of the line Perpendicular to 2x -3y +5= 0 and passers through (-6,-3)
9514 1404 393
Answer:
3x +2y +24 = 0
Step-by-step explanation:
In general, the equation of a perpendicular line can be found by swapping the coefficients of x and y, then negating one of them. The value of the constant will be what is required to make the line pass through the given point.
The equation will be of the form ...
3x +2y +c = 0
At the given point, (x, y) = (-6, -3), we have ...
3(-6) +2(-3) +c = 0 . . . . substitute the given point coordinates
-18 -6 +c = 0 . . .simplify
c = 24 . . . . . . . . add 24
The general-form equation for the line is ...
3x +2y +24 = 0 . . . . . shown in blue in the attachment
20 points! Pls help!!
Answer:
s=8
Step-by-step explanation:
7-[tex]\frac{s}{2}[/tex]>3
14-s=6
-s>6-14
-s>-8
s<8
Ana has a hypothesis that girls get up earlier and, as a result, usually enter Ana's Donut Shop before boys do. To
test her hypothesis, she spends 10 mornings asking the first 3 people to enter her shop whether they are a boy
or a girl.
The data she collects is given in the table below. "G" represents a girl, and "B" represents a boy.
Drag the bars to make a relative frequency plot that shows the proportion for each possible number of girls in
the first 3 customers in a day.
Answer:
0 = 0.2 1 = 0.3, 2 = 0.4, 3 = 0.1
Step-by-step explanation:
Khan Academy told me
In the app Kami, can the teacher see what time you edited the assginment. Like if i edit it at 3:00 pm, can they see what and how fast i typed?
Answer: I don't think so because they can only see it when you turn it in. Trust me I have kami too.
Use the function below to find F(1).
F(t) = 2•1/2^3t
Please Help
Answer:
C. 1/4
Step-by-step explanation:
2 * 1/2^3t
substitute 1 for t so it would be:
2 * 1/2^3 = 2 * 1/8 = 2/8 = 1/4
James has $10 in 5-cent and 10-cent coins in his change jar and counts 157 coins in total. How many 10-cent coins does he have?
Show working out!!
Answer:
10 cent coins = 43
Step-by-step explanation:
x = 10 cent coins
y = 5 cent coins
x + y = 157, then y = 157 - x
$10 = 1000 cents
0.10x + 0.05y =1000
substitute for y:
0.10x + 0.05(157 - x) = 1000
0.10x + 7.85 - 0.05x = 1000
combine like terms:
0.05x = 2.15
x = 43
y = 114
Q1 : Gina writes the letters of the word PROBABILITY on separate cards. She picks one card at random. What is the probability that the card Gina selects is:
a) The letter B
b) A vowel
c) A letter before M in the alphabet?
Answer:
2/11
4/11
6/11
Step-by-step explanation:
probability the letter B = number of times b appears in the word / total number of alphabets
total number of alphabets = 11
number of times b appears in the word = 2
2/11
a vowel = total number of vowels in the word / total number of alphabets
vowels include = a,e,i,o,u
vowels in the word = a, o, i
total number of vowels in the word = 4
4/11
A letter before M in the alphabet = total number of alphabets before m in the word / total number of alphabets
letters before m = A, B, C, D, E, F, G, H, I, J, K, L
letters before m in the word = b,a, i , l
number of words before m = 6/11
2[3(4 to the second power + 1)] - 2 to the third power
Answer:
the answer isn’t 95
Step-by-step explanation:
2[3(4^2+1)]-2^3
2[3(17)]-2^3
2[51]-2^3
2x51-2^3
103- -2^3
103-8
95
Help me plz pretty please
pweassss e help meee◑__◐
Answer: C
Step-by-step explanation:
divide 342 by 7 and round to the nearest whole number
What must the measure of the
angle marked yº be in order for the seat of the bench to be
parallel to the ground?
Answer:
Linear pair angle of 136 degree =180-136
=44
Therefore angle y is alternate angle of 44
Therefore angle y=44
Answer:
44
Step-by-step explanation:
180 - 136 = 44
I will mark you brainlist!
Bobby build a wooden rectangular sandbox with dimension of 3 1/4 by 5 1/2 he now wants to expand each side by 1/4 feet. What would be the new dimension of the sandbox?
please answer these 5 questions:). (for a practice test graph photo up above) (question 9) use the graph to find the slope and y-intercept. (question 10) steve started with $50 and saved $20 each week. what is the equation when y represents the amount of savings and x represents weeks? how much will steve have after 4 weeks? (question 11) brittany started with $300 and spent $40 per week. what is the equation when y represents savings and x represents weeks? how much will brittany have after 4 weeks? (question 12) convert to slope-intercept form. -5/8x - 1/2y = 1 (question 13) convert to slope-intercept form. 9 + 3x = 6y
Answer:
9. slope: 1/2 y-int: -4
10. y=20x+50
11. y=-40x+300
12. i dnt know
13.9/6+3/6x=y or 1.5+0.5=y
Step-by-step explanation:
10. starts at 50, goes up by 20 per week
11. starts at 300, goes down 40 per week
13.
9+3x=6y
9/6+3/6x=y or 1.5+0.5=y
Mary McDonald makes mugs in Miami. She makes two sizes of mugs: a small mug that she sells for
$2.50 and a large mug that she sells for $5.75. Yesterday Mary made $56. Before she opened her shop in the morning, she had 200 mugs in her inventory. At the end of the day she has 188. How many mugs of
each price did she sell?
Answer:
4 small
8 large
Step-by-step explanation:
s - small mug
l - large mug
Yesterday she had 200 at start of day
at end of day 188 left, so she sold 12 mugs
(1) s + l = 12
(2) 2.50s + 5.75l = 56.00
Solve for l in (1)
l = 12 - s
substitute in l = 12 - s into (2)
2.50s + 5.75(12-s) = 56.00
2.50s + 69.00 - 5.75s = 56.00
-3.25s + 69.00 = 56.00
-3.25s = -13.00
s = 4
to find l substitute s = 4 into (1)
4 + l = 12
l = 8
Khloe invested $11,000 in an account paying an interest rate of 4.8% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 17 years?
Answer:
i just did this problem its 24,880
Step-by-step explanation:
Please help if you know the answer
Answer:
5/12, 6/12 OR 1/2, 4/12 OR 1/3, 9/12 OR 3/4
Step-by-step explanation:
Help Pleaseeeeeeeeeeeeeee!
Answer:
12x+5=162
Step-by-step explanation:
16 cars are parked if 1/4 of them are blue how many cars are blue
Answer: 4
Step-by-step explanation:
Answer:4
Step-by-step explanation: for example, you have 1/4 if you double that you get 2/8, triple it would be 3/12, next would be 4/16
What is the area of the circle? I need help please!
Answer: 78.5
Step-by-step explanation:
The difference between the tens digit and ones digit of a two-digit number is 4. The number is 45 greater than the number created when the digits are reversed. What is the two-digit number?
Answer:
180
Step-by-step explanation:
beacause if you did
45 x 4 = 180
180- 184 = 4
sorry it's 3 digit number
Find the area of the triangle
Answer:
C) 17.1 square units
Step-by-step explanation:
Use Heron's formula to calculate the area of the triangle:
[tex]Area = \sqrt{s(s-a)(s-b)(s-c)}[/tex] where [tex]s=\frac{a+b+c}{2}[/tex] which represents the semi-perimeter of the triangle:
[tex]s=\frac{9.9+6.1+6}{2}=11[/tex]
Therefore:
[tex]Area = \sqrt{11(11-9.9)(11-6.1)(11-6)}\\[/tex]
[tex]Area = \sqrt{11(1.1)(4.9)(5)}\\[/tex]
[tex]Area = \sqrt{296.45}\\[/tex]
[tex]Area = 17.2[/tex]
Therefore, the closest answer choice is C) 17.1 square units
5/8 - 2/9 × 3/8 fraction simplify quick please
We had a revision and I forgot can you help me
Answer:
ans is 13/25
Step-by-step explanation:
hope it helps!!!
6. There are 12 girls and 8 boys in
Ms. Sander's class. Each day, she
randomly asks one student to take
attendance. In 180 school days, which
is the best prediction for the number of
times that the student will be a girl?
A. 72
(B. 90
C. 99
D. 108
Answer:
90
Step-by-step explanation:
its half
PLEASE EMERGENCY HELP DONT LINK FILES!!!!
The floor of a storage unit in the shape
of a rectangular prism has an area of 106 1/4 square feet. The height of the storage unit is 7 1/2 feet. What is the volume of the storage unit?
A. 742 1/8ft B. 744 1/4 ft C. 795 1/4 ft D. 796 7/8 ft
Answer:
V = 796 7/8 ft^3
Step-by-step explanation:
The storage unit has a rectangular shape.
Thus, the volume is V = (area of floor)(height)
V = (106 1/4 ft^2)(7 1/2 ft)
V = 796 7/8 ft^3
Converting 106 1/4 ft to 106.25 makes it easier to use a calculator here. Same with 7 1/2 ft: 7.5 ft
A map of the Orchid Hill Neighborhood is shown. The population of Orchid Hill Neighborhood is 360 people.
Answer:
(a) The area is 0.03 square miles
(b) The population density is 12000 people per square miles
Step-by-step explanation:
Given
See attachment for complete question
Solving (a): Area of Orchid Hill (in square miles)
The dimension of the neighborhood is 4 blocks by 3 blocks
Since each block are of the same dimensions
The area is calculated as:
[tex]Area = 4blocks * 3 blocks[/tex]
If [tex]20\ blocks = 1\ mile[/tex] then:
[tex]1\ block = \frac{1}{20} mile[/tex]
[tex]1\ block = 0.05mile[/tex]
So, we have:
[tex]Area = 4blocks * 3 blocks[/tex]
[tex]Area = 4 * 0.05 * 3 * 0.05[/tex]
[tex]Area = 0.03mi^2[/tex]
Solving (b): The population density of the neighborhood as people per square mile
From the question, we have:
[tex]People = 360[/tex]
[tex]Area = 0.03mi^2[/tex] --- calculated
So, the population density is:
[tex]Density = \frac{People}{Density}[/tex]
[tex]Density = \frac{360}{0.03}[/tex]
[tex]Density = 12000[/tex]
In ΔFGH, the measure of ∠H=90°, FG = 94 feet, and HF = 73 feet. Find the measure of ∠G to the nearest degree.
Answer:
51
Step-by-step explanation:
(+5)+(-2)+(+20)
solve
Answer:
5(x-2)^2=20
5(x^2-4)=20
5x^2-20=20
5x^2-20-20=0
5x^2-40=0
5x^2+0x-40=0
Step-by-step explanation:
hope this is helpfull
Which fraction is equivalent to 33%? (in simplest fraction form)
334%
A)
M
B)
2.
3
.
Alw
D)
wilw
Answer:
Step-by-step explanation:
33% = 33/100
