Answer:
Can you explain better? I might be able to solve
Step-by-step explanation:
Answer:
12/2g + 1
12/2(1)+1
12/2+1
12/3
4
Step-by-step explanation:
For a data consisting of 9 observations, the sum of 9 values is 360 and the sum of squares of deviation taken from the mean is 288. Find the mean and variance of the observation.
Answer:
4 ; 32
Step-by-step explanation:
Given that :
Number of observations, n = 9
Let observations = X
ΣX = 360
The mean, (m) is calculated using the formula :
m = ΣX / n
m = 360 / 9
m = 4
Σ(X - m) = 288 (sum of square of deviation )
Variance is calculated using the formula :
[Σ(X - m) / n]
Variance = Sqrt(288 / 9)
Variance = 32
Jasmine is buying cakes for a party. One chocolate cake costs $7, and one lemon cake
costs $5. If Jasmine needs to buy 18 cakes and has $110 to spend, how many lemon
cakes can she buy?
Set up and solve a system of linear equations to model how to determine the number
of lemon cakes Jasmine can buy for the party.
Answer:
Step-by-step explanation: Am not sure if this is the answer you guys are looking for but my in 9th grade and this is how my math teacher taught me how to do it.
one chocolate cake=?=x
one lemon cake=?=y
$270 spent
need to buy total of 18 cakes
1-chocolate cake =$7
lemon cake = $5
cakes 18=x+y
money $110=$7x+$5y
When i graphed it on the demos calculator i got (10,8).
So 10= the number of chocolate cake brought and 4= the number of lemon cake brought
(-∞-)help me help me help me help me help me help me help me help me help me help me help me help me help me help me help me help me help me help me
Answer:
-9
Step-by-step explanation:
Answer: -9
Step-by-step explanation: its just like adding positive numbers, just with negative signs
karl drove 616.7 miles 616.7 miles for each gallon gallon of gas the car can travel 41 miles 41 miles what is a reasonable estimate of the number of gallons gallons of gas karl used select all that apply
Answer:
15, 16 or any integer close to those numbers
Step-by-step explanation:
Since, Karl drove 616.7 miles for each gallon of has and the car can drive 41 miles for each gallon, we need to divided 616.7 by 41 to get an answer of 15.0414634146 or an estimate of 15 or 16. It matters on whether the answer shows.
What is the answer to 22.4 x 1.73
Answer:
38.752
Step-by-step explanation:
SOS NEED NOW
What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26, ...
-6
-4
4
6
Answer:
Step-by-step explanation:
common difference is 6
Zane has of a pie. He keeps a piece for himself and shares the rest equally with 2 friends.
What fraction of the whole pie wil each of the 3 students get?
Answer: 1/3
Step-by-step explanation:
What is the rate of change for y=2x+10
Answer:
its 2
The general rate of change can be found by using the difference quotient formula. To find the average rate of change over an interval, enter a function with an interval
Complete the solution of the equation. Find the value of y when x equals 0. -7x + 3y = 30
Answer:
-7x+3y=30
-7(0)+3y=30
0+3y=30
y=30/3
y=10
Step-by-step explanation:
At a local gardening store, there is a small group of plants located near the gardening
supplies, and the remainder of the plants are arranged in equal-sized rows in the field
behind the store. The function 9(x) = 18x+23 represents the total number of plants at the
gardening store if there are x rows of plants in the field. What is the value of g(27)), the
total number of plants when there are 27 rows?
Answer:
uuuuuuuuu
Step-by-step explauuuuuuuuuuu
The required number of plants from the function is 509 when there are 27 rows.
Given that,
The function g(x) = 18x+23 represents the total number of plants at the gardening store if there are x rows of plants in the field. What is the value of g(27) is to be determined.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
Number of plants,
g(x) = 18x+23
Since the number of rows is 27
Now, the number of plants,
g(27) = 27 * 18 + 23
g(27) = 486 + 23
g(27) = 509
Thus, The required number of plants from the function is 509 when there are 27 rows.
learn more about function here:
brainly.com/question/21145944
#SPJ2
What is the equation of the line in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in
simplest form.
Answer:
equation: y = -6x -20
Step-by-step explanation:
pass (0,-20) (-10,40)
y = mx + b
y intercept (b) = -20
slope (m) = (40 - -20) / (-10 - 0) = 60 / -10 = - 6
equation: y = -6x -20
The bed of a longbed pickup truck measures 4 feet by 8 feet. Which is the length of the longest thin metal bar that will lie flat in the bed?
A 11 ft 3 in.
B 8 ft 9 in.
C 8 ft 11 in.
D 10 ft 0 in.
in the lunch room there were 100 chocolate milk cartons at lunch when lunch was over 88 had been purchased
Answer:
12 left over 100-88=12
The length of a planet's orbit around a star is approximately 29,870,000 km.
It takes the planet about 1670 Earth days to complete a full orbit.
What is the planet's average speed in kmh-' to 3sf?
Answer:
745 k/hr
Step-by-step explanation:
mathematically, 1 day = 24 hours
1670 days = 1670 * 24 = 40,080 hours
The speed is thus;
(29,870,000)/40,080 = 745.259
= 745 km/h
On Monday the average temperature is 15°C in Prague.
The weather forecast shows a drop in temperature by 2°C by the next day.
By the end of the week the temperature is expected to drop even further by 4°C.
What is the temperature, in °C , in Prague at the end of the week?
9+x/3=2
what is x in this equation?
Answer:
-21
Step-by-step explanation:
9 + x/3 = 2
x/3 = -7
x=-21
I hope this helped, and if my answer was right, please mark this as brainliest! Thank you!
division 54 /7.5 plz answer this
Answer:
turn the decimal into a whole number by multiplying by 10, 100 (what you do to one number you must do to the other)
multiply both by 10 it then becomes
540/75 = 7.2
it's easier to divide whole numbers and is the same answer as 54/7.5
Mia wants to rent a paddleboat in Forest Park. The boathouse charges a 7$ fee, plus an hourly rate of 6$. For how long did Mia rent a paddleboat if she paid a total of 43$?
Answer:
6 hours.
Step-by-step explanation:
since the boat house charges 7 dollars we can subtract that from 43
43-7=36
since we have 36 left and the fee per hour is 6 we can devide
36÷6=6
Which of the following is equivalent to 3(x + 5) - 6 ?
Answer:
3x5 is 15, 15-6 is 9
Step-by-step explanation:
Which statement about is true? X = 1 is an extraneous solution. X = 1 is a true solution x = 3 is an extraneous solution. X = 3 is a true solution.
Answer:
x = 3 is an extraneous solution
Step-by-step explanation:
Answer:
Option 3
Step-by-step explanation:
Edg2021
Solve the equation y=x2 −81
Please help I’ll give you brainlist or something
Answer:
G is 4,2 f − 1 ( x ) = x 5 + 2 5
Step-by-step explanation:
WILL GIVE BRAINLIEST PLZ HURRY
Caesar gets coffee from his local coffee shop when he has time in the morning. The coffee shop sells a ceramic refill mug for $8.95. Each refill costs $1.50. Last month Caesar spent $26.95 on a mug and refills.
Write an equation that you can use to find the number of refills Caesar purchased.
a.8.95r + 1.50= 26.95
b.8.95 + 1.50r= 26.95
c8.95 + 1.50 = 26.95r
How many refills did he buy? Solve the equation
Solve the equation 6(x + 2) = 3(2x + 4).How many solutions are there? Show your work
function or not a function?
Answer:
Not a function.
Step-by-step explanation:
There must only be one output per input but here we see the input 18 has two outputs ; 3 and 15 therefore this is not a function.
£600 is invested into a savings account paying
5% compound interest per year. How much is in
the account after three years
Answer:
£694.575
Step-by-step explanation:
Using the formula for calculating the compound interest expressed as;
A = P(1+r)^t
P is the principal = £600
r is the rate = 5% = 0.05
t is the time = 3 years
Substitute into the formula;
A = 600(1+0.05)^3
A = 600(1.05)^3
A = 600(1.157625)
A = 694.575
hence the amount in the account after 3 years is £694.575
If the perimeter of a square is 4x - 24, what is the
area of the square?
Answer:
A = (x - 6)² sq. units or
A = (x² - 12x + 36) sq. units
Step-by-step explanation:
P = 4s, where s is the side.
4s = 4x - 24
s = x - 6
A = s²
A = (x - 6)² sq. units or
A = (x² - 12x + 36) sq. units
pls help me with this. im begging you!
Answer:
the top is 4* then the other two would have to evenly add up to 86=43
Step-by-step explanation:
Francas leaves home to go to the arcade and walks 300 m at a constant speed for 15 minutes. Francas sees a swarm of bees and runs for 10 minutes slowing down gradually because he is out of breathe. He stop at a bench 450 m away from his house. Francis sits and rest for 5 minutes. Francis continue on his trip to the arcade, quickly walking 250 m at a constant speed for 10 minutes. Create a distance time graph for the following story.
Answer:
it wont let me write the graph
Step-by-step explanation:
Algebra 2-Which of the following is a like radical to .......
Answer:
A
Step-by-step explanation:
Like radicals are radicals that have the same root number and radicand (expression under the root)