Answer: The temperature on the fifth day is -14°C
Step-by-step explanation:
When we have a set of N elements, that can be written as:
{a₁, a₂, ..., aₙ}
The mean of these N elements is be written as:
Mₙ = (a₁ + a₂ + ... + aₙ)/N
Now, when we take in account the temperature for the first four days of January, we will have a set of 4 elements, {a₁, a₂, a₃, a₄}
Where each one of these elements represents the temperature of one particular day.
The mean temperature for the first four days will be:
M₄ = (a₁ + a₂ + a₃ + a₄)/4
And we know that this is equal to 4°C
Now we also could do the next replacement:
(a₁ + a₂ + a₃ + a₄) = T
Then we can write:
M₄ = -4°C = (a₁ + a₂ + a₃ + a₄)/4 = T/4
Then we can solve:
-4°C = T/4
-4°C*4 = T
-16°C = T
This is the sum of the temperatures for the first four days of January.
Now we know that the mean for the first five days is -6°C
Then we have:
M₅ = (a₁ + a₂ + a₃ + a₄ + a₅)/5 = -6°C
Where a₅ is the temperature on the fifth day of January, which is the value we want to find.
And we know that:
a₁ + a₂ + a₃ + a₄ = -16°C
We can replace that in the equation to get:
(-16°C + a₅)/5 = -6°C
(-16°C + a₅) = 5*(-6°C) = -30°C
a₅ = -30°C + 16°C = -14°C
a₅ = -14°C
The temperature on the fifth day is -14°C
What’s the area of this parallelogram
Answer:
20 in.
Step-by-step explanation:
To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.
Estimate: 28 2/3 × 4/5 as a fraction
A. 14
B. 20
C. 29
D. 40
Answer:
B because the answer would be 22 14/15
Lee bought a light bulb online. It cost $1 plus 10% shipping and handling. What was the total cost?
someone actually help please!!! how much is 7/9 of -3/14
Answer:-0.16666666666
Step-by-step explanation:
plzzzzz guys help emergency plz really I got problem
if you do jpt then I will report
Answer:
[tex]let \: their \: points \: of \: intersection \: be \to \: x \\ since : \\ \: \overline{MN} \: intersects \: \overline{QL} \: at \: point \: x : \\ and\\ \overline{QL} \: also \: meets \: \overline{MN} \: at \: point \: x : \\ hence \: \overline{QL}\: and \: \overline{MN} \: bisects \: each \: other.[/tex]
Please help me solve this.
The perimeter of this shape is 40cm
Calculate the value of x
Answer:
x = 8
Step-by-step explanation:
The perimeter (P) is calculated as
P = 2(l + b) ← l is length and b is breadth
Here l = 12 and b = x , P = 40, then
2(12 + x) = 40 ( divide both sides by 2 )
12 + x = 20 ( subtract 12 from both sides )
x = 8
(7-6) + (-10n + 8)
I really need help on this
Answer:
7+10n
Step-by-step explanation:
solve both sides
-1 + -10n +8
solve again
move 8 over to it and add it to -1
7 +10n,
if I'm wrong someone please point it out.
WHAT??? HELP ME PLEASE///8TH GRADE MATH
Answer:
put angel sum property on it
Step-by-step explanation:
39 + 73 + x = 180
112 + x = 180
x = 180 - 112
x = 68
put degree sign over it
Hope its help you
Which of the following shows how the distributive property can be used to find -22(1.5)?
-22(-1) + -22(-0.5)
22(1) + 22( 0.5)
-22(1) + -22(0.5)
-22(0.75) + -22(-0.75)
Answer:
the last one
Step-by-step explanation:
ANSWER
C) -22(1) + -22(0.5)
Round 472.529996081 to the nearest ten.
Answer:
470
Step-by-step explanation:
-1 = -3(3r - 8) - 7. what does r equal?
Answer:
R=2
Step-by-step explanation:
Avery buys a sandwich for$7.69,a soft drink for $2.75,and a bag of chips for $1.25.How much money did he spend in all
Answer:
11.69
Step-by-step explanation:
7.69+2.75+1.25=11.69
What is 4080.2679 rounded to the nearest thousandth? O A. 4080.270 O B. 4080 O C. 4080.268 O D. 4000
Answer:
C: 4080.268
Step-by-step explanation:
please solve thank you thank you
Answer:
arc 1 = 100 degrees
angle 2 = 50 degrees
Step-by-step explanation:
arc 1 = 2(50) (arc = 2 x inscribed angle)
arc 1 = 100 degrees
angle 2 = 1/2 arc 1 = 50 degrees
Please help on 19 / what is a nonlinear function answer soon and I give as many points as possible
Answer:
Step-by-step explanation:
B is a geometric progression. Not linear.
DUE SOON HELP PLEASE Choose the set of ordered pairs that would match a 180° clockwise rotation.
Answer:
The answer is C.
Step-by-step explanation:
Plsssss help me I need help with this
Answer:
B 2.5
Step-by-step explanation:
10 x 2.5 = 25
6 x 2.5 = 15
Answer:
D
Step-by-step explanation:
If the m angle 5 is 63 , find the measure of angle 3.
Answer:
Hey this isn’t the answer, sorry
Step-by-step explanation:
I just need this answer to so let me know if you get the answer Thank you
Answer:answer is 117
Step-by-step explanation:
N/A
graph the solution on the number line x+8 ≥ 5
Answer:
For the inequality to be true, both factors must have the same sign or one factor must be 0. The zeroes occur at x = − 2 , x = 5 . Thus, our intervals will be ( − ∞ , − 2 ] , [ − 2 , 5 ] , [ 5 , ∞ ) Take a sample point from each. A sample point of − 3 for the first interval yields ( − 3 + 2 ) ( − 3 − 5 ) = ( − 1 ) ( − 8 ) = 8 , so the first interval satisfies the inequality. Choosing a sample point of x = 0 for the second interval, we receive ( 2 ) ( − 5 ) = − 10 , so this interval will not satisfy the equality. A sample point of x = 6 for the third interval gives us ( 8 ) ( 1 ) = 8 , so the third interval satisfies. Thus, the domain that satisfies the inequality is ( ∞ , − 2 ] & [ 5 , ∞ ) On the number line , you would draw and fill in a circle above -2, and draw an arrow from that point to the left. You would then draw and fill in a circle above 5, and provide a similar arrow to the right (i.e. towards positive infinity). We fill in these circles because the intervals are closed at these points, i.e. these points satisfy the inequality. If we instead had ( x + 2 ) ( x − 5 ) > 0 , the circles would be empty because those points would not satisfy.
There are 9 employees at a corporate retreat, but a particular team building exercise requires only 2 people, each playing a different role. How many ways are there to select 2 employees and assign them to the roles?
Answer:
P(9,2) = 72
Step-by-step explanation:
Some please help, Does anyone know this answer!
Answer:
Acute
Step-by-step explanation:
Will get brainliest if correct
Answer: 119°
Step-by-step explanation:
∠FAE + ∠CAF = ∠BAD (Vertical angles)
62° + 57° = 119°
∠BAD = 119°
Renee bought 6 tickets to a football game. She paid a total of $216. Write an equation to represent the situation
Answer:
6 × 36 = 216
Step-by-step explanation:
one ticket price: 216 ÷ 6 = $36
Write the equation of the line that goes through (9,-4) and is perpendicular to the line
y = -3x – 8
Answer: y = (1/3)*x - 7
Step-by-step explanation:
When we have a line:
y = a*x + b
A perpendicular line to this one needs to have a slope s equal to:
s = -(1/a)
Then any line written as:
y = -(1/a)*x + c
is perpendicular to the lines of the form "y = a*x + b"
Then if we have the line:
y = -3*x - 8
The family of perpendicular lines to this one is:
y = -(1/-3)*x + c
y = (1/3)*x + c
where c can be any real number.
Now we also want that this line passes through the point (9, -4)
Then we need to replace x by 9, and y by -4
-4 = (1/3)*9 + c
Now we can solve this for c.
-4 = 9/3 + c
-4 = 3 + c
-4 - 3 = c
-7 = c
Then the line that is perpendicular to the line y = -3x – 8 and that goes through (9, -4) is:
y = (1/3)*x - 7
what is the ratio for the
Answer:
15/17
Step-by-step explanation:
the cosine is the adjacent divided by the hypotenuse. The adjacent of a is 15 and the hypotenuse is 17 so the ratio is 15/17
Hope this helps and have a good day :)
iTS been increased by 39%
Answer:
Step-by-step explanation:
Let 'x' be the original price.
x + 39% of x = 197.38
x + 0.39 x = 197.38
1.39x = 197.38
x = 197.38/ 1.39
x = 142
Answer:
£120.40
Step-by-step explanation:
76.9782=76.98
197.38-76.98=120.40
Rajesh says that the expression
-5(-x - 8) is equivalent to the expression
5x + 40. Is Rajesh correct?
WOULD SOMEONE TELL ME PLEASE !!
Answer:
A and C
Step-by-step explanation:
alternate-exterior angles need to have one angle above the first line and the other angle below the second line and the angles have to be on different sides of the transversal
the point (-6, 8) is reflected across the the x-axis. What are the coordinates of the reflection?
Anwser:the reflection of (-6, 8) in the y axis will be (6,8)
Step-by-step explanation:
the point (-6, 8) when reflected in the y axis will have the same y coordinate but it x coordinate will be the opposite of the x coordinate of the original point, therefore the reflection of (-6, 8) in the y axis will be (6, 8) hoped that help?
