The mean temperature for the first 4 days in January was -4°C. The mean temperature for the first 5 days in January was -6°C. What was the temperature on the 5th day? Pls help

Answers

Answer 1

Answer:

-14°C

Step-by-step explanation:

Given that,

The mean temperature for the first 4 days in January was -4°C.

The mean temperature for the first 5 days in January was -6°C.

Mean = sum of observations/no. of observations

For first 4 days,

[tex]-4=\dfrac{S_4}{4}\\\\S_4=-16\ ...(1)[/tex]

For first 5 days,

[tex]-6=\dfrac{S_4+T}{5}\\\\S_4+T=-30\ ..(2)[/tex]

Let the temperature on 5th day is T. So,

Put S₄ = -16 in equation (2).

-16 + T = -30

T = -30+16

T = -14°C

So, the temperature on the 5th day is -14°C.


Related Questions

Please help, it would mean the world

Answers

1. 12x+ 21
2.88x-33
3.-15x+(-10)

Which absolute value expression represents the distance between 3 and
9 /2
on a number line?
A) |3 −
9
2
|
B) |3 − (−
9
2
)|
C) |−3 + (−
9
2
)|
D) |−3 −
9
2
)|

Answers

I think it’s A , 9 2 1

Can u pls help me with this question

Answers

Answer:

20.5 ounces

Step-by-step explanation:

11.5+2.25s=?

11.5+2.25(4)=

PLS HELPPP I WILL GIVE U A GOOD REVIEW AND BRAILLIETS



Find the slope and the y-intercept of the line in the graph.
6 G
4
3
2
1
0
-1
-2
-4
-5
6
-9
-9 8 7 6 5 4
-2 -1 0 1 2
The slope is
The y-intercept is

Answers

Answer:

slope=1  y-intercept=5

Step-by-step explanation:

there isn't much to it, but if you want me to show my work I will

can someone help please?

Answers

x=54 is the final answer

Answer:

x = 54

Step-by-step explanation:

In this line, I am going to assume lines l and m are parallel.

Each flat surface is half of a circle, therefore it has 180 degrees. We are given one side and told to find the other.

180 - 116 = 64.

The other angle's total value must be 64.

Now, to solve for x, subtract 10 from 64 [inverse operations].

64-10=54

The value of x in this equation is 54 degrees.

HELP ASAP !! I have trouble with this

Answers

Answer:

x= 0.7227 in radians

x= 41.4096 in degrees

Step-by-step explanation:

cos(x) = 6/8

(3mtr?)"
Which expression is equivalent to
3? Assume m+0.160
(2m2n)
O2m2n5
81m2n5
8
O2mn2
81mn?
8

Answers

Answer:

81mn

Step-by-step explanation:

3 to the power of 3 is 81

Solve
15x +4< 26.5
Need help fast pls

Answers

Answer:

x<1.5

explanation: move 4 to other side subtract it with 26.5 then divide it by 15

Answer:.

.

Step-by-step explanation:

need help ppl
answer needed asap ​

Answers

Answer:

Step-by-step explanation:

Estimate the circumference of the following circles:
d = 10cm
r = 7 cm
d = 15 m

Answers

Answer:

43.98

Step-by-step explanation:

Circumference= 2πr

so it would be 2x3.14x7=43.98

Answer:

1. 31.42cm

2. 43.98cm

3. 47.12cm

Step-by-step explanation:

Multiply the diameter by pi,

Since the radius is just half of the diameter, make it 14 then multiply by pi

four thousand three hundred twenty-one ten thousandths as a decimal​

Answers

Answer:

.4321

Step-by-step explanation:

move the decimal to the left four times

We want to write four thousand three hundred twenty-one ten thousandths as a decimal​.

The number is:

4321.010

To do it, we need to understand what each place value represents, where the place values are the place of each digit in reference to the decimal point.

The first digit at the left of the decimal point represents the units.The second digit at the left of the decimal point represents the tens.The third digit at the left of the decimal point represents the hundreds.The fourth digit at the left of the decimal point represents the thousands.

And for the right we have:

The first digit at the right of the decimal point represents the tenths.The second digit at the right of the decimal point represents the hundredths.The third represents the thousandths.

Of course, it continues in both ways, but this is enough to write our number.

We have:

"four thousand..."

Then the fourth digit at the left is a 4.

"... three hundred..."

The third digit is a 3.

"...twenty-one..."

The second digit is a 2, and the first is a 1.

For the right side, we do not have tenths, so the first digit at the right is a zero.

And "...ten thousandths"

We have a "10" in the second and third digits at the right of the decimal point.

Then our number is:

4321.010

If you want to learn more, you can read:

https://brainly.com/question/16552177

A triangle’s base is 3 feet longer than twice its height, h. To create a new triangle, the base is decreased by 4 feet, and the height is increased by 2 feet. Which expression represents the area of the new triangle?

Answers

Answer:

area of the triangle =

[tex] \frac{(x - 4) \times (y + 2)}{2} [/tex]

let base be x and height y

hope it helped

PLS mark BRAINLIEST

Answer:

let height be x

base =2x+3

for new

height =x+2

base=2x+3-4=2x-1

area of new triangle=1/2_newbase×height

=1/2 (x+2)(2x-1) is required expression

Samuel bought snacks for his team's practice. He bought a bag of chips for $2.81 and
a 15-pack of juice bottles. The total cost before tax was $25.01. How much was each
bottle of juice?

Answers

Answer:

Each juice cost $1.48

help with question 20 DUE IN 10 mins

Answers

Question 20 is 2/11 i believe

Which expression is equivalent to 2a^2b^11/5c^5

Answers

Answer:

The measure of angle JKL is 97 degrees.Apr 12, 2020

Step-by-step explanation:

The measure of angle JKL is 97 degrees.Apr 12, 2020

Solve the system of equations. What is the solution?
10x – 4y = 12
5x + 2y = 14

Answers

Answer is 2

Step-by-step explanation:

2i^20 + i^42
i^101 - i^2

Show Work

Answers

I assume you're talking about a fraction,

(2i ²⁰ + i ⁴²) / (i ¹⁰¹ - i ²)

Remember that i ² = -1; from this it follows that

i ³ = i ² × i = -i

i ⁴ = i ³ × i = (-i ) × i = -i ² = -(-1) = 1

i ⁵ = i ⁴ × i = i

i ⁶ = i ⁵ × i = i ² = -1

and so on. In particular, raising i to some integer multiple of 4 reduces to 1.

Using the above pattern, we find

i ²⁰ = 1

i ⁴² = i ⁴⁰ × i ² = 1 × (-1) = -1

i ¹⁰¹ = i ¹⁰⁰ × i = 1 × i = i

So, we have

(2i ²⁰ + i ⁴²) / (i ¹⁰¹ - i ²) = (2 - 1) / (i - (-1)) = 1 / (i + 1)

We can stop here, but usually it's more useful to have complex numbers written in standard a + bi form. To get this result, multiply the numerator and denominator by the complex conjugate of i + 1:

(2i ²⁰ + i ⁴²) / (i ¹⁰¹ - i ²) = 1 / (i + 1) × (-i + 1) / (-i + 1)

… = (-i + 1) / (-i ² + 1²)

… = (-i + 1) / (-(-1) + 1)

… = (1 - i ) / 2

or equivalently,

… = 1/2 - 1/2 i

im confused abt the answer above mine

Answers

I'm not sure what you're asking.

Answer:

your welcome for the answer

Step-by-step explanation:

I was never told how to do this, i need help

Answers

Answer:

nember 1: 2/7 as decimal

number 2: 2 1/6 as decimal

number 3: 3/16 as a decimal

number 4: 3/4 as a decimal

number 5: 5/10 as a decimal

number 6: 13 7/8 as a decimal

number 7: 8 10/15 as a decimal

number 8: 5/8 as a decimal

PLEASE HELP!!!!This table shows the temperature change in these
places from 1960 to 2014.
Enter the missing values.

Answers

Answer:

50/52/2

85/87/(2)

-6/-3/(3)

(-13)/12/1

Answer:

answer below

Step-by-step explanation:

Antarctica ( average temperature in 1960 Fahrenheit) = -11

Khartoum, Sudan ( change from 1960 to 2014 Fahrenheit) = 2

Greenland ( change from 1960 to 2014 Fahrenheit) = 3

3. A box of oranges weighs 4 kg. If one orange weighs 80 g, how many oranges are in the box?

Answers

Answer: 50 oranges

Step-by-step explanation:

1 kg = 1000 g - 4 kg = 4000 g 4000g/80g= 50 (This gives the number of oranges in the box since each orange weighs 80 grams.)

Can somebody please help me !!!!!!!!!47$4&

Answers

Answer:

30 celsius

Step-by-step explanation:

(86°F − 32) × 5/9 = 30°C

its 30 celsius! hope this helps:)

1
Note: Figure is not drawn to scale.
If h = 9 units and r = 6 units, then what is the volume of the cone shown above?
OA. 162 cubic units
ОВ.
1087 cubic units
C. 81 cubic units
OD. 324 cubic units
Reset
Submit
0 of 15 Answered
Session Timer: 0:25
Sessio
I
O Type here to search

Answers

Answer:

108π

Step-by-step explanation:

1/3 × 9 × π × (6²)

1/3 × 9π6²

(1 × 9π6²) / 3

(6² × 9π) / 3

6² × 3π

36 × 3π

108π

Someone plz help me giving brainliest

Answers

Answer:

13/20

Step-by-step explanation:

Add up all the hours and then subtract by the total hours given.

There are 12 inches per foot. How many feet is 96 inches? Enter only the number.

Answers

8, the answer needs to be more than a certain amount of characters.
8 feet is the correct answer!But just enter 8 when you put in the answer. Otherwise, you'll get it wrong.96 ÷ 12 = 8Please let me know if I am wrong.

Pls help me I’ll give out brainliest please dont answer if you don’t know

Answers

Step-by-step explanation:

x=-10 is ur answer try it!

Answer:

2x=-20 or simplified version x=-10

Step-by-step explanation:

-8+3x=12+5x

   -3x.      -3x

-8 = 12+2x

-12=-12+2x

-20=2x

x=-10

Can anybody help me with these, they're awfully confusing.

Answers

Answer:

20) a) 6.8 b) 7

21) a) 26.2 b) 26

22) a) -7.8 b) -8

23) a) -10.2 b) -10

24) a) 2.6 b) 3

25) a) -12.9 b) -13

9) Real number

10) Real number

11) Real number

12) Real number

13) Real number

14) Real number

15) Not a real number

16) Real number

Explanation

In order to find the estimated integer of a square root, you simply find the perfect squares closest to the specified square root. For example, the closest perfect squares to [tex]\sqrt{46}[/tex] are [tex]\sqrt{36}[/tex] and [tex]\sqrt{49}[/tex]. Now, we need to find which perfect square is the closest between those two. 46 and 36 have a difference of 10, while 46 and 49 have a difference of 3. So, we know that 49 is the closest perfect square. Now, we simplify

last question and i can play D. I. E

Answers

Answer:

Choice B

Step-by-step explanation:

6x + 4x^4 - 3x^2 + 7x^4 + 5x^2 + 8x

combine like terms

6x + 8x = 14x

4x^4 + 7x^4 = 11x^4

3x^2 - 5x^2 = 2x^2

14x + 11x^4 + 2x^2

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

Answer:

11x4 + 2x4 + 14x (Cyan Answer)

I NEED HELP ASAP ASAP!
PLEASE HURRY AND ANSWER QUICKLY AND CORRECTLY ITS WORTH 50% OF MY GRADE!!!

Answers

Answer:

$16

Step-by-step explanation:

What is the circumference of a circle?

Your answer:

The width of a circle


The distance around a circle


The space inside of a circle

Answers

Answer:

2

Step-by-step explanation:

the distance around a circle

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