will giver brainliest to the person with the most detailed answer. That means tell me how you got ur answer. And the person who answers with the most clear explanation as well. Good luck!! This is due in 8 minutes as well. And pls number ur answers in order so it is clear!!

   Submarine must descend by 12 feet in the fifth minute.

From the table given in picture,

Let the distance descended by submarine in 5th minute = x feet

Average distance descended by the submarine = \(\frac{\text{Total distance distended}}{\text{Duration or time}}\)

                                                                                = \(\frac{8+10+8+12+x}{5}\)

                                                                                = \(\frac{38+x}{5}\) feet per minute

Statement given in the question → "Submarine must descend at an average rate of at least 10 feet per minute"

So the inequality for the statement will be,

\(\frac{38+x}{5}\geq 10\)

38 + x ≥ 50

x ≥ 50 - 38

x ≥ 12

    Therefore, submarine must descend 12 feet in the 5th minute.

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Answer:

this is the simplest form

Step-by-step explanation:

since there is a variable in the fraction, you can't simplify it any further until we know that term.

Answer:

-7y/2

Step-by-step explanation:

-7y/2 cannot be simplified any further as there are no common factors of -7y and 2

Answer:

x= 13/22

Step-by-step explanation:

you can substitute y= 34 x on the second equation

34x = -54x +52  add 54x to both sides

34x +54x  = -54x +54x +52

88x = 52  divide both side by 4

22x = 13  divide both sides by 22

x= 13/22

Answer:

The answer is B

answer should be b because only Gypsy can found ın drywals

The length 'l' of the rectangle will be;

⇒ l = 18 feet

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

The rectangle and the trapezoid have the same area.

Now,

Since, The rectangle and the trapezoid have the same area.

Hence, We get;

Area of rectangle = l × 9

And, Area of trapezoid = 1/2 (24 + 12 ) × 9

                                   = 1/2 × 36 × 9

                                   = 18 × 9

                                   = 162

So, We get;

⇒ l × 9 = 162

⇒ l = 162/9

⇒ l = 18 feet

Thus, The length 'l' of the rectangle will be;

⇒ l = 18 feet

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#SPJ2

Answer: B (population is total number of people who go to the mall, and sample is first 75 people at the mall)

Step-by-step explanation:

The question is only talking about the people who go to the mall (population), but the sample is specifically the first 75 people. This is because the survey was only asked to these random 75, so it is the sample.

\(\dfrac{5^{10}}{5^{12}}=5^{10-12}=\huge\boxed{5^{-2}}\\\\\\a^m:a^n=a^{m-n}\)

Answer:

your are correct

Step-by-step explanation:

i don't fell like geting brainlyest so the person who answer this question first can have it

Answer:

22.5 km

Step-by-step explanation:

hello,

the car travels 45 km in 1 hour

so in 1/2=0.5 hour it travels 45/2=22.5 km

hope this helps

Answer:

22.5km

Step-by-step explanation:

speed=distance/time taken

distance=45*0.5

=22.5km

Answer:

1. 9, 4

2. 46, 10

3. 18, 14

4. 10, 14

5. 17, 32

6. 5, 7

7. 3, 70

8. 3, 20, 10

9. 7, 16

10. 7, 5

11. 9, 120

12. 12, 1

Step-by-step explanation:

Definition of coefficient. Your welcome :)

Answer:

f(x) = a(x - h)2 + k

Step-by-step explanation:

a not equal to zero, is said to be in standard form. If a is positive, the graph opens upward, and if a is negative, then it opens downward. The line of symmetry is the vertical line x = h, and the vertex is the point (h,k).

The surface area of a cylinder can be found by adding the areas of the top and bottom circles, as well as the area of the side (lateral) surface.

The radius of the cylinder is 1 and one fourth centimeters, which can be written as 5/4 cm. The height of the cylinder is 3 and three fourths centimeters, which can be written as 15/4 cm.

The area of each circle is πr^2, where r is the radius. So, the area of the top and bottom circles is:

2π(5/4)^2 = 25/2 π square centimeters

The lateral surface area of a cylinder is given by the formula 2πrh, where r is the radius and h is the height. So, the lateral surface area of the cylinder is:

2π(5/4)(15/4) = 75/2 π square centimeters

Therefore, the total surface area of the cylinder is:

25/2 π + 75/2 π = 100/2 π = 50 π square centimeters

So, the exact surface area of the cylinder in terms of π is 50π square centimeters. None of the given options matches this answer.

Answer:

3: 200, 200

4:800

5:400

Step-by-step explanation:

:)

Answer:

3, 175 by 300.     4, 950.     5, 52,500

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

15% of 140 = 21

Answer:

The slope is 29 mm.

Step-by-step explanation:

What we know:

The radius of this cone is 20 mm, and the height is 21mm

s = √r^2 + h^2

s = √20^2 + 21^2

s = √400 + 441

s = √841

s = 29 mm

Volume of cone

V = Volume of cone =

r = Radius of cone = 20 mm

h = Height

s = Slant height.

Answer:

CFD and DFE

Step-by-step explanation:

Supplementary angles are 2 angles that equal 180 degrees.

Answer:

angles EFB and BFC

angles CFD and DFE

Step-by-step explanation:

Both pairs of angles are supplementary because they are adjacent and have a sum of 180 degrees

Answer:

no bro, sorry. even though I needed to I don't have it

The probability of drawing two red playing cards in succession from a preferred deck of playing cards is 1/4

The opportunity of drawing a red card on the first draw is 26/52 because there are 26 red cards out of a complete fifty-two playing cards.

Since the first card is replaced, the deck remains the same for the second draw. Therefore, the probability of drawing a red card on the second draw is likewise 26/52.

To calculate the probability of two unbiased occasions going on, we multiply the possibilities of each occasion together:

P(2 cards are red) = (26/52) * (26/52)

Simplifying:

P(2 cards are red) = (1/2) * (1/2)

P(2 playing cards are red) = 1/4

Therefore, the probability of drawing red playing cards in succession is 1/4.

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y=−40

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4−y5=2−2y8

4+−15y=2+−14y

−15y+4=−14y+2

Step 2: Add 1/4y to both sides.

−15y+4+14y=−14y+2+14y

120y+4=2

Step 3: Subtract 4 from both sides.

120y+4−4=2−4

120y=−2

Step 4: Multiply both sides by 20.

20*(120y)=(20)*(−2)

Answer:

y=−40

Answer:

y= -40

Step-by-step explanation:

4 - y/5 = 2 - 2y/8

4 - y/5 = 2 - y/4

4 x 20 - y x 20/5 = 2 x 20 - y x 20/4 (reduce the fractions)

4 x 20 - 4y = 2 x 20 - 5y

80 - 4y = 2 x 20 - 5y

80 - 4y = 40 - 5y

-4y + 5y = 40 - 80

y = 40 - 80

y = - 40

Answer:

a.

i) & ii) -> See Explanation Below

a.

iii) \(y = 6\) and \(x = 12\)

b.

i) \(Median = 7\)

ii) \(Mode = 10\)

Step-by-step explanation:

Given

Number of pets: 2 , 4, 6, 8, 10

Number of students: x, 2, y, 6, 14

Total students = 40

Required

a) (i) show that x+y=18

Given that total number of students is 40;

This implies that

\(x + 2 + y + 6 + 14 = 40\)

Collect like terms

\(x + y = 40 - 14 - 6 - 2\)

\(x + y = 18\)

a) (ii) If the mean of the distribution is 6.4, show that x +3y =30

The mean of a distribution is calculated as thus

\(Mean = \frac{\sum fx}{\sum x}\)

\(\sum fx}\) is gotten by multiplying number of pets by corresponding number of students

\(\sum fx} = 2 * x + 4 * 2 + 6 * y + 8 * 6 + 10 * 14\)

\(\sum fx} = 2 x + 8 + 6y + 48 + 140\)

\(\sum fx} = 2 x + 6y + 48 + 140+ 8\)

\(\sum fx} = 2 x + 6y + 196\)

\(\sum x}\) is the total number of students

\(\sum x} = 40\)

So;

\(Mean = \frac{\sum fx}{\sum x}\) becomes

\(Mean = \frac{2 x + 6y + 196}{40}\)

Substitute 6.4 for Mean

\(6.4 = \frac{2 x + 6y + 196}{40}\)

Multiply both sides by 40

\(256 = 2 x + 6y + 196\)

Subtract 196 from both sides

\(256 -196= 2 x + 6y + 196-196\)

\(60= 2 x + 6y\)

Divide both sides by 2

\(\frac{60}{2}= \frac{2 x}{2} + \frac{6y}{2}\)

\(30 = \frac{2 x}{2} + \frac{6y}{2}\)

\(30 = x + 3y\)

Reorder

\(x + 3y = 30\)

a) (iii) Hence, find the value of x and of y

Using

\(x + y = 18\) and

\(x + 3y = 30\)

Subtract both equations

\((x + y = 18) - (x + 3y = 30)\)

\(x - x + y - 3y = 18 - 30\)

\(y - 3y = 18 - 30\)

\(-2y = -12\)

Divide both sides by -2

\(\frac{-2y}{-2} = \frac{-12}{-2}\)

\(y = \frac{-12}{-2}\)

\(y = 6\)

Substitute 6 for y in \(x + y = 18\)

\(x + y = 18\) becomes

\(x + 6 = 18\)

Subtract 6 from both sides

\(x + 6 - 6 = 18 - 6\)

\(x = 12\)

b.

i) Calculate the Median

First, we need to tabulate the given data properly

Number of Pets ------ Number of students ------- Cumulative Frequency

2 ------------------------------12 -----------------------------------12

4 ------------------------------2 -----------------------------------14

6 ------------------------------6 -----------------------------------20

8 ------------------------------6 -----------------------------------26

10 ------------------------------14 -----------------------------------40

Since the number of pets is already arranged in ascending order,

the next step is to calculate the median element

Number of students = 40

\(Median = \frac{40}{2}\)

Median = 20

Given that number of students (40) is an even number,

The median is the average of the 20th and 21st element

From the table above; the median can be gotten from

6 ------------------------------6 -----------------------------------20

8 ------------------------------6 -----------------------------------26

The 20th element = 6

The 21st element = 8

\(Median = \frac{6 + 8}{2}\)

\(Median = \frac{14}{2}\)

\(Median = 7\)

ii) Mode

The mode is the corresponding data with the highest frequency

The highest frequency is 14;

The number of pets with frequency of 14 is 10

Hence,

\(Mode = 10\)

Answer:

i this its no

Step-by-step explanation:

she will need 217 square feet of paint

i think

Answer:

enough

Step-by-step explanation:

she will paint 114 square feet

Answer:

2.4,5.0

Step-by-step explanation:

Answer: the answer will be A. and C.

Step-by-step explanation:

Answer: None of them are a function

Step-by-step explanation: they don't relate

Answer:

Clue 1) This is chronological order.

What is the ratio of triangles to circles in each row below:

H: 2:3

O: 4:1

N: 2:1

What is the ratio of shoes to caps in each row below:

S: 1:2

A: 3:2

B: 1:3

What is the ratio of cubes to total shapes in each row below:

I: 3:2

M: 2:4

T- 1:3

E-4:2

Y: 2:3

What is the ratio of circles to total shapes in each row below:

U: 2:2

V: 3:5

C: 1:4

L: 4:1

G: 1:5

Clue 2) This is in chronological order.

O: 10, S: 4, T: 70, K: 12, I: 30, C: 22.5, E: 35, M: 54, D: 104, A: 63, W: 9, G: 15, R: 60, F: 19, N: 32, B: 81, H: 46

Phrase: THE ROGUE'S MASK WAS FOUND WITH TRACES OF BROWN HAIR

Step-by-step explanation:

Ratios) You must look in the question, to find which shape is which.

Example: There are 5 circles and 2 triangles. What is the ratio of both triangles and circles?

Answer: 2:5

Clue 2) Divide each question

Answer:

2.45

Step-by-step explanation:

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Answer: w>-2

Step-by-step explanation

Answer:

The answer is A

Step-by-step explanation:

D. $4.80÷16=$.30

C. $4.10÷10=$.41

B. $3.20÷8=$.40

A. $3.20÷7=$.45

169/2 = 84.5

125/3=-41

Answer:

Problem one:

let the variable be x:

\({ \tt{2x = 169}}\)

• apply division property of equality:

\({ \tt{ \underline{ \: \: x = 84 \frac{1}{2} \: \: }}}\)

Problem two:

let the variable be y

\({ \tt{3y = - 125}}\)

• apply division property of equality:

\({ \tt{ \underline{ \: \: x = - 41.67 \: }}}\)