Mathematics College

Class intervals in a grouped frequency distribution are given as 4−11, 12−19, 20−27, 28−35, 36−43. Write the next two class intervals.
i) what is the each class interval?
ii) write the class boundaries of all classes?
iii) what are the class marks of each class?​

Class Intervals In A Grouped Frequency Distribution Are Given As 411, 1219, 2027, 2835, 3643. Write The

Answers

Answer 1

Answer:

{44-55}{52- 59 } are the last two interval s

Step-by-step explanation:

To get the class boundaries deduct 0.5 from the first number and add 0.5 to the second number = 4-0.5 = 3.5 = 11.5 + 0.5 = 11.5 = 3.5 -11.5 as in the fish class boundary .same for all other boundaries
Class Intervals In A Grouped Frequency Distribution Are Given As 411, 1219, 2027, 2835, 3643. Write The

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Find the probability that a randomly selected point within the white area r=4

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Answer:

0.25

Step-by-step explanation:

Of the 31 teachers at Keenan's high school, 14 are female. What is the ratio of the number of female teachers to the number of male teachers?​

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Answer:

The answer is 14:17

Step-by-step explanation:

31-14 is 17 and 14 are female and 17 are male so we do 14:17

Find the area. The figures are not drawn to scale.
12.
(1 point)
4 cm
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Answer and step-by-step explanation:

If it is a rectangle, the formula is:

L * W

Fill in the values:

4*6.9

Then solve.

27.6

So, if it is a rectangle, the answer is (C), 27.6 Inches squared.

If it is a triangle, the the formula is:

(B*H)/2

Fill in the values:

4*6.9/2

Simplify:

27.6/2

Then solve.

13.8

So, if it is a triangle, the answer is (A), 13.8 Inches squared

Hope this helps!

Solving a word problem on proportions using a unit rate
Alonzo drove 335 miles in 5 hours.
At the same rate, how long would it take him to drive 469 miles?

Answers

Answer:

7 hours

Explanation:

Divide 5 and 335 then multiply by 469

because 5 / 339 will be time for one mile and then multiply by 469 will be number of hours for 469 miles

5 / 339 × 469 =7 hours

Which of the decimals or fractions is not equal to 0.825 or ?
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O
0.625
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16
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33
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Answers

I'm confused can u tell me the question in comments

PLEASE HELP I NEED HELP NO SCAM LINKS

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Answer:

D

Step-by-step explanation:

Answer:

A - the X intercept will be negative

If you need further guidance, I'm here to help!

~ PumpkinSpice1

6)
(y = -2x + 9
(5x - 2y = 18
yo i need help

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Answer:

use the app photomath

Step-by-step explanation:

Here is the answer you welcome


The radius of a cylindrical water tank is 4.5 ft, and its height is 8 ft. What is the volume of the tank?

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Use the value 3.14 for it, and round your answer to the nearest whole number.
Be sure to include the correct unit in your answer.
15 . Mark me brainliest !!

volume of a cylindrical can of juice is 500cm3 and the diameter of its base is 8 cm find the height of the can of pineapple juice

Answers

Answer:

Height = 2545.45cm

Step-by-step explanation:

Volume of cylinder = pie r^2 h

500 = 22/7*4*4*h

500*7/22*16 = h

2545.45cm = h

If a certain roundabout has diameter of 96 feet,
about how far would a car travel if it drove once
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A. 150.8 feet
B. 301.6 feet
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D. 7,238.2 feet

Answers

9514 1404 393

Answer:

  B.  301.6 ft

Step-by-step explanation:

The circumference of the circle is given by the formula ...

  C = πd

For a diameter of 96 ft, the circumference of the circle is ...

  C = π(96 ft) ≈ 301.593 ft

The car would travel about 301.6 feet.

The product of two consecutive odd integers is 63. If x is the smallest of the integers, write an equation in terms of x that describes the situation, and then find all such pairs of integers.

The equation that describes the situation is __________________
The positive set of integers is _________________
The negative set of integers is _________________

Answers

9514 1404 393

Answer:

x(x+2) = 637, 9-9, -7

Step-by-step explanation:

If x is an odd integer, the next greater odd integer is x+2. The product is said to be 63, so the equation is ...

  x(x +2) = 63

__

The equation can be rewritten as ...

  (x +1)² = 64

  x = -1 ±√64 = -1 ±8

The positive solution is x=7, so the positive set of integers is {7, 9}.

The negative solution is x=-9, so the negative set of integers is {-9, -7}.

find the volume of the cone Diameter:10 m and Height:10m, round to the nearest whole number​

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Answer:

und wey kennen diese Antwort oder Art und Weise nicht, wie Sie sie wahr übersetzt haben

A circle's area is directly proportional to its radius squared.
What is the constant of proportionality (to 2 decimal places)?
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9514 1404 393

Answer:

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Step-by-step explanation:

The formula for the area of a circle is ...

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The constant of proportionality is the constant in this equation: π. To two decimal places, the value of π is 3.14.

The constant of proportionality is about 3.14.

What is it i’m really really really confused about it lollll

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Answer:

it would be D

So, when they say quantities that combine to make 0, that means you have to lose, and then gain the same amount back.

If you look at all the other choices, they either keep on gaining or they don't gain the same amount they lost

Think about it as breaking even.  You aren't actually gaining anything if you are gaining back the exact same amount you lost.

Which statement is true?

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Answer:

[tex] (\sqrt[m]{ {x}^{a} } ) ^{b } = \sqrt[m]{ {x}^{ab} } [/tex]

I will give brainlyist and extra points for correct answer ( no links )

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Answer:

7. 56

8. 117

Step-by-step explanation:

7.

Add the lengths of the sides. Each square on the grid has side 2 units.

9 + 4 + 4 + 8 + 11 + 3 + 2 + 15 = 56

8.

Find the lengths of the bases and the height of the trapezoid. Each square on the grid is 2 units.

Area of trapezoid = (1/2)(b1 + b2)h

area = (1/2)(15 + 11)(9) = 117

Alan has forgotten his 4-digit PIN code. He knows the first digit is odd, and the last digit is a 5. How many different sets of 4 digits could it be?

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Answer:

72

Calculate one by one:

9P2

if t=2, what is √18t?

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Answer:

s

Step-by-step explanation:

5.5~

Answer:

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The length of a rectangle is 13 centimeters less than four times its width. Its area is 35 square
centimeters. Find the dimensions of the rectangle.
The width is
and the length is

Answers

Answer:

width 5

length 7

Step-by-step explanation:

W * L = 35

L = 4 * W - 13

W * (4W-13) = 35

4 W^2 - 13 W - 35 = 0

delta = 169 + 4*4*35 = 729 = 27^2

W = (13 + 27) / 8 = 5 (its the only solution since 13 - 27 is less than 0 which makes no sense)

L = 4 * 5 - 13 = 7

The length and width of the rectangle are 7 cm and 5 cm respectively.

What is a rectangle?

A rectangle is a closed 2-D shape, having 4 sides, 4 corners, and 4 right angles (90°). The opposite sides of a rectangle are equal and parallel.

Given that, the length of a rectangle is 13 cm less than four times its width. Its area is 35 cm².

We know that, the area of a rectangle = length × width

Let the width of the given rectangle be w,

According to question,

length = 4w - 13

Therefore,

(4w - 13) × w = 35

4w² - 13w = 35

4w² - 13w - 35 = 0

Factorizing, we get,

w = 5 and w = -7/4

Therefore, width = 5

Length = 20 - 13

Length = 7

Hence, the length and width of the rectangle are 7 cm and 5 cm respectively.

Learn more about rectangle, click;

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For the data set shown in the scatterplot, what is the BEST approximation of the y-intercept for the line of best fit? A) 0 B) 50 C) 125 D)200​

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Answer:

C) 125

Step-by-step explanation:

If you add a line of best fit, its extension is likely to intersect the y-axis between 200 and 100 but closer to 100.

The best estimate is choice C) 125

Solve using substitution. You MUST find both variables to be crowned brainiest

2x + 4y = 40
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2x+4y=40
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Lines AB and XY are best described as which of the following?
A
BO
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ОООО
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Lines AB and XY best describe the perpendicular segments. The correct option is A.

What is a line segment?

A line segment in geometry is a section of a line that has two clearly defined endpoints and contains every point on the line that lies within its confines.

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

Lines AB and XY best describe the perpendicular segments. AS they are cutting each other at 90 degrees.

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The area of a rectangle is 36x^2 — 100y^2. Determine the length and the width of the rectangle.

Answers

Answer:

the length is represented by (6x + 10y) and the width by (6x - 10y)

Step-by-step explanation:

36x^2 - 100y^2 is the difference of two squares, so we need only factor this expression to obtain the length and width.

Recall that a similar difference, a^2 - b^2, comes out to (a - b)(a + b).

Thus, (36x)^2 = (100y)^2 = (6x - 10y)(6x + 10y).

Let's assume that the greater measurement, the length, is represented by (6x + 10y) and the width by (6x - 10y)

Please help Me ASAP Please

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Answer:

217/31=7. He needs to run 7 miles per day.

Which is equivalent to the series shown?
12
Which expansion is equivalent to the summation
shown?
12
12
20 Σ
1
n=9 n=9
n +
n=9
X
1 1 1 1
20+9+10+11+12+
9 10 11 12
-
Σ (20n +
+
Ź 201n+ )
20
n
n-9
x
1
1
-
1
11
1
12
20(9 + 10 +11+12) +.
9 10
2019 +10 +1
X
1 1 1
20 9+10 +11+12+
9 10 11 12
n +
n-9
12 12
1
12 + 20
n
n=9 n-9
12 12
1
n+
n-9 n=9n
1 1 1
9+10+11+12+ 20
9 10 11 12
20Σ
COMPLETE
Na
Intro
Final

Answers

Answer:

first one is (d) second one is (b)

Step-by-step explanation:

Which one is right can y help me

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Answer:

What are you trying to find out? Like what do you mean by which one is right?

Step-by-step explanation:


Which equation shows the
commutative property of addition?
A 2x = 2x
B 2x + 3 = 3 + 2x
C 2x - 3 = 2(x - 3)
D 2(x + 3) = 2x + 6

Answers

Answer:

B

Step-by-step explanation:

Have a nice day!

The answer is B since you can add in any order with those numbers

What are the ordered pairs of the solutions for the
following system of equations?
(3, [?]); ([ ], [ ])

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Answer:

(3,1) ; (6,-2)

Step-by-step explanation:

We have to search the points that the line and the parabola have in common, that are the points where they intercept

(3,1) ; (6,-2)

How do you balance these Chemical equations?

1.C+ ZnO= Zn+CO2
2.Pb+HCl=PbCl2+H2

Please show your work.

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Answer:Zno C Zn co2

Step-by-step explanation:

C is a reducing agent, ZnO is an oxidizing agent. ; White, odorless solid.

Please solve and show your work. Thank you! I will mark brainiest :)

Answers

Answer:

x=22.5

Step-by-step explanation:

Make a ratio

The names of the triangle help with this.

AB is similar to FG, and AC is similar to FH (the missing side)

6/15 = 9/x

cross multiply

6x=135

divide both sides by 6

x=22.5

Answer:

X=22.5

Step-by-step explanation:

6/9=15/x

135=6x

22.5=X

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