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3 years ago

The histogram shows the results of a survey asking students how many windows are in their homes.

Mathematics

1 answer:

Aneli [31]3 years ago

8 0

Answer:

Step-by-step explanation:

5 to 9 = 11

0 to 4 = 9

11 + 9 = 20.

hope this helps

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Nine less than the product of 2 and number is equal to 7

user100 [1]

Answer:

x = 8

Step-by-step explanation:

Step 1: Write an equation

2x - 9 = 7

Step 2: Use the Addition Property of Equality

2x = 16

Step 3: Use the Division Property of Equality

x = 8

5 0

3 years ago

Read 2 more answers

Help please<br> will give brainliest

FromTheMoon [43]

The tangent line is perpendicular to the radius from the center of the circle to the point of tangency.
ΔDCE is similar to ΔDBA
DC/DB=DE/DA
15/50=DE/40
DE=12

3 0

3 years ago

The quotient of b and 2 minus 4 is at least 26. I need this ASAP

Pavlova-9 [17]

For this case we must express the following expression algebraically:

<em>"The quotient of b and 2 minus 4 is at least 26"</em>

So we have to:

The quotient of b and 2 minus 4, is represented as: $\frac {b} {2-4}$

We have different signs subtracted and the sign of the major is placed:

$\frac {b} {- 2}$

Thus, the expression is written as:

$\frac {b} {2-4} \geq26\\\frac {b} {- 2} \geq26\\- \frac {b} {2} \geq26$

ANswer:

$\frac {b} {2-4} \geq26$

3 0

3 years ago

A survey was held to find the time taken by students to reach school from their homes. Each student was asked to choose from 10,

Andrej [43]

Answer:

there is no mode

Step-by-step explanation:

because there is no doubles

6 0

3 years ago

In how many ways can 5 different novels, 4 different mathematics books, and 1 biology book be arranged on a bookshelf if: (a) Th

Zinaida [17]

Answer:

(a) 3628800 ways

(b) 17280 ways

Step-by-step explanation:

Given

$Novels = 5$

$Maths = 4$

$Biology = 1$

$Total = 10$

Solving (a): Arrangement with no restriction.

We simply count each book with no restriction. i.e. 10 books

So, the number of arrangement is:

$Arrangement =10!$

$Arrangement =10*9*8*7*6*5*4*3*2*1$

$Arrangement =3628800$

Solving (b): Maths book together and Novels together

First, arrange the 4 maths books as:

$Maths = 4!$

Next, arrange the 5 novels as:

$Novels = 5!$

Lastly, take the 4 maths book as [1], the 5 novels as [1] and the remaining [1] biology book.

So, we have: 3 books

Arrange 3 books, we have:

$Books = 3!$

Total arrangement is:

$Total = 4! * 5! * 3!$

$Total = 4*3*2*1 * 5*4*3*2*1 * 3*2*1$

$Total = 17280$

Solving (c): Maths book together

First, arrange the 4 maths books as:

$Maths = 4!$

Next, take the 4 maths book as [1], then the remaining 6 books (i.e. 5 novels and 1 biology)

So, we have: 7 books

Arrange 7 books, we have:

$Books = 7!$

Total arrangement is:

$Total = 4! * 7!$

$Total = 4*3*2*1 * 7*6*5*4*3*2*1$

$Total = 120960$

7 0

3 years ago