All categories

2 years ago

Help quick 15 points

Mathematics

2 answers:

MArishka [77]2 years ago

7 0

The second one is the answer

Marysya12 [62]2 years ago

5 0

Answer:w =A/1

Step-by-step explanation:

You might be interested in

What is the length of the diagonal of a poster board with dimensions 22 inches by 28 inches? Round to the nearest tenth.

devlian [24]

Answer:

The length of the diagonal of a poster board is $35.6\ in$

Step-by-step explanation:

Let

x----> the length of the diagonal of a poster board

we know that

Applying the Pythagoras Theorem

$x^{2}=22^{2}+28^{2} \\ \\x^{2}=1,268\\ \\x=35.6\ in$

4 0

2 years ago

Read 2 more answers

55 is 40% of what number

SCORPION-xisa [38]

You simply put 40 over a hundred and 55 over n (which is the number were trying to find) so you do cross multiplication. 55 times a hundred and after you get the answer. You divide it by 40 and should get 137.5.

3 0

3 years ago

Simplify the expressions by combining like terms 1.5r - 3r + 8r + 2.5r

Tomtit [17]

Answer:

Step-by-step explanation:

1.5r - 3r + 10.5r

10.5r + 1.5r = 12r

12r - 3r = 9r

Final Answer = 9r

5 0

3 years ago

I need the answer to a parts I-iii and the answer to b

fomenos

Answer:

i) Mean = 72

ii) Median = 72

iii) Mode = 72

69, 70, 71, 72, 72, 72, 73, 74, 75

Step-by-step explanation:

a. To find mean, median and mode

It is given that all the 9 students get 72 marks.

Therefore the data set be,

72, 72, 72, 72, 72, 72, 72, 72 72

i) mean = (sum of data)/(total number of data)

= (9 * 72)/9 = 9

ii) Median - Central data in the data set when arranging ascending or descending order

72, 72, 72, 72, 72, 72, 72, 72 72

Median = 72

iii) Mode - Most repeating data in the data set

Here mode = 72

b). To find a data set

69, 70, 71, 72, 72, 72, 73, 74, 75

Here Mean, mode and median are all 72

3 0

3 years ago

Can someone please help me with this? I keep getting half of the answer and I'm doing everything right. ------------------------

serg [7]

9514 1404 393

Answer:

a. x, x+2, x+4

b. 10 ≤ 3x+6 ≤ 24

c. 6 ft, 8 ft, or 10 ft

Step-by-step explanation:

Given:

The lengths of the sides of a certain triangle, in feet, are consecutive even integers.
The perimeter of this triangle is between 10 feet and 24 feet inclusive.

Find:

a. Using one variable, write three expressions that represent the lengths of the three sides of the triangle.

b. Write a compound inequality to model this problem.

c. Solve the inequality. List all possible lengths for the longest side of the triangle.

Solution:

You have let x represent the shortest side. (Note that the question asks for the length of the longest side.)

a. The expressions for side lengths can be x, x+2, x+4 when x is the shortest side.

b. Here is the compound inequality

10 ≤ x+(x+2)+(x+4) ≤ 24

c. Here is the solution

10 ≤ 3x+6 ≤ 24 . . . . collect terms

4 ≤ 3x ≤ 18 . . . . . . . subtract 6

4/3 ≤ x ≤ 6 . . . . . . . . divide by 3

Your working is correct, but incomplete. The values of interest are the even integers x+4.

5 1/3 ≤ x+4 ≤ 10

The longest side may be 6 ft, 8 ft, or 10 ft.

6 0

2 years ago