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Sloan [31]
3 years ago
6

Whats the anwser for 4n -8 =5​

Mathematics
2 answers:
aleksklad [387]3 years ago
8 0

Answer:

n= 3.25 (decimal) 13 [ thirteen over four 13/4] 4

Step-by-step explanation:

4n -8=5 - add 8 to both side

+8 +8

4n =13. -divide by 4n

/4. /4

n= 3.25 (decimal) 13 [ thirteen over four 13/4] 4

Charra [1.4K]3 years ago
3 0
Step by step explanation




4n-8=5
4n= 5+8
4n=13
4/4 n = 13/4
n= 13/4
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Help please<br><br>...................​
aleksklad [387]

Answer:

Step-by-step explanation:

11.

Area as sum: 7d+7*4

Area as Product: 7(d+4)

12. Area as sum: y*y+y*3

Area as Product: y(y+3)

5 0
2 years ago
A rectangle has an area of 90 square centimeters and a height of 12.5 centimeters. What is the length of the base?
Sergio [31]

Answer:

A. 7.2 centimeters

Step-by-step explanation:

The length of the base is 7.2 centimeters. The area of a rectangle is length*width

The length is unknown but the area is known. To find the length, all we have to do is divide the area from the height.

The working is as follows :

Area = 90 cm²

Height = 12.5 cm

Length = ?

<em>Length</em><em> </em><em>=</em><em> </em><em>Area</em><em> </em><em>÷</em><em> </em><em>Height</em>

<em>=</em><em> </em><em>90</em><em> </em><em>÷</em><em> </em><em>12</em><em>.</em><em>5</em>

<em>=</em><em> </em><em>7.2cm</em>

4 0
3 years ago
Find the minimum of the data set.
Natalija [7]

Answer:

23,600.

Step-by-step explanation:

23|6

7 0
3 years ago
A multiple-choice test contains 10 questions. There are four possible answers for each question. a) In how many ways can a stude
AnnZ [28]

Answer :

<h3>4^{10} <u> =1048576 ways </u> a student can answer the questions on the test if the student answers every question.</h3>

Step-by-step explanation:

Given that a multiple-choice test contains 10 questions and there are 4 possible answers for each question.

∴ Answers=4 options for each question.

<h3>To find how many ways  a student can answer the given questions on the test if the student answers every question :</h3>

Solving this by product rule

Product rule :

<u>If one event can occur in m ways and a second event occur in n ways, the number of ways of two events can occur in sequence is then m.n</u>

From the given the event of choosing the answer of each question having 4 options is given by

The 1st event of picking the answer of the 1st question=4 ,

2nd event of picking the answer of the 2nd question=4 ,

3rd event of picking the answer of the 3rd question=4

,....,

10th event of picking the answer of the 10th question=4.

It can be written as  by using the product rule

=4.4.4.4.4.4.4.4.4.4

=4^{10}

=1048576

<h3>∴ there are 1048576 ways a student can answer the questions on the test if the student answers every question.</h3>
3 0
3 years ago
Factorise the following algebraic expressions completely a. y4 −81 . x2 +10x +24
Ludmilka [50]

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3 years ago
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