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melisa1 [442]
3 years ago
15

Factorise the following completely: (4 marks)a)a) 81

Mathematics
2 answers:
mojhsa [17]3 years ago
7 0

Answer:

Learn the factors of 92, and the factors of 93, and the factors of 94.All three of these numbers are composite numbers

Assoli18 [71]3 years ago
3 0
Factors of 81: 1, 3, 9, 27, 81. Prime factorization: 81 = 3 x 3 x 3 x 3 which can also be written 3⁴.
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The perimeter of the scalene triangle is 88 cm.Which equation can be used to find the value of b if side a measures 12.5 cm?
Mariulka [41]

Answer:

A scalene triangle is one whose sides are all a different length. So there is no way you can find the length of b when you are only given the length of a and the perimeter.

Step-by-step explanation:

hopes it help :)

5 0
3 years ago
I don’t know how to figure out the ratio of the areas. The area for HGEF is 60.5 (121/2) and the area for JKLM is 378.125 (3025/
natima [27]

Answer:

25 : 4

Step-by-step explanation:

Given 2 similar figures with ratio of sides = a : b , then

ratio of area = a² : b²

For the given figures the ratio of corresponding sides is

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3 0
3 years ago
I really need help with this-
kykrilka [37]

Answer:

34

Step-by-step explanation:

|2 - 4a| - 2(b - 7)

|2 - 4(3)| - 2(-5 - 7)

|2 - 12| + 10 + 14

|-10| + 10 + 14

10 + 10 + 14

20 + 14

34

Best of Luck!

6 0
4 years ago
Read 2 more answers
Pls i need this asap
Goryan [66]

Answer:

It would have to be (C) 50.27 because 25 is too short for a diameter of 8 seeing it would be 8x4 to get 32 in which 25 is not long enough for. So the answer is C.

6 0
3 years ago
Use s unit fraction and a whole number to write a multiplication equation equal to 7/8​
Andreyy89

Answer:

7 * 1/8

Step-by-step explanation:

7 is a whole number

A unit fraction has the top number equal to 1, so we can use 1/8

8 0
4 years ago
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