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soldier1979 [14.2K]
3 years ago
14

Factorise the following expression ​

Mathematics
1 answer:
timofeeve [1]3 years ago
8 0

Step-by-step explanation:

Try different products to find 26

split the coefficients of the middle term ie 15x

expand the equation

Regroup

Answer =(x+2) (x+13)

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What are the opposites of 7, -3.5 , 2.25, and 9 1/3
Ber [7]
The opposite of 7 is -7, the opposite of -3.5 is 3.5, the opposite of 2.25 is -2.25, and the opposite of 9 1/3 is -9 1/3
7 0
4 years ago
The student council is trying to select a musical artist to play at the annual school dance. They polled a random sample of 150
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Answer: d. 92

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3 years ago
Multiplying (-9)(-6)(2)=
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108

Step-by-step explanation:

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3 years ago
Someone, please help i don't understand this
miv72 [106K]

Answer

62

5.3

65

5.8

2.5

Step-by-step explanation:

FOr the first one we have the opposite and adjacent side, so we'll use TOA

let x= angle

tan(x)=4.7/2.5

x=61.99 or 62

2.) for this one we can just use pathagoryeous thereom

2.5²+4.7²=c²

28.34=c²

c=5.323

3.) For this one we know that the angles in a traingle must add to 180

let x= missing angle

25+90+x=180

x=65

4.) For this one we have the adjacent side but need the hypotonouse

we will therefore use CAH

cos(25)=5.3/x

5.3/(cos(25))=x

x=5.8

5.) For this one we will just use the pathagoryeous to solve for the missing side

a²+5.3²=5.8²

a²=6.107

a=2.5

8 0
3 years ago
Define in words mutually exclusive events. Choose the correct answer below. A. Events A and B are mutually exclusive if A contai
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Answer:

B. Events A and B are mutually exclusive if A and B have no sample points in common.

Step-by-step explanation:

When two events( call them A and B) are mutually exclusive , it is impossible for them to happen together.

P(A and B) = 0

"The probability of A and B together equals 0 (impossible)"

Hence, the correct answer is B.

B. Events A and B are mutually exclusive if A and B have no sample points in common.

4 0
3 years ago
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