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choli [55]
3 years ago
5

15.2: Thinking About Solutions

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

Step-by-step explanation:

3(n+1) ≠ 3n+1

14(20d+4) ≠ 5d

12+x ≠ 13+x

v+2 ≠ v-2

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The square of a number exceeds that number by 12. What are the two possible solutions?
laiz [17]

Answer:

The correct answer is option C.

Step-by-step explanation:

Let the number be x.

The square of a number exceeds that number by 12 .Mathematically can be written as:

x^2-x=12

x^2-x-12=0

Using middle term splitting to factorize the expression:

x^2-4x+3x-12=0

x(x-4)+(3)(x-4)=0

(x+3)(x-4)=0

The two possible solutions are :

1) (x+3)=0

x = -3

2) (x-4)=0

x = 4

4 0
3 years ago
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Q6 Q19.) Write the expression as the​ sine, cosine, or tangent of an angle. Then find the exact value of the expression.
Greeley [361]
Using sin(A+B) = sinAcosB + cosAsinB

sin20cos40 + cos20sin40 = sin(20+40) = sin60degree

= \frac{ \sqrt{3}}{ 2}
3 0
3 years ago
What is a multiplication problem using two decimals that has a product greater than 0.1 but less than 0.2
Sindrei [870]
0.05x4.1 would be a correct answer I think
7 0
3 years ago
Plz help look at picture above ​
balu736 [363]

Answer:

2/9

Step-by-step explanation:

The probability of getting any letter once is 1/3

The probability of getting any combinations = 1/3 * 1/3 = 1/9

The probability of getting two of the combinations = 1/9 + 1/9 = 2/9

8 0
3 years ago
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Solve a-c=d-r for a<br><br> please help me :)
Vesnalui [34]

Answer:

a = d - r + c

Step-by-step explanation:

Simply switch the terms around a bit and you have the answer.

Hope this helped!

3 0
3 years ago
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