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insens350 [35]
3 years ago
15

Find the product of (-8) and (-13)

Mathematics
1 answer:
KiRa [710]3 years ago
4 0
To find this you can always use a calculator, if your teacher allows you to. Just remember to punch in the negative signs correctly and don't mistake them for subtraction signs. Also if you don't know what product means, that means the answer of a multiplication problem so for example 9 is the product of 3x3 or 5 is the product of 5x1. The answer to your question is 104. Maybe next time you can solve it on your own! :) 
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Factor the algebraic expression below in terms of a single trigonometric function. sin 2x + sin x - 2
Pie

Answer:

The factored form is (sin x +2)(sin x-1)

Step-by-step explanation:

We have been given the trigonometric function \sin^2 x +\sinx-2

We can factor this by AC method. In AC method we multiply the term a and c and then write the middle term b in such a way that the sum/difference is equal to the product 'ac'

Using the method, we can write sinx as 2sinx -sinx

\sin^2 x +2\sinx-\sin x-2

Now, we group the first two terms and the last two terms

(\sin^2 x +2\sinx)+(-\sin x-2)

Now, we take GCF from each group

\sin x(\sin x +2)-1(\sin x+2)

Factor out (sinx+2)

(\sin x +2)(\sin x-1)

Therefore, the factored form is (sin x +2)(sin x-1)

7 0
3 years ago
Read 2 more answers
What is 3 1/3 divided by 1/3
saveliy_v [14]
Convert 3 1/3 into a improper fraction:
= 10/3

Then flip the other fraction around and multiply them together:
1/3 -> 3/1
(10*3)/(3*1) = 30/3 = (30/3)/(3/3) = 10/1 = 10

The answer is 10
4 0
3 years ago
Read 2 more answers
Lisa works part time at the cookie jar. She earns $4.25 an hour. Last week she worked from 6 p.m to 9 p.m on monday, tuesday, an
Marianna [84]

Answer:

38.25

Step-by-step explanation:

4.25x9

5 0
3 years ago
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If a person walks 1/3 mile in 1/5 minutes, how far will that person walk in one hour?
astra-53 [7]
1/15 miles because you’re basically multiplying the fractions i believe
7 0
2 years ago
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Why is it important to be able to write a fraction in simplest form?
Alex
This is important because if you were to answer in complex fractions instead of its simplest form, you would have a tough time multiplying complex fractions together. You would get a HUGE denominator or numerator, which makes things difficult. It is important to write a fraction in its simplest form because of exactly that; making things simple. Would you rather multiply 64/132*64/132 or 1/2*1/2?
3 0
3 years ago
Read 2 more answers
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