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katrin2010 [14]
3 years ago
13

Help please!!! WILL GIVE BRAINLIEST!!!!!!!!!!

Mathematics
2 answers:
telo118 [61]3 years ago
6 0

Answer:

640

Step-by-step explanation:

8^2 = 64

10*64 = 640

Masteriza [31]3 years ago
4 0

Answer:

640

Step-by-step explanation:

b = 8

10b^2 = (10)(8^2) = (10)(64) = 640

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What common base can be used to rewrite each side of the equation<br> 2<br> 3<br> 5<br> 8
marta [7]

Answer:

2.

Step-by-step explanation.

4 0
3 years ago
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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

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

7 0
3 years ago
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Use any method to solve the equation. If necessary, round to the nearest hundredth.7x2 − 16x = 8
Semmy [17]
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4 0
3 years ago
Please help! can you explain it to me?
Semenov [28]

Answer:

It is increasing before x = -2 and from x = 0 to x = 2

Step-by-step explanation:

Option 1 - you can see the line going down starting at -2 and that means the line is decreasing but the choice says "It is increasing before x = 0". This contradicts the actual graph.

Option 2 - The line isn't increasing before x= -1, it's actually decreasing as seen in the graph.

Option 3 - The line doesn't even touch the point before x = -3 so this choice makes no sense.

Option 4 - Since all the other choices were eliminated this is the only choice standing. Looking at the line it is increasing before x = -2.

7 0
2 years ago
Pls help me on this........​
Shalnov [3]
The first one is the answer to the question
6 0
3 years ago
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