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3 years ago

What is the value of 3-(-2)?

Mathematics

2 answers:

Lostsunrise [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Maru [420]3 years ago

4 0

5. Because the two subtraction signs turn into a big plus sign

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Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchas

strojnjashka [21]

He had 50 books before.

3 0

3 years ago

Please help it’s for a grade I’ll give you Brinley if right

Vikki [24]

Answer: D

Step-by-step explanation:

8 0

3 years ago

What is the range of the equation

a_sh-v [17]

The range of the equation is $y>2$

Explanation:

The given equation is $y=2(4)^{x+3}+2$

We need to determine the range of the equation.

Range:

The range of the function is the set of all dependent y - values for which the function is well defined.

Let us simplify the equation.

Thus, we have;

$y=2 \cdot 4^{x+3}+2$

This can be written as $y=2^{1+2(x+3)}+2$

Now, we shall determine the range.

Let us interchange the variables x and y.

Thus, we have;

$x=2^{1+2(y+3)}+2$

Solving for y, we get;

$x-2=2^{1+2(y+3)}$

Applying the log rule, if f(x) = g(x) then $\ln (f(x))=\ln (g(x))$ , then, we get;

$\ln \left(2^{1+2(y+3)}\right)=\ln (x-2)$

Simplifying, we get;

$(1+2(y+3)) \ln (2)=\ln (x-2)$

Dividing both sides by $\ln (2)$ , we have;

$2 y+7=\frac{\ln (x-2)}{\ln (2)}$

Subtracting 7 from both sides of the equation, we have;

$2 y=\frac{\ln (x-2)}{\ln (2)}-7$

Dividing both sides by 2, we get;

$y=\frac{\ln (x-2)-7 \ln (2)}{2 \ln (2)}$

Let us find the positive values for logs.

Thus, we have,;

$x-2>0$

$x>2$

The function domain is $x>2$

By combining the intervals, the range becomes $y>2$

Hence, the range of the equation is $y>2$

7 0

4 years ago

Elevando um certo numero natural,maior do que zero,ao expoente 101 encontrarmos como resposta 1. Qual é esss numero? 101 A) 0 B)

Feliz [49]

Answer:

B) 1

Step-by-step explanation:

The computation of the number is shown below:

Since the number 1 would be raised to any exponent so it always remains be 1

= 1 × 1 × 1 × 1 × 1 × 1 × 1 × 1 × 1

= 1

Therefore the option B is correct

5 0

3 years ago

-2x + 9x What is the answer

Blababa [14]

Answer: $7x$

Remove "x" and add

-2 + 9 = 7

Add "x" back

7 -----> 7x

Note: When adding/subtracting problems like these remove "x" and then add/subtract normaly. When you get your answer put x back.

7 0

3 years ago

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