3 years ago

What is the difference between -10 and 17 on a number line?

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

The difference would be 7

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Find the conjugate of the complex number, use division:<br> 2+i<br> ——<br> 1+i

Fittoniya [83]

I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

$\dfrac{2+i}{1+i} = \dfrac{2+i}{1+i} \cdot \dfrac{1-i}{1-i} = \dfrac{2(1)-i^2-2i+i}{1^2+1^2} = \frac 3 2 - \frac 1 2 i$

4 0

3 years ago

For which function does f decrease by 15% every time x increases by 1

LenaWriter [7]

Answer:

$f(x) = 0.85^{x}$

Step-by-step explanation:

The exponential function that decrease by 15% every time x increases by 1 is given by:

$f(x) = {(1 - 0.15)}^{x}$

We simplify the parenthesis to get:

$f(x) = 0.85^{x}$

Therefore the decrease by 15% every time x increases by 1 is

$f(x) = {0.85}^{x}$

The second choice is correct.

7 0

3 years ago

Joey’s mom baked (30) cookies. That night, there were 21 cookies left. What percentage of the cookies were eaten?

katrin2010 [14]

Answer:

About 97%

Step-by-step explanation:

5 0

3 years ago

The sum of 5x and 2x is a least 70

diamong [38]

Answer:

7x ≥ 70

Step-by-step explanation:

5x + 2x ≥ 70

7x ≥ 70

x ≥ 10

Hope this helps!

-sruthi123

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3 years ago

Drag an expression to the box to create an equation with NO solutions.

irina [24]

The answer will be the last one as it equals 4x + 3. this means that the equation will be parallel and does not have a solution.

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3 years ago