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mote1985 [20]
3 years ago
10

?????????????? Help

Mathematics
1 answer:
ss7ja [257]3 years ago
8 0
X•X•X•X•X•X•X•X•X•X
That is the answer for your problem
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Donna earns twice as much money per month as omar does. Omar earns $209 more than alex. Together, the three workers earn 3320 pe
Blizzard [7]
Omar makes $882.25 a month

Donna = 2x
Omar = x
Alex = x - 209

4x - 209 = 3320
4x = 3529 
x = $882.25
3 0
3 years ago
I need help with both of these problems
GREYUIT [131]
The first question is D because if the
y-intercept is 1 then every point moves down three units.

The second question is J because a vertical line is not a function so it can’t be a linear function.
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3 years ago
Apple launches an ad campaign for iPhone 12. Managers want to know what is the % of social media mentions that have positive rea
Orlov [11]

Answer:

social media mentions do managers at Apple need to collect, if they want to get a margin of error of 2%

Sample size 'n' = 625

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given data Apple launches an ad campaign for iPhone 12

Managers want to know what is the % of social media mentions that have positive reactions to the new ad campaign

probability of positive reactions p = 1/2

Probability of negative reactions q = 1-p = 1/2

we know that \sqrt{p(1-p}\leq \frac{1}{2}

<u><em>Step(ii):</em></u>-

Given margin of error  = 2 % =0.02

The margin of error is determined by

          M.E = \frac{\sqrt{p(1-p} }{\sqrt{n} }

         0.02 = \frac{\frac{1}{2}  }{\sqrt{n} }

        \sqrt{n} =\frac{1}{2 X0.02}

        √n = 25

squaring on both sides, we get

       n = 625

8 0
3 years ago
Whats the definition of quadratic expression
pantera1 [17]
A quadratic expression<span> is any mathematical </span>expression<span> whose power or degree is two. In other words, any </span>expression<span> that uses variables where the highest exponent or the </span>expression's<span> degree is two is a </span>quadratic expression<span>. The </span>expression<span> must have a power of two, no higher nor lower.</span>
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3 years ago
What are so sayings for pemdas?
bearhunter [10]

Answer:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

8 0
2 years ago
Read 2 more answers
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