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Free_Kalibri [48]
4 years ago
9

PLEASE HELP!!! I WILL GIVE 100 POINTS AND BRAINLIEST ANSWER IF YOU JUST PLEASE HELP ME!!! ;(

Mathematics
1 answer:
Citrus2011 [14]4 years ago
8 0
If you add the standard deviation to the average, it is 14.84. Because Marcus's score was lower than that, he will not receive a certificate. 
I think this should be right for the reason and the calculation. 


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Explain how to to evaluate multi-step expressions involving positive and negative decimals.
GrogVix [38]

Answer:

Hope this helps! (:

Step-by-step explanation:

By putting the numbers in the given equation,

2x + 3 + 3x = 7x + 9

5x + 3 = 7x + 9

(5x + 3) - 7x = (7x + 9) - 7x

(5x - 7x) + 3 = 9

-2x + 3 = 9

(-2x + 3) - 3 = 9 - 3

-2x = 6

-x = 3

x = -3

Therefore, our equation is correct which has a negative result.

In place of 6 if we use 8, value of x will be negative again.

7 0
2 years ago
Read 2 more answers
Hi, what’s 2+2 this is a fakeeee
Scrat [10]

Answer:

4

Step-by-step explanation:

Dorothy had 2 cookies.

Henry had 2 cookies.

Henry stole Dorothy's cookies.

How many cookies does Henry have?

2 + 2 = 4

Henry has 4 cookies.

Hope I helped xD

Please consider Brainliest :)

7 0
3 years ago
How many orders of fried chicken
galina1969 [7]

Answer:

267 / 1.50 = 178

they had 178 orders on sunday

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
PLEASE help me with this question! No nonsense answers and answer with full solutions please!
ohaa [14]

Answer:  b) {-3, 0.5}

Step-by-step explanation:

The new equation is the original equation plus 6.  Move the original graph UP 6 units.  The solutions are where it crosses the x-axis.

\text{Original equation:}\quad f(x)=\dfrac{15}{x}-\dfrac{9}{x^2}\\\\\\\text{New equation:}\quad\dfrac{15}{x}+6=\dfrac{9}{x^2}\\\\\\.\qquad \qquad  f(x)= \dfrac{15}{x}-\dfrac{9}{x^2}+6

+6 means it is a transformation UP 6 units.  

Solutions are where it crosses the x-axis.

The curve now crosses the x-axis at x = -3 and x = 0.5.

4 0
3 years ago
To solve the inequality -4x < 8, you would divide both sides of the inequality by -4.
solong [7]
True and the sign switches
6 0
4 years ago
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