PLEASE HELP IM DESPERATE I have no clue about this

Mathematics

2 answers:

Sveta_85 [38]3 years ago

8 0

Answer:

Step-by-step explanation:

Two linear lines can never intersect twice

Aleonysh [2.5K]3 years ago

4 0

B) Two Solutions

Reason is that when we have two straight lines, they can only intersect at one point of intersection. So you can either have one, none, or an infinite solution, you can’t have exactly two solutions.

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A store is having a 20%-off sale on all merchandise. If Mai buys one item and saves $13, what was the original price of her purc

grin007 [14]

Answer:

The original price of her purchase was $65.

Step-by-step explanation:

From the information given, you know that $13 represents 20% of the original price and you can use a rule of three to find the value that represents 100%, which would be the original pice of her purchase:

$13 → 20%

x ← 100%

x=(13*100)/20

x=1300/20

x=65

According to this, the answer is that the original price of her purchase was $65.

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A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample m

Georgia [21]

Answer:

0.5

Step-by-step explanation:

Solution:-

- The sample mean before treatment, μ1 = 46

- The sample mean after treatment, μ2 = 48

- The sample standard deviation σ = √16 = 4

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Cohen's d = $\frac{u2 - u1}{sd_p_o_o_l_e_d}$