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NeTakaya
2 years ago
11

30 Between what two standard deviations of a normal distribution contain 68% of the data?

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
4 0

d

man i think its d or b maby

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3/8 rounded to the nearest thousand​
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5 0
2 years ago
If $380 is invested for one year at 13% simple interest, how much interest is earned?
pashok25 [27]

Answer: $49.4

Step-by-step explanation:

Simple interest is calculated thus:

Principal × Rate × Time

Principal= $380

Rate= 13%= 13/100=

Time= 1

Therefore interest earned =380× 0.13×1

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3 years ago
In the school store, all markups are 25%. If the store paid $12 for a t-shirt, what is the selling price?
pashok25 [27]

Answer:

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Step-by-step explanation:

6 0
3 years ago
2) The triangles are similar. Find the similarity ratio of the first triangle to the 1 point
USPshnik [31]

Given:

Triangles FRI and DAY are similar.

To find:

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<em>If two triangles are similar then the corresponding angles are congruent and the corresponding sides are in proportion.</em>

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Cancel the common factors of 4 and 6, we get

$\Rightarrow \frac{FR}{DA} =\frac{2}{3}

⇒ FR : DA = 2 : 3

⇒ ΔFRI : ΔDAY = 2 : 3

Similarity ratio of the first triangle to the second triangle is 2 : 3.

7 0
3 years ago
Factor completely: 2x^3 – 32x
anastassius [24]
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