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jonny [76]
3 years ago
5

Which expression use the associative property to make it easier to evaluate 20 (3/5 × 6)

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0

Answer:

C

Step-by-step explanation:

cricket20 [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

A TO THE P TO THE E TO THE X

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A triangular face of the roof of the garage has two sides
aleksklad [387]

Answer:

The roof does form a right triangle.

Step-by-step explanation:

If it is a right triangle then it will obey the Pythagoras Theorem.

Now  (√186)^2 = (√93)^2 + (√93)^2

              186 = 93 + 93 = 186

So it obeys the theorem and is therefore a right triangle.

5 0
1 year ago
First person to answer correctly gets brainliest!!!!!
Damm [24]
N=2.2



Hope this helps! If you're satisfied with this answer.. Brainliest please.
5 0
3 years ago
4. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. In a
borishaifa [10]

675 people will have score between 85 and 120

Step-by-step explanation:

Given

Mean = 100

SD = 15

If we have to find percentage of score between two values we have to find the z-score for both values and then area under the curve for both values

z-score is given by:

for a value x:

z-score = \frac{x-mean}{SD}

So,

For 85:

z-score = z_1 = \frac{85-mean}{SD}\\ = \frac{85-100}{15}\\=\frac{-15}{15}\\=-1

z-score = z_2 = \frac{120-mean}{SD}\\ = \frac{120-100}{15}\\=\frac{20}{15}\\=1.3333

Now we have to find the area under the curve for both values of z-score. z-score tables are used for this purpose.

So,

For z1 : 0.1587

For z2: 0.9082

The area between z11 and z2:

z_2-z_1 = 0.9082-0.1587=0.7495

So the probability of score between 85 and 120 is 0.7495

As the sample is of 900 people, the people with scores between 85 and 120 will be:

900*0.7495 = 674.55 people

Rounding off to nearest whole number

675 people will have score between 85 and 120

Keywords: Probability, SD

Learn more about probability at:

  • brainly.com/question/10978510
  • brainly.com/question/11007026

#LearnwithBrainly

4 0
3 years ago
Nadia's Furniture store buys a table at a wholesale price of $157.00. If the markup rate at Nadia's Furniture Store is 50%, what
Natasha_Volkova [10]

Answer:

The make up rate would be 78.50 $

Step-by-step explanation:

4 0
2 years ago
If ∠4 = 98°, then ∠3 = ?<br> look at image
Ksju [112]

Step-by-step explanation:

∠4 = ∠1 & ∠2 = ∠3

360 - 2(98) = ∠2 + ∠3

∠3 = 164/2

∠3 = 82°

6 0
2 years ago
Read 2 more answers
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