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Mrrafil [7]
2 years ago
11

the deer population in an an area decreased by 28 each year for 6 years. find the total change in population.

Mathematics
2 answers:
Elan Coil [88]2 years ago
4 0

Answer:

168 is the change in population

Step-by-step explanation:

well if u think about it all u really have to do is take 28×6 and it would help u find the change in population

Serga [27]2 years ago
3 0

Answer:

The total change is -168.

Step-by-step explanation:

The deer population changed 6 times, and it decreased by 28 each time, so the equation is:

6 times -28 (because the population is decreasing) = -168

Hope this helps :)

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Whats the domain of f(x)=x^2+6x-3
pickupchik [31]
Hello!!

The domain of any polynomial expression is all real numbers from -infinity to +infinity. This is due to the leading x^2 term!

Hope this helps you understand! Thank you!!
3 0
3 years ago
Pleaseee helppppppppppppppppppp
quester [9]

To find Angle A we use cosine

cos ∅ = adjacent / hypotenuse

From the question

The adjacent is 17

The hypotenuse is 38

So we have

cos A = 17/38

A = cos-¹ 17/38

A = 63.4

<h3>A = 63° to the nearest degree</h3>

To find Angle C we use sine

sin ∅ = opposite / hypotenuse

From the question

The opposite is 17

The hypotenuse is 38

So we have

sin C = 17/38

C = sin-¹ 17/38

C = 26.57

<h3>C = 27° to the nearest degree</h3>

Hope this helps you

7 0
3 years ago
Mary is 5 feet tall and Alice is 1.6 meters tall. Who is taller? By how many inches?
8090 [49]

Answer:

Alice

Step-by-step explanation:

5 feet is approximately 1.5 meters so we can say Alice is taller than Mary by 10cm

6 0
3 years ago
Read 2 more answers
5. Based on recent results, scores on the SAT test are normally distributed with a mean of 1511 and a standard deviation of 312.
Mekhanik [1.2K]

Answer:

The actual SAT score is 2024.

The equivalent ACT score is 29.49.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

SAT score that is in the 95th percentile

Scores on the SAT test are normally distributed with a mean of 1511 and a standard deviation of 312, which means that \mu = 1511, \sigma = 312

95th percentile is X when Z has a pvalue of 0.95, so X when Z = 1.645. The score is:

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 1511}{312}

X - 1511 = 1.645*312

X = 2024

The actual SAT score is 2024.

Equivalent ACT score:

The equivalent ACT score is the 95th percentile of ACT scores.

Scores on the ACT test are normally distributed with a mean of 21.1 and a standard deviation of 5.1, which means that \mu = 21.1, \sigma = 5.1. So

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 21.1}{5.1}

X - 21.1 = 1.645*5.1

X = 29.49

The equivalent ACT score is 29.49.

5 0
2 years ago
This is really confusing
sertanlavr [38]

Answer:

a. Diego

b. Lin

Step-by-step explanation:

a. Diego

b. Lin

It's pretty easy just do some subtraction.

Actually look and pay attention in class this is like grade 1 math.

7 0
2 years ago
Read 2 more answers
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