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cestrela7 [59]
3 years ago
14

Select the polynomial that is a perfect square trinomial.

Mathematics
2 answers:
Sveta_85 [38]3 years ago
7 0

Answer:

The answer is 16x2 − 8x + 1

To be a perfect square trinomial, the rule must be used:

(a - b)² = a² - 2ab + b²

Let's check all choices

A. a = 7x, b = 4

(7x - 4)² = 49x² - 56x + 16

B. a = 2a, b = 5

(2a - 5)² = 4a² - 20a + 25

C. a = 5b, b = √10

(5b - √10)² = 25b² - 10√10 b + 10

D. a = 4x, b = 1

(4x - 1)² = 16x² - 8x + 1

CORRECT

Step-by-step explanation:

cestrela7 [59]3 years ago
3 0
The answer is <span>16x2 − 8x + 1
</span>
To be a perfect square trinomial, the rule must be used:
(a - b)² = a² - 2ab + b²

Let's check all choices
A. a = 7x, b = 4
(7x - 4)² = 49x² - 56x + 16

B. a = 2a, b = 5
(2a - 5)² = 4a² - 20a + 25

C. a = 5b, b = √10
(5b - √10)² = 25b² - 10√10 b + 10

D. a = 4x, b = 1
(4x - 1)² = 16x² - 8x + 1
CORRECT
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The range of the video games owned for the cluster is between 8 to 10.

Given

A group of children 6 to 10 years old were asked how many video games they owned.

The scatter plot shows the results.

<h3>What is the range?</h3>

The range is the difference between the lowest and highest numbers in a data set.

The range of video games owned for the cluster is 8 to 10.

Therefore,

The range of the video games owned for the cluster is;

\rm Range = Highest \ value - lowest \ value\\\\Range=10-8\\\\Range=2

Hence, the range of the video games owned for the cluster is between 8 to 10.

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If 75 g of liquid water ( C = 4.18 j/g C ) in a calorimeter changes temperature from 25 C to 75 C, how much heat was transferred
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In one year the perseid metor shower had a metor appear every 1/5 5 minutes on average That same year the Leonid metor shower ha
olga55 [171]

In one year, the Perseid meteor shower had a meteor appear every 1 1/5 minutes on average. That same year, the Leonid meteor shower had a meteor appear every 4 2/3 minutes on average. How many more meteors fell during the Perseid meteor shower?

Answer:

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Step-by-step explanation:

We all know that :

We have 365 days in a year and in each day there are 24 hours, Likewise an hour has 60 minutes

SO, the total number of minutes in a year is :

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For Perseid  meteor:

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So one meteor fall at 1.2 minutes interval Thus, in a year, we will have :

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x = \frac{525600}{1.2}

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For  Leonid meteor shower:

4 + \frac{2}{3} = 4.67

So one meteor fall at 4.67 minutes interval Thus, in a year, we will have :

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x = \frac{525600}{4.67}

x = 112548

112,548 meteors fell during the Leonid Shower.

Finally , the numbers of more meteors that  fell during the Perseid meteor shower is calculated by the difference in the number of Perseid meteor shower and Lenoid meteor shower. i.e

438,000 - 112,548 = 325,452

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