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4 years ago

If PR = 4x – 2 and RS = 3x – 5, which expression represents PS?

1 answer:

Klio2033 [76]4 years ago

8 0

You can use those 2 expressions Like vectors:
PR + RS = PS
4x - 2 + 3x - 5
Then you add the variables alone, then the numbers alone, and you get:
PS = 7x - 7
You can factories it too: 7(x-1)

Hope this Helps! :)

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I am trying to solve this problem 2x-8y=10

Ludmilka [50]

Answer:

x=25 y=5

Step-by-step explanation:

x=25

y=5

x*2=50

8*5=40

50-40=10

8 0

4 years ago

A 10-inch sunflower is planted in a garden and the height of the sunflower increases exponentially. The height of the sunflower

Misha Larkins [42]

Answer:

5-day growth factor is 27.027-inch

Step-by-step explanation:

Given;

the initial height of the sunflower = 10-inch

the rate at which the height increases = 22%

time of growth = 5 days

To calculate 5-days growth factor, we apply the formula below, since it grows exponentially;

$=10-inch [1+\frac{22}{100}] ^5\\\\= 10-inch(2.7027)\\\\= 27.027-inch$

Therefore, 5 day growth factor is 27.027-inch

8 0

3 years ago

as a student you're able to earn extra money by assisting your neighbors with odd jobs if you charge $10.25 an hour for your ass

mylen [45]

8,425 ÷ 10.25 = 821.95
You would round up so to earn $8,425 you would need to work 822 hours

4 0

3 years ago

Please answer a question the images.

Lyrx [107]

The distribution of the animals in the coral reef is an illustration of probability

<h3>The most likely animal</h3>

The distribution of the animals is given as:

Blue fish = 3

Yellow fish = 7

Sea turtle = 1

Eels = 3

The animal with the highest frequency is the most likely animal.

Hence, the Yellow fish is the most likely animal.

<h3>Which is more likely?</h3>

From the question, we have:

Blue fish = 3

Eels = 3

Both animals have the same frequency.

This means that Riley has equal chance of seeing a blue fish and an eel.

<h3>The probability of seeing an animal with fins</h3>

The animal with fins are:

Blue fish = 3

Yellow fish = 7

So, the probability is:

$p = \frac{3 + 7}{3 + 7 + 1 + 3}$

$p = \frac{10}{14}$

Simplify

$p = \frac 57$

Hence, the probability of seeing an animal with fins is 5/7

<h3>The least likely animal</h3>

The animal with the least frequency is:

Sea turtle = 1

So, the likelihood is:

$p = \frac 1{14}$

Hence, the sea turtle has the least likelihood of 1/14

<h3>Animals with equal likelihood</h3>

The Blue fish and the Eels have the same frequency of 3

This means that animals have equal likelihood

<h3>The probability of seeing each animal</h3>

We have:

Blue fish = 3

Yellow fish = 7

Sea turtle = 1

Eels = 3

Express as probability

Blue fish = 3/14

Yellow fish = 7/14

Sea turtle = 1/14

Eels = 3/14

Express the fractions as decimals

Blue fish = 0.214

Yellow fish = 0.500

Sea turtle = 0.071

Eels = 0.214

So, their likelihoods are:

Blue fish = Equally likely

Yellow fish = Certainly likely

Sea turtle = Unlikely

Eels = Equally likely