A certain species of tree grows an average of 3.1 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 400 centimeters tall.

Answers

Answer 1
Answer:

Answer:

y = 3.1x+400c

Step-by-step explanation:

Slope intercept form:

The equation of straight line is given by:

y =mx+b            ....[1]

where, m is the rate or slope and b is the initial value of y-intercept.

As per the statement:

A certain species of tree grows an average of 3.1 cm per week.

Let x be the number of week and y represents the weekly height of the tree.

then;

" tree grows an average of 3.1 cm per week." translated to 3.1 x

It is also given that:

the measurements begin when the tree is 400 centimeters tall.

⇒y(0) =b = 400 cm

Substitute the given values in [1] we have;

y = 3.1x+400

Therefore, an equation for the sequence that represents the weekly height of this tree in centimeters is, y = 3.1x+400

Answer 2
Answer: Y = 400 + 3.1x

X for the number of weeks
Y for total CM

Hope this helps...

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Answers

Answer:

cant see it

Step-by-step explanation:

can you flip it pls

Solve: |x + 9| User: Evaluate 5|7 - 9| - 2.
-12
0
1
8

Answers

Solve:

[x+9] - there is nothing to simplify

======================================

Evaluate:

5(7-9)-2

35 -45-2

-10-2

-12

or

5(7-9)-2

35 -45-2

35-47

-12
------------------------------------------
So, -12 is the answer.

describe how the problem 24000/50 could be solved without dividing 24000/5, then find the answer. help pls

Answers

Write 24000 as the numerator and 50 as the denominator: 24000/50.

Notice that both the numerator and denominator have a common factor of 50.

Divide both the numerator and denominator by 50 to simplify the fraction:

(24000 / 50) / 50 = (24000 ÷ 50) / (50 ÷ 50) = 480 / 1

So, 24000/50 simplifies to 480/1, which is just 480 as a whole number. Therefore, 24000/50 = 480.

Dividing by 50 is the same as multiplying by 1/50, which is equivalent to 2/100.

The fraction 2/100 means we'll double 24000 to get 48000. Then remove 2 zeros at the end to get 480. The removal of two 0's is due to the division by 100.

Therefore, 24000/50 = 480

---------------

Dividing by 5 will follow a similar pathway. We can multiply by 1/5 aka 2/10

24000/5 = 24000*(1/5) = 24000*(2/10) = 48000/10 = 4800

Notice the numerator doubled to 48000, and then we remove a zero at the end.

All of this can be done using pure mental math only. Each answer can be confirmed with a calculator.

What is the value of b2 - 4ac for the following equation? x^2 + 5x + 4 = 0

Answers

a=1
b=5
c=4 so b^2-4ac=(5)^2-4(1)(4)=25-16=9

Find the ratio of 300ml to 6l

Answers

1:20 because 1=1000ml
6x1000ml=6000
300/6000=20
So the final answer is 1:20

A student has to take two quizzes tomorrow. He has only enough time to study for one of them. The history quiz has 5 true or false questions. The science quiz has 3 multiple choice questions.

Answers

Answer:

Answer:

Option B is correct.

Miguel should study for the Science quiz as he will do worse in that quiz by guessing.

Step-by-step explanation:

Miguel has to take two quizzes

1) 4 true or false questions on History with a 0.5 chance of acing the quiz

Expected number of correct questions = np

n = number of questions

p = probability of acing the test

Expected number of correct questions = 4 × 0.5 = 2

2) 3 multiple choice questions on Science with a 0.2 chance of acing the quiz.

Expected number of correct questions = 0.2 × 3 = 0.6

It is evident that guessing would yield a worse result in the Science quiz with less than 1 question expected to be correct than history, where he is still expected to get 2 questions correctly by guessing.

Answer:

He is correct

Step-by-step explanation: