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3 years ago

PLEASE HELP ME!! iv'e tried to do some, but i dont think it is right

Mathematics

1 answer:

Gnom [1K]3 years ago

3 0

For number 6 I don’t know. For number 7, it’s a right angle. For question 8, it’s a right angle because it is 90 degrees.

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-3 - 8 = 19<br> —3x - 2 = 25

Delicious77 [7]

Answer:

a negative times a negative is a positive so 8×3=24/19 will give you that answer

you add -2 to the other side with 25 and get 27 then u work the rest of the problem out to solve for x

4 0

3 years ago

The inches of rainfall in the rainforest is represented by the function f(x) = 3(x-2)+ 4. What is the average rate of change bet

nata0808 [166]

Answer:

The average rate of change of rainfall in the rainforest between 2nd year and 6th year = <u>3 inches</u>

Step-by-step explanation:

Given function representing inches of rainfall:

$f(x)=3(x-2)+4$

To find the average rate of change between the 2nd year and the 6th year.

Solution:

The average rate of change between interval $[a,b]$ is given as :

$\frac{f(b)-f(a)}{b-a}$

For the given function we need to find the average rate of change between 2nd year and 6th year. $[2,6]$

So, we have:

$f(2)=3(2-2)+4=3(0)+4=4$

$f(6)=3(6-2)+4=3(4)+4=12+4=16$

Thus, average rate of change will be:

$\frac{f(6)-f(2)}{6-2}$

⇒ $\frac{16-4}{6-2}$

⇒ $\frac{12}{4}$

⇒ $3$

Thus, the average rate of change of rainfall in the rainforest between 2nd year and 6th year = 3 inches

8 0

3 years ago

PLZZZZ HELPPP I NEED ANSWERS!!!

cestrela7 [59]

the bottom one is x2 ....

4 0

2 years ago

What is a decimal that is equivalent to the expression (2 x 100) + (8 x 10) + (5 x 1) + (6 x 0.01) + (3 x 0.001).

Lana71 [14]

Answer:

285.061

Step-by-step explanation:

5 0

2 years ago

Find m angle ABC <br> I really need the answer to this

damaskus [11]

To find <ABC, the first thing you would need to do is to find angle DBA and the value of x

As <DBE is a right angle, <DBE is on the same straight line as well,meaning that it would be 90° , a right angle as well.

It also mean that the total sum of the angles unknown would be 90°

To find x,we need to set up an equation:
(2x+14)+ (x+7) = 90
3x+21 = 90
3x = 69
x = 23

Thus,<ABC would be
(23)+7
=30°

Hope it helps!

7 0

2 years ago

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