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2 years ago

Help me plssssssssssssss

Mathematics

1 answer:

siniylev [52]2 years ago

6 0

Answer:

yes

Step-by-step explanation:

why do you need this silly boy

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Given the following system of equations:

Artemon [7]

Answer: Divide the first equation, −4x + 8y = 16, by 2

Step-by-step explanation:

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3 years ago

Show each step of your work.<br><br> Solve -3x – 2 = 19.

IgorLugansk [536]

Answer:

Step-by-step explanation:

-3x -2 = 19

+3x +3x

-2 = 19 + 3x

-19 -19

-21 = 3x

Divided by 3

-7 = x

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3 years ago

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 60 miles per hour. Then, in t

Gnom [1K]

Answer:

There was a %5 increase

Step-by-step explanation:

You just have to substract 65-60 and you get 5

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2 years ago

What is the average rate of change for ƒ(x) = −3x + 79 over the interval 2 ≤ x ≤ 4?

Ainat [17]

Answer:

The average rate of change is -3.

Step-by-step explanation:

Given : Function $f(x)=-3x+79$ over the interval 2 ≤ x ≤ 4.

To find : What is the average rate of change ?

Solution :

Function $f(x)=-3x+79$ over [2,4]

The rate of change is the slope of the line,

So, $\text{Rate of change}=\frac{f(4)-f(2)}{4-2}$

$f(4)=-3(4)+79$

$f(4)=-12+79$

$f(4)=67$

$f(2)=-3(2)+79$

$f(2)=-6+79$

$f(2)=73$

Substitute,

$\text{Rate of change}=\frac{67-73}{4-2}$

$\text{Rate of change}=\frac{-6}{2}$

$\text{Rate of change}=-3$

Therefore, The average rate of change is -3.

8 0

3 years ago

Read 2 more answers

_30. Solve the following logarithmic equation: log8(x + 9) + 3 = 3

Bezzdna [24]

Answer:

Step-by-step explanation:

using the rule of logarithms

$log_{b}$ x = n ⇒ x = $b^{n}$

$log_{8}$ (x + 9) + 3 = 3 ( subtract 3 from both sides )

$log_{8}$ (x + 9) = 0 , then

x + 9 = $8^{0}$ = 1 ( subtract 9 from both sides )

x = - 8

7 0

2 years ago