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3 years ago

Simplify 18-2[x + (x - 5)]. O8-4x 28 - 4x 28 - 2x

Mathematics

1 answer:

densk [106]3 years ago

3 0

Answer:

28-4x

Step-by-step explanation:

Step 1: Open most inner bracket and simplify

=18-2(x+x-5)

=18-2(2x-5)

Step 2: Expand brackets by multiplying 2 in and simplify

=18-2(2x)-2(-5)

=18-4x+10

=28-4x

Therefore the answer is 28-4x

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Evaluate log 8 base 5

Sergeu [11.5K]

The answer is 1.29029.

Given : $log_{5}8$

To evaluate the given equation.

Solution:

$log_{5}8=log(8)/log(5)$

As we know, $log8=0.9030899$ and $log(5)=0.69897000$

So equating is the above equation, we get;

$log_{5}8=0.9030899/0.6989700$

$log_{5}8=1.292029$

Hence, The answer of $log_{5}8$ is $1.29029$ .

To learn more about the log, refer:

brainly.com/question/1695836

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2 years ago

If (-3, y) lies on the graph of y = , then y =

ser-zykov [4K]

Answer:

The value of y is 64.

Step-by-step explanation:

The given equation is

$y=(\frac{1}{4})^x$

It is given that (-3, y) lies on the graph of y. It means the equation of the function must be satisfy by the point (-3,y).

Substitute x=-3 in the given equation to find the value of y,

$y=(\frac{1}{4})^{-3}$

$y=4^{3}$ $(\frac{a}{b})^{-n}=(\frac{b}{a})^n$

$y=64$

Therefore the value of y is 64.

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4 years ago

Someone plz help me no one helping me plz don’t answer saying idk or oh it so easy or something unhelpful cuz if it was easy HEL

Strike441 [17]

Answer:

(If you were asking for the answer for question 7)

c. Initially, Cassie has $20 in her account.

Step-by-step explanation:

-20 represents the slope or rate of change of the line and 275 represents the y-intercept or starting point of the line on the y-axis. C is the right answer because initially Cassie had $275 in her account, not $20.

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3 years ago

Name the kind or kinds of symmetry the following figure has: A

denpristay [2]

It is a straight line of symmetry because if you have a paper A and you fold it, it will form a straight line, and that is also meaning a straight line of symmetry. If you fold it any other way, it will not be a line of symmetry.

Hope this helps you ;)

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3 years ago

Nate' s mother drives 225 miles back and forth to work each month. How many miles does she drive back and forth to work in one y

otez555 [7]

So 1 year is 12 months, you want to multiply 225 and 12 which equals 2,700 miles. 2,700 miles is the answer.

4 0

3 years ago

Read 2 more answers