Find the value of 7 then what is the value of the expression -3b2+25

Answers

Answer 1

Answer: -147 +25 = 122 i am pretty sure this is right but i might be wrong

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Does anyone know how to define percents

Answers

A percent is part of something, split into a hundred pieces. like fifty percent of forty is twenty.

A percent is something out of a hundred. Or a part out of a hundred.

C(x) = (x^1/7)(x + 8)Find the inflection points.
(x, y) =

(smaller x-value)
(x, y)=
(larger x-value)
(x, y)=

Answers

C(x) = 8/49 x^-6/7 - 48/49 x^-13/7
= 8/49 x^-6/7 (1 - 6/x)
So the inflection point is at x = 6
hope it helps

Twenty-one is 25% of

Answers

Answer:

Twenty-one is 25% of 84 .

Step-by-step explanation:

Formula

$Percentage = (Part\ value* 100)/(Total\ value)$

As given

Part value = 21

Percentage = 25%

Put all the values in the formula

$25= (21* 100)/(Total\ value)$

$25= (2100)/(Total\ value)$

$Total\ value = (2100)/(25)$

Total value = 84

Therefore Twenty-one is 25% of 84 .

The expression is Twenty-one is 25% of 84

How to determine the expression as a percentage

From the question, we have the following parameters that can be used in our computation:

Twenty-one is 25% of

Represent the percentage with x

So, we have

Twenty-one is 25% of x

Mathematically, we have

21 = 25% * x

Rewrite as

25% * x = 21

So, we have

x = 21/25%

Express the percentage as decimal

x = 21/0.25

Evaluate the expression

x = 84

Hence, the number in the percentage is 84

Answers

For this case we have a function of the form:

$c (w) = mw + b$

Where,

b: initial amount
m: weekly rate of change
w: number of weeks
c: total balance

We have then that Avery has a total of $ 12.50 in her piggy bank at home:

$b = 12.50$

Each week she takes out $ 1.25 to ride the city bus:

$m = -1.25$

Substituting values we have:

$c (w) = - 1.25w + 12.50$

Answer:

an equation representing the balance, C, in the piggy bank, where w is the number of weeks is:

$c (w) = - 1.25w + 12.50$

Option C

amount now-bus=ballance
bus=number of weeks times how much taken out each time
12.5=amount now
bus=1.25w

C=12.50-1.25w
or
C=-1.25w+12.5

answer is C

-3x^2+4x+5 what are the step to finding this answer?

Answers

-3x^2+4x+5= 2x(2x+7)

Helpppppp which of the following features of the online textbook will allow you to receive extra instruction on a topic? A. Companion workbook
B. Visual glossary
C. Practice and problem solving workbook
D. Homework video tutors

Answers

Answer:

Option: D is correct.

( D. Homework video tutors )

Step-by-step explanation:

" Homework Video tutors:

Narrated by real school teachers, these online video tutorials provide students with homework help on key concepts of every lesson "

Hence, Homework video tutors are the online textbook which allow you to receive extra instruction on a topic.

Hence, option D is the correct answer.

i'd say D. because that's what a lot of mine have

hope this helped :D

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What's the answer too x+7/7x+35*x^2-3x-40/x-8

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Which products result in a perfect square trinomial? Check all that apply.A=(–x + 9)(–x – 9) B=(xy + x)(xy + x) C=(2x – 3)(–3 + 2x) D=(16 – x2)(x2 – 16) E=(4y2 + 25)(25 + 4y2)