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Dennis_Churaev [7]
3 years ago
12

Please ignore my work and show step by step for number 9 please and thank you

Mathematics
1 answer:
Butoxors [25]3 years ago
5 0

( x + 3)( x  - 7) + (x + 8)(x + 3) = (x + 3)(x - 7 + x + 8) \\  = (x + 3)(2x + 1)

(3) is the answer?

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If g(x)=4x2-16 were shifter 5 units to the right and 2 down, what would the new equation be?
Tatiana [17]
G(x)=4x^2-16

To shift to the right we have to subtract from the value of x, in this case by 5 units...

h(x)=4(x-5)^2-16

h(x)=4(x^2-10x+25)-16

h(x)=4x^2-40x+100-16

h(x)=4x^2-40x+84

Now to shift the function downwards by 2 units we must subtract the constant 2 from h(x)

h(x)=4x^2-40x+84-2

h(x)=4x^2-40x+82
6 0
3 years ago
What is the original price if there is a 45% discount and the sale price is $550?
Svetradugi [14.3K]

Original price×(1-discount price)=new price or sale price so

Put x in original price...x(1-45/100)=550

So the original price is 1000

3 0
3 years ago
Simplify the problem thank you
NikAS [45]

Given the expression:

\displaystyle \large{ \sqrt[3]{ - 125} }

Definition:

\displaystyle \large{ y  = \begin{cases}   \pm \sqrt[n]{x}  \longrightarrow n  = (2,4,6,8,...)  \:  \: (x \geqslant 0) \\   \sqrt[n]{x}\longrightarrow n = (1,3,5,7,...) \:  \: (x \in \R) \end{cases}}

First, factor the -125. -125 comes from (-5)×(-5)×(-5) or (-5)^3.

\displaystyle \large{ \sqrt[3]{ ( - 5) \times ( - 5) \times ( - 5)} }

Because if (-5)^2 = 25 then 25×(-5) again will be -125.

Since this is the cube root, we have to pull out 3 terms in one. There are 3 fives that we can take off and therefore,

\displaystyle \large \boxed{ - 5}

5 0
3 years ago
Read 2 more answers
ests for tuberculosis like all other diagnostic tests are not perfect. QFT-G is one of such tests for tuberculosis. Suppose that
Brut [27]

Answer:

P(POSc/Sc)

Step-by-step explanation:

As,

POS= Test has positive results

and

S=Adult has tuberculosis.

The test correctly identifies 74.6% of the time adults with a tuberculosis and correctly identifies those without tuberculosis 76.53% of the time.

In the above statement 76.53% describes the probability of adult who don't have tuberculosis gets the negative results as test is correctly identifying.

So, getting negative results means that not positive results and for this event the notation of complement POSc is used. Also, not having tuberculosis can be denoted as Sc. So,

POSc= Test has negative results

Sc=Adult hasn't tuberculosis

Thus, P(POSc/Sc) depicts the probability of adults not having tuberculosis gets correct results.

Hence,  P(POSc/Sc)=76.53%

3 0
3 years ago
PLEASE ANSWER THIS QUESTION CORRECTLY AND I WILL MARK YOU AS THE BRAINLIEST
cluponka [151]

Answer:

2.    (x - 4)^2 = 23

Step-by-step explanation:

x^2 - 8x - 7 = 0

x^2 - 8x ~~~~~ = 7

x^2 - 8x + 16 = 7 + 16

(x - 4)^2 = 23

8 0
3 years ago
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