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Monica [59]
3 years ago
15

NEED ANSWERS NOW!! (Reward) brainlest and pointsss

Mathematics
2 answers:
Sladkaya [172]3 years ago
4 0

Answer:

B

Step-by-step explanation

f(x)=x2-4x-5

Becomes

f(x)=x2-5x+x-5

Take out the common factor

f(x)=(x-5)(x+1)

Equate the given function equal to 0

0=(x-5)(x+1)

And then

x-5=0 -- x=5

x+1 = 0 == x=-1

Wewaii [24]3 years ago
3 0

Answer:

B

Step-by-step explanation:

we are given a quadratic function

we want to figure out the form which we don't need change

so according to the question

\displaystyle{x}^{2}  - 4x - 5 = 0

rewrite -4x as x-5x:

\displaystyle{x}^{2}   + x - 5x- 5 = 0

factor out x:

\displaystyle \: x({x}^{}   + 1)- 5x- 5 = 0

factor out -5:

\displaystyle \: x({x}^{}   + 1)- 5(x  + 1  )= 0

group:

\displaystyle \: (x  + 1  )(x - 5)= 0

hence our answer is B

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Answer:

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3 years ago
5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

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3 0
3 years ago
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100 Points! Question Urgent!!!!!!
Ann [662]

Answer:

9

Step-by-step explanation:

<u>→You can use the Pythagorean Theorem to solve this, by plugging in the numbers, like so:</u>

<u />a^2+b^2=c^2\\x^2+(x-3)^2=(x+3)^2

x^2+x^2-6x+9=x^2+6x+9

<u>→Subtract </u>x^2-6x+9<u> from both sides:</u>

x^2 = 12x

<u>→Subtract 12x from both sides:</u>

<u />x^2 -12x=0

<u>→Factor out x:</u>

<u />x(x-12)=0

<u>→Separate, set = to 0, and solve:</u>

<u />x = 0\\x -12=0        →      <u>Add 12 to both sides:</u>        x = 12

→So we have 0 and 12, as our answers. However, we cannot have 0 as a side length, since this would not be possible.

→All we need to do is take 12, and plug it into the equation for the shortest leg.

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3 years ago
For the figures shown, FHJL ~ NPRS. The scale factor applied to FHJL to create NPRS is 4 to 3.
GrogVix [38]

Remark

For every 3 units for NP will be 4 units. You can set up a proportion.

\dfrac{3}{4} = \dfrac{45}{NP}\text{Cross Multiply}

3*NP = 4*45

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NP = 180/3

NP = 60

Answer C

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3 years ago
Carly buy a new house for 125,000 the value of the house appreciate approximately 3.5% each year what will be the value of a hou
m_a_m_a [10]
Y=125,000 (1+.035)^10
Y=125,000 (1.035)^10
Y=125,000 (1.410598716) or 125,000 (1.41)
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7 0
3 years ago
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