3 years ago

Which of the following is an example of a quadratic equation?

Mathematics

1 answer:

lyudmila [28]3 years ago

6 0

its b

Step-by-step explanation:

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Use intercepts to graph 3y = -5x -30

disa [49]

The final solution is y=-5/3x-10

3 0

3 years ago

Can someone pls help me!

Sedbober [7]

Answer: y =2x-5

Work:

2x-y=5

-y=-2x+5

-1y/-1 = -2x+5/-1

y =2x-5

5 0

3 years ago

Please help i need answer and explanation.

allsm [11]

Answer:

m<TVZ = 95

Step-by-step explanation:

2x+15+2x+5= 180

4x+20 =180

-20 -20

4x=160

x= 40

2x+15= m<TVZ

2(40)+15 = m<TVZ

80+15 = m<TVZ

95 = m<TVZ

To check:

2x+5= <WVZ

2(40)+5 = <WVZ

80+5 = <WZV

85+95 = 180

The two angles together should equal 180. Comment if you have any questions :)

6 0

3 years ago

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If one of the roots of the quadratice quation x2+kx-12=0is4,what is the value of k?

uysha [10]

<h3>Given Equation:</h3>

$\huge \purple {\rm { {x}^{2} + kx - 12 = 0}}$

<h3>Value:</h3>

$\huge \purple {\rm {x = 4}}$

$\huge \purple {\rm {The \: value \: of \: k.}}$

<h3>Solution:</h3>

$\huge \purple {\rm { {(4)}^{2} + k(4) - 12 = 0}}$

$\huge \purple {\rm {or, \: 16 + 4 k - 12 = 0}}$

$\huge \purple {\rm {or, \: 4k = - 4}}$

$\huge \purple {\rm {or, \: k = \frac{ - 4}{4} = - 1}}$

<h2>Answer:</h2>

$\huge \purple {\sf {The \: value \: of \: k \: is \: -1}}$

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3 years ago

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Please help, I'll give brainliest!! Tysm

zmey [24]

Answer:

Step-by-step explanation:

Negative exponents on the top is equivalent to them being positive in the bottom.

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3 years ago

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