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2 years ago

Write a standard form of a quadratic equation that has roots - 5/2 and 3.

Mathematics

1 answer:

lora16 [44]2 years ago

6 0

Answer:

2x^2 - x - 15 = 0.

Step-by-step explanation:

In factor form this is

(x + 5/2)(x - 3) = 0

x^2 + 5/2x - 3x - 15/2 = 0

x^2 - 1/2x - 15/2 = 0

Multiply through by 2:

2x^2 - x - 15 = 0.

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Answer:12a

Step-by-step explanation:

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2 years ago

Functions assignment Y= 2/3x+20 When x=21 what is the function and solution

Nonamiya [84]

Answer:

y = 2/3 (21) + 20 (plug it in and multiply)

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Step-by-step explanation:

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3 years ago

Help Please ( and leave on how you solved it ) ":( view pic below

Anton [14]

Answer:

The value of x = 10.

Step-by-step explanation:

From the given triangle,

The value of angle M = (3x + 28)°

The value of angle K = (5x - 18)°

The value of angle L = 90°

We know that the sum of a triangle is 180°.

i.e.

K + L + M = 180°

(5x - 18)° + 90° + (3x + 28)° = 180°

$5x-18+90+3x+28=180$

$5x+3x-18+90+28=180$

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$8x+100=180$

$8x=80$

$\frac{8x}{8}=\frac{80}{8}$

$x=10$

Therefore, the value of x = 10

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2 years ago

Graph the linear equation

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Answer:

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Step-by-step explanation:

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3 years ago

Which two integers is 115 between?

Lady_Fox [76]

Answer:

115 is between 114 and 116 because they are the integers that are directly bigger than 115 and smaller than 115.

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