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3 years ago

15

Factor the quadratic. 2x^2+9x+10

1 answer:

erastovalidia [21]3 years ago

8 0

Answer: (x + 2) (2x +5)

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Hello its my birthday please help me !!

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Answer:

3

Step-by-step explanation:

4^6×12=4^10×

6×12=10×

6×-10×= -12

-4×=-12

x=3

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2 years ago

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3 years ago

Which of the following equations have exactly one solution?

Arturiano [62]

Answer:

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Step-by-step explanation:

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3 years ago

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Solve this system of linear equations. Separate

attashe74 [19]

Answer:

$(-\frac{7}{13},\frac{79}{13})$

Step-by-step explanation:

Given:

Two equations are given.

$- 7x + 3y = 22$ ------(1)

$4x + 2y = 10$ ----------(2)

Solve equation 1 for y.

$- 7x + 3y = 22$

$3y = 22+7x$

$y=\frac{22+7x}{3}$ -----------(3)

Now, we substitute y value in equation 2.

$4x + 2(\frac{22+7x}{3}) = 10$

$\frac{12x + 2(22+7x)}{3} = 10$

$12x + 2(22+7x)=10\times 3$

$12x + 44+14x=30$

$26x=30-44$

$26x=-14$

$x=-\frac{14}{26}$

$x=-\frac{7}{13}$

Now, we substitute x value in equation 1.

$- 7(-\frac{7}{13}) + 3y = 22$

$\frac{7\times 7}{13} + 3y = 22$

$\frac{49}{13} + 3y = 22$

$3y = 22-\frac{49}{13}$

$3y = \frac{13\times 22-49}{13}$

$3y = \frac{286-49}{13}$

$y = \frac{237}{13\times 3}$

$y = \frac{237}{39}$

$y = \frac{79}{13}$

Therefore, the value of x and y is $(x=-\frac{7}{13},y = \frac{79}{13})$

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4 years ago

Manuel is filling water balloons at a constant rate of 3 water balloons per minute.With the given information,which of these sta

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It took him 20 seconds to fill out each one of those balloons. 20x3=60 seconds= 1 minute

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3 years ago

Read 2 more answers