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3 years ago

12

(2y-5)(5y+7) answer this quickly lol

2 answers:

Stolb23 [73]3 years ago

8 0

Well this is a little tricky.. But my guess would be: <span>y = (-1.4, 2.5)</span>

kirza4 [7]3 years ago

7 0

What you need to do to solve this problem is by using the FOIL Method (First, Outside, Inside, and Last) Here are the steps into doing this problem.
Given Answer: (2y-5)(5y-7)
Next, you multiply by the order that has been given: 10y^2 + 14y -25y - 35
After you got the numbers and coefficients, you can combine like terms if necessary: 10y^2 - 11y - 35
Therefore, your answer should be 10y squared - 11y - 35.
I hope this helps. :)

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qwelly [4]

Answer: (0, -2)

Step-by-step explanation:

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3 years ago

Help Asap plz!!!! Thx Give 2<br>0 points

Arisa [49]

Answer:

(1,2) is a solution to both equations

Step-by-step explanation:

To determine if (1,2) is a solution to both equations, substitute into the equation and see if it is true

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2+2 =4

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true

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Since both statements are true

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3 years ago

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up. The

Nikolay [14]

The length of the ladder nearest hundredth of a foot is 23 feet.

We have given that,

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up.

The ladder makes an angle of $77^{\circ}$ the ground.

<h3>What is the sin ratio?</h3>

$sin(\theta)=\frac{perpendicular \ side}{hypotenous}$

Therefore we get,

$\implies\frac{22}{H} =sin(77)$

$\implies H=22/sin(77)$

$\implies 22.59ft\\\\=23ft$

Therefore, The length of the ladder nearest hundredth of a foot is 23 feet.

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brainly.com/question/24349828

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2 years ago

The velocity,v of a missile is related to time t, By the equation v=5t^2+3t+1.calculate the time at which the velocity is minimu

Cloud [144]

Answer:

time: t = -0.3
minimum: v = 0.55

Step-by-step explanation:

For quadratic ax^2 + bx + c, the extreme value is found at x=-b/(2a). For your quadratic, the minimum is found at ...

t = -(3)/(2(5))

t = -0.3 . . . . . time of minimum velocity

__

The value of velocity at that time is ...

v = 5(-0.3)^2 +3(-0.3) +1 = 5(.09) -.9 +1

v = 0.55 . . . . . value of minimum velocity

3 0

3 years ago

How many times does 70 go into 2,800

WINSTONCH [101]

Answer:

40

Step-by-step explanation:

6 0

2 years ago

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