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2 years ago

5

Please help can't figure this out to save the life of me.

2 answers:

Lorico [155]2 years ago

5 0

-2x+5 goes into box PARALLEL TO A, and 1/2x+7 goes into box PERPENDICULAR

bogdanovich [222]2 years ago

3 0

An equation written in slope-intercept form is y=mx+b, where m is a constant equal to the slope. Parallel lines have the same slope. So a line parallel to y=-2x+3 is y=-2x+5. Perpendicular lines have slopes which are negative reciprocals of each other. So a line perpendicular to y=-2x+3 is y=1/2x+7. y=2x-1 is neither parallel of perpendicular to y=-2x+3.

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Is 91235 divisible by3

DiKsa [7]

91,235/3 = 30,411.6 repeating
No, it is not divisible.

4 0

2 years ago

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Kevin is 333 times as old as Daniel. 444 years ago, Kevin was 555 times as old as Daniel. How old is Kevin now?

My name is Ann [436]

Let D be Daniel's present age, then we can represent Kevin's present age as 3D because Kevin is 3 times as old as Daniel.

We can write an expression for Daniel's age 4 years ago as D-4 and Kevin's age 4 years ago as 3D-4.

We are told that 4 years ago Kevin was 5 times as old as Daniel. We can write this information as:

$3D-4=5\cdot(D-4)$

Now let us solve our equation to find Daniel's present age.

$3D-4=5D-20$

$-4+20=5D-3D$

$16=2D$

$D=\frac{16}{2}=8$

Daniel's present age is 8 years. Now we will multiply 8 by 3 to get Kevin's present age as Kevin is 3 times old as Daniel.

$\text{Kevin's present age}=8\cdot3=24$

Therefore, Kevin is 24 years old now.

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2 years ago

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What is the equation of the quadratic graph with a focus of (3, 4) and a directrix of y = 8? (1 point)

Marta_Voda [28]

This question was already answered this is what the other person got.

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2 years ago

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8 is what percent of 2500

Nataly [62]

8 percent of 2500 is 200.

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2 years ago

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Please help with all of question 4.

olga55 [171]

Answer:

Step-by-step explanation:

Combine like terms: Like terms have same variable with same power and to combine the like terms, add/subtract the co efficient of the variables.

<h3>Perimeter:</h3>

Perimeter = sum of all sides

a) Perimeter of ΔABC = AB + BC + CA

= x + 14 + x + 14 + x + 14

= x + x + x + 14 + 14 + 14 {Combine like terms}

= 3x + 42

b) EF = DI - GH

= 2x + 3 - x

= 2x - x + 3

= x + 3

c) FG = HI - ED

= 12 + 2x - (x + 5)

= 12 + 2x - x - 5 {To open the brackets, (-1) is distributed to x and 5}

= 12 - 5 + 2x - x

= 7 + x

d) Perimeter of DEFGHI = DE + EF + FG + GH + HI + ID

= x + 5 + x + 3 + 7 +x + x + 12 +2x + 2x + 3

= x +x + x + x + 2x + 2x + 5 + 3 + 7 + 3 + 12

= 8x + 30

6 0

1 year ago