3 years ago

Calculate the value of x. Show work on your work paper. (round to the

Mathematics

1 answer:

kumpel [21]3 years ago

8 0

Answer:

the answer is 1,9 I guess

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Which of the following is the standard form of the equation 5x2 - 20x = 15?

Finger [1]

x= +7 or x=2-7 let me know if you need an explanation <3

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3 years ago

What is the equation of a parabola in vertex form for a line that passed through (5,-4) and has vertex (-2,5)

Ahat [919]

$\text{The vertex form of a parabola}\\\\y=a(x-h)^2+k\\\\\text{We have the vertex}\ (-2,\ 5)\to h=-2,\ k=5.\\\\\text{Substitute}\\\\y=a(x-(-2))^2+5=a(x+2)^2+5\\\\\text{We have the point}\ (5,\ -4).\\\text{Substitute the coordinates of the point to the equation:}\\\\-4=a(5+2)^2+5\\\\-4=a(7)^2+5\\\\-4=49a+5\qquad|-5\\\\-9=49a\qquad|:49\\\\a=-\dfrac{9}{49}\\\\Answer:\ \boxed{y=-\dfrac{9}{49}(x+2)^2+5}$

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4 years ago

A rectangular parking lot has a perimeter of 232 feet. the length of the parking lot is 36 feet less then the width. find the le

Troyanec [42]

Answer:

Length: 40 Width: 76

Step-by-step explanation:

W is width, and L is length.

We know that the length is 36 less than the width, so L = w - 36. Two times the width plus two times the length equals the perimeter, so set up the equation for the perimeter as:

232 = 2w + 2(w-36)

Now solve for w:

232 = 2w + 2w - 72

304 = 4w

w = 76

we now know that the width is 76, so solve for the length:

L= 76-36

L = 40

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3 years ago

What is the value of x?<br> x+10<br> 105

sashaice [31]

X+10=105
105-10=95=x
x = 95

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3 years ago

1. On a train, it takes 3 days, 5 hours, and 15 minutes to get to from Denver to Seattle by train. How many hours does it take t

jarptica [38.1K]

For
1. its
D=Days
H=Hours
M=Minutes
3d+5h+15m
3d=72h+5h
72h+5h=77h
77h+15m=77h.15m
But i only have this one right now sorry :P

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3 years ago