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3 years ago

The vertex of this parabola is at (5, -4). Which of the following could be its equation.

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

Since the y coordinate of the vertex is -4, it has to be the rest of the equation subtracted by 4, which eliminates A and C.

Adding 5 puts it on the left side, so you have to subtract 5.

Then you add all the default info and the info we found out.

y = 2(x-5)^2-4

So technically by process of elimination, B must be the answer.

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If one cubic foot of water weighs 62 1/2 pounds how much do 3 1/5 cubic feet of water weighs?

KiRa [710]

Answer:

3 1/5 cubic feet of water weighs 200 pounds

Step-by-step explanation:

1. Take 62 1/2 into decimal form: 62 1/2 = 62.5

2. Take 3 1/5 into decimal form: 3 1/5 = 3.2

3. Multiple 62.5 by 3.2: 62.5 x 3.2 = 200

The answer is 200 pounds.

5 0

3 years ago

Please help me find the area of compound shapes?!?!

antoniya [11.8K]

Answer:

$27cm^{2}$

Step-by-step explanation:

Area of compound shapes = Area of shape A + Area of shape B

Area of this shape = (L x B) + (L x B)
= (5 x 3) + (6 x 2)
= 15 + 12
= $27cm^{2}$

4 0

2 years ago

Read 2 more answers

Help me I beg u! The pre-image coordinates of a triangle are J(-6,9), K(-6,4), and L(-3,4). The coordinates of the transformed t

Elena-2011 [213]

Answer:

A. Translation

Step-by-step explanation:

Given

Preimage

$J = (-6,9)$

$K = (-6,4)$

$L = (-3,4)$

Image

$J' = (2,9)$

$K' = (2,4)$

$L' = (5,4)$

Required

Which transformation occurred

The transformation that occurs is translation because each of the preimage were translated or shifter right by 8 units.

The rule applied here is:

$(x,y)=>(x+8,y)$

So, we have:

$J = (-6,9)$ $==> (-6+8,9) = (2,9)$

$K = (-6,4)$ $==> (-6+8,4) = (2,4)$

$L = (-3,4)$ $==> (-3+8,4) = (5,4)$

<em>Hence, the transformation is (a) Translation</em>

4 0

3 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!

kipiarov [429]

Answer:

solution,

Angles in a straight line ( linear pair)= 180°

180°-110°=70°

Now,

Sum of angle in triangle= 180°

$70 + x + x + 70 = 180 \\ or \: 70 + 2x + 70 = 180 \\ or \: 140 + 2x = 180 \\ or \: 2x = 180 - 140 \\ or \: 2x = 40 \\ or \: x = \frac{40}{2} \\ x = 20$

Hope this helps...

Good luck on your assignment...

8 0

3 years ago

Find the value of "Y" if;<br>Y-3 [4-2Y] = 16

Ivanshal [37]

Answer:

y=4

Step-by-step explanation:

hello :

Y-3 (4-2Y) = 16

y-12+6y = 16

7y-12=16

so :7y =12+16

7y=28

y=28/7 =4

4 0

3 years ago