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Lostsunrise [7]
2 years ago
15

Please help and give an explanation!:)

Mathematics
1 answer:
Serga [27]2 years ago
7 0

Answer: D) All real numbers greater than or equal to -4.

Explanation:

The lowest point occurs when y = -4, which is where the vertex is located.

The range consists of y values such that y = -4 or y > -4. We can shorten that last sentence to say y \ge -4. So y is greater than or equal to -4.

As you can probably tell, the range is the set of all possible outputs of a function.

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Can I get help with this please
drek231 [11]

Answer:

3)  1 5/6 mi

4)  a. 4 cm, 6 ft

    b. 6.4 cm, 9.6 ft

    c. same as part a

Step-by-step explanation:

3) Each of the given distances appears twice in the sum of side measures that is the perimeter. Hence by walking the perimeter twice, Kyle walks each of the given distances 4 times. His total walk is ...

  4×1/3 + 4×1/8 = 4/3 + 4/8

  = 1 1/3 + 1/2 = 1 2/6 + 3/6

  = 1 5/6 . . . . . miles

___

4) Since the figure is rectilinear (all angles are right angles, and all sides are straight lines), the sum of partial dimensions in one direction is equal to the whole dimension in that direction.

a. 8 cm = 4 cm + x

  8 cm - 4 cm = x = 4 cm

The distance in the room is ...

  (4 cm)×(1.5 ft/cm) = 6 ft

b. 10.3 cm = 3.9 cm + y

  10.3 cm - 3.9 cm = y = 6.4 cm

The distance in the room is ...

  (6.4 cm)×(1.5 ft/cm) = 9.6 ft

c. The answer to part b was obtained in the same way as the answer to part a.  The unknown dimension is the difference of given dimensions. The actual length in the room is the model length multiplied by the inverse of the scale factor.

3 0
3 years ago
Use the substitute method to solve the system of equation.choose the correct ordered pair. X+y=3 or y=8
Otrada [13]

Answer:

answer: 4 or 9

Step-by-step explanation:

5 0
3 years ago
Help please ! I’m stuck
Troyanec [42]
Y=1x-10 (sorry I could be wrong)
4 0
3 years ago
A = 1/2bh, where A is the surface area and b is the base, and H is the height.
elena55 [62]
When height turns to 3 times height or 3h

we can replace h with 3h and see what happens

A=1/2b(3h)
A=3/2bh
A=3(1/2bh)
well, the area is trippled
4 0
3 years ago
Sheila was making place-value disks. She colored 2/6 of the disks red. She colored 1/4 of the disks yellow. If she colored 40 re
Anastasy [175]

Answer:

She colored 30 yellow place value disks and 50 disks are left to color.

Step-by-step explanation:

Let total number of disks be x.

It is given that, she colored 2/6 of the disks red. She colored 1/4 of the disks yellow.

\text{Red disks}=\dfrac{2}{6}x

\text{Yellow disks}=\dfrac{1}{4}x

She colored 40 red place value disks.

\dfrac{2}{6}x=40

\dfrac{1}{3}x=40

x=120

It means total number of disks is 120.

\text{Yellow disks}=\dfrac{1}{4}x=\dfrac{1}{4}(120)=30

So, she colored 30 yellow place value disks.

Remaining disks = Total disks - Red disks - Yellow disks

               =120-30-40

               =50

Therefore, 50 disks are left to color.

8 0
3 years ago
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