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Stels [109]
2 years ago
8

Li believes that the graph shows a direct variation.

Mathematics
1 answer:
satela [25.4K]2 years ago
6 0

Answer:

<em>b. or 2. When the x-value is 0, the y-value is 1.</em>

Step-by-step explanation:

<em>welcome bestie <3.</em>

You might be interested in
If jill and katie share 42 chocolates in the ratio of 3:4 then how may chocolates does jill get?
nasty-shy [4]

Answer:

jil got 18 chocolates

Step-by-step explanation:

let the ratio constants be x,

so, jil has 3x chocolates

katie has 4x chocolates

and we know total chocolates = 42

then,

=》3x + 4x = 42

=》7x = 42

=》x = 42 ÷ 7

=》x = 6

so, jil got 3x = (3 × 6) = 18 chocolates

katie got 4x = (4 × 6) = 24 chocolates

5 0
2 years ago
A door of a lecture hall is in a parabolic shape. The door is 56 inches across at the bottom of the door and parallel to the flo
Arada [10]

Answer:

The parabolic shape of the door is represented by y - 32 = -\frac{2}{49}\cdot x^{2}. (See attachment included below). Head must 15.652 inches away from the edge of the door.

Step-by-step explanation:

A parabola is represented by the following mathematical expression:

y - k = C \cdot (x-h)^{2}

Where:

h - Horizontal component of the vertix, measured in inches.

k - Vertical component of the vertix, measured in inches.

C - Parabola constant, dimensionless. (Where vertix is an absolute maximum when C < 0 or an absolute minimum when C > 0)

For the design of the door, the parabola must have an absolute maximum and x-intercepts must exist. The following information is required after considering symmetry:

V (x,y) = (0, 32) (Vertix)

A (x, y) = (-28, 0) (x-Intercept)

B (x,y) = (28. 0) (x-Intercept)

The following equation are constructed from the definition of a parabola:

0-32 = C \cdot (28 - 0)^{2}

-32 = 784\cdot C

C = -\frac{2}{49}

The parabolic shape of the door is represented by y - 32 = -\frac{2}{49}\cdot x^{2}. Now, the representation of the equation is included below as attachment.

At x = 0 inches and y = 22 inches, the distance from the edge of the door that head must observed to avoid being hit is:

y -32 = -\frac{2}{49} \cdot x^{2}

x^{2} = -\frac{49}{2}\cdot (y-32)

x = \sqrt{-\frac{49}{2}\cdot (y-32) }

If y = 22 inches, then x is:

x = \sqrt{-\frac{49}{2}\cdot (22-32)}

x = \pm 7\sqrt{5}\,in

x \approx \pm 15.652\,in

Head must 15.652 inches away from the edge of the door.

8 0
3 years ago
I’m so lost guys lol send help
PtichkaEL [24]

Answer:

(x−10)(x^2+10x+100)

Explanation:

I talked to my partner, you can call them "G00gle"

3 0
3 years ago
Read 2 more answers
A trail mix recipe calls for 2/3 cup almonds and 5/8 cup raisins. blake tripled the almonds and doubled the raisins how many cup
qwelly [4]
2/3(3) = 6/3 = 2 cups almonds
5/8(2) = 10/8 = 1 1/4 cups raisins
6 0
3 years ago
What is the standard form for circles?
MrRissso [65]

Answer:circles

Step-by-step explanation:

5 0
2 years ago
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