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Dafna11 [192]
3 years ago
10

Can someone help me with this math homework please!

Mathematics
1 answer:
mel-nik [20]3 years ago
7 0

In case of Nina:

slope of graph = speed = 48-32/6-4 = 16/2 =8

y-32 =8(x-4)

y-32=8x-32

y=8x

d=8t

at x= 0 i.e at t= 0

d= 0m

In case of Ryan:

slope =speed = 47.5-35=6-4 = 12.5/2 =6.25

y-35=6.25(x-4)

y-35=6.25x-25

y=6.25x+10

d=6.25t+10

at t = 0, d= 10m

RYAN had a head start of 10 m

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Simplify the exponential expression.
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When the given exponential expression (g³6³p⁷) / (6g²p²p) is simplified, it is equal to 6gp⁴.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The given exponential expression can be simplified as shown below.

(g³ × 6³ × p⁷) / (6 × g² × p² × p)

Using the exponential property, xⁿ × xᵇ = x⁽ⁿ⁺ᵇ⁾,

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= (6³/6) × (g³/g²) × (p⁷/p³)

Using the exponential property, xⁿ/xᵇ = x⁽ⁿ⁻ᵇ⁾

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= 6gp⁴

Hence, when the given exponential expression (g³6³p⁷) / (6g²p²p) is simplified, it is equal to 6gp⁴.

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Consider the vectors x=(1,2,3,4) and y=(4,2,4,5) in R4 . Find the angle between them.
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Answer:

Angle between the two vectors is 20.7718°.

Step-by-step explanation:

The given two vectors are x = (1,2,3,4) and y = (4,2,4,5)

Now the dot product between two vector is defined as

x.y = ║x║║y║cosθ

Now, x.y( dot product of x and y) = 1×4 + 2×2 + 3×4 + 4×5 = 40

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40 = \sqrt{30}×\sqrt{61}×Cos θ

Thus, Cos θ = \frac{40}{\sqrt{30}\sqrt{61}}

Cos θ = 0.935

θ = Cos^{-1} (0.935)

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