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2 years ago

V=u + at u= 2 a = -5 t = Î 2 Work out the value of v.

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

4 0

Answer:

Step-by-step explanation:

a = 5 n, Î = 5 n, t = -2 n, u = 5 n, n element Z

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5. Melanie can run around the track 9 times

Zina [86]

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2 years ago

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The circular blade on a saw has a diameter of 7.5 inches and rotates at 2400 revolutions per minute.

Archy [21]

For a:

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For b:

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3 years ago

Find the length of the base of a square pyramid if the volume is 48 cubic inches and has a height of 9 inches.

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3 years ago

Express the following number in decimal notation<br> 8.41 x 10 --4

jolli1 [7]

Answer:

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Step-by-step explanation:

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2 years ago

Look at pic and answer pls

PtichkaEL [24]

(a) $x^{-5}$

(b) $3x^{-7}$

Solution:

To write each of the given expression in the form $ax^n$ :

(a) $\frac{x^3}{x^8}$

Using exponential rule: $\frac{a^x}{a^y}=a^{x-y}$

$$\frac{x^3}{x^8}=x^{3-8}$

$$\frac{x^3}{x^8}=x^{-5}$

(b) $\frac{6x}{2x^8}$

Divide numerator and denominator by the common factor 2, we get

$$\frac{6x}{2x^8}=\frac{3x}{x^8}$

Using exponential rule: $\frac{a^x}{a^y}=a^{x-y}$

$$=3x^{1-8}$

$$\frac{6x}{2x^8} =3x^{-7}$

Divide numerator and denominator by the common factor 7, we get

$$\frac{28x^6}{21x^2}=\frac{4x^6}{3x^2}$

Using exponential rule: $\frac{a^x}{a^y}=a^{x-y}$

$$=\frac{4}{3}x^{6-2}$

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2 years ago