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vagabundo [1.1K]
3 years ago
13

The value of a car depreciates by 30%. It originally cost £8000? What is it's value now ?

Mathematics
1 answer:
fenix001 [56]3 years ago
7 0
£8,000 x 0.7 = £5,600
value now is <span>£5,600</span>
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2(4x + 1) - 3(5x - 1)<br> expand and simplify
Temka [501]

Answer:
-7x + 5

Step-by-step explanation:

2(4x + 1) - 3(5x - 1)

8x + 2 - 3(5x-1)
8x + 2 - 15x + 3
8x + 5 - 15x
-7x + 5

Hope it helped !
Adriel

6 0
2 years ago
X(x-4)+y(y-10)=-29 x;y=?
zaharov [31]
X sqrd-4x+y sqrd-10= -29
y sqrd-10y = -29-X sqrd + 4X
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3 years ago
Only do question 4<br><br> 50 points<br><br> Topic: Percentage
Sergeu [11.5K]

Answer:

a 1

b 6

c 15

Step-by-step explanation:

101% 101/100 = 1 1/100

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4 0
3 years ago
What is 12 ten thousand 8 thousands 14 hundreds 7 ones
CaHeK987 [17]

Answer:

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5 0
3 years ago
If a simple harmonic motion is described by x = 3 cos(πt), starting from t = 0 s, what is the first occurrence of a value of t f
poizon [28]

Answer:

The first occurence of t for which x = 0 is t = 0.5.

Step-by-step explanation:

The harmonic motion is described by the following equation.

x(t) = 3\cos{\pi t}

What is the first occurrence of a value of t for which x = 0?

This is t when x(t) = 0. So

x(t) = 3\cos{\pi t}

3\cos{\pi t} = 0

\cos{\pi t} = \frac{0}{3}

\cos{\pi t} = 0

The inverse of the cosine is the arcosine. So we apply the arcosine function to both sides of the equality.

\arccos{\cos{\pi t}} = \arccos{0}

\pi t = \frac{\pi}{2}

t = \frac{\pi}{2 \pi}

t = \frac{1}{2}

t = 0.5

The first occurence of t for which x = 0 is t = 0.5.

3 0
3 years ago
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