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KiRa [710]
2 years ago
8

A statistician predicts that the probability of a race car driver winning their next race is 9/10. What are the odds against the

m winning?
Mathematics
1 answer:
SOVA2 [1]2 years ago
7 0

Answer:

90%

Step-by-step explanation:

We know that

9/10

is the same as

9÷10

Then using

Long Division for 9 divided by 10

gives us

0.9

Converting our number to a percentage:

0.9×100

=90%

(Note this isnt rounded up.)

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The value of a car decreases by 7.2% each year.
Gelneren [198K]

The car will be worth after one year is £ 5753.6.

<h3>What is exponential function?</h3>

An exponential function is defined by the formula f(x) = a^{x}, where the input variable x occurs as an exponent. The exponential curve depends on the exponential function and it depends on the value of the x.

The exponential function is an important mathematical function which is of the form

f(x) =  a^{x}

Where a > 0 and a is not equal to 1.

x is any real number.

Given

Car cost when bought A =  £ 6200

Value of a car decreases by 7.2% each year.

n = 1

r = 7.2% or 0.072

The car will be worth after one year

y= A (1-r)^{n}

⇒ y =6200(1-0.072)^{1}

⇒ y = 6200(0.928)

⇒ y = £ 5753.6

Hence, the car will be worth after one year is £ 5753.6.

Learn more about exponential function here

brainly.com/question/11487261

#SPJ2

8 0
1 year ago
Read 2 more answers
For x greater than or equal to zero and less than or equal to 2 pi, sin x and cos x are both decreasing on the intervals
klemol [59]
You made one? Oml.. You could of just texted me. It's B
3 0
3 years ago
Whats the surface area and a sphere with a 3 foot diameter
vlabodo [156]

Answer:

A=4πr2= 4·π·1.52≈ 28.27433

3 0
2 years ago
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Find the volume of each hemisphere. Round to the nearest tenth.<br> 6.8 ft
soldi70 [24.7K]

Answer:

Step-by-step explanation:

if r is the radius of a hemisphere then

volume of hemisphere=(2/3)πr³

volume =\frac{2}{3} \pi r^3=\frac{2}{3}\pi (6.8)^3 \approx 209.6~ft^3

6 0
2 years ago
A roll of material is (x + 2) metres wide. Annie buys (x + 3) metres of the material and Bronwyn buys 5 metres of the material.
Ksenya-84 [330]

Annie and Bronwyn buy two rectangles of material.

The width is common and it is x+2.

The height of Annie's rectangle is x+3, the height of Bronwyn is 5.

Since the area of a rectangle is the product of width and height, Annie's rectangle has an area of

A = (x+2)(x+3)

And Bronwyn's rectangle has an area of

B = 5(x+2)

If Annie bought more than Bronwyn, the difference is

A-B = (x+2)(x+3)-5(x+2) = (x+2)[(x+3)-5] = (x+2)(x-2)

You can write this expression as you prefer: (x+2)(x-2)=x^2-4

Question (d) represents the situation

A=B+5 \implies (x+2)(x+3)=5(x+2)+5

We can manipulate and solve this equation as follows:

(x+2)(x+3)=5(x+2)+5 \iff x^2+5x+6=5x+15 \iff x^2-9=0 \iff x = \pm 3

We can't accept the solution x = -3 because it would lead to negative dimensions. So, we have x=3, which implies the following dimensions and area:

A = (x+2)(x+3) = 5\cdot 6 = 30

B = 5(x+2) = 5\cdot 5 = 25

which indeed means that Annie has 5 squared meters more material than Bronwyn.

8 0
3 years ago
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