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3 years ago

Who ran the shortest time 8.715, 8.669

Mathematics

2 answers:

Tom [10]3 years ago

4 0

Answer: I think the answer is

8.669

Aliun [14]3 years ago

4 0

Answer:

I think the answer is 8.669

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Let f(x) = 4x + 5 and g(x) = 9x − 4<br> f-g<br> (f-g)(x)=

zepelin [54]

Step-by-step explanation:

f(x) = 4x + 5, g(x) = 9x − 4

(f-g)(x) = f(x) -g(x)

=4x+5-9x+4

=-5x+9

=9-5x

8 0

3 years ago

A piece of cloth is required to completely cover a solid object. The solid object is composed of a hemisphere and a cone surmoun

Otrada [13]

Answer:

▶(B) 463.39 m²

<h3>Step-by-step explanation:</h3>

$\space$

Surface area of hemisphere = 2πr²

=> 2×22/7× (7)² = 308 m²

☯<u>For calculating the surface area of a cone we need to calculate its slant height,</u>

$\sf{ \leadsto \: 1 = \sqrt{49 + 1} = \sqrt{50 \: } m}$

$\space$

$\sf{ \leadsto \: \pi \ r1 = \frac{22}{7} \times 7 \times \sqrt{50} = 463.39 \: {m}^{2} }$

$\: \:$

Hope it helps!

Have a great day! :)

8 0

2 years ago

Determine the zeros of r=2sin5theta

vazorg [7]

Answer:

$\theta=\frac{n\pi}{5}$

Step-by-step explanation:

You have the following function:

$r=2sin5\theta$ (1)

In order to find the zeros of the function you equal to zero the equation (1), and then you solve for θ:

$2sin5\theta=0\\\\sin5\theta=0\\\\5\theta=sin^{-1}(0)=n\pi;\ \ \ \ n=0,1,2,3,..\\\\\theta=\frac{n\pi}{5}$

Then, there are infinite zeros for the function of the equation (1), because n has infinite positive integers values.

6 0

3 years ago

Money is invested into an account earning 4.25% interest compounded annually. If the accumulated value after 18 years will be $2

Lunna [17]

We are given with the following:
Effective annual interest, i = 0.0425
Future worth, F = $25000
Number of years, n = 18

We use the formula to solve for the present worth of the money:
P = F / (1 + i)^n
P = 25000 / (1 + 0.0425)^18
P = 11818.73

The closest answer is:
<span>b.
$11,820</span>

7 0

3 years ago

Read 2 more answers

Samantha and Corey are on a road trip. The first day, they drive 318 miles in 6 hours. What is their speed in miles per hour?

Setler [38]

Answer: 58 miles per hour

Step-by-step explanation:

If you divide 318 by 6 then you get how many miles were driven in that hour. so there speed was 58 miles per hour

8 0

3 years ago