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3 years ago

Look at the image below

Mathematics

1 answer:

Artyom0805 [142]3 years ago

8 0

Answer:

subtotal 9.76

Step-by-step explanation:

i can tell the last 2

hope this helps

pls mark brainliest

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Vesnalui [34]

Answer:

with what?

Step-by-step explanation:

5 0

3 years ago

The radius of a sphere-shaped balloon increases at a rate of 2 centimeters (cm) per second. If the surface area of the completel

frez [133]

Considering the surface area of the spherical ballon, it will take 7 seconds for the the balloon to fully inflate.

<h3>What is the surface area of a sphere?</h3>

The surface area of a sphere of radius r is given by:

$S = 4\pi r^2$

In this problem, the surface area is of $784\pi$ cm², hence the radius in cm is found as follows:

$784\pi = 4\pi r^2$

$4r^2 = 784$

$r^2 = \frac{784}{4}$

$r^2 = 196$

$r = \sqrt{196}$

r = 14 cm.

The radius start at 0 cm, inflating at a rate of 2 cm/s, hence it will take 7 seconds for the the balloon to fully inflate, as 14 cm/(2 cm/s) = 7 s.

More can be learned about the surface area of a sphere at brainly.com/question/21207980

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4 0

2 years ago

Work out 25% of 20 metres

Bumek [7]

<span>25% of 20 meters
</span>25%=1/4 so 1/4 of 20 is 5 meters

6 0

3 years ago

Read 2 more answers

PLEASE HELP!! GIVING 20 PTS!!

Iteru [2.4K]

Answer:

1. a translation of (-1,3)

2. a reflection across a line through points (0,4) and (3,4)

5 0

3 years ago

What are the parents points for the equation f(x) = 3^x?

ryzh [129]

Answer:

(0, 1) and (1, 2)

Step-by-step explanation:

${ \rm{f(x) = {3}^{x} }}$

• Assume f(x) is one

${ \rm{ {3}^{x} = 1}}$

• Apply logarithms:

${ \rm{x log(3) = log(1) }} \\ \\ { \rm{x = 0 }}$

• Assume f(x) is 2

${ \rm{x = \frac{ log(2) }{ log(3) } }} \\ \\ { \rm{x = 1}}$

3 0

2 years ago