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2 years ago

4. Match these equation balancing steps with the description of what was done in each step.

Mathematics

1 answer:

Archy [21]2 years ago

6 0

Answer:

step 1 - C.

step 2 - A.

step 3 - B.

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The largest mass extinction in Earth's history occurred at the end of which era? A. Paleozoic B. Mesozoic C. Permian D. Triassic

VashaNatasha [74]

Hi,

Answer: A) Paleozoic

My work: Dinosaurs died approximately 66 million years ago. The era was Paleozoic.

I Hope I Helped!

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2 years ago

Select the correct comparison set a set b O A the typical value is greater is set a the spread is greater in set b

salantis [7]

Answer:

(a)

Step-by-step explanation:

Given

See attachment for sets A and B

Required

The true statement about both sets

First, we calculate the typical values (mean) of set A and set B.

This is calculated as:

$Mean = \frac{\sum fx}{\sum f}$

For A:

$A= \frac{0*1+2*1+5*1+6*1+7*1}{1+1+1+1+1}$

$A= \frac{20}{5}$

$A =4$

For B:

$B = \frac{7 * 1 + 8 *1 + 9 * 2 + 10 * 1}{1+1+2+1}$

$B = \frac{43}{5}$

$B = 8.6$

Here, we can conclude that B has a larger typical value

Next calculate the spread (range) of sets A and B

This is calculated as:

$Range = Highest -Least$

For A:

$A = 7 - 0$

$A = 7$

For B

$B=10 - 7$

$B = 3$

Here, we can conclude that A has a larger spread.

Hence, (a) is true

6 0

2 years ago

The chance of winning the race of the horse A is 1/15 and that of horse B is 1/6. What is

irina1246 [14]

Answer:

7/30

Step-by-step explanation:

P = 1/15 + 1/6 = (2+5)/30 = 7/30

8 0

2 years ago

A TV has a listed price of $530.99 before tax. If the sales tax rate is 7.25%, find the total cost of the TV with sales tax incl

astraxan [27]

Answer:

569.49$

Step-by-step explanation:

7.25% = .0725

530.99 x 0.725 = 38.50

530.99$ + 38.50$

569.49$

8 0

1 year ago

I NEED ANSWER NOW WILL GIVE BRAINLIEST How can the formula V = Bh be used to find the volume of the desk from the Volume of Comp

tresset_1 [31]

Answer:

Step-by-step explanation:

The volume of a cylinder can be determined using the formula V = Bh where B is the area of the base of the cylinder and h is the height.

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

In the real world, calculating volume is probably not something that you will use as often as calculating area.

However it can still be important. Being able to calculate volume will enable you to, for example, work out how much packing space you have when moving house, how much office space you need, or how much jam you can fit into a jar.

It can also be useful for understanding what the media mean when they talk about the capacity of a dam or the flow of a river.

5 0

2 years ago