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3 years ago

I need help with this question☝

Mathematics

2 answers:

pochemuha3 years ago

5 0

all together they raised $860.81

Iteru [2.4K]3 years ago

4 0

The 3 classes raised 1109.81.

In order to find this we need to start with information we know.

Moore's class: 249

Now we know Aguilar's class is Moore's class + 396.62

Moore + 396.62

249 + 396.62 = 645.62

And we know that Barry's class is Aguilar's class - 430.43

Aguilar - 430.43

645.62 - 430.43 = 215.19

Now we can add all 3 numbers together to get the final answer.

249 + 645.62 + 215.19 = 1109.81

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A locker combination has three nonzero digits, with no repeated digits. If the first digit is a 2, what is the probability the s

Nezavi [6.7K]

I think it would be 3/8 :))

5 0

3 years ago

Which expressions can be used to find m∠ABC? Check all that apply.

valina [46]

Answer:

$\cos^{-1}(\frac{6.3}{9.8})$

$\sin^{-1}(\frac{7.5}{9.8})$

Step-by-step explanation:

Recall the mnemonics SOH-CAH-TOA

The sine ratio is the length of the opposite side expressed over the hypotenuse.

$\sin m\angle ABC=\frac{7.5}{9.8}$

Take the sine inverse of both sides to get;

$m\angle ABC=\sin^{-1}(\frac{7.5}{9.8})$

The cosine ratio is the length of the adjacent side expressed over the hypotenuse.

$\cos m\angle ABC=\frac{6.3}{9.8}$

Take the cosine inverse of both sides to get;

$m\angle ABC=\cos^{-1}(\frac{6.3}{9.8})$

4 0

4 years ago

A cylinderical container of height 28cm and diameter 18cm is filled with water. The water is then poured into another container

tiny-mole [99]

Answer:

h = 24 cm

Step-by-step explanation:

volume of water in the cylinder = volume of water in the rectangular base container

But ,

volume of cylinder = $\pi$ $r^{2}$ h

where: is the radius and h is the height.

volume of cuboid = length x width x height

= l x w x h

So that;

$\pi$ $r^{2}$ h = l x w x h

But, r = $\frac{diameter}{2}$ = $\frac{18}{2}$ = 9 cm, height of cylinder = 28 cm, length = 27 cm, width = 11 cm, $\pi$ = $\frac{22}{7}$ .

Thus,

$\frac{22}{7}$ x $(9)^{2}$ x 28 = 27 x 11 x h

$\frac{22}{7}$ x 81 x 28 = 27 x 11 x h

7128 = 297h

h = $\frac{7128}{297}$

= 24

h = 24 cm

The depth of the water in the container is 24 cm.

5 0

3 years ago

Someone please help me with the question. And please look at the picture. I WILL MARK BRAINLIEST!

vovangra [49]

Answer: D

Step-by-step explanation:

6 0

4 years ago

It is a collection or set of units or

tatyana61 [14]

Answer:

Population.

Step-by-step explanation:

Population can be defined as a collection or set of units or entities from whom we got the data.

This ultimately implies that, a population is the larger set from which other units can be picked from.

Hence, a population is an entire collection of outcomes or objects from which we can obtain or collect data. For example, the number of new born babies in a hospital, a country and the total number of football players in a soccer league.

Population = Movies.

Subset (sample) = comedy movies, horror movies, romance movies, and action movies.

3 0

3 years ago