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3 years ago

The Top One please ASAP first one gets brainliest only if you actually answer

Mathematics

1 answer:

NemiM [27]3 years ago

8 0

Step-by-step explanation:

3 books /minute

how many books in 3 hours

3 hours= 180 minutes

540 books in 3 hours

in 5 hours=300 minutes

900 books in 5 hours

in n hours

180*n books in n hours

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What is the height of the prism if there is 30 square centimeters and the volume is 90 cubic centimeters

sammy [17]

Answer:

the height of the prism =3cm

Step-by-step explanation:

From the question :there is 30 square centimeters, we can deduce this is the area due to the unit

the volume is 90 cubic centimeters

Volume of prism = Area of base × height

We are to determine the height

90cm³ = 30cm² × height

divide both sides by 30cm²

height = 90cm³/30cm²

height = 3cm

Therefore the height of the prism is 3centimeters

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3 years ago

Y = 3x + 5, x = -4 / So, what would the y in the equation equal to ?

3241004551 [841]

Answer:

Step-by-step explanation:

y= 3 (-4)+5

y= - 12+5

y= -7

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3 years ago

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Given: ABC is similar to XYC. If BY = 6, YC = 10, AX = 18, then XC = 10.8 5 30 48

Sidana [21]

Answer:

The correct option is 3. The length of XC is 30.

Step-by-step explanation:

It is given that triangle ABC and triangle XYC are similar.

According to the properties of similar triangles, then corresponding sides of similar triangles are congruent.

In triangle ABC and triangle XYC,

$\frac{AB}{XY}=\frac{BC}{YC}=\frac{AC}{XC}$

Let the length of XC be x.

From the below figure it is notices that

$AC=AX+XC=18+x$

$BC=BY+YC=6+10=16$

$\frac{16}{10}=\frac{18+x}{x}$

$16x=180+10x$

$6x=180$

$x=30$

Therefore correct option is 3. The length of XC is 30.

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3 years ago

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Simplify completely 12 times x to the third power minus 4 times x to the 2nd power plus 8 times x all over negative 2 times x. (

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So we want to simplify
$\frac{12 {x}^{3} - 4 {x }^{2} + 8x }{ - 2x}$
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$= - 6 {x}^{2} + 2x - 4$
The correct answer is B.

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3 years ago

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