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djyliett [7]
3 years ago
14

Help on these plzzzzz it is really hard

Mathematics
1 answer:
velikii [3]3 years ago
7 0
11.

Lateral area of a cube is 4*[(2.5)^2] = 4*6.25 = 25 cm^2;                    B

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Evaluate if a=2, b=5, C=1<br> b(4a + c²)​
kipiarov [429]

Answer:

45

Step-by-step explanation:

5(4(2)+ 1²)

5(8 + 1²)

40 + 5

45

5 0
2 years ago
Soulotion to equation if y is =15 when x=2 ,find y when x=8
skelet666 [1.2K]

Answer:

The value of y for x = 8 is 60  .

Step-by-step explanation:

Given expression as :

For x = 2  , y = 15

Let the equation be written with constant k'

So, y = k x

Or, k = \dfrac{y}{x}

∴   k =  \dfrac{15}{2}

<u>Now, again </u>

For x = 8

equation can be written as

   y = k x

Or,  y =  \dfrac{15}{2} × 8

Or,  y = \frac{15\times 8}{2}

∴    y = 15 × 4

I.e  y = 60

Hence The value of y for x = 8 is 60  . Answer

5 0
3 years ago
In 1900, there was an Olympic underwater swimming event. The score was calculated by giving one point for each second the swimme
mash [69]
68.4*1= 68.4   60.2*2= 120.4   68.4+120.4=    188.8
4 0
3 years ago
Read 2 more answers
If i am dtiving 8 miles at 55 miles per hour how long willnit take
anyanavicka [17]

Answer:

It takes 0.145 hours

Step-by-step explanation:

Given:

Distance  = 8 miles

Speed = 55 miles per hour

To Find:

Time taken = ?

Solution:

The time taken for an object to travel a particular distance  with  a  average speed can be found by

\text{Time Taken} = \frac{distance}{ speed}

Now Substituting the given values , we get

\text{Time Taken} = \frac{8}{55}

\text{Time Taken} = 0.145

Time taken will be 0.145 hours

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2 years ago
Sooo I’m a moron and reallyyy need help
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You should use photo math it can help you instantly with math problems!
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