3 years ago

Two sides of a triangle measure 8cm and 12cm which can not be the measure of the third side?

Mathematics

1 answer:

seraphim [82]3 years ago

8 0

4cm, as if two of the sides add up to be the same length as the first side then the triangle would be a straight line.

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Ravi's age is six times that of Gaurav's. After 8 years Ravi will be twice as old as Gaurav. What are their present ages?

shusha [124]

Answer:

10 and 2

Step-by-step explanation

Nitesh is currently 10 and Ravi is currently 2

(2 times 5 is 10)

in 2 years Nitesh will be 12 and Ravi will be 4

(4 times 3 is 12)

3 0

3 years ago

Make a the subject of:<br> v = u + at

zmey [24]

Answer:

$a = \frac{v - u}{t} \:$

Step-by-step explanation:

$v = u + at$

$at = v - u$

$a = \frac{v - u}{t}$

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4 years ago

At the beginning of my bike ride I feel good, so I can travel 20 miles per hour. Later, I get tired and travel only 12 miles per

Vesnalui [34]

Answer: $3\dfrac{1}{4}$ hours

Step-by-step explanation:

Let x be the time ( in hours ) you feel good and y be the time ( in hours ) that you get tired.

As per given , we have

x+y= 8

Since : $Distance = Speed\times Time$

So , we have

20x+12y=122

According to the given question , we have the following system of equations ,

$x+y= 8--------(1)\\\\20x+12y=122------------------(2)$

Multiply 12 on both sides of equation (1) , we get

$12x+12y=96------------(3)$

Eliminate equation (3) from (2) , we get

$8x=26\\\\\Rightarrow\ x=\dfrac{13}{4}=3\dfrac{1}{4}$

Hence, you felt $3\dfrac{1}{4}$ hours good.

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3 years ago

What is the surface area of a rectangular prism that has these dimensions? 2 cm x 3 cm x 5 cm?

algol [13]

30 centimeters cubed is the answer

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3 years ago

Alaska has a land area of about 1,700,000 km² Florida has a land area 1/10 the size of Alaska what is the land area Florida

ElenaW [278]

1/10 of 1,700,000 km² is 170,000 km² .

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3 years ago