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aleksandr82 [10.1K]
3 years ago
13

What is the value of 2m^2+12 when m = 3? 24 30 37 38

Mathematics
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

30

Step-by-step explanation:


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A cyclist travels 12 km from home to the park.
Leno4ka [110]

Answer:

Speed = 24 km/h

Step-by-step explanation:

Speed =  Distance / Time

A cyclist travels 12 km from home to the park.

She leaves home at 13:00 and arrives at the park at 13:30.

Distance = 12 km

Time = 0.5 Hours

Speed =  12 / 0.5

Speed = 24 km/h

3 0
3 years ago
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Find the area of the given triangle. Round the answer to the nearest tenth.
lions [1.4K]
Using Heron's formula:
A = √(p(p-a)(p-b)(p-c)) where a,b,c are the sides of the triangle and p is half the perimeter.
The answer is B. 149.4 square units.
3 0
3 years ago
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Sasha buys two ribbons of equal length. She cuts 9 pieces of the same length, L, from the first ribbon and finds that 5 inches a
nikitadnepr [17]

Answer:

50 inches.

Step-by-step explanation:

Let the length of the each ribbon was x.

Now, she cuts 9 pieces of same length L which means total length is 9L.

Now, doing the same she was left with 5 inches of ribbon. Hence, we have

[tex[9L+5=x.....(1)[/tex]

Similarly, we can write a equation for the second situation.

2L+40=x......(2)

From equation 1 and 2,

9L+5=2L+40\\\\7L=35\\\\L=5

Plugging this value in equation 1,

9(5)+5=x\\\\x=45+5\\x=50

Therefore, the length of each ribbon when she bought them was 50 inches.

3 0
4 years ago
Line 1 passes through the points (-4, -6) and (12,2). line 2 passes through the points (-6,-2) and (-2,0). Do the lines intersec
kifflom [539]

The lines dont intersect

7 0
3 years ago
I need help with this math problem?
Nuetrik [128]

Answer:

401.92u^3

Step-by-step explanation:

Volume for a cylinder=(pi*r^2)*h because it is the area of the circle times the height of the cylinder so,

(3.14*4^2)*8=401.92

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3 years ago
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