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vova2212 [387]
3 years ago
9

What is the surface area of this figure below?

Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer:

answer: 189

Step-by-step explanation:

Formula to find triangles area is base x height ÷ 2 So... 7 x 10 = 70 70 ÷ 2 = 35 Now sense we have 4 identicle triangles we will just do 35 × 4 amd 35 × 4 = 140 now for the square its simply just base x height so 7 × 7 = 49 now we will add these up...140 + 49 = 189 so 189 is the area. Hope this helps!

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The perimeter it a square field is 224. How long is
geniusboy [140]
Since each side of a sqare is equal and there are four sides to the square
224 = 4x
X being the side length.
Then you would simiply divide by 4 to isolate x
x = 56
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8 0
3 years ago
2. Which of the following proves that 209 is NOT a prime number?
solmaris [256]

the answer is B) 19 × 11 = 209

coz A prime number is a whole number greater than 1 whose only factors are 1 and itself.

but here it is a multiple of 11 and 19 ....

so its proved

5 0
3 years ago
When a force of 30 N acts on a certain object the acceleration of the object is 5m/s2 if the force is changed to 54 N what will
PtichkaEL [24]

Answer:

The correct answer is 9 m per second^{2}

Step-by-step explanation:

Force is defined by mass of an object times it's acceleration.

Let the mass of the object be m kilograms.

When a force of 30 N acts on a certain object the acceleration of the object is 5 m per second^{2}

∴ 30 = m × 5

⇒ m = 6.

If the force is changed to 54 N, let the acceleration of the object be x  m per second^{2}.

∴ 54 = m × x

⇒ x = \frac{54}{6} = 9

Thus when the force is 54 N, the acceleration of the object is 9 m per second^{2}.

6 0
3 years ago
What multiplies to 16 and adds to 18?
KonstantinChe [14]


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So, I would think it's 8.

Hope I was able to help you. :-)

8 0
3 years ago
Read 2 more answers
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3 years ago
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