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Scorpion4ik [409]
3 years ago
8

Which expression is equivalent to 4 - (-7)?

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Answer: (A is the answer.

Step-by-step explanation: If you subtract 4 and (-7), you'll get 11. If you add 7 and 4, you'll get 11.

Therefore, the answer is A.

A

7 + 4

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What is the volume of the composite figure below? (formula for volume of a prism is 1/3 Bh where B is the area of the base.)
arsen [322]

Answer:

Last Option; 84 cu. mm

Step-by-step explanation:

We know that;

Volume = 1/3(Bh)

And that this is figure has a square base, therefore B that represents the area of the base will be: 6 * 6 = 36

And height = 7mm

Therefore we can say;

Volume = (1/3)*(6 x 6)*(7)

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6 0
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Marcia will make a frame for her picture the length of the picture is 15 inches the width is one third of the length how much wo
vovangra [49]
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3 years ago
A rectangle flower bed is 9 feet wide and 12 feet long .what is the length of the diagonal?​
BigorU [14]

Answer:

15 feet

Step-by-step explanation:

The question talks about;

  • A rectangular flower bed whose dimensions are 12 ft by 9 ft

We are required to determine the length of the diagonal

To answer the question, we need to know the following;

  • All the angles in a rectangle are right angles
  • A diagonal divides a rectangle into two right-angled triangles
  • The dimensions of the rectangle acts as the legs of right angled triangle.

Therefore;

Using Pythagoras theorem;

a² + b² = c²

Where, c is the hypotenuse (in this case the diagonal)

a and b are the shorter sides of the right-angled triangle

Therefore;

c² = 12² + 9²

c² = 144 + 81

   = 225

c = √225

  = 15

Therefore, the length of the diagonal is 15 feet

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3 years ago
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