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Fiesta28 [93]
3 years ago
5

If x=12 what is that value of 5(x-4)

Mathematics
1 answer:
Kamila [148]3 years ago
3 0

Answer: 40

Step-by-step explanation:

You need to plug in 12 for x

5(12 - 4) = 5 x 8 = 40

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2 years ago
18. The area of a right triangle is 30 cm². The length
Olenka [21]

Answer:

12

Step-by-step explanation:

The area of a triangle is calculated with the following formula:

\frac{1}{2} *b*h (b: base, h: height (or legs))

We can use this formula to find the length of the other leg:

30 = \frac{1}{2} *b*h multiply both sides with 2 to get rid of fraction

60 = b*h one of the leg's length is given as 5 so

60 = 5*h divide both sides by 5

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8 0
2 years ago
I need help this is hard
Lerok [7]

Answer:

2 cm

Step-by-step explanation:

The red triangle has legs measuring 1.2 cm and 1.6 cm.

You need x, the length of the hypotenuse.

Use the Pythagorean theorem.

(1.2 cm)² + (1.6 cm)² = x²

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Answer: 2 cm

7 0
3 years ago
TanA+tanB=sin(A+B)/cosAcosB
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Do you need to prove that it is equal?
If so:

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3 years ago
AT AN APPLE ORCHARD, SMALL BAGS CONTAIN 7 APPLES. aLEXA AND HER FAMILY BOUGHT 91 APPLES FOR A PARTY. HOW MANY SMALL BAGS DID THE
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She brought 13 small bags of apples. 
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