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Lynna [10]
3 years ago
10

Which expression is equivalent to (3a)-2​

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

removing of bracket

Step-by-step explanation:

(3a)-2

3a×(-2)

-6a

mart [117]3 years ago
7 0

Answer:

1/9a2

Step-by-step explanation:

I'm not sure if there's supposed to be a list of answers, but 1/9a2 is one. Hope this helps! Let me know if there was supposed to be a list.

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3.<br><br> What is the value of a + bc when a = 7, b = 4, and c = 1/2
Brums [2.3K]

Answer:

9

Step-by-step explanation:

Replace a by 7

and

b by 4

and

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7+4(1/2)

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3 0
3 years ago
The intersecting chords theorem states we can calculate the angle measure by... *
monitta

Answer:

A. Adding the values of the intercepted arcs and that is equal to twice the angle measure

Step-by-step explanation:

The intersecting chords theorem states that when four line segments are formed by two chords intersecting in a circle, the product of the two line segments on one chord is equal to the product of the two line segments on the other chord

The angles of intersecting chords theorem states that the angles formed by the intersecting chords one half the sum of the arcs intercepted by the chords

In the diagram attached, we have;

∠x = ∠y + ∠z

m\widehat{DHE} = 2·∠z, m\widehat{CIF} = 2·∠y

∴ ∠x = (1/2) × m\widehat{DHE} + m\widehat{CIF}

m\widehat{DHE} + m\widehat{CIF} = 2 × ∠x

The correct option is therefore adding the values of the intercepted arcs and that is equal to twice the angle measure.

3 0
3 years ago
Why is Building equity in a home is a good thing
Nata [24]

Answer:

Home equity can be a long-term strategy for building wealth.

8 0
3 years ago
What elephant's weight is 2.85 tons when rounding to the nearest hundredth?
Gwar [14]

Answer:

D. Fanny: 2.849

Step-by-step explanation:

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