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Ber [7]
2 years ago
8

Alison had 310 rocks in her rock collection. After three months, her collection increases by 40%. How many rocks does Alison hav

e now?
Mathematics
1 answer:
satela [25.4K]2 years ago
5 0

Answer:

434

Step-by-step explanation:

310 times .4 (percentage) = 124 which is how much she gained, then you add that onto the original amount to find how many she has now, which is 434

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Three students were given the expression shown to simplify.
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2-21x+28
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3 years ago
What is 8.05 × 10-5 in standard notation? 0.0000805 0.00000805 805,000 8,050,000
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Answer:

0.0000805

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3 years ago
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3 years ago
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(1.) decide if function f is invertible.
Lubov Fominskaja [6]
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f(n) is not invertible because several different days, n, may have the same number of students, f(n). Then for one specific f(n) you cannot determine a unique n.

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4 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
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