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Allisa [31]
3 years ago
5

Can you someone please check my answer? it’s important!

Mathematics
1 answer:
Andrei [34K]3 years ago
6 0

Answer:

∠ DEG = 65°

Step-by-step explanation:

The measure of the inscribed angle DEG is one half the measure of its intercepted arc DG

The sum of the arcs on the circle = 360°, thus

DG = 360° - (125 + 105)° = 360° - 230° = 130°

Thus

∠ DEG = 0.5 × 130° = 65°

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Debora [2.8K]
It is Constant. The cost per pound is 2.50 dollars. two would be on the x-axis, and 5 dollars would be on the y-axis. likewise, 3 would be on the x-axis, and 7.50 dollars is on the y-axis. 5 pounds would cost : $12.50
4 0
3 years ago
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What is the axis of symmetry of a parabola if its x-intercepts are -3 and 5?
ollegr [7]

Answer:

The axis of symmetry will be at 1

Step-by-step explanation:

The middle of -3 and 5 will be the axis :)

-3, -2, -1, 0, 1, 2, 3, 4, 5

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3 0
3 years ago
Plzzzzz help right answer gets a brainly!
Ivenika [448]

Answer:

8

Step-by-step explanation:

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6 0
3 years ago
Prove that for any natural n the number 3^(n+4)−3^n is divisible by 16.
gtnhenbr [62]

Answer:

Proved (See Explanation)

Step-by-step explanation:

Show that 3ⁿ⁺⁴ - 3ⁿ is divisible by 16.

This is done as follows

\frac{3^{n+4} - 3^n}{16}

From laws of indices;

aᵐ⁺ⁿ = aᵐ * aⁿ.

So, 3ⁿ⁺⁴ can be written as 3ⁿ * 3⁴.

\frac{3^{n+4} - 3^n}{16} becomes

\frac{3^n * 3^4 - 3^n}{16}

Factorize

\frac{3^n(3^4 - 1)}{16}

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\frac{3^n(80)}{16}

3ⁿ * 5

5(3ⁿ)

<em>The expression can not be further simplified.</em>

<em>However, we can conclude that when 3ⁿ⁺⁴ - 3ⁿ is divisible by 16, because 5(3ⁿ) is a natural whole number as long as n is a natural whole number.</em>

3 0
3 years ago
3a+4b=5a-t solve for a
7nadin3 [17]

Answer:

2b+t/2=a

Step-by-step explanation:

3a + 4b = 5a-t

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+t         +t

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/2           /2

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