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Marizza181 [45]
3 years ago
13

PLEASE HELP MIDDLE SCHOOL MATH​

Mathematics
1 answer:
snow_tiger [21]3 years ago
3 0

Answer:

x>=5

Step-by-step explanation:

If x is less than five, then there will be a negative in the square root, which will yield x an  imaginary number.

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Olegator [25]
The answer is -6x-14
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A circle with a radius of 15 yards contains a sector with an area of 609 yde. Find the measure of
kondaur [170]

Answer: 310.3° or 5.41 radians.

Step-by-step explanation:

The area of a circle of radius R is calculated as:

A = pi*R^2

Now, if we have a sector of an angle θ degrees, the area of that sector is:

A = (θ/360°)*pi*R^2

In this case, we know that:

R = 15yd

And the area of the sector is 609 yd^2

Then we can replace these two values in the equation to get:

609yd^2  =(θ/360°)*3.14*(15yd)^2

(609yd^2)*360°/(3.14*(15yd)^2) = θ = 310.3°

And we want the angle also in radians.

We know that:

3.14 rad = 180°

(3.14 rad/180°) = 1

Then:

310.3° = 310.3°*(3.14 rad/180°) = (310.3°/180°)*3.14 rad = 5.41 radians.

4 0
3 years ago
Which expression is equivalent to 63.56 + (–81.47)?
olganol [36]

Answer:

63.56 -81.47= -17.91

Step-by-step explanation:

cause the answer of 63.56 +(-81.47)= -17.91

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The angle measurements in the diagram are represented by the following expressions.
ki77a [65]

Answer:

x=6. Angle B=126 degrees

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6 0
3 years ago
HELP!!
murzikaleks [220]

Answer:

Explicit:

a(n) = (5^n)/5

Recursive:

a(n) = 5 × a(n-1)

Step-by-step explanation:

1, 5, 25, 125...

1, 1×5 = 5, 5×5 = 25, 25×5 = 125..

It is a Geometric sequence with:

First term: 1

Common ratio: 5

Nth term of a Geometric sequence is:

a(n) = a(1) × r^(n-1),

Where a(1) is the first term and r is the common ratio.

Therefore,

a(n) = 1 × 5^(n-1)

a(n) = 5^n × 5^-1

a(n) = (5^n)/5

Recursive:

a(n) = 5 × a(n-1)

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3 years ago
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