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Mnenie
8 days ago
13

A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°

Mathematics
2 answers:
Inessa [3.9K]8 days ago
4 0
To find the angle of rotational symmetry for a regular polygon, we use the formula: degrees of rotation = 360° divided by the number of sides. In this scenario, we used n = 5, given that a pentagon has five sides.
The calculation for the angle of rotation is: degrees of rotation = 360° / 5  
Thus, degrees of rotation = 72°

72° is the correct choice among the options.
tester [3.9K]8 days ago
3 0

If I've calculated correctly, the answer is 72 degrees.

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A sandbox is 2.5 m wide and 3.4 m long.
zzz [4022]

Answer:

2.55 cubic meters of sand

Step-by-step explanation:

The inquiry focuses on how much sand is needed to completely fill the sandbox. As it is a three-dimensional shape, the concept of 'Volume' is applicable. Volume is determined through the formula L × W × H. By substituting the relevant variables into this equation, you arrive at the final solution. I hope this offers clarity!

5 0
6 days ago
A recipe calls for 400 grams of flour. if leena makes one quarter of the recipe, how many kilograms of flour will she need?
Svet_ta [4321]
Additional 300 grams of flour will be required.
4 0
4 days ago
A certain food has a gluten ratio of 13\,\text{mg}13mg13, start text, m, g, end text of gluten per \text{L}Lstart text, L, end t
tester [3916]

Answer:

The gluten content expressed in micrograms per milliliter is 13 µg/mL.

Step-by-step explanation:

Take into account the details given.

The gluten content of the product is specified as 13 \frac{mg}{L}.

We now need to convert the gluten content to micrograms per milliliter.

For conversion from mg to micrograms, refer to the following facts:

1 mg equals 1000 micrograms.

1 L corresponds to 1000 milliliters.

Next, replace 1 mg = 1000 micrograms and 1 L = 1000 milliliters into the ratio provided above.

13( \frac{1000 \ micro-grams}{1000 \ milliliter} )= 13( \frac{micro-grams}{milliliter})

Consequently, the gluten ratio in micrograms per milliliter is 13 µg/mL.

5 0
12 days ago
Read 2 more answers
A rocket was launched into the air from a podium 6 feet off the ground. The rocket path is represented by the equation h(t)=-16t
lawyer [4008]

Answer:

60

Step-by-step explanation:

The function provided is:

h(t)=-16t^2+120t+6

The average rate of change of h(t) as time goes from t=a to t=b is expressed as:

\frac{h(b)-h(a)}{b-a}

This function can be reformulated as: h(t)=-16(t-3.75)^2+231

The rocket's peak height is 231, which occurs at t=3.75 seconds.

\implies h(3.75)=231

The initial launch happens at: t=0

and h(0)=-16(0)^2+120(0)+6=6

The average rate of change from launch to max height is

\frac{h(3.75)-h(0)}{3.75-0}=\frac{231-6}{3.75-0} =60

6 0
8 days ago
Enter the equation of the circle described below.<br><br> Center (-1, 4), radius = √3
PIT_PIT [3919]
THE CIRCLE EQUATION: (x - h)² + (y - k)² = r²


= (x + 1)² + (y - 4)² = 3
3 0
13 days ago
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