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Serggg [28]
3 years ago
15

PLEASE ANSWER!!!!WILL MARK BRAINLIEST!!!

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0
Hope this is helpful

You might be interested in
What number is 7 times as much as 9
fenix001 [56]

Answer:

7 * 9 = 63

Step-by-step explanation:

Because...

The word Times let's you know you have to multiply.

* Hopefully this helps:) Mark me the brainliest:)!

3 0
3 years ago
Does a regular pentagon tessellate and why​
mariarad [96]

Answer:

No, a regular pentagon does not tessellate.

In a tessellation, all the angles at a point have to add to 360 degrees, as this means there is no overlap, nor are there gaps. To find the interior angle sum of a pentagon, we use the following formula:

(n-2)*180 (where n is the number of sides)

We plug in the number of sides (5) and get:

Angle sum = (5–2)*180

Angle sum = 3*180

Angle sum = 540

Regular pentagons have equal sides and equal angles, so to find the size of the interior angle of a pentagon, we divide the angle sum by 5 and get 108 degrees for every angle.

As I said before, the angles at a point need to add up to 360, so we need to know if 108 divides evenly into 360. If it does, the shape tessellates, and, if it doesn’t, the shape does not.

360/108 = 3.33333…

This means that a regular pentagon does not tessellate.

Hope this helps!

8 0
3 years ago
Graph y = -x^2 - 2. Identify the vertex of the graph. Tell whether It is a minimum a<br> or maximum
lawyer [7]

Answer:

(0,-2)

maximum

Step-by-step explanation:

-x∧2-2 = -1 (x∧2) -2

so the vertex should be (0,-2)

As it is negative for the x∧2, so the graph opens downwards. So, the vertex is a maximum.

5 0
3 years ago
A student found out that 8% ofthe students in his school are left-handed.If there are 114 lefties, how many students are in his
AleksAgata [21]

Answer: 1,425 students

Step-by-step explanation: This is easy to solve using proportions/

114/8 = ?/100

First, you cross multiply (or whatever this is called sry) 100x114=11400

Then divide 11400÷8=1,425

8 0
3 years ago
Andre says that 5 3/4 + 2 1/4 = 7 1/2 because 7 4/8 = 7 1/2. Identify his mistake. Draw a picture to prove that he is wrong.
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

The given expression is

5\frac{3}{4}+2\frac{1}{4} =7\frac{4}{8}=7\frac{1}{2}

We will rewrite the expression

\frac{23}{4}+\frac{9}{4} =\frac{60}{8}=7\frac{1}{2}

When we add the fraction

\frac{23+9}{4} = \frac{32}{4} = 8

While Andre says the answer is 7\frac{1}{2}

because Andre added the denominator where he has to make a common denominator that should be 4 instead of 8.

Andre made mistake in this step

Picture is given below :

3 0
3 years ago
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