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3 years ago

Need help with a math question

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

Answer:

360

Step-by-step explanation:

n=?

1800° = sum of interior angles

Pentagon = 5 sides

n = 1800° ÷ 5

n = 360

GenaCL600 [577]3 years ago

4 0

Answer: $n=12$

Step-by-step explanation:

You can observe that the formula for the sum of the interior angles of a polygon is:

$sum=(n-2)180$

Where "n" is the number of sides of the polygon.

You know that the sum of the interior angles of this polygon is 1,800 degrees. Therefore, you can find the number of sides by substituting this sum into the formula and then solving for "n".

Then:

$1,800=(n-2)180\\\\\frac{1,800}{180}=n-2\\\\10=n-2\\\\10+2=n\\\\n=12$

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If 2/5 cup of coconut shavings covers 1/4 of a cake, then how much coconut shavings are needed for one cake? A. 3/5 cup B. 5/8 c

DanielleElmas [232]

The right answer is Option C.

Step-by-step explanation:

Given,

2/5 cup of coconut shavings covers 1/4 of a cake,

$\frac{2}{5}\ coconut\ shavings=\frac{1}{4}\ of\ cake$

For one whole cake, we will multiply both sides with 4;

$4*\frac{2}{5}=\frac{1}{4}*4\\\frac{8}{5} = 1\ cake$

Writing in simplified fraction form;

$1\ cake = 1\frac{3}{5}\ cups$

The right answer is Option C.

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6 0

3 years ago

Help please!

yawa3891 [41]

Step-by-step explanation:

you're just going to switch x and y and then solve for y

6 0

3 years ago

Read 2 more answers

If RT = 90, find the length of RO. (SU = 25)(SO is perpendicular to RT)

Sedaia [141]

In the given figure of circle, if RT = 90, SU = 25, and SO is perpendicular to RT, the length of the radius RO is 53.

In the given figure,

RT = 90

SU = 25

SO is perpendicular to RT.

Here, SO and RO are the radii of the circle and RT is a chord.

The length of the chord, RT is given as,

RT = 2 √(r² - d²)

Here, r is the radius and d is the distance of the chord RT from the center O.

Radius, r = RO and distance, d = OU

∴ RT = 2 √(RO² - OU²)

Substituting RT = 90 in the above equation, we get,

90 = 2 √[(RO)² - (OU)²]

√[RO)² - (OU)²] = 45

(RO)² - (OU)² = 45²

(RO)² - (OU)² = 2025 ........... (1)

Now, OU = SO - SU [From the figure]

⇒ OU = SO - 25

Substituting OU = SO - 25 in equation (1), we obtain,

(RO)² - (SO - 25)² = 2025

(RO)²- [(SO)² + (25)² - 2(SO)(25)] = 2025 [ ∵ (a-b)² = a²+b²-2ab ]

(RO)²- (SO)² - (25)² + 50(SO) = 2025 ........... (2)

Since, RO and SO both are the radii of the same circle, we have,

SO = RO

Thus, we can write equation (2), as follows,

⇒ (RO)² - (RO)² - (25)² + 50(RO) = 2025

⇒ -625 + 50RO = 2025

⇒ 50RO = 2025 + 625

⇒ RO = 2650/50

⇒ RO = 53

Hence, the length of the radius RO of the given circle is 53.

Learn more about a circle here:

brainly.com/question/11833983

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4 0

2 years ago

What is the value of the angle marked with x?

earnstyle [38]

Answer:

97°

Step-by-step explanation:

The sides that are equal are 4.6

One of the sides length is 4.6, and its opposite angle is 97. If there is another line that has a length of 4.6 in the same figure, it's angles should also be 97 degrees.

7 0

3 years ago

Please help! will mark brainliest once two answers

RSB [31]

Answer:

SSS

Step-by-step explanation:

MK = MK

Because M is the midpoint of GL, GM = LM

It is given that GK ≈ LK

3 0

3 years ago