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2 years ago

Please help me this is my final!!!

Mathematics

2 answers:

PolarNik [594]2 years ago

4 0

Answer:

final for what?

Step-by-step explanation:

alina1380 [7]2 years ago

3 0

Answer:

171

Step-by-step explanation:

Okay since the exterior angles of every polygon is always 360

and this polygon has 40 sides,

360/40=9

180-9=171

Hope This helps

(what grade is this?)

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How do you solve and simplify 2/5+1/4+7/10=

Alchen [17]

Hello!

Answer: ⇒ 27/20

Step-by-step explanation:

$\frac{8}{20}+\frac{5}{20}+\frac{14}{20}$

Since the denominators are equal, then combine the fractions.

$\frac{8+5+14}{20}$

Add by the numbers.

$8+5+14=27$

$=\frac{27}{20}$

Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

-Charlie

4 0

3 years ago

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What is the value of x 5,2.5,7.5,10

Norma-Jean [14]

This question is referred to two similar triangles.

One triangle has sides x and x - 2.

The other triangle has the respective sides x + x + 5 and x - 2 + x + 1

Then you can state a proportionality relation between the sides>

[x + x + 5] / x = [x - 2 + x + 1] / [x - 2]

=> [2x + 5] / x = [2x - 1] / [x - 2]

=> (2x + 5)(x - 2) = (2x - 1)x

=> 2x^2 - 4x + 5x - 10 = 2x^2 - x

=> x - 10 = - x

=> 2x = 10

=> x = 10 / 2

=> x = 5

Answer: x = 5

3 0

3 years ago

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For which of the following conditions will the sum of integers m and n always be an odd integer?

lisov135 [29]

Answer:

option K cuz

Step-by-step explanation:

if we take m=7 and n=2

7 + 2= 9

and 9 is an odd number

5 0

2 years ago

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What is twice 2 to the 30 power ? Write using exponents. Explain your reasoning

Rus_ich [418]

2 times 2^30 simple means that = (2^1) x (2^30)

In multiplying numbers of the same base (in this case 2), the exponents are just added, therefore giving us:

(2^1) x (2^30) = (2^31)

Answer:

2 to the 31 power

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2 years ago

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Theoretical Probability - Guided Practice#1 - All of the letters in the word Mississippi are written on separate pieces of paper

Naily [24]

The probability = outcome/total outcomes

The total of the outcomes is the total number of the letters of the given word, then

The total outcomes = 11

The outcome is the number of letter "s" in the word

The outcome = 4, then

The probability of "s" is

$P(s)=\frac{4}{11}$

To change it to percent multiply it by 100% and round it to the nearest 1 decimal place

$\begin{gathered} P(s)=\frac{4}{11}\times100 \\ P(s)=36.4 \end{gathered}$

The answer is 36.4%

Answer C

5 0

11 months ago

Please help me this is my final!!!￼

Please help me this is my final!!!