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Dafna1 [17]
3 years ago
5

Evaluate the following expression: 3 + 2(4 + 7)

Mathematics
2 answers:
o-na [289]3 years ago
6 0

Answer:

The answer is 25

2(4+7)

8+14 + 3 = 25

Step-by-step explanation:

Romashka [77]3 years ago
5 0

Answer:

25

Step-by-step explanation:

Let's simplify this, while still doing it.

3 + 2(4 + 7)

3 + 2(11)

3 + 22

25.

the answer is 25!!

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Answer:

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Step-by-step explanation:

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1 year ago
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vitfil [10]

Answer:

∠ 1 = 99°, ∠ 2 = 81°, ∠ 4 = 81°

Step-by-step explanation:

∠ 1 and ∠ 3 are vertical angles and are congruent, then

∠ 1 = 99°

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∠ 2 and ∠ 4 are vertical angles and are congruent, so

∠ 4 = 81°

6 0
3 years ago
What is the binomial expansion of (x 2y)7? 2x7 14x6y 42x5y2 70x4y3 70x3y4 42x2y5 14xy6 2y7 x7 14x6y 42x5y2 70x4y3 70x3y4 42x2y5
AysviL [449]

You can take x = a, 2y = b and then can apply the binomial theorem.

The expansion of given expression is given by:

Option D: x^7 + 14x^6y + 84x^5y^2 + 280x^4y^3 + 560x^3y^4 + 672x^2y^5 + 448xy^6 + 128y^7 is

<h3>What is binomial theorem?</h3>

It provides algebraic expansion of exponentiated(integer) binomial.

According to binomial theorem,

(a+b)^n = \sum_{i=0}^n ^nC_i a^ib^{n-i}

<h3>How to use binomial theorem for given expression?</h3>

Taking a = x, and b =2y, we have n = 7, thus:

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Thus, Option D: x^7 + 14x^6y + 84x^5y^2 + 280x^4y^3 + 560x^3y^4 + 672x^2y^5 + 448xy^6 + 128y^7 is correct.

Learn more about binomial theorem here:

brainly.com/question/86555

6 0
3 years ago
7.)
I am Lyosha [343]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Answer:

x = 180

Step-by-step explanation:

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(is it asking to find the area?)

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3 years ago
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