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algol [13]
2 years ago
14

A rectangular garden has length and width as given by the expressions below. Length: 4 - 7 (3x + 4y) Width: 3x(-2y) Write a simp

lified expression for the perimeter of the rectangle. ​
Mathematics
2 answers:
anastassius [24]2 years ago
8 0

Answer:

8 − 42x − 56y − 12xy

Step-by-step explanation:

Yes.

Nezavi [6.7K]2 years ago
3 0

Answer:

⇒ 8 −  ⇒ 42x −  ⇒ 56y −  ⇒ 12xy

Step-by-step explanation:

Im smart

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What’s the difference between an inscribed and circumscribed circle
kykrilka [37]
Inscribed is a polygon inside a circle with all points on a given point in the circle. Circumscribed is a circle inside a polygon with any given point touching just one point on the polygon. Hope this helped.
5 0
3 years ago
Read 2 more answers
Find the 14th term of the arithmetic sequence - 4x - 1, - 9x - 6 , -14x-11
Yanka [14]

Answer:

-69x-66

Step-by-step explanation:

1) given: a₁=-4x-1; a₂=-9x-6; a₃=-14x-11. Find: a₁₄-?

2) a₁₄=a₁+13d, where d - the difference between neighbor-terms;

3) d=a₂-a₁; ⇔ d= -9x-6+4x+1= -5x-5;

4) a₁₄= -4x-1+13*(-5x-5)= -69x-66.

3 0
2 years ago
R of breaths of all people in asia in 2016? Expressing your answer in scinentific notation in the form a *10^(b) what are the va
Andrew [12]

Answer:

a = 3.7464

b = 16

Step-by-step explanation:

Given

See attachment for complete question

Required

Express the answer in a * 10^b

From the question, we have:

People = 4.46 * 10^9

Breath = 8.4 * 10^6 breath/person in a year

The number of breath is calculated by:

Overall = People * Breath

So, we have:

Overall = 4.46 * 10^9 * 8.4 * 10^6

Reorder

Overall = 4.46  * 8.4* 10^9 * 10^6

Overall = 37.464* 10^{9+6}

Overall = 37.464* 10^{15}

Using scientific notation a * 10^b;

The value (a) must be in the following interval 0 \le a \le 1

So, we have:

Overall = 3.7464 * 10 * 10^{15

Overall = 3.7464 * 10^{16

By comparing the above with: a * 10^b

a = 3.7464

b = 16

7 0
3 years ago
Help! <br> Expressions and equations
Dovator [93]

Answer:

1. 16−6=10

2. 4⋅2+1

3. x÷25

4. y+8=40

Explanation:

This is an equation—two expressions are connected with an .This is an expression—no equal sign. This is an expression—no equal sign. This is an equation—two expressions are connected with an equal sign.

5 0
3 years ago
There are 5 questions on a multiple choice exam, each with five possible answers. If a student guesses on all five questions, wh
Mrac [35]

Answer:

20.5\%

Step-by-step explanation:

Let's write out a case for two specific questions being correct and the rest being incorrect:

\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5},

The \frac{1}{5} represents the chances of getting the question correct, as there are 5 answers and 1 correct answer choice.

The \frac{4}{5} represents the chances of getting the question incorrect, as there are 5 answers and 4 incorrect answer choices.

The equation above does show the student getting two answers correct and three answers incorrect, but it only shows one possible case of doing so.

We can choose any two of the five questions to be the ones the student gets correct. Therefore, we need to multiply this equation by the number ways we can choose 2 from 5 (order doesn't matter): \binom{5}{2}=10.

Therefore, the probability the student gets two questions correct is:

\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \binom{5}{2}=\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot 10=0.2048\approx \boxed{20.5\%}

6 0
3 years ago
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