All categories

3 years ago

1.

Mathematics

2 answers:

oksian1 [2.3K]3 years ago

6 0

Answer:

b e

becuase it is b and e

torisob [31]3 years ago

4 0

Answer:

B and E

Step-by-step explanation:

A. Incorrect; the expanded form of 3(4x + 3) is 12x + 9

B. Correct; the cumulative property of addition was applied here.

C. Incorrect; this adds up to 8x + 52, which is not equivalent to 12x + 9

D. Incorrect; this equals 13

E. Correct; this is the expanded form of 3(4x + 3)

You might be interested in

Takumi started studying how the number of branches on his tree changes over time.

Musya8 [376]

Answer:

Grows, Factor of 2

Step-by-step explanation:

The relationship between the elapsed time, t, in years, since Takumi started studying his tree, and the total number of its branches, N(t), is modeled by the function:

$N(t) = 63. 2^t$

For illustration, let us take the growth for the first three years after he started studying the number of branches.

$When \:t=1, N(1) = 63. 2^1=126\\When \:t=2, N(2) = 63. 2^2=252\\When \:t=3, N(3) = 63. 2^3=504\\504\div 252=252\div 126=2$

We notice that for each subsequent year, the number of branches doubles.

Therefore:

Every year, the number of branches <u>grows</u> by a factor of <u>2.</u>

8 0

4 years ago

Simplify the expression by using a double-angle formula or a half-angle formula. (a) 2 tan(5°) 1 − tan2(5°)

antoniya [11.8K]

The question is related to trigonometry and we have to use the formula of double angle .

Here we use double angle formula of tangent function which is

$tan(2x) = \frac{2tan(x)}{1-tan^2(x)}$

Given expression is

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}$

Comparing it with double angle formula, we will get x = 5

SO the required expression is equal to

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)} =tan(2*5 )$

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)} =tan(10 )$

So the answer is tan(10) .

6 0

3 years ago

Find the Least Common Multiple of these two monomials:

bonufazy [111]

LCM 14 & 24 = 168

then use the highest exponents for the variables

answer = 168x^6y^6z^8

7 0

4 years ago

Add the expression (5.2c - 7.35) + (-3.9c + 3.65)

Bess [88]

Answer:

1.3c-3.7

Step-by-step explanation:

5.2c-3.9c=1.3

-7.35+3.65=-3.7

1.3c-3.7

4 0

3 years ago

I asked this but no1 knows it.So if any1 whos older or smart 4 an 8th grader please help me.Im just tryna pass

fredd [130]

Answer:

the line is horizontal

the rise is zero

8 0

3 years ago