All categories

3 years ago

Which property is illustrated by the statement 6 • 4 = 4 • 6?

Mathematics

1 answer:

LenKa [72]3 years ago

5 0

Commutative property because 6•4=4•6 is communative property

You might be interested in

Write a variable expression to describe the rule for the sequence. Then find the 100th term in the sequence. –4, 1, 6, 11, 16, .

SVETLANKA909090 [29]

Answer:

a+(n-1)d

Step-by-step explanation:

491

3 0

3 years ago

A line passes through the points (8, –1) and (–4, 2).

joja [24]

Answer:

y=1/4x+1

Step-by-step explanation:

Goes zdown 3 and right 12 simplified to 1/4

3 0

4 years ago

Read 2 more answers

Solve the triangle A = 2 B = 9 C =8

VARVARA [1.3K]

Answer:

$\begin{gathered} A=\text{ 12}\degree \\ B=\text{ 114}\degree \\ C=54\degree \end{gathered}$

Step-by-step explanation:

To calculate the angles of the given triangle, we can use the law of cosines:

$\begin{gathered} \cos (C)=\frac{a^2+b^2-c^2}{2ab} \\ \cos (A)=\frac{b^2+c^2-a^2}{2bc} \\ \cos (B)=\frac{c^2+a^2-b^2}{2ca} \end{gathered}$

Then, given the sides a=2, b=9, and c=8.

$\begin{gathered} \cos (A)=\frac{9^2+8^2-2^2}{2\cdot9\cdot8} \\ \cos (A)=\frac{141}{144} \\ A=\cos ^{-1}(\frac{141}{144}) \\ A=11.7 \\ \text{ Rounding to the nearest degree:} \\ A=12º \end{gathered}$

For B:

$\begin{gathered} \cos (B)=\frac{8^2+2^2-9^2}{2\cdot8\cdot2} \\ \cos (B)=\frac{13}{32} \\ B=\cos ^{-1}(\frac{13}{32}) \\ B=113.9\degree \\ \text{Rounding:} \\ B=114\degree \end{gathered}$ $\begin{gathered} \cos (C)=\frac{2^2+9^2-8^2}{2\cdot2\cdot9} \\ \cos (C)=\frac{21}{36} \\ C=\cos ^{-1}(\frac{21}{36}) \\ C=54.3 \\ \text{Rounding:} \\ C=\text{ 54}\degree \end{gathered}$

3 0

1 year ago

What fraction is 4 hours of a day 45 mins of an hour 240cm3 of a litre

lesya [120]

4 hours of a day

1/6

45 mins of an hour

3/4

240cm3 of a litreliter

240cm3=0.24l

6/25

8 0

3 years ago

Simplify 2(5x – 4) + 3x

guapka [62]

To simplify, you must distribute the 2 into the 5x and -4 by multiplying 2 with 5x and 2 with -4.

2(5x – 4) + 3x

2 x 5x = 10x

2 x -4 = -8

You will get 10x - 8 + 3x

Now you must combine like terms or add like terms. In this case we must add 10x and 3x

10x + 3x = 13x

Finally the answer would be 13x - 8

6 0

3 years ago

Read 2 more answers