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3 years ago

Is this expression 6(2r+(−1)+1 equivalent to 12r-5

Mathematics

2 answers:

Elanso [62]3 years ago

8 0

Answer:

No.

Step-by-step explanation:

Let's solve our expression first:

6(2r+(-1)+1

12r + (-6) + 6

12r - 6 + 6

12r - 0

Conclusion:

12r - 0 ≠ 12r - 5

Hope it helped,

BiologiaMagister

VARVARA [1.3K]3 years ago

6 0

Answer:

no it's not

Step-by-step explanation:

6(2r+(-1)+1 = 12r + -6 + 6 = 12r+ 0 => not equivalent to 12r - 5

Hope this help :)

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2 years ago

Y=3/4x - 6 find the x-intercept of the line

Ede4ka [16]

Answer:

The x intercept is (8,0)

Step-by-step explanation:

To find the x intercept set y = 0 and solve for x

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2 years ago

Read 2 more answers

Two squares have sides 12cm and 4cm respectively. What is the ratio of their sides

Nookie1986 [14]

Answer:

3 : 1

Step-by-step explanation:

We have to compare the value of two sides.

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1 year ago

What is 1.939 x 10^5 in standard form?<br>

VARVARA [1.3K]

Answer:

193900

Step-by-step explanation:

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2 years ago

Two ships leave the same port in different directions, forming a 120° angle between them. One ship travels 70 mi. and the other

kondaur [170]

Answer : Distance between the ships to the nearest miles = 106.03 ≈ 106 mi.

Explanation :

Since we have shown in the figure below :

a=70 mi.

b=52 mi.

c=x mi.

$\text{Since two ships leaves the same port in different directions forming a }120\textdegree\text{angle between them.}$

So, we use the cosine rule , which states that

$c^2=a^2+b^2-2ab.cosC\\\\x^2=70^2+52^2-2\times 70\times 52\times cos(120\textdegree)\\\\x^2=4900+2704-7280\times (-0.5)\\\\x^2=7604+3640\\\\x^2=11244\\\\x=\sqrt{11244}\\\\x=106.03$

So, c = x= 106.03 mi.

Hence, distance between the ships to the nearest miles = 106.03 ≈ 106 mi.

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3 years ago