2 years ago

I need an answer asap

Mathematics

1 answer:

eduard2 years ago

7 0

Answer: The answer is 120

Step-by-step explanation: you add 50+70 and u will get 120

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Simplify the expression: (3m + 1)(2)

BARSIC [14]

Answer:

6m + 2

Step-by-step explanation:

To simplify the expression you must have to use the distributive property:

(3m + 1)(2)

2 x 3m = 6m

2 x 1 = 2

6m + 2

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2 years ago

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Which value is a part of the domain? <br> -2.7<br> -2.2<br> -1.9

ozzi

Answer:

hmm, i think is -2.2 if am correct.

Step-by-step explanation:

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2 years ago

I need help please!

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Answer:

the correct answer is true

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If a scalene triangle has its measures 4 m, 11 m and 8 m, find the largest angle.

soldier1979 [14.2K]

Answer:

129.8 approximately

Step-by-step explanation:

So this sounds like a problem for the Law of Cosines. The largest angle is always opposite the largest side in a triangle.

So 11 is the largest side so the angle opposite to it is what we are trying to find. Let's call that angle, X.

My math is case sensitive.

X is the angle opposite to the side x.

Law of cosines formula is:

$x^2=a^2+b^2-2ab \cos(X)$

So we are looking for X.

We know x=11, a=4, and b=8 (it didn't matter if you called b=4 and a=8).

$11^2=4^2+8^2-2(4)(8)\cos(X)$

$121=16+64-64\cos(X)$

$121=80-64\cos(X)$

Subtract 80 on both sides:

$121-80=-64\cos(X)$

$41=-64\cos(X)$

Divide both sides by -64:

$\frac{41}{-64}=\cos(X)$

Now do the inverse of cosine of both sides or just arccos( )

[these are same thing]

$\arccos(\frac{-41}{64})=X$

Time for the calculator:

X=129.8 approximately

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3 years ago

A restaurant owner wants feedback on the items on the menu, so she leaves a customer satisfaction survey on the tables for custo

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Answer:

O A) convenience sample

Step-by-step explanation:

O A) convenience sample

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