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Vaselesa [24]
3 years ago
15

(T/F) unknow values are represented with variables that can be any letter. which one true or false ​

Mathematics
1 answer:
Ivenika [448]3 years ago
8 0

Answer:

True.

Step-by-step explanation:

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Simplify 3(x-6)-4(x+3)
Finger [1]

Answer:

Step-by-step explanation:

look this up it give you the answer

let me know if this help plzz

7 0
3 years ago
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Sin α = 21/29, α lies in quadrant II, and cos β = 15/17, β lies in quadrant I Find sin (α - β).
Sever21 [200]
\sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta

\sin\alpha=\dfrac{21}{29}\implies \cos^2\alpha=1-\sin^2\alpha=\dfrac{400}{841}

Since \alpha lies in quadrant II, we have \cos\alpha, so

\cos\alpha=-\sqrt{\dfrac{400}{841}}=-\dfrac{20}{29}

\cos\beta=\dfrac{15}{17}\implies\sin^2\beta=1-\cos^2\beta=\dfrac{64}{289}

\beta lies in quadrant I, so \sin\beta>0 and

\sin\beta=\sqrt{\dfrac{64}{289}}=\dfrac8{17}

So

\sin(\alpha-\beta)=\dfrac{21}{29}\dfrac{15}{17}-\left(-\dfrac{20}{29}\right)\dfrac8{17}=\dfrac{475}{493}
8 0
3 years ago
What is the slope of the line through (-1,4) and (1.-2)?
Wittaler [7]

Answer:

A. -3

Step-by-step explanation:

(4) - (-2) = 6

(-1) - (1) =  -2

6/-2

/2

-3

3 0
2 years ago
Find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet
Mrrafil [7]
Rise over run 8\24 = 1/3
6 0
3 years ago
What is 1 7/8 Times 2 1\3
slamgirl [31]
We need to convert the mixed fractions into improper fractions.

1*8 = 8 
8+7 = 15

15/8 

2*3 = 6
6+1 = 7

7/3

Now we can finish and multiply

\frac{15*7}{8*3}

15*7 = 105
8*3 = 24

Simplify 105/24

105/24

24*4 = 96

105 - 96 = 9

4 is the whole number, and 9 is the numerator.

4  9/24

Simplify that,

9/3 = 3
24/3 = 8

4  3/8

Answer: 4\frac{3}{8}



8 0
3 years ago
Read 2 more answers
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