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Ilya [14]
3 years ago
10

What is the area of ΔABC? Round to the nearest tenth of a square unit.

Mathematics
2 answers:
saveliy_v [14]3 years ago
5 0

Answer:

b.

Step-by-step explanation:

Westkost [7]3 years ago
3 0
Draw a perpendicular segment from point C to the midpoint of AB. Using the trig sine function sin 80 = x/6 which gives 5.91 for the perpendicular segment. Using the formula A=1/2bh, A= 1/2 x5.91x2sqrt 2  A= 8.4
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Suppose you have a mean standardized score of 1100 points with a standard deviation of 100 points. This data is normally distrib
dolphi86 [110]
Using the formula <span>Z = (X - μ) / σ, X being 900, </span>μ being 1100, and <span> σ being 100, we can get the Z-score of -2.</span>
4 0
3 years ago
Cara has $25 to buy dry pet food and treats for the animal shelter. A pound of dog food cost $2 and treats are $1 apiece. If she
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3 years ago
Based on the graphs of f (x) and g(x), what must the domain of (f ⋅ g)(x)be?
dimulka [17.4K]

Answer:

{x ∈ ℝ | x ≠ 2}

Step-by-step explanation:

4 0
2 years ago
(−t 4 −5t 3 −10t 2 )+(9t 3 +3t 2 −1)
klemol [59]

Answer:

\left(-t^4-5t^3-10t^2\right)+\left(9t^3+3t^2-1\right)=-t^4+4t^3-7t^2-1

Step-by-step explanation:

Given the expression

\left(-t^4\:-5t^3\:-10t^2\:\right)+\left(9t^3\:+3t^2\:-1\right)

Remove parentheses:  (a)=a

=-t^4-5t^3-10t^2+9t^3+3t^2-1

Group like terms

=-t^4-5t^3+9t^3-10t^2+3t^2-1

Add similar elements        

=-t^4-5t^3+9t^3-7t^2-1         ∵ -10t^2+3t^2=-7t^2

Add similar elements        

=-t^4+4t^3-7t^2-1                  ∵  -5t^3+9t^3=4t^3

Thus, the equivalent expression in simplified form:

\left(-t^4-5t^3-10t^2\right)+\left(9t^3+3t^2-1\right)=-t^4+4t^3-7t^2-1

4 0
3 years ago
What is a rational number? A.9 B.15 C.28 D.25
Darina [25.2K]
The answer is..........
A. 9
4 0
3 years ago
Read 2 more answers
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