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DerKrebs [107]
4 years ago
8

The expression [(-7) ³ - (-7³)] - [(-7) ² + 7²] results in

Mathematics
2 answers:
scZoUnD [109]4 years ago
5 0
BASIC \: \: ALGEBRA \\ \\ \\ Given \: \: expression \: - \\ ( {( - 7)}^{3} - ( { - 7)}^{3} ) - ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - \: ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - (49 + 49) \\ \\ = \: \: 0 - 98 \\ \\ \\ = \: \: - 98 \: \: \: \: \: \: \: \: \: \: Ans.
Reil [10]4 years ago
4 0
[(-7)(-7)(-7) + (-7)(-7)(-7)] - [(-7)(-7) + (7)(7)] 
(-343 + -343) - (49 + 49)
-686 - 98 = -784
The answer is a) -784 :)
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The twelve members of the Middle School filmmaking club need to raise at least $1,400. they have already raised $650. Which ineq
Lelechka [254]

Answer:

Step-by-step explanation:

At least $62.50 per member

3 0
3 years ago
Solve the triangle.
Reika [66]

Answer:

cute scalene triangle.

Sides: a = 1   b = 2   c = 1.906

Area: T = 0.94

Perimeter: p = 4.906

Semiperimeter: s = 2.453

Angle ∠ A = α = 29.543° = 29°32'36″ = 0.516 rad

Angle ∠ B = β = 80.457° = 80°27'24″ = 1.404 rad

Angle ∠ C = γ = 70° = 1.222 rad

Height: ha = 1.879

Height: hb = 0.94

Height: hc = 0.986

Median: ma = 1.888

Median: mb = 1.147

Median: mc = 1.262

Inradius: r = 0.383

Circumradius: R = 1.014

Vertex coordinates: A[1.906; 0] B[0; 0] C[0.166; 0.986]

Centroid: CG[0.691; 0.329]

Coordinates of the circumscribed circle: U[0.953; 0.347]

Coordinates of the inscribed circle: I[0.453; 0.383]

Exterior (or external, outer) angles of the triangle:

∠ A' = α' = 150.457° = 150°27'24″ = 0.516 rad

∠ B' = β' = 99.543° = 99°32'36″ = 1.404 rad

∠ C' = γ' = 110° = 1.222 rad

Step-by-step explanation:

7 0
3 years ago
This one is confusing to me
crimeas [40]
(6,9) that is the answer on the graph
5 0
3 years ago
Number 9 last question
andreyandreev [35.5K]
The answer would be the second one, you can immediately cross off the first one and 3rd one, 2 x 200 = 400 - 300 = 100 :)
8 0
4 years ago
3 times 2 cubed + 5 squared-18 divided by 6
Strike441 [17]

Answer:

46

Step-by-step explanation:

3 x 2^3 + 5^2 - 18/6

= 3 x 8 + 25 - 3

= 24 + 25 - 3

= 49 - 3

= 46

7 0
2 years ago
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