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Irina-Kira [14]
2 years ago
15

Brainliest if Correct!! Help QUICK....

Mathematics
1 answer:
Sloan [31]2 years ago
6 0

Replace x with the x value solve to get the y value.


see attached picture for answers.

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26 cm
cupoosta [38]

Answer:

82cm

Step-by-step explanation:

26+26+15+15=82

5 0
3 years ago
What is 66 plus 16382
MrRa [10]
The answer to your question is 16,448 
6 0
4 years ago
How do I use the cosine rule for these problems?
Elenna [48]

Answer:

see explanation

Step-by-step explanation:

Using the Cosine rule

a² = b² + c² - 2abcosA ← Rearranging for cosA gives

cosA = \frac{b^2+c^2-a^2}{2ab}

(a)

let a = 10, b = 7, c = 8 and A = α, then

cosα = \frac{7^2+8^2-10^2}{2(7)(8)} = \frac{49+64-100}{112} = \frac{13}{112}, thus

α = cos^{-1}( \frac{13}{112} ) ≈ 83° ( to the nearest degree )

(b)

let the angle opposite side 7 be x

Using the Sine rule

\frac{10}{sin83} = \frac{7}{sinx} ( cross- multiply )

10sinx = 7sin83 ( divide both sides by 10 )

sinx = \frac{7sin83}{10} , thus

x = sin^{-1} ( \frac{7sin83}{10} ) = 44°

The third angle can be found using the sum of angles in a triangle

third angle = 180° - (83 + 44)° = 180° - 127° = 53°

The 3 angles are 83°, 44°, 53°

6 0
3 years ago
Using the graph, determine the coordinates of the roots of the parabola.
Ymorist [56]

Answer:

2 points, (4, 0) and (-2, 0) ((following the (x,y) format)).

Step-by-step explanation:

The roots are also calles x-intercepts, zeroes, and other less common terms.

8 0
3 years ago
Write a numerical expression for: twenty-seven less than the quotient of fourteen and seven.
cluponka [151]

Answer:

27⊂14=7

Step-by-step explanation:

8 0
3 years ago
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