2 years ago

I need help with these questions

Mathematics

1 answer:

Katarina [22]2 years ago

8 0

Answer:

I'm not on this level of school

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What is 97.356 in base ten numerals

nadya68 [22]

97.356

<span>ninety seven and three hundred fifty six <span>thousandths</span></span>

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2 years ago

ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?

kotykmax [81]

Answer:

$cos(C) =\frac{40}{41}\\\\cos(C)=0.976$

Step-by-step explanation:

To find the $cos (C)$ we must use the cosine theorem.

The cosine theorem says that:

$c^2 = a^2 +b^2 -2abcos(C)$

In this case:

$c=AB = 9$

$b=CA = 41$

$a=BC = 40$

$9^2 = 40^2 +41^2 -2(40)*(41)cos(C)$

$9^2- 40^2- 41^2 =-2(40)*(41)cos(C)$

$cos(C) = -\frac{9^2- 40^2- 41^2}{2(40)*(41)}$

$cos(C) =\frac{40}{41}\\\\cos(C)=0.976$

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2 years ago

(r3 +6r2 −21r−18)÷(r−3) solve using synthetic division

alexandr402 [8]

Answer:

y = x^2 + 9x + 6 No remainder.

Step-by-step explanation:

The divisor will be 3 The sign on the divisor switches.

3 || 1 + 6 - 21 - 18 ||

3 27 + 18

================================

1 9 6 0

The answser is x^2 + 9x + 6

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2 years ago

The sum of 27 and a number n

Jobisdone [24]

Answer:

Its X And The Sum Of N Is Going To Be 27

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2 years ago

The coordinates A(2, 1), B(7, 1), C(2, 4) form what type of polygon?

Elena L [17]

It makes and obtuse right triangle.

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2 years ago

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