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3 years ago

Solve for x Find ADB Find BDC

Mathematics

1 answer:

NeTakaya3 years ago

5 0

Answer:

x=12 ADB= 56 BDC= 54

Step-by-step explanation:

ADB and BDC are complementary, so they add up to 90 degrees. In other words ADB+BDC= 90 So I can input my knowns into the equation

(3x+10) + (4x-4) = 90

I combined like terms to give me 7x+6=90

Then I subtract 6 from both sides giving me 7x=84

Last I divide 7 on both sides. x=12

Then I input the x (12) into the equation and solve it from there

3(12)+10 and 4(12)-4

3(12)+10=56

4(12)-4=54

. . . I think. Hope this helps!

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Musya8 [376]

Answer:

6.6 cm and 14.6 cm

Step-by-step explanation:

(a)

the length of arc AB is calculated as

AB = circumference of circle × fraction of circle

= 2πr × $\frac{95}{360}$

= 2π × 4 × $\frac{95}{360}$

= 8π × $\frac{95}{360}$

= $\frac{8\pi (95)}{360}$

≈ 6.6 cm ( to the nearest tenth )

(b)

the perimeter (P) of sector AOB is

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Answer:

1568

Step-by-step explanation:

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Given that

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Now following formula should be used

n > (Zalpha ÷ 2 × sigma ÷ E)^2

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Now the sample size is

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6 0

2 years ago

Eight classrooms need to be painted. Teachers can choose between yellow or blue. How many possible outcomes are there?

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Answer:

See explaination and attachment

Step-by-step explanation:

Please kindly check attachment for the step by step solution of the given problem.

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7 0

3 years ago

(x^3+10x^2+2)/(x+10)

SCORPION-xisa [38]

The quotient is x^2

The remainder is 2

Step-by-step explanation:

We need to divide: $\frac{\left(x^3+10x^2+2\right)}{x+10}$

The division is shown in figure attached.

The quotient is x^2

The remainder is 2

Keywords: Division of polynomials

Learn more about Division of polynomials at:

#learnwithBrainly

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3 years ago