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2 years ago

Which equation can be used to solve for b?

Mathematics

1 answer:

Tanya [424]2 years ago

8 0

Answer:

The first one

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan30° = $\frac{opposite}{adjacent}$ = $\frac{AC}{BC}$ = $\frac{b}{8}$

Multiply both sides by 8

8 × tan30° = b, that is

b = 8tan30°

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I need help with this if anyone can help

Fiesta28 [93]

Answer: $\Large\boxed{Fourth~Choice.~f(x)=2-i}$

Concept:

Here, we need to know the power of imaginary numbers

i = √(-1)

i² = -1

i³ = -i

i⁴ = 1

Solve:

Given function expression

$f(x)=x^3-2x^2$

Given the requirement of the question

To find the expression for f(i)

Substitute values into the expression

$f(x)=(i)^3-2(i)^2$

Simplify the exponents

$f(x)=(-i)-2(-1)$

Expand the parenthesis

$f(x)=-i-(-2)$

$\Large\boxed{f(x)=2-i}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

1 year ago

Read 2 more answers

1.) What is the solution to the system of equations below? y = 2x + 8 3(-2x + y) = 19

-BARSIC- [3]

Answer:

y = 2x + 8

6x + 3y = 19

6x + 3(2x + 8) = 19

6x + 6x + 24 = 19

12x = -5

x = -5/12

y = 2(-5/12) + 8

y = -5/6 + 48/6

y = 43/6

3 0

3 years ago

Solve the equation below. Pls include work 28.10 = 15.5 + 5x

madreJ [45]

Answer:

2.52

Step-by-step explanation:

5x + 15.5 = 28.1

subtract 15.5 from both sides

5x = 12.6

divide both sides by 5

x = 2.52

5 0

2 years ago

Read 2 more answers

The diameter of a circular swimming pool is 8.5 m. What is the approximate circumference of the pool? Round to the nearest tenth

artcher [175]

I think the answer to this equation is26.7 $x^{2}$ .

4 0

3 years ago

LOTS OF POINTS, WILL MARK BRAINLIEST! pls show working!!!!!

sp2606 [1]

Answer: ΔTAU ≈ ΔUAV ≈ ΔTUV

Step-by-step explanation:

I'm not really sure what "work" you really need; this is a problem that can be solved easily by simply looking at the triangles and seeing which sides have the same ratio of distances for each side.

Best of luck with your assignment. :) Feel free to give me Brainliest if you feel this helped. Have a good day.

8 0

1 year ago