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3 years ago

The diagram shows a sector of a circle of radius 4 cm. work out the length of the arc abc

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

3 0

Need to know the angle for this I think?

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A rectangle has an area of 24 square centimeters. The width of the rectangle is 3 centimeters. What is the length of the rectang

Luden [163]

Answer:

The answer is 8.

Step-by-step explanation:

Area = Length times width. Since division and multiplcation are inverse operations, we can do 24 divided by 3 to get 8, so to get the area of 24, you would do 8 x 3.

7 0

4 years ago

Find the midpoint of the line segment joining the points R(3,2) and S(-5,5).

inessss [21]

The x coordinates are 3 and -5. They add to 3+(-5) = -2

Cut this in half to get -2/2 = -1

The x coordinate of the midpoint is x = -1

-------------------

The y coordinates are 2 and 5. They add to 2+5 = 7.

Then we cut this in half to get 7/2 = 3.5

The y coordinate of the midpoint is y = 3.5

-------------------

Overall, the midpoint is (-1, 3.5)

<h3>Answer: (-1, 3.5) which is the same as (-1, 7/2)</h3>

6 0

3 years ago

< B.5 14. Multiply & simplify: (3x + 4)(x + 1)

kondor19780726 [428]

Answer:

$3x^2+7x+4$

Step-by-step explanation:

Using FOIL (First, outer, inner, last)

First, we multiply 3x and x to get $3x^2$ (First)

We then multiply 3x and 1 to get $3x$ (outer)

Then 4 and x to get $4x$ (Inner)

Then multiply 1 and 4 to get $4$ (last)

Since the quadratics are all positive, we add all the terms together to get:

$3x^2+3x+4x+4$ . Since 3x and 4x are like terms, we add them together and simplify to get:

$3x^2+7x+4$

And since we can't simplify any further, that's our answer!

Hope this helps :D

6 0

3 years ago

Read 2 more answers

This is a question for advanced calculus V=lwh?

dangina [55]

V = l.w.h

Solving for l

l = V/wh

Solving for w

w = V/lh

Solving for h

h = V/lw

3 0

4 years ago

Read 2 more answers

Find the length of YXZ.<br> A.s=3<br> B.s=60<br> C.s=75<br> D.s=236

Damm [24]

R = 15

The circumference of circle: $C=2\pi r$

subtitute: $C=2\pi\cdot15=30\pi$

$1\ rad=\dfrac{180^o}{\pi}\to5\ rad=5\cdot\dfrac{180^o}{\pi}=\dfrac{900^o}{\pi}$

$\dfrac{5\ rad}{360^o}=\dfrac{\frac{900^o}{\pi}}{360^o}=\dfrac{900^o}{\pi}\cdot\dfrac{1}{360^o}=\dfrac{5}{2\pi}$

$s=\dfrac{5}{2\pi}C\to s=\dfrac{5}{2\pi}\cdot30\pi=75$

Answer: C. s = 75

7 0

3 years ago