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2 years ago

What is x(32/18) = 1000 Solve for X

Mathematics

2 answers:

GaryK [48]2 years ago

7 0

X= 1000÷ 32/18
x=562.5

Deffense [45]2 years ago

3 0

The answer is 32x /18=1000

1.77

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What is equal to -5/4

sleet_krkn [62]

− 10/8

− 15/12

− 20/16

− 25/20

− 40/32

These are all equal, the list could go on but here are many

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2 years ago

1)a chord of length 18cm midway the radius of a circle. calculate the radius of the circle correct to 1d.p. 2)if two parallel ch

kykrilka [37]

Part 1:

Given that the length of the chord is 18 cm and the chord is midway the radius of the circle.

Thus, half the angle formed by the chord at the centre of the circle is given by:

$\cos\theta=\frac{\left( \frac{1}{2} r\right)}{r}= \frac{1}{2} \\ \\ \Rightarrow\theta=\cos^{-1}\left( \frac{1}{2} \right)=60^o$

Now,

$\sin60^o= \frac{9}{r} \\ \\ \Rightarrow r= \frac{9}{\sin60^o} =10.392$

Therefore, the radius of the circle is 10.4 cm to 1 d.p.

Part 2I:

Given that the radius of the circle is 10 cm and the length of chord AB is 8 cm. Thus, half the length of the chord is 4cm. Let the distance of the mid-point O to /AB/ be x and half the angle formed by the chord at the centre of the circle be θ, then

$\sin\theta= \frac{4}{10} = \frac{2}{5} \\ \\ \theta=\sin^{-1}\left( \frac{2}{5} \right)=23.6^o$

Now,

$\cos23.6^o= \frac{x}{10} \\ \\ \Rightarrow x=10\cos23.6^o=9.165\approx9.2cm$

Part 2II:

Given that the radius of the circle is 10cm and the angle distended is 80 degrees. Let half the length of chord CD be y, then:

$\sin40^o= \frac{y}{10} \\ \\ \\ \Rightarrow y=10\sin40^o=6.428$

Thus, the length of chord CD = 2(6.428) = 12.856 which is approximately 12.9 cm.

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2 years ago

1 Kembangkan setiap yang berikut.<br> (a) 3x(2 - xy)<br> (b) (4p + 9(-2)

Goryan [66]

Answer:

6x*2-3x*2y

4p-18

Step-by-step explanation:

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2 years ago

Total time it takes to clean: 2 1/2 hours time per session: 1/4 hour how many sessions will it take to completely clean the room

Tresset [83]

10 sessions (1/4 • 10 = 2 1/2)

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2 years ago

Need help in algebra fast

Gennadij [26K]

Answer:

Step-by-step explanation:

This is a strict inequality so the line must be dotted, meaning it can only be A or D.

The inequality says that y is less than -2x+4 so we want the region under the line, making A the correct answer.

5 0

3 years ago