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3 years ago

How far is a chord of length 8cm from the centre of a circle of radius 5cm

Mathematics

1 answer:

alex41 [277]3 years ago

4 0

I think the answer is 3cm I’m not 100% sure

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Two sides of a triangle have measures of 6 inches and 12 inches. Which measure could be the length of the third side?

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Simplify the expression.<br> 9a2b4<br> 3a3b3

Naddik [55]

Answer:

Step-by-step explanation:

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Trigonometry help; how would I even do these?

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2 years ago

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Angle 6= (11x+8) and angle 7=(12x-4) what is the measure of angle 4

Hitman42 [59]

Answer:

Answer is m∠4=40

Step-by-step explanation:

take note that m∠6 & m∠7 are vertical angles. Vertical angles are equal to each other, therefore m∠6 is equal to m∠7.

m∠6 = m∠7 (vertical angles)

11x + 8 = 12x – 4

12x - 11x = 8 + 4

x = 12

m∠6 = 11x + 8

m∠6 = 11(12) + 8

m∠6 = 132 + 8

m∠6 = 140

m∠4 = 180 - m<6

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m∠4 = 40

6 0

3 years ago

If f(x) = x^2-1 which of the following ordered pairs would be on the graph of f(x)

Alex Ar [27]

These following ordered pairs are on the graph:

(0,1)
(5, 24)
(-2,3)

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An ordered pair (x, f(x)) will be on the graph if replacing them into the equation, we get an equivalence.

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The equation is:

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

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

(0,1)

Here, we test $x = 0, f(x) = 1$

Replacing into the equation:

$1 = 0^2 - 1$

$1 = -1$

False, so not on the graph.

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

(0,1)

Here, we test $x = 1, f(x) = 0$

Replacing into the equation:

$0 = 1^2 - 1$

$0 = 0$

True, so on the graph.

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

(3,5)

Here, we test $x = 3, f(x) = 5$

Replacing into the equation:

$5 = 3^2 - 1$

$5 = 8$

False, so not on the graph.

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

(5,24)

Here, we test $x = 5, f(x) = 24$

Replacing into the equation:

$24 = 5^2 - 1$

$24 = 24$

True, so on the graph.

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

(-2,3)

Here, we test $x = -2, f(x) = 3$

Replacing into the equation:

$3 = (-2)^2 - 1$

$3 = 3$

True, so on the graph.

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

(-4,-17)

Here, we test $x = -4, f(x) = -17$

Replacing into the equation:

$-17 = (-4)^2 - 1$

$-17 = 15$

False, so not on the graph.

A similar question is given at brainly.com/question/2102317

6 0

3 years ago