3 years ago

A circle is centered on point B. Points A, C and D lie on it's circumference.

Mathematics

2 answers:

kvasek [131]3 years ago

8 0

Answer:

Step-by-step explanation:

i just did this one

IrinaVladis [17]3 years ago

3 0

The measure of the angle ADC is 20°

Explanation:

Given:

∠ABC = 40°

∠ADC = ?

We know:

Angle subtended at the center is twice the angle subtended at the circumference.

Thus,

∠ABC = 2 x ∠ADC

On substituting the value we get:

40° = 2 X ∠ADC

∠ADC = 20°

Therefore, the measure of the angle ADC is 20°

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Determine the factors of 3x2 + 10x − 8. (Which is the right answer?)

VMariaS [17]

ANSWER

$(3x - 2)(x + 4)$

EXPLANATION

The given quadratic trinomial is

$3 {x}^{2} + 10x - 8$

Comparing to the general quadratic trinomial:

$a{x}^{2} + bx + c$

We have a=1, b=10 and c=-8

$ac = 3 \times - 8 = - 24$

The factors of -24 that adds up to 10 are -2 and 12.

We split the middle term to obtain;

$3 {x}^{2} + 12x - 2x- 8$

Factor;

$3x(x+ 4) - 2(x + 4)$

Factor further;

$(3x - 2)(x + 4)$

The last option is correct.

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3 years ago

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RSB [31]

The answer would be a. 288. hope that helped

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3 years ago

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Inga [223]

Answer:

Step-by-step explanation:

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3 years ago

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3(2 + f) = -15 A. 3 B. 7 C. -3 D. -7

Scilla [17]

Answer:

D. (-7)

Step-by-step explanation:

3(2 + f) = (-15)

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2 years ago

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A cube has a volume of 1,000 cubic feet. What is the edge length of the cube?

Komok [63]

Answer:

Step-by-step explanation:

The volume of a cube is equal to its (side length)^3

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