3 years ago

All of the following ratios are equivalent except 4 8 to 12 2:3 09

1 answer:

7 0

Answer:

The answer is 2:3 as the order is different. Simplified the first option is 2:3, the second one: 2:3, the third one 3:2 and the fourth one 2:3

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Find the distance between the points (3, 8) and (-1, 9).

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Answer:

9,1

Step-by-step explanation:

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3 years ago

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Read 2 more answers

In the diagram, what is the measure of angle 1?

VLD [36.1K]

We know that
angle (3x) and angle (9x) are supplementary angles
so
3x+9x=180°------> 12x=180°------> x=180°/12-----> x=15°

angle (9x) and angle (1) are supplementary angles
so
9x+∡1=180---------> 9*15+∡1=180
∡1=180-9*15---------> ∡1=180-135------> ∡1=45°

the answer is
∡1 is 45°

alternative method
angle 1 = angle 3x----------> vertical angles
∡1=3x-----> 3*15-----> 45°

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3 years ago

X^2-3x-28=0 what are the roots

Oksi-84 [34.3K]

Answer:

$\large\boxed{x=-4\ \vee\ x=7}$

Step-by-step explanation:

$x^2-3x-28=0\\\\x^2+4x-7x-28=0\\\\x(x+4)-7(x+4)=0\\\\(x+4)(x-7)=0\iff x+4=0\ \vee\ x-7=0\\\\x+4=0\qquad\text{subtract 4 from both sides}\\x=-4\\\\x-7=0\qquad\text{add 7 to both sides}\\x=7$

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3 years ago

Solve the equation 3(x-4)=12x

sineoko [7]

Answer:

X= -4/3

Step-by-step explanation:

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