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3 years ago

9

What type of angles are these?

1 answer:

il63 [147K]3 years ago

8 0

Answer:

a: Neither; b: Complementary

Step-by-step explanation:

Complementary= 90 degrees

Supplementary= 180 degrees

For letter a. the answer is neither because 85 +90= 175 degrees, not 90 or 180 degrees.

For letter b. the answer is complementary because 75 +15= 90 degrees.

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Solve the following new equation

mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

$x = \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) } }{2(1)} \\ x = \frac{ - 3± \sqrt{9 + 28} }{2} \\ \\ x = \frac{ -3 ± \sqrt{37} }{2} \\ \\ x = \frac{ - 3 + \sqrt{37} }{2} \: \: \: \: \: or \: \: \: x = \frac{ - 3 - \sqrt{37} }{2} \\ \\ x = 1.54 \: \: \: or \: \: x = - 4.54$

Hope this helps you

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3 years ago

What is the reciprocal?<br><br> -2 8/9

scoray [572]

Answer:

Step-by-step explanation:

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3 0

3 years ago

Cual es el volumen del cubo de rubick cuya arista mide 3 cm

Natasha2012 [34]

For this case we are asked the following question:

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$V = l ^ 3$

Where:

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$l = 3 \ cm$

Substituting:

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Answer:

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6 0

3 years ago

the perimeter of a rectangle is 61 centimeters. The length is 4.1 centimeters longer then the width, w . Write and solve an equa

anygoal [31]

The width of the rectangle is 8.2

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mario62 [17]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers