3 years ago

Evaluate the following expression. (-3)-2

Mathematics

1 answer:

natta225 [31]3 years ago

4 0

-5 is your answer :))))

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Angle K and angle L are complementary angles. If angle k = (3x + 3)" and angle k= (10x - 4)". find the

soldier1979 [14.2K]

Answer:

3X+3+10X-4=90

13X-1=90

13X=91

X=91/13=7

<K=10X7-4

70-4

<K=66(SUM OF COMPLEMENTARY ANGLE =90)

<K=24

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2 years ago

What is the equation for

WARRIOR [948]

The equation of a line that is perpendicular to the given line is y = –4x – 16.

Solution:

The equation of a line given is y = 0.25x – 7

Slope of the given line( $m_1$ ) = 0.25

Let $m_2$ be the slope of the perpendicular line.

Passes through the point (–6, 8).

<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>

$\Rightarrow m_1 \cdot m_2=-1$

$\Rightarrow 0.25\cdot m_2=-1$

$\Rightarrow m_2=\frac{-1}{0.25}$

$\Rightarrow m_2=-4$

Point-slope intercept formula:

$y-y_1=m(x-x_1)$

$x_1=-6, y_1=8$ and $m=-4$

Substitute these in the formula, we get

$y-8=-4(x-(-6))$

$y-8=-4(x+6)$

$y-8=-4x-24$

Add 8 on both sides of the equation.

$y-8+8=-4x-24+8$

$y=-4x-16$

Hence the equation of a line that is perpendicular to the given line is

y = –4x – 16

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3 years ago

Choose the number line of the solution to this inequality. c - 12 ≥ -16

MissTica

Answer: Yes

Step-by-step explanation:

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3 years ago

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gladu [14]

Im not sure but I think the correct answers are:

3. B
4. A

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2 years ago

Kyle solved 18 of 24 puzzles ina puzzle book. He says that he can use an equivalent fraction to find the percent of puzzles in t

Rashid [163]

$\frac{18}{24} = \frac{9}{12} = \frac{3}{4}$
The percentage is 75℅

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3 years ago