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3 years ago

Which equation represents a horizontal line? A. x=y=2 B. y=x+1 C. x=2 D. y=2

Mathematics

1 answer:

RSB [31]3 years ago

8 0

A horizontal line can be represented as y = a number.

Therefore D. y=2 is a horizontal line.

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BD is the bisector of angle ABC , angle ABD = (7x+2) and DBC = 2(46- x) find the measure of angle ABC.

yKpoI14uk [10]

4ft let me know if it’s correct

4 0

2 years ago

The equation that passes through (3,6) and is perpendicular to 3x - 4y = - 2

Fynjy0 [20]

Answer:

Step-by-step explanation:

We want the equation of the line that passes through (3, 6) and is perpendicular to:

$3x-4y=-2$

First, convert the second equation into slope-intercept form:

$-4y=-3x-2\Rightarrow \displaystyle y=\frac{3}{4}x+\frac{1}{2}$

So, we can see that the slope of the line is 3/4.

The slopes of perpendicular lines are negative reciprocals of each other.

Therefore, the slope of the new line is -4/3.

It passes through the point (3, 6).

We can use the point-slope form:

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

Substitute:

$\displaystyle y-(6)=-\frac{4}{3}(x-3)$

Distribute:

$\displaystyle y-6=-\frac{4}{3}x+4$

Therefore:

$\displaystyle y=-\frac{4}{3}x+10$

The answer is C.

5 0

2 years ago

What is the mean of this? 48, 12, 35, 57, 42, 15, 74, 29

malfutka [58]

$\begin{gathered} \text{Mean = }\frac{\sum ^{}_{}X}{n} \\ =\text{ }\frac{48\text{ +12+35+57+42+15+74+29}}{8} \\ =\frac{312}{8} \\ =39 \end{gathered}$

5 0

8 months ago

Mary is flying a kite and has let out 50 yards of kite string. Mary’s kite is directly above Erika.

ch4aika [34]

The distance of Erika from kite directly is 35.71 yards

Step-by-step explanation:

Considering the given situation as a right triangle with string as hypotenuse and the distance between both girls as base

So,

$h = 50\ yards\\b = 35\ yards$

As the triangle is a right triangle, we can use pythagoras theorem to solve this problem.

$h^2 = b^2 + p^2\\p^2 = h^2 - b^2\\p^2 = (50)^2 - (35)^2\\p^2 = 2500-1225\\p^2 = 1275\\\sqrt{p^2} = \sqrt{1275}\\p = 35.707\ yards$

Rounding off to nearest hundredth

=> 35.71 yards

Hence,

The distance of Erika from kite directly is 35.71 yards

Keywords: Triangle, Pythagoras

Learn more about triangle at:

#LearnwithBrainly

3 0

2 years ago

1. Use the order of operations to solve for x:

mart [117]

B. -29
6.5(22.4 - 6.8) = 101.4
.7(48) - 15) = 18.6
101.4 + 18.6 = 120
120 - 29 = 91

6 0

3 years ago