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2 years ago

Helppppppppppppppppppppppppppppppppp!!!!!!!!!!!!!!

Mathematics

1 answer:

allsm [11]2 years ago

5 0

∠DOC is the average of the given angle values,
(170° +44°)/2 = 107°

∠DOB is the supplement to that,
180° -107° = 73°

The appropriate choice is
B) 73°

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A car is driving at 100 kilometers per hour. How far does it travel in 2 seconds?

Alisiya [41]

Answer:

$\frac{1}{18}\ km$ or $\frac{500}{9}\ m$

Step-by-step explanation:

Remember that

1 hour=3,600 seconds

by using proportion

$\frac{100}{3,600}\frac{km}{sec} =\frac{x}{2}\frac{km}{sec} \\ \\x=2*100/3,600\\ \\x=\frac{1}{18}\ km$

Convert to meters

$(1,000)*(\frac{1}{18})=\frac{500}{9}\ m$

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2 years ago

Write an equation in slope-intercept form for the line that has a slope of -4/5 and passes through (0, 7).

patriot [66]

Answer:

A. y = $-\frac{4}{5}$ x + 7

Step-by-step explanation:

Slope intercept form is y = mx + b where m is the slope and b is the y-intercept

It gives us the slope, so we can plug that in: y = $-\frac{4}{5}$ x + b

Next, it gives us a point, so we can plug in the x and y into our equation and solve for b when (x, y)

y = $-\frac{4}{5}$ x + b

7 = $-\frac{4}{5}$ (0) + b

7 = b

Last, complete our equation:

y = $-\frac{4}{5}$ x + b

y = $-\frac{4}{5}$ x + 7

4 0

2 years ago

Determine the slope of a line given points, (-5, 8) and (-8,5).

Contact [7]

Answer:

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

= (5-8)/(-8 - -5)

= -3/(-8+5)

= -3/-3

= 1

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3 years ago

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What is the rest of the expression?

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2 years ago

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kow [346]

Answer:

Step-by-step explanation:

if we consider x as the number we can write this inequality:

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x ≤ 9

7 0

2 years ago