3 years ago

A student uses the triangle shown to calculate (A). Find and explain the student's error.

Mathematics

1 answer:

prisoha [69]3 years ago

4 0

the angle between the known sides is not right angle

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2. Is (-3, -9) a solution of the equation y 3x?

QveST [7]

Answer:

if you mean y=3x, then yes

Step-by-step explanation:

solution:

substitute s by -3, we obtain

y= 3 (-3)

y= -9

So, if x= - 3 then it's y= - 9

8 0

3 years ago

Find the slope of the line graphed below.

ivolga24 [154]

Answer:

The answer to your question is $m = - \frac{4}{7}$

Step-by-step explanation:

Process

1.- Find two points of the line (red points)

A ( 4, -5) and B (- 3 , -1)

2.- Find the slope using the formula

$m = \frac{y2 - y1}{x2 - x1}$

Substitution

$m = \frac{-1 + 5}{-3 - 4}$

$m = - \frac{4}{7}$

4 0

3 years ago

jim walks at an average rate of 4 miles per hour. at this rate how long will it take jim to walk 10 miles?

Firdavs [7]

It would take him 2.5 hrs because when you divide 10 by 4 that's what you get

7 0

3 years ago

Read 2 more answers

Write an equation of the line that passes through (3, 1) and (0, 10).<br> y

const2013 [10]

Answer:

Step-by-step explanation:

(10 - 1)/(0 - 3) = -9/3 = -3

y - 1 = -3(x -3)

y - 1 = -3x + 9

y = -3x + 10

7 0

3 years ago

Three more than seven times a number d is equal to fifty nine. What is the value of d?

zepelin [54]

Answer:

d = 8

Step-by-step explanation

Work Backwards:

59 - 3 = 56

56/7 = 8

Therefore d = 8

5 0

3 years ago

Read 2 more answers