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3 years ago

M= -5, point: (7.1.–6.5) Equation of line

Mathematics

1 answer:

OleMash [197]3 years ago

8 0

Answer:

y + 6.5 =-5 (x - 7.1)

Step-by-step explanation:

We can use the point slope equation of a line

y -y1 = m(x-x1)

We have a point and a slope

y - - 6.5 = -5 (x - 7.1)

y + 6.5 =-5 (x - 7.1)

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Write 4–6 sentences explaining why it is important to have precise definitions in mathematics.

dimaraw [331]

Mathematics can be tricky so precise definitions are important. Without them there can be confusion which more often then not will generate a wrong answer. With clear precise definitions it is easier to understand the topic. Therefore, it is easier to get the correct answer.

4 0

3 years ago

Please help I'm almost done the test and need this and one other question

PolarNik [594]

Answer:

$z=68$

Step-by-step explanation:

Use the formula $180\times(n-2)$ to find the sum of the angles in a polygon, given <em>n</em> sides. This formula tells us the angles of this pentagon must add to 540 ( $180\times(5-2)=540$ ).

So, we can setup an equation:

$70+2z+11+119+z+2z=540$

Solve for z:

$200+5z=540$ Combine like terms

$5z=340$ Subtract 200

$z=68$ Divide by 5

Therefore, the value of z = 68.

6 0

3 years ago

the cost of renting a scooter is represented by 3j+5. Write and simplify an expression that represents the cost of renting 6 sco

wariber [46]

Simplified expression that represents the cost of renting 6 scooters is 18 j +30

<u>Step-by-step explanation:</u>

Given data:

The cost of renting of a scooter is represented by 3j +5

So, from that, we can say in general,

The cost of renting of n scooters is represented by

$n \times(3 j+5)$

But according to given, the value of n is 6. i.e. to find the cost for six number of scooters. We can calculate now as follows

So, the cost of renting of a scooter is represented by

$6 \times(3 j+5)=18 j+30$

3 0

3 years ago

Theresa is 14 years younger than her brother. Together, their total age in years is 35.

solniwko [45]

Let :
T = Theresa age
H = her brother
We know :
T = H - 14
T + H = 35
Substitute T
H -14 + H = 35
2H - 14 = 35
2H = 49
H = 49/2 = 24.5
Since we know H = 24.5 we then can substitute it to either equation.
T = H - 14
T = 24.5 - 14
T = 10.5
Theresa is 10.5 years old
Her brother is 24.5 years old

4 0

3 years ago

What is 8 6/15 rounded to the nearest whole number

Lesechka [4]

Answer:

Step-by-step explanation:

5 0

3 years ago