MATHEMATICS HIGH SCHOOL

The sum of the three interior angles of a triangle is 180 degrees.(there can be more than 1 answer)
please help

a.) x · y · z = 180°
b.) x + y + z = 180°
c.) 3a = 180°
d.) a + 55° + 36° = 180°
e.) x³ = 180°

Answers

Answer 1
Answer: It can be b), c) and d).

b) because it says the sum of three angles — this one’s the most obvious, as we can look at x, y and z as three different angles that sum up to 180.

c) works because 3a is, in essence, a + a + a, which we can look at as the sum of 3 angles that adds up to 180.

d) because we already have 2 angles, and “a” is just an unknown angle. It all sums up to 180.

a) and e) dont work because they involve multiplying (x*y*z and x*x*x) and the problem says we need to look for the sum of angles, not the product. :)

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Write an equation of the line with the given point and slope
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Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?
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the relationship between x and y is proportional. when x is 3 and y is 15. what is x when y is 60? what is the value of x.

Answers

12. 15 divided by 5 is 3, and 60 divided by 5 is 12. Hope this helps and hangs a great day!

Lynn street, Allen street, and route 11 form the boundaries of a triangular forest, as shown in the map below.

Answers

There are 2 triangles there. So the formula for a triangle is BxH/2. So base of 36km x 15km = 540/2= 270km squared.
Then the second triangle 20km x 15 km=300/2=150km squared.
Next add the two triangles together so
270km squared + 150km squared= 420km squared.
420km squared is your answer
Do you remember how to find the area of a triangle ?

Is the area (1/2) (base) x (height) ?

On the map, the base and the height are conveniently labeled for you. 
The base is (20 + 36) = 56 km, and the height is 15 km.

I'm sure you can handle it from there, and earn yourself 5 points.

The sum of three consecutive even numbers is 78 , what is the first number

Answers

Hi there, n+(n+2)+(n+4)=78, n+n+2+n+4=78, 3n+6=78, 3n=78-6, 78-6=72 so, 3n=72, divide both sides by 3 and we get n=72/3, 72 divided by 3 equals 24. So, the first number is 24.
So,  here is how I do it.  I take the big number (78) and divide it by the amount of numbers (3).  78/3=26.  The answer you get from that is the middle number.  Then I take the number before it and the number after it (25 and 27).  These are your first and last numbers.  25 is the first number

Which number line represents the solution set for this inequality?

−9x −12 ≤ 42

Answers

Number line 4 will represent the solution set of given inequality

−9x −12 ≤ 42.

What is inequality?

When two numbers or algebraic expressions are in opposition to one another, this is known as an inequality. It can be expressed as greater than, greater than or equal to, less than, or less than or equal to.

Given:

−9x −12 ≤ 42

-9x-12+12≤42+12

-9x ≤ 54

-9x/-9 ≤ 54/-9

x ≤ -6

To know more about inequality please visit:

brainly.com/question/28823603

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Answer:

Number line 4

Step-by-step explanation:

−9x −12 ≤ 42

-9x-12+12≤42+12

-9x≤54

-9x/-9≤54/-9

x≤-6

Geometry help ASAP please! :)

Answers

Since this figure is a parallelogram then the opposite are equal to each other.

AD = BC

Plug in

2x + 2 = 3x - 1

-2x -2x

-------------------------

2 = x - 1

+1 +1

-------------------------

3 = x

-------------------------

x = 3

Step-by-step explanation:

2x + 2 = 3x - 1

-2x -2x

2 = x - 1

+1 +1

x = 3

Joshua was offered a job that paid a salary of $77,500 in its first year. The salary was set to increase by 2% per year every year.If Joshua worked at the job for 5 years, what was the total amount of money earned over the 5 years, to the nearest whole
number?

Answers

Answer:

if you want it as dollars and cents it is $77.50 but in nearest whole number it would be 78 dollars

Step-by-step explanation:

step 1: multiply the 2 by 5 and you get 10%

step two: you put 10 over 100 and multiply 77,500

10/100 x 77,500/1= $77.50

but when you roung it off you get 78 dollars

Answer: joshua earned $403,313 over 5 years

Step-by-step explanation:
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