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2 years ago

What does the some of triangles always equal?

Mathematics

2 answers:

melamori03 [73]2 years ago

5 0

Answer:

the sum of angles of a triangle equals the straight angle (180 degrees, radians, two right angles, or a half-turn).

Mumz [18]2 years ago

4 0

Answer:

the angles always equal 180

Step-by-step explanation:

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Graham decided to play football this year instead of getting a part-time job. Last year he made about $1,100 during football sea

atroni [7]

10,091 because it's a 10 season football season and he spends 9 dollars every game

Step-by-step explanation:

7 0

3 years ago

Does this graph show a function? Explain how you know.

GREYUIT [131]

Answer:

the answer is C. No, it fails the vertical line test.

3 0

3 years ago

Find the smallest positive integer n such that the digit sum of n is divisible by 5, and the digit sum of n +1 is also divisible

alisha [4.7K]

Answer:

139,999

Step-by-step explanation:

If the digit sum of n is divisible by 5, the digit sum of n+1 can't physically be divisble by 5, unless we utilise 9's at the end, this way whenever we take a number in the tens (i.e. 19), the n+1 will be 1 off being divisble, so if we take a number in the hundreds, (109, remember it must have as many 9's at the end as possible) the n+1 will be 2 off being divisble, so continuing this into the thousands being three, tenthousands being 4, the hundred thousands will be 5 off (or also divisble by 5). So if we stick a 1 in the beginning (for the lowest value), and fill the last digits with 9's, we by process of elimination realise that the tenthousands digit must be 3 such that the digit sum is divisible by 5, therefore we get 139,999

6 0

2 years ago

a bridge has a sigh that says "maximum weight 6 tons". if a truck weighs 13,000 pounds is it to heavy to cross the bridge.

bija089 [108]

Answer:

yes

Step-by-step explanation:

6 0

2 years ago

Function f approximately represents the trajectory of an airplane in an air show, where x is the horizontal distance of the flig

UNO [17]

Answer:

C. is your answer

Step-by-step explanation:

In order to determine the line of symmetry, it would help to put this standard form parabola into vertex form, which is

$y=a(x-h)^2+k$ ,

where x = h is the equation of the line of symmetry.

To get this into vertex form we will complete the square. The first couple of steps I will combine into 1. We will set the quadratic equal to zero, then move the constant over to the other side:

$88x^2-264x=-300$

The next rule is that the leading coefficient HAS to be a positive 1. Ours is a positive 88, so we have to factor it out:

$88(x^2-3x)=300$

Now we can perform the process of completing the square. The rule is to take half the linear term, square it, and add it to both sides. Our linear term is 3. Half of 3 is 3/2, and 3/2 squared is 9/2. We will add 9/2 inside the parenthesis on the left, but don't forget about that 88 sitting out front which refuses to be ignored. It serves as a multiplier into the parenthesis. What we actually added in, then, was 88(9/2) which is 198:

$88(x^2-3x+\frac{9}{4})=-300+198$

The purpose of completing the square is to give us a perfect square binomial which serves as the axis of symmetry of the parabola and also gives us the h coordinate of the vertex. We will state that binomial and at the same time do the addition on the right:

$88(x-\frac{3}{2})^2=-102$

Now we can move the constant back over and set it back equal to y:

$y=88(x-\frac{3}{2})^2+102$

From that form you can see that the equation of the line of symmetry is x = 1.5. The coordinates of the vertex are (1.5, 102). If we move 1 unit to the left of the vertex, or 1 unit to the right of the vertex, we will be at the same height.

C then is your answer.

3 0

3 years ago

Read 2 more answers