All possible equal number combinations of 120

Mathematics

1 answer:

Makovka662 [10]4 years ago

7 0

1,120
2,60
3,40
4,30
5,24
6,20
8,15
10,12

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Dave purchased 3 notebooks for a cost of $6.29 each before tax. He gave the cashier

AfilCa [17]

$0=20-3*6.29*1.06
(Actually he’s short 2 thousandths of a penny)

8 0

3 years ago

lianna [129]

Using relations in a right triangle, it is found that:

tan(A) = 3/4 = 0.75.

<h3>What are the relations in a right triangle?</h3>

The relations in a right triangle are given as follows:

The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.

The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.

The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

In this triangle:

The adjacent side to A has length 40.

The opposite side to A has length 30.

Hence the tangent of A is:

tan(A) = 30/40 = 3/4 = 0.75.

More can be learned about relations in a right triangle at brainly.com/question/26396675

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5 0

2 years ago

Find the standard equation of the circle defined by the equation x^2 + y^2 +8x - 12y + 43 = 0. ANSWERS ATTACHED, due in 2 HOURS,

puteri [66]

Answer:

Solution: Option C

Step-by-step explanation:

Our goal here is to factor the expression such that it is converted into the circle equation (x - a)² + (y - b)² = r² where r = radius centered at point (a,b).

$x^2\:+\:y^2\:+8x\:-\:12y\:+\:43\:=\:0$ (Factor the expression "x² + 8x")

$x^2+8x = x\left(x+8\right)$ (Factor the expression "y² - 12y")

$\:y^2-12y =y\left(y-12\right)$

That leaves us with the expression $\left(x-\left(-4\right)\right)^2+\left(y-6\right)^2=3^2$ , or in other words $(x+4)^2 +(y-6)^2 = 9$ . As you can see our solution is option c.