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3 years ago

Find tan(ZA) 20/21 21/20 21/29 20/29

Mathematics

1 answer:

lawyer [7]3 years ago

6 0

I don’t know

You have to multiply the Asian Brothers by the Asian brothers

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Someone help me please

harkovskaia [24]

$45 - 15% = $38.25

$53 - 20% = $42.04

So the Forever 21 dress would cost less.

Hope this helped.

7 0

2 years ago

Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes.y=-2/5x+11/5

ivanzaharov [21]

Answer:

y-intercept (0,11/5)

x-intercept (11/2,0)

Step-by-step explanation:

The y-intercept is obtained when the x-coordinate equals 0 (x=0)

so the y-intercept is (0,11/5)

The x-intercept is obtained when the y-coordinate equals 0 (y=0)

In this case

0 = -(2/5)x+11/5---->(2/5)x = 11/5 ----> x=(5*11)/(5*2) = 11/2

So the x-intercept is (11/2,0)

5 0

3 years ago

Identify the type of triangles

Margarita [4]

answer 6cm , 3cm , 6cm, this the answer

4 0

2 years ago

Read 2 more answers

An object is thrown upward at a speed of 96 feet per second by a machine from a height of 14 feet off the ground. The height of

liberstina [14]

Answer:

$8t^2 -48 t -7=0$

$x =\frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where:

a= 8, b =-48, c = -7 and replacing we got:

$t_1 = \frac{48 - \sqrt{(-48)^2 -4(8)(-7)}}{2*8} = -0.1425$

$t_2 = \frac{48 + \sqrt{(-48)^2 -4(8)(-7)}}{2*8} = 6.142$

And since the time cannot be negative the correct answer for this cae would be t = 6.142 s

Step-by-step explanation:

If the question is: When will the object hit the ground at when the time is how many seconds?

We have the function for the heigth given by:

$h(t) = -16t^2 +96 t +14$

And we want to find the time where $h(t) =0$ so we can set like this the condition:

$0 =-16t^2 +96 t +14$

And we can rewrite the expression like this:

$16t^2 -96 t -14 =0$

We can divide both sides of the equation by 2 and we got:

$8t^2 -48 t -7=0$

And we can use the quadratic equation to solve for t like this:

$x =\frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where:

a= 8, b =-48, c = -7 and replacing we got:

$t_1 = \frac{48 - \sqrt{(-48)^2 -4(8)(-7)}}{2*8} = -0.1425$

$t_2 = \frac{48 + \sqrt{(-48)^2 -4(8)(-7)}}{2*8} = 6.142$

And since the time cannot be negative the correct answer for this cae would be t = 6.142 s

7 0

3 years ago

Read 2 more answers

Okay, so I was supposed to Simplify the expression 4(3x + 2) - 2 and Factor 20b - 16 completely can anyone tell me if I am corre

Roman55 [17]

(4 ) given 4(3x + 2) - 2 ( distribute the bracket by the 4 )

= 12x + 8 - 2 = 12x + 6

given 20b - 16

20 and 16 have a common factor of 4 which can be taken out

= 4( 5b - 4 ) ← in factored form

8 0

3 years ago