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4 years ago

Express in terms of i: ( -12 ) − ( -3 )

1 answer:

6 0

(-12) + 1(-3)
-12 + -1(-3)

Multiply⇒ -1 × -3
-12 + 3

Then combine all the like terms ⇒ -12 + 3

And, finally you're left with -9

So, -9 is your answer

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ILL MARK BRAINIEST IF U DO THIS RIGHT!!!

barxatty [35]

Answer:

D because even though the flat fee is 150 paying 5$ a hour it will cost less

6 0

3 years ago

Which rule explains why these triangles are congruent?

Naddika [18.5K]

A= angle
S= side
This would be AAA, so the answer is C since that answer is not here:)

4 0

3 years ago

13 - 8m = 21<br> por favor ayuda

Ulleksa [173]

Si estás tratando a encontrar M este es
13-8m=21
8m=8
M=1

6 0

3 years ago

HELP ME!! im so stumped. will give brainliest!

Olegator [25]

Answer:

$x=1+\sqrt{3}$ and $x=1-\sqrt{3}$

Step-by-step explanation:

We have been given the parabola with vertex (1, -9) and y intercept at (0, -6).

Now we need to find the x-intercepts of that parabola. So first we begin by finding the equation of parabola using vertex formula:

$y=a\left(x-h\right)^2+k$

Vertex for this formula is given by (h,k)

Compare that with given vertex (1,-9), we get: h=1, k=-9

So plug these into vertex formula:

$y=a\left(x-1\right)^2-9$ ...(i)

Plug given point (0, -6). into (i)

$-6=a\left(0-1\right)^2-9$

$-6=a\left(-1\right)^2-9$

$-6=a\left(1\right)-9$

$-6+9=a$

$3=a$

Plug a=3 into (i)

$y=3\left(x-1\right)^2-9$

Now to find x-intercept, we just plug y=0 and solve for x

$y=3\left(x-1\right)^2-9$

$0=3\left(x-1\right)^2-9$

$9=3\left(x-1\right)^2$

$3=\left(x-1\right)^2$

$\pm \sqrt{3}=x-1$

$1+\pm \sqrt{3}=x$

Hence final answer are

$x=1+\sqrt{3}$ and $x=1-\sqrt{3}$

4 0

3 years ago

David is filling a cylindrical cup with medication for his next patient. If he only fills the cup half way, what is the volume o

nignag [31]

Answer:

Volume of medication in the cup = 50.24 cubic inches

Step-by-step explanation:

Volume of the cylindrical cup = πr^2h

Radius, r = 2 inches

Height, h = 8 inches

Volume of the cylindrical cup = πr^2h

= 3.14 × 2^2 × 8

= 3.14 × 4 × 8

= 100.48

Volume of the cylindrical cup = 100.48 cubic inches

If David only fills the cup half way,

then, the volume of medication in the cup = Total volume of the cylinder / 2

= 100.48 inches / 2

= 50.24 cubic inches

volume of medication in the cup = 50.24 cubic inches

7 0

3 years ago