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Deffense [45]
3 years ago
6

Can anyone help me out?????

Mathematics
2 answers:
kirill [66]3 years ago
7 0

Answer:

30

Step-by-step explanation:

12×5=60 60÷1/2=30

srry if I was wrong

Svetllana [295]3 years ago
6 0

12×5=60 60÷1/2=30 i hope it's right!! :)

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f(2) 42 g(x) = 2x +3 Find 4) (. Include any restrictions on the domain. O A. 2.2---3 417 2 > 0 B. 47 2 2 r--3, (1) (a) = (4)
slamgirl [31]

Answer:

Option D

Step-by-step explanation:

Given f(x) = \sqrt[3]{4x}

g(x) = 2x + 3

Since, (\frac{f}{g})(x)=\frac{f(x)}{g(x)}

                     =\frac{\sqrt[3]{4x}}{2x+3}

This function is defined for the denominator is not equal to zero.

(2x + 3) ≠ 0

x ≠ -\frac{3}{2}

Therefore, Option D will be the correct option.

5 0
2 years ago
There's another!! 12 points
Morgarella [4.7K]

Answer:

Altogether it costs $6.75

If you pay with a $10, you'll get $3.25 back

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A perfectly straight 24 ft tall tree grows on the edge of the bank of a 45 foot wide river. A bird sitting at the top of the tre
True [87]

Answer:

Distance covered by the bird before meeting the water is: 51.264 ft

Step-by-step explanation:

Notice that if the bird catches the fish in 2 seconds, then the fish was able to dive down a total of 6 feet before being caught:

distance=Vel\,* time=3\,\frac{ft}{s} *\,2\,\,s=6 \,\,ft

So the bird needs to fly in the direction of the hypotenuse of a right angle triangle (see attached image) that has one leg of length (24 ft + 6 ft) = 30 ft, and another one 22.5 ft (half the width of the river.

Such hypotenuse is (using Pythagoras theorem):

hyp =\sqrt{(60\,ft)^2+(22.5\.ft)^2} =\sqrt{4106.25} \,ft=64.08\,ft

Now, in order to find the distance D the bird covers from the top of the tree to the water (marked in red in our image), we use similar triangles. The bigger triangle is that of legs 60 ft and 22.5 ft and hypotenuse 64.08 ft.

The smallest triangle we use in the proportion is the one shaded yellow in the image, which has one leg equal to 24 ft, and unknown hypotenuse:

So we make the proportion between known legs, and hypotenuses:

\frac{24\,ft}{30\,ft} =\frac{D}{64.08\,ft} \\D=\frac{64.08\,ft\,*\,24\,ft}{30\,ft} \\D=51.264\,ft

7 0
3 years ago
What value of x would make rq tangent to Circle P at point Q?
Novay_Z [31]
If Q is tangent to circle P, that means that it is perpendicular to the radius at the point of tangency.  This means that ΔPRQ would be a right triangle.  We can use the Pythagorean theorem to solve this.
9² + 12² = (x+9)²
We use x+9 because the unknown segment x would combine with the radius, 9, to give that side of the triangle (the hypotenuse).
81 + 144 = (x+9)(x+9) ---- remember that squared means multiplied by itself
225 = (x+9)(x+9)
Multiply the right hand side:
225 = x² + 9x + 9x + 81
225 = x² + 18x + 81
Subtract 225 from both sides:
225 - 225 = x² + 18x + 81 - 225
0 = x² + 18x - 144
Use the Quadratic Formula to solve:
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}
\\
\\x=\frac{-18 \pm \sqrt{18^2-4(1)(-144)}}{2(1)}
\\
\\x=\frac{-18 \pm \sqrt{324--576}}{2}
\\
\\x=\frac{-18 \pm \sqrt{324+576}}{2} = \frac{-18 \pm \sqrt{900}}{2}
This gives us
x=\frac{-18 \pm 30}{2} = \frac{-18+30}{2} \text{ or } \frac{-18-30}{2}
Since -18 - 30 = -48, and a negative number doesn't make sense in this situation, we have 
x = (-18+30)/2 = 12/2 = 6.

7 0
3 years ago
Read 2 more answers
Solve the equation 5(x + 2) = 6x + 3x − 14, and show your work
skelet666 [1.2K]

open the brackets

5x+10

5x+10=6x+3x-14

10+14=6x+3x-5x

24=9x-5x

24=4x

24 divided by 4=6

so x=6

6 0
3 years ago
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