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3 years ago

PLEASE HELP I WILL MARK BRAINLIST!!

Mathematics

1 answer:

marshall27 [118]3 years ago

7 0

14: $\frac{1}{2} = \frac{8}{1}$ $\frac{x}{y} = \frac{56}{1}$

56/8 = 7 so multiply 1/2 by 7/1 to get the unidentified fraction "x/y"

1/2 · 7/1 = 7/2 or 3 1/2

15. $\frac{2}{5} = \frac{x}{100}$

to get from 100 to 5, you would divide by 20, so to solve for x, multiply 2 by 20, to get a product of 40.

40/100 = 40% or D

16. $\frac{3}{5} = \frac{12}{x}$

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The vertex formation of a parabola is x = 8(y- 1)2-76.

Gennadij [26K]

Answer:

$\boxed{x=8y^2-16y-68}$

Step-by-step explanation:

Hello, please consider the following.

$x=8(y- 1)^2-76\\\\x=8(y^2-2y+1)-76\\\\x=8y^2-16y+8-76\\\\\boxed{x=8y^2-16y-68}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0

4 years ago

Read 2 more answers

Evaluate the log by thinking “3 to what power is 1/9 so log3(1/9) =

Vlad [161]

Answer:-2

Step-by-step explanation:

Log3(1/9)

Log(1/9) ➗ Log3

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Log3^(-2) ➗ Log3

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-2

8 0

3 years ago

Which equation is the Gizmo using to find the x coordinates

wlad13 [49]

Answer:

The correct answer is C. $(0,10)$ .

Step-by-step explanation:

The polar coordinates are defined in terms of r and θ, where r is the distance of the point from the origin and θ is the angle made with the positive x-axis.

To convert from Polar Coordinates (r, θ) to Cartesian Coordinates (x, y) apply the following conversion formulas:

$x = r\cos \theta \\y = r\sin \theta$

We know that $r=10$ and $\theta = 0.5\pi$

So, the cartesian coordinates are,

$x=10\cos \left(0.5\pi \right)=10\cos \left(\frac{1}{2}\pi \right)=10\cos \left(\frac{\pi }{2}\right)\\\\\mathrm{Use\:the\:following\:trivial\:identity}:\quad \cos \left(\frac{\pi }{2}\right)=0\\\\x=10\cdot \:0\\x=10$

$y=10\sin \left(0.5\pi \right)=10\sin \left(\frac{1}{2}\pi \right)=10\sin \left(\frac{\pi }{2}\right)\\\\\mathrm{Use\:the\:following\:trivial\:identity}:\quad \sin \left(\frac{\pi }{2}\right)=1\\\\y= 10$

The correct answer is C. $(0,10)$ .

7 0

4 years ago

A Dallas-area radio station plays songs from a specific, fixed set of artists. The station has no DJ; instead, a computer random

fgiga [73]

There are three ways to achieve the combination of one male singer, one female singer, and no voice instrumental

Male - Female - No Voice
Male - No Voice - Female
Female - Male - No Voice
Female - No Voice - Male
No Voice - Male - Female
No Voice - Female - Male

For each combination, the probabilities are
MFN = 0.45×0.4×0.15 = 0.027
MNF = 0.45×0.15×0.4 = 0.027
FMN = 0.4×0.45×0.15 = 0.027
FNM = 0.4×0.15×0.45 = 0.027
NFM = 0.15×0.4×0.45 = 0.027
NMF = 0.15×0.45×0.4 = 0.027

Then add all the probabilities we have 0.027×6 = 0.162

4 0

3 years ago

Read 2 more answers

The data below represents the number of customers at each Slurpee Sam's Spaghetti Shop. 24, 25, 29, 30, 31, 31, 32, 34, 34. Whic

NeX [460]

Answer:

A summary of the data is as follows;

1. Maximum = 34

2. Minimum = 24

3. The 1st quartile is 27

4. The median is or the 2nd quartile 34

5. The 3rd quartile is 33