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AnnZ [28]
3 years ago
10

What is the y-coordinate of point W? PLS ASAP

Mathematics
1 answer:
sweet [91]3 years ago
8 0
<h3>Answer:  -1.5</h3>

============================================================

Explanation:

Draw a horizontal line from W to the y axis. You should arrive somewhere between -1 and -2. While this isn't exact, it looks like we should arrive right at the middle of -1 and -2; therefore we should get to -1.5

The y coordinate of W is -1.5

Keep in mind this is based on the assumption we reach the halfway point. Unfortunately, W is not on any horizontal grid lines to be able to determine exactly where W is along the y axis.

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Angle C and angle D are supplementary. If the measure of angle D is 84 degrees, what is the measure
garik1379 [7]

Suplementary is angles add up to 180 degrees

C=180-D

C=180-84

C=96 degrees

Hope this helped :)

3 0
2 years ago
Read 2 more answers
Consider the function f(x)= 2/5x-4
Gre4nikov [31]

Answer: a) \frac{5}{2}x+10=f^{-1}(x)=g(x)

Step-by-step explanation:

Since we have given that

f(x)=\frac{2}{5}x-4

a.) Find the inverse of f(x) and name it g(x).

Let f(x) = y

So, it becomes

y=\frac{2}{5}x-4

Switching x to y , we get

x=\frac{2}{5}y-4

5x=2y-20\\\\5x+20=2y\\\\\frac{5x+20}{2}=y\\\\\frac{5}{2}x+10=y\\\\\frac{5}{2}x+10=f^{-1}(x)=g(x)

b) . Use composition to show that f(x) and g(x) are inverses of each other.

\mathrm{For}\:f=\frac{2}{5}x-4\:\\\\\mathrm{substitute}\:x\:\mathrm{with}\:g\left(x\right)=\frac{5}{2}x+10\\\\=\frac{2}{5}\left(\frac{5}{2}x+10\right)-4\\\\=x

Similarly,

\mathrm{g\left(x\right)=\frac{5}{2}x+10,\:f\left(x\right)=\frac{2}{5}x-4,\:g\left(x\right)\circ \:f\left(x\right)}\\\\\mathrm{For}\:g=\frac{5}{2}x+10\:\mathrm{substitute}\:x\:\mathrm{with}\:f\left(x\right)=\frac{2}{5}x-4\\\\=\frac{5}{2}\left(\frac{2}{5}x-4\right)+10\\\\=x

so, both are inverses of each other.

c) Draw the graphs of f(x) and g(x) on the same coordinate plane.

As shown below in the graph , Since for inverse function we need an axis of symmetry i.e. y=x

And both f(x) and g(x) are symmetry to y=x.

∴ f(x) and g(x) are inverses of each other.


5 0
3 years ago
Mary went on vacation from the uk to the us, so she had to purchase some dollars ($). how many pounds sterling (l) did she excha
kap26 [50]

Exchange rate L 1 = $ 1.5542

Mary has $ 135

Pounds that Mary exchanged 135/1.5542

= L 86.8614 = L 87

4 0
3 years ago
Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439439439 chocolate chip cookies, wh
pshichka [43]

Answer:

The new employee burn <u>1756 cookies</u> in the course of the day.

Step-by-step explanation:

Given:

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439 chocolate chip cookies, which represented 25 percent of all the cookies the employee burned in that day.

Now, to find the cookies the new employee burn in the course of the day.

Let the cookies the new employee burn in the course of the day be x.

Number of chocolate chip cookies new employee burned = 439.

Percent this represented of all the cookies the employee burned in that day = 25%.

Now, to get the cookies the new employee burn in the course of the day we put an equation:

25\%\ of\ x=439

\frac{25}{100} \times x=439

0.25\times x=439

<em>Dividing both sides by 0.25 we get:</em>

x=1756.

Therefore, the new employee burn 1756 cookies in the course of the day.

3 0
3 years ago
Solve the following inequality: 6x - 9 ≥ 11x - 17.
Juli2301 [7.4K]

Answer:

x ≤8/5

Step-by-step explanation:

6x - 9 ≥ 11x - 17

Subtract 6x from each side

6x -6x-9 ≥ 11x - 17-6x

-9 ≥ 5x- 17

Add 17 to each side

-9+17≥ 5x - 17+17

8≥ 5x

Divide each side by 5

8/5≥ 5x /5

8/5≥ x

5 0
3 years ago
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