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ipn [44]
3 years ago
8

Find the value of k. Then angle measures of 45 and 2k Sum of angle measures 180

Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

67.5°

Step-by-step explanation:

180 -45 = 135

135 / 2

k= 67.5

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2x3 - 7x² - 4x = 0 <br><br> Polynomial factoring
kupik [55]

Answer:

Download Photomath

Step-by-step explanation:

To Answer Easily and follow me :)

8 0
3 years ago
Pleasssseeee hellllpllllllppppp???????
olchik [2.2K]

Answer:

f(x) and g(x) are inverse functions

Step-by-step explanation:

In the two functions f(x) and g(x) if, f(g(x)) = g(f(x)) = x, then

f(x) and g(x) are inverse functions

Let us use this rule to solve the question

∵ f(x) = 3x²

∵ g(x) = \sqrt{\frac{x}{3}}

→ Find f(g(x)) by substitute x in f(x) by g(x)

∴ f(g(x)) = 3(\sqrt{\frac{x}{3}})²

→ Cancel the square root with power 2

∴ f(g(x)) = 3(\frac{x}{3})

→ Cancel the 3 up with the 3 down

∴ f(g(x)) = x

→ Find g(f(x)) by substitute x in g(x) by f(x)

∴ g(f(x)) = \sqrt{\frac{3x^{2}}{3}}

→ Cancel the 3 up with the 3 down

∴ g(f(x)) = \sqrt{x^{2}}

→ Cancel the square root with power 2

∴ g(f(x)) = x

∵ f(g(x)) = g(f(x)) = x

→ By using the rule above

∴ f(x) and g(x) are inverse functions

5 0
2 years ago
What is the answer to his question
horsena [70]

Answer:

A. 720 per hour

Step-by-step explanation:

1200+ <em>720</em> + 720 + <u>360</u> =3000

        <em>hr 1↑</em>+ hr 2↑ + <u>↑30 min</u>

8 0
3 years ago
0.25q+0.10d=4.95<br> D=3q
lorasvet [3.4K]
0.25q + 0.1d = 4.95
d = 3q

0.25q + 0.1(3q) = 4.95
    0.25q + 0.3q = 4.95
               <u>0.55q</u> = <u>4.95</u>
                0.55     0.55
                      q = 9
0.25(9) + 0.1d = 4.95
    2.25 + 0.1d = 4.95
  <u>- 2.25             - 2.25</u>
               <u>0.1d</u> = <u>2.7</u>
                0.1     0.1
                    d = 27
5 0
3 years ago
In a direct variation equation, f(x)=6 when x = 4. What is the direct variation equation?
jeyben [28]

Answer:

f(x) = \dfrac{3}{2}x

Step-by-step explanation:

The general direct variation equation is

y = kx

Plug in x = 4 and y = 6 and solve for k.

6 = k * 4

4k = 6

k = 6/4 = 3/2

f(x) = \dfrac{3}{2}x

7 0
4 years ago
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