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3 years ago

Anybody know the answer?

Mathematics

1 answer:

Yakvenalex [24]3 years ago

3 0

Note that 18=2(9) or 18=2(3)(3) or 18=2(3)^2.

Then log 18 = log 2(3)^2 = log 2 + 2log 3.

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Write a equation of the lines passes through the given points (-2,7) (1,1) the equation is?

vredina [299]

The point-slope form:

$y-y_1=m(x-x_1)$

m - slope

(x₁, y₁) - point

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (-2, 7) and (1, 1). Substitute:

$m=\dfrac{1-7}{1-(-2)}=\dfrac{-6}{3}=-2$

$y-7=-2(x-(-2))\\\\\boxed{y-7=-2(x+2)}$ point-slope form

$\boxed{y=-2x+3}$ slope-intercept form

$\boxed{2x+y=3}$ standard form

7 0

3 years ago

There are eight members of a jazz club who are listed below. A concert director can choose some or all of them to be part of a l

bagirrra123 [75]

Answer:

40320 ways

Step-by-step explanation:

Given

Members = 8

Required

Number of ways they can be selected

Since, the order does not matter;

They can be selected in 8! ways

$8! = 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1$

$8! = 40320\ ways$

Hence, there are 40320 ways which the director can select them for the concert

8 0

3 years ago

What time between 6pm and 6:30 pm the hour and minutes hands be exactly 125* degree apart

vladimir2022 [97]

Answer:

6:10pm

Step-by-step explanation:

At 6:00 the hands are 180° apart.

The hour hand moves 1/12 of circle per hour = 30° per hour = 0.5° per minute.

The minute hand moves 1/60 of the circle per minute = 6° per minute

Angle between the hands decreases by 6-0.5 = 5.5° per minute.

180 - 5.5t = 125

t = 125/5.5 = 10 minutes

The hands are 125° apart at t minutes after 6:00, or 6:10.

4 0

2 years ago

Match the function with the graph. a. Y=√ x+4 b. Y=√ x-1 c. Y= √ x-1+4 d. Y=√ x+1

Musya8 [376]

Answer:

c. $y = \sqrt{x - 1} + 4\\$

Step-by-step explanation:

The x-1 is there because you can see that the starting point is 1 left from the y axis, and +4 because it starts four points above the x axis.

4 0

2 years ago

What is the area of the figure?

Furkat [3]

21.0 yd^2 i THINK good luck

3 0

2 years ago