Pls help with these questions, u don’t have to do both but it will help if u do :D thankss (will give brainliest)

Answers

Answer 1

Answer: To find the length of the sides of the isosceles triangle with vertices at A(1, -2), B(-5, 2), and C(2, 6), we need to calculate the distances between the points.

Let's first find the distance between points A and B:

Distance AB = √[(x2 - x1)^2 + (y2 - y1)^2]
Distance AB = √[(-5 - 1)^2 + (2 - (-2))^2]
Distance AB = √[(-6)^2 + (4)^2]
Distance AB = √[36 + 16]
Distance AB = √52 ≈ 7.21 (rounded to 2 decimal places)

Next, let's find the distance between points B and C:

Distance BC = √[(x2 - x1)^2 + (y2 - y1)^2]
Distance BC = √[(2 - (-5))^2 + (6 - 2)^2]
Distance BC = √[(7)^2 + (4)^2]
Distance BC = √[49 + 16]
Distance BC = √65 ≈ 8.06 (rounded to 2 decimal places)

Finally, let's find the distance between points C and A:

Distance CA = √[(x2 - x1)^2 + (y2 - y1)^2]
Distance CA = √[(1 - 2)^2 + (-2 - 6)^2]
Distance CA = √[(-1)^2 + (-8)^2]
Distance CA = √[1 + 64]
Distance CA = √65 ≈ 8.06 (rounded to 2 decimal places)

Since the isosceles triangle has two sides with the same length, the length of these sides is approximately 8.06 units (rounded to 2 decimal places).

To find the coordinates of the point where the line 2x + y = 11 crosses the x-axis, we need to set y to 0 and solve for x.

When y = 0, the equation becomes:

2x + 0 = 11

Now, isolate x:

2x = 11

x = 11 / 2

x = 5.5

So, the point where the line crosses the x-axis has coordinates (5.5, 0).

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What is the cube of the quotient 24 and 6

Answers

Quotient of 24 and 6 is : $\frac { 24 }{ 6 } =4$

and 4's cube is : ${ 4 }^( 3 )\quad =\quad 4\cdot 4\cdot 4=64$
The answer is 64

Show me the working out to: 48 week course, 12 hours a week. Must attend 80% of the class to pass. How many days can one have off?

Answers

If you would like to know how many days, weeks can one have off, you can calculate this using the following steps:

48 week course * 12 hours a week = 48 * 12 = 576 hours in total

80% of the class = 80% of 576 hours = 80% * 576 = 80/100 * 576 = 460.8 hours

576 hours in total - 460.8 hours = 576 - 460.8 = 115.2 hours

115.2 hours / 12 hours a week = 115.2 / 12 = 9.6 weeks

You can have 9.6 weeks off.

Evan Amos Evaluate Quadratic Functions Given f(x)=-x² +9x+11, find f(-3)

Answers

f(-3) = 25, you get this by replacing all x’s in the equation with -3

An electrician charges a $20 house call fee plus $30 per hour of work. Which equation represents this relationship?An electrician charges a $20 house call fee plus $30 per hour of work.

Answers

Answer:

20+30h

......................................

Find the value of y if given: 20y-2, 17y +3, 5x + 8, 21x

Answers

20y-2=
20y=2
20y/20=2/20
y=0.1

17y +3=
17y=-3
17y/17=-3/17
y=-0.176

The total rainfall in Forks, Washington, this October was 8 3/8 in. In September, 60% less rain fell than in October.How much rain fell in September in Forks, Washington?

Express your answer as a mixed number in simplest form.

Answers

Given:
October: 8 3/8 inches
September : 60% less rain fell than in October.

This means that only 40% rain fell in September based on the amount of rain that fell in October.

8 3/8 ⇒ (8*8)+3/8 = 67/8
40% is 4/10

67/8 * 4/10 = 268/80 = 3 28/80 or 3 7/20 or 3.35

28 ÷ 2 = 14
80 ÷ 2 = 40
14 ÷ 2 = 7
40 ÷ 2 = 20

In September 3 7/20 inches or 3.35 inches of rain fell.

If you would like to know how much rain fell in September, you can calculate this using the following steps:

60% of 8 3/8 in. = 60% * 8 3/8 = 60/100 * 67/8 = 201/40 = 5 1/40 in.

8 3/8 - 5 1/40 = 67/8 - 201/40 = 67/20 = 3 7/20 in.

The correct result would be 3 7/20 in.

Other Questions

f the sample size n=25, the sample mean = 10 and the sample standard deviation s=6, create the 90% confidence interval for the population mean and interpret it. A. The confidence interval is [7.52 ,12.48] and 90% of the population values fall in this interval. B. The confidence interval is [7.52 ,12.48] and there is a 90% chance that the population mean has a value that falls within this interval. C.The confidence interval is [7.95 ,12.05] and there is a 90% chance that the population mean has a value that falls within this interval. D. The confidence interval is [7.95 ,12.05] and 90% of the population values lie within this interval.

Bety compró 16 pares de calcetas, entre blancas y negras, y pagó $339. Los pares de calcetas blancas cuestan $24 y las negras $19. Plantea el sistema de ecuaciones y resuelve por el método que creas conveniente. Después toma foto y súbela en donde se indica.

Find the slope and y ✨

What is the solution of the following question? x^2+10x+25=12