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KonstantinChe [14]
3 years ago
11

a) Choose any two points. Consider their locations in the plane. How are they the same? How are they different? Write down at le

ast three things you notice. b) Name the coordinates for each point: A ( , ) B ( , ) C ( , ) D ( , ) E ( , ) c) Make some observations relating coordinates to locations in the plane. (Here is an example: “When the first coordinate is positive, that point is located to the right of the y-axis.” Write down at least three things you notice.
Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

Answer:

a) Points A and B are symmetrical over the x-axis. Points A and B are on the same location on the x-axis but opposite directions on the y-axis. Points A and B lie on the same vertical line.

b) A (4,3); B (4,-3); C (3,-5); D (-4,-3); E (-5,3)

1. A point with a positive x-coordinate is to the right of the y-axis. [A,B,C]

2. A point with a negative x-coordinate is to the left of the y-axis. [D,E]

3. A point with a positive y-coordinate is above the x-axis. [A,E]

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About 16.6% of Americans can speak Spanish. We obtain a random sample of seventy-five Americans and determine the proportion in
egoroff_w [7]

Answer:

The probability that 25% or more in the sample speak Spanish is 76%.

Step-by-step explanation:

Sample of 75 Americans

If 25% or more in the sample speak Spanish, it can be deduced that 24% do not speak Spanish.

The proportion of those who do not speak Spanish is 18 (24% of 75)

Therefore, the proportion of those who speak Spanish is 57 (75 - 19)

This implies that 57/75 x 100 = 76% of the sample speak Spanish.

This 76% of the sample who speak Spanish is equal to the 25% or more who do speak Spanish in the sample.

Probability is the chance that an event may occur from many other events that could have occurred.  It is an educated guess or estimate of something or one event happening when all the events in the set are given an equal chance.

6 0
3 years ago
What is negative 1 over 12 - negative 3 over 4
Crazy boy [7]
-1/12 -(-3/4) = 8/12=2/3
4 0
4 years ago
Question 10
marin [14]
Answer

32 dollars

Explanation

4*8
8 0
3 years ago
- 26 = 8 + 5(a + 2)​
yawa3891 [41]

Answer:

-44/5 = a

Step-by-step explanation:

- 26 = 8 + 5(a + 2)​

Subtract 8 from each side

- 26-8 = 8-8 + 5(a + 2)​

-34 = 5(a +2)

Distribute

-34 = 5a +10

Subtract 10 from each side

-34-10 = 5a +10-10

-44 = 5a

Doivide each side by 5

-44/5 = 5a/5

-44/5 = a

7 0
4 years ago
The inverse of f(x)=2x-10
ArbitrLikvidat [17]

The inverse of the function f(x) = 2x - 10 is f-1(x) would be x/2 + 5.

Lets try to solve it,

We will be using the inverse function to solve this.

f(x) =2x - 10

Replace f(x) with y.

y = 2x - 10

Interchange x and y

x = 2y - 10

Solve for y

y = (x + 10) / 2

Replace y with f-1(x).

f-1(x) = x/2 + 5

Thus, the inverse of the function f(x) = 2x - 10 is f-1(x) = x/2 + 5

Learn more about inverse function on:

brainly.com/question/11735394

#SPJ10

7 0
2 years ago
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