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yulyashka [42]
3 years ago
12

Are these equvilant and what properties are they i need the answer asap

Mathematics
1 answer:
marta [7]3 years ago
6 0
18. equivalent
16x5 does equal 10x8
19. equivalent
13-0 does equal 0
20. Not equivalent
12-2 doesn’t not equal 7-3
For all three of these equations you have to use PEMDAS (systems of equations) so first you solve everything that’s in parentheses, then any exponents, followed by multiplication,division,addition, and lastly subtraction. You MUST follow that order to get the correct answer.
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Write the equation of the line perpendicular to y = -3/4x that passes through the point (3,-8)
arlik [135]

Answer:

y = \frac{4}{3} x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{3}{4} x ← is in slope- intercept form

with slope m = - \frac{3}{4} , c = 0

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{3}{4} } = \frac{4}{3} , then

y = \frac{4}{3} x + c ← is the partial equation

To find c substitute (3, - 8) into the partial equation

- 8 = 4 + c ⇒ c = - 8 - 4 = - 12

y = \frac{4}{3} x - 12 ← equation of perpendicular line

4 0
2 years ago
At a certain school,5/9 of the students are boys. Today, 2/3 of the boys brought their lunch. What fraction of the students are
Elodia [21]
5/6 of the boys brought their lunch.



In order to determine the answer you need to divide 5/9 by 2/3 in which will give you 5/6.
4 0
2 years ago
I will give u brainliest
Leto [7]

Answer:

45

Step-by-step explanation:

73+62=135

180-135=45

180 is the whole area of the triangle

4 0
2 years ago
Step 1: A poll of 1500 college students were asked whether or not they had used the Internet to find a place to live sometime wi
Gnoma [55]

Answer:

n = 1500

Step-by-step explanation:

The sample size is the number of students  that were asked

n = 1500

7 0
3 years ago
Multiply. -3 2/3 x - 2 1/4. choices -8 1/4 -6 1/6 6 1/6 or 8 1/4
Artemon [7]

Answer:

8 1/4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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