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igor_vitrenko [27]
3 years ago
13

What is the standard form of (4,4), perpendicular to y = -4/9x

Mathematics
1 answer:
Rudik [331]3 years ago
8 0
Y=9/4x-5 is the standard form.
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Use the substitution method to solve the following system of equations:
Ivenika [448]
Using the first equation:
4x = y + 3   --->   y = 4x - 3
We then substitute this into the second equation:
7x - 9(4x-3) = -2   --->   7x - 9x + 27 = -2   --->   -2x = -29   --->   x = 14.5
8 0
3 years ago
Read 2 more answers
For each value of y, determine whether it is a solution to -2y+75-5.<br> Is it a solution?
ser-zykov [4K]

Answer:

• No

• Yes

• Yes

• No

Step-by-step explanation:

To determine if the 4 given values of y are solutions to the inequality, start by solving the inequality. Solving an inequality is just like that of an equation, except that the direction of the sign changes when the inequality is divided by a negative number.

-2y +7≤ -5

Subtract 7 on both sides:

-2y≤ -5 -7

-2y≤ -12

Divide by -2 on both sides:

y≥ 6

This means that the solution can be 6 or greater than 6.

-10 and 3 are smaller than 6 and are not a solutions, while 7 and 6 satisfies the inequality and are therefore solutions.

_______

Alternatively, we can also substitute each value of y into the inequality and check if the value is less than or equal to -5.

Here's an example to check if -10 is a solution.

-2y +7≤ -5

When y= -10,

-2y +7

= -2(-10) +7

= 20 +7

= 27

Since 27 is greater than 5, it is <u>not</u> a solution to the inequality.

3 0
2 years ago
What is a common denominator for 1/4 and 5/6!?!? PLEASE HELP!!!!!!
UNO [17]
A common denominator for 1/4 and 5/6...
1/4 = 3/12
5/6 = 10/12
the common denominator (LCM) would be 12
5 0
3 years ago
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Using the given postulate, tell which parts of the pair of triangles should be shown congruent.
weqwewe [10]

Answer:

it should be the 5th one because it shows defencicy

Step-by-step explanation:

from what i know

4 0
2 years ago
The Petersons deposited $1,000 in an account that earns 2% annual simple interest. How many years will it take the amount in the
Svetlanka [38]
Each year it will gain $10 so it will take 50 years.

1,000 × .02 = 20
1,000 ÷ 20 = 50
7 0
3 years ago
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