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nadezda [96]
3 years ago
13

WILL RATE IF YOU ANSWER PLEASE HELP Kayla measured a line to be 3.4 inches long. If the actual length of the line is 4.5 inches,

then what was the percent error of the measurement, to the nearest tenth of a percent?
Mathematics
1 answer:
Serggg [28]3 years ago
5 0

Answer:

77.8% is the answer hope it helps. its actually 77.777777778 but its to nearest tenth so round up

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I made a mistake its this question ​
Fittoniya [83]
Wait I don’t really get it but if you mean the result it is -5x^2 + 5 tho
7 0
2 years ago
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Solving and graphing systems of equations
dusya [7]
Hey Jackson!

-4x + 3y = 3
y = 2x + 1

Ok so what we need to do is solving y= 2x + 1 for y.

So let's start by using the substitution method :)

Substitute 2x + 1 for y in -4x + 3y = 3

-4x+ 3y = 3

-4x + 3(2x + 1) = 3

-4x + (3)(2x) + (3)(1) = 3

-4x + 6x + 3 = 3

2x + 3 = 3

Subtract 3 on both sides

2x + 3 - 3 = 3 - 3

2x = 0

x = 0/2

x = 0

So now since we find the number for x, we gonna use it to help us find the value for y.

To find y, we need to substitute 0 for x in y = 2x + 1

y = 2x + 1

y = 2(0) + 1

y = 0 + 1

y = 1

Thus,

The answer is: y = 1 and x = 0

How to graph?

You need to go on the thing where they put the numbers. y is located on top which has the positive numbers. So when you get there, make a line that comes from the top right side all the way to the bottom left sides. Remember that y = 1 so the line must pass through 1

I am not good with explanation. So I'll leave the graph down below then you'll see what I am talking about :)

Let me know if you have any questions. As always, it is my pleasure to help students like you!


3 0
3 years ago
Pleasee help me with this i’m being timed
sammy [17]

Answer:

I think she is correct

Step-by-step explanation:

in not. sure so dont take my word for it

4 0
3 years ago
What is the value of n - 7 when n = 14
Burka [1]

Answer: 7

Step-by-step explanation:

We substitute n for 14 to get the equation 14-7, which equals 7.

6 0
1 year ago
Who ever solve this first I will give Brainliest to them
andriy [413]

Answer:

9

Step-by-step explanation:

In order to solve this problem, you need to understand how the area of a parallelogram works. If you already know how the area of a parallelogram and the area of a triangle are related, then adding 79 and 10 and subsequently subtracting 72 and 8 to get 9 should make sense

5 0
2 years ago
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