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RoseWind [281]
3 years ago
13

Pleaseee HELPPP will mark Brainly

Mathematics
2 answers:
nirvana33 [79]3 years ago
6 0

Answer:

KE length: 17

x = 3

Step-by-step explanation:

In this, the length of KE and EM should be the same. So we can put the numbers we have into an equation:

4x + 5 = 6x - 1

Then we just simplify

1 + 5 = 6x - 4x

6 = 2x

x = 3

Now we should find the length of KE with the expression used for KE:

4(3) + 5

12 + 5

17

Therefore, the length of KE is 17

RoseWind [281]3 years ago
3 0

Answer:

KE=17

Step-by-step explanation:

X=3

12+5=17

18-1=17

hope this helps :)

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Approximately how many times greater is 1.2×103 than 4×10−1 ?
Galina-37 [17]
3000 Quick answer
Let your calculator do the work. Be careful how you enter this in. (Are you supposed to estimate it? We'll get around to that.) Write it like this.

1.2 * 10^3 divided by 4 * 10^-1 Your calculator will do this nicely. The trick is the - 1. Put it in the calculator like this.
1.2 
*
10
^
3
=
÷
4
*
10
^
(-1) 
= The calculator should read 3000
That's one way to do it. Another way is just to do it all by hand. The numbers are easy enough
1.2 * 10^3 means shift the decimal 3 places right. 1 200 which is 1200
4 * 10^-1 can be handled 2 ways 10 to the minus 1 in the denominator becomes 10^1 in the numerator. Notice the sign change on the 10 when you shift if :it becomes plus! That's why you did it.

1200 * 10^1 
12000

Now you are still left with 4 in the denominator.
12000/4 = 3000. 

The first method always works. The second one gives you a better understanding of how powers work. There are other ways of doing this, but these are the two best, I think.
4 0
3 years ago
Which function is a quadratic function?
dsp73
I think the answer is b
4 0
3 years ago
Given y=-3/4x-2. What is the equation of the line that is perpendicular and has the point (-4,1)? Write answer in slope intercep
raketka [301]

Answer:

y=4/3+19/3

Step-by-step explanation:

When it asks for perpendicular it means your focusing on the slope.

Perpendicular means opposite of the current slope, so flip it and change the sign (-3/4 changes to 4/3). Next you will use the equation (y-y1)=m(x-x1)

y1=the y value given

x1=the x value given

m=your slope

(y-1)=4/3(x+4)     Since the x point is minus a negative we get to change the sign to a positive. Next distribute the 4/3 to each term in the parenthesis.

y-1=4/3(x)+4/3(4)

y-1=4/3x+16/3     Now we add the one to both sides.

 +1          +1          The one isn't in teh correct format to just add so first imagine it as 1/1. Now to get the bottom to have a 3 like in 16/3 we just multiply the top and bottom by 3.

\frac{1}{1} x\frac{3}{3}=\frac{3}{3}       Now we can add this to the 16/3

\frac{16}{3} +\frac{3}{3}=\frac{19}{3}  We can now put this back into our equation.

y=4/3+19/3

6 0
3 years ago
Ms. Ellis expected 50 families to attend parent teacher conference but 60 families attended. What is the percent error?
natulia [17]

Answer:

20%.

Step-by-step explanation:

That is  (60 - 50) / 50

= 10/50

= 1/5

To convert to a percent we multiply by 100:

= 20%.

6 0
3 years ago
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mr Goodwill [35]

Answer:

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Step-by-step explanation:

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3 years ago
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