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jeka57 [31]
3 years ago
12

PreAlgebra exercise 4/7 + - 1/4 =

Mathematics
2 answers:
musickatia [10]3 years ago
6 0

Answer:

0.32142857142

Step-by-step explanation:

Svetach [21]3 years ago
4 0
9/28 would be the answer.
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1. 112<br><br> 2. 136 <br><br> 3. 68 <br><br> 4. 158 <br><br> 5. 129
RideAnS [48]

Answer:

4. 158

Step-by-step explanation:

First let's make things a little simpler and put these arcs in terms of x.  We know that the degree measure around the outside of a circle, regardless of its size, is 360.  So let's say that arc BC is x.  That means that arc BDC is 360 - x.  This is because arc BC + arc BDC = 360.  Substituting in our x's we have:

x + 360 - x = 360 and

360 = 360.  (That's just the proof that putting in our x's as we did does in fact work!)

Following the formula then, we have

22=\frac{1}{2}(360-x-x) and

22=\frac{1}{2}(360-2x)

Multiply both sides by 2 to get rid of the fraction and get

44 = 360 - 2x

Subtract 360 rom both sides to get

-316 = -2x

Divide both sides by -2 to get that x = 158

Since we are looking for arc BC and we designated arc BC as our x, that means that arc BC = 158.

3 0
4 years ago
Find the distance between the two points rounding to the nearest tenth (if necessary). (2,−3) and (0,−8)
saveliy_v [14]

Answer:

square root of 29

Step-by-step explanation:

use the distance formula and then plug the numbers in, i got the sqrt(29) after i did that

6 0
3 years ago
I really need help with this no sum answers or else. You will get 20 points and brain list
nordsb [41]

Answer:

if their asking for % then this is the answers

1. 41% of 900 is 369

2. 24%

3. 46%

4. 23%

5. 95%

6. 23%

7. 75%

8. 22%

9. 92%

10. 45%

5 0
3 years ago
Read 2 more answers
System of equations with different slopes and different y-intercepts have one solution.
Pavlova-9 [17]
The answer is :
<span>A. Always


Also </span>
<span>If two equations have different slopes but equivalent y-intercepts, they will have one solution and that will be the point where the y-intercept is. If two equations have different slopes and different y-intercepts, then there will be one solution where those two lines meet. If two equations have the same slope but different y-intercepts, the lines will be parallel, and there is no possible intersection point. And if two equations have equal slopes and equal y-intercepts, these lines will have an infinite amount of solutions, because if the equations are one the same line, every single point on that line is a solution to the system. </span>
7 0
3 years ago
Read 2 more answers
Cindy averaged 88 on the first four tests of the year in her Algebra 2 class. If she scores a 95 on each of the remaining tests,
Dvinal [7]
Let x represent the number of remaining tests this year.

[4(88) + x(95)]/(4 + x) = 93
352 + 95x = 372 + 93x
2x = 20
x = 10
3 0
4 years ago
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