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Galina-37 [17]
3 years ago
7

What is the solution set for 7x−4=3x+8 , given the replacement set {2,3,4,5} ?

Mathematics
2 answers:
sp2606 [1]3 years ago
6 0

Answer:X=3

Step-by-step explanation:

mario62 [17]3 years ago
4 0
7x-4=3x+8
4x-4=8
4x=12
x=3
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Describe the relationship between the area of a circle and its circumstances
valentina_108 [34]

Answer:

A = \frac{r}{2}C

Step-by-step explanation:

Given

Shape: Circle

Required

The area and the circumference (relationship)

This implies that, we write an expression that relates the area and the circumference.

Circumference is calculated as:

C = 2\pi r

Area is calculated as:

A = \pi r^2

The area can be rewritten as:

A = \frac{2\pi r^2}{2}

Further rewrite as:

A = \frac{r}{2}*2\pi r

Recall that:C = 2\pi r

So, the expression becomes

A = \frac{r}{2}*C

A = \frac{r}{2}C

6 0
3 years ago
Find an equation for the line with the given properties. Perpendicular to the line 7x - 3y = 68; containing the point (8, -8)
Sever21 [200]

Answer:

y=\dfrac{-3}{7}x-\dfrac{32}{7}

Step-by-step explanation:

Given that,

A line 7x - 3y = 68 and containing the point (8, -8).

The equation can be written as :

-3y=68-7x\\\\y=\dfrac{68}{-3}+\dfrac{7x}{3}\\\\y=\dfrac{7x}{3}+(\dfrac{-68}{3})

The slope is :7/3

Line is perpendicular so use m = –3/7

-8=(-\dfrac{3}{7})\times 8+b\\\\-8+\dfrac{3}{7}\times 8=b\\\\b=\dfrac{-32}{7}

So, required equation is :

y=\dfrac{-3}{7}x-\dfrac{32}{7}

6 0
3 years ago
A Ferris wheel at the local fair has a diameter of 36 feet and a midline of 15 feet. This Ferris wheel makes one revolution ever
AVprozaik [17]

Answer:

Hold on let me seee!!!!!!!

5 0
3 years ago
What is 15.37×5 show work
just olya [345]
This should be quite easy to explain. So the first thing you want to do is multiply them. This isn't to hard if you know your times tables. Don't worry about the decimal till the end.

 15.37
×      5
---------
 76.85

15.37 times 5 is 76.85

Now on to the decimal. All you need to do is move it two times to the left. You see how it's in between the 5 and 3? The same goes for your answer. So it is 76.85 

I hope this helped!! ^^ I can make this a little more easier to explain if you want me to just in case, ok? 
3 0
3 years ago
Read 2 more answers
The sum of eight times a number and fifteen is seven
asambeis [7]
8x+15=7

In the statement the phrase the sum of can tell you that it is going to be an addition problem. So 8x ( eight times a number) would be added to the 15, 8x+15. Since its an addition problem the part where it says ' ... is seven', you know that it will all equal 7. So the answer would be 8x+15=7.
3 0
2 years ago
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