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Hunter-Best [27]
3 years ago
11

If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x

Mathematics
2 answers:
sashaice [31]3 years ago
7 0
Given that D is the mid point of CE ,


So D will bisect CE, it means the length of DE and CD is equal.


=> DE + CD = CE



As DE and CD are equal,



=> DE + DE = CE

=> 2 DE = CE



Putting values from the question,


=> 2( 7x - 1 ) = 10x + 18

=> 14x - 2 = 10x + 18

=> 14x - 10x = 18 + 2

=> 4x = 20

=> x = 20 / 4

=> x = 10 / 2

=> x = 5

.





Therefore, the value of x is 5
sveta [45]3 years ago
6 0

X = 5 which gives you your answer. Sorry for no work I'm not sure how to do it.

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Factoring a polynomial
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2 years ago
If a triangle has a height of 12 inches and a base of 5 inches, what's its area? A. 90 sq. in. B. 45 sq. in. C. 60 sq. in. D. 30
Vilka [71]

Answer:

D

Step-by-step explanation:

(12*5)/2= 30

4 0
3 years ago
If U = the set of odd natural numbers and B = {13, 15, 17, 19, 21, 23, . . .}, find B′.
Yuki888 [10]

Answer:

{1,3,5,7,9,11}

Step-by-step explanation:

B' stands for the complement of B.

B' means set elements in the universe that aren't in B.

Here is the universe:

U={1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,...}

(The dots mean it continues with that pattern forever and ever.)

And the elements we taking out:

B={13,15,17,19,21,23,...}

So we taking out the odd numbers from U that are odd and greater than or equal to 13. (The dots mean it continues with that pattern forever and ever.)

So B' is the set of natural odd numbers that are less than 13:

{1,3,5,7,9,11}

8 0
3 years ago
Read 2 more answers
23 ones x 2 tens= answer
Kaylis [27]
The answer is 460
1. 23 ones is the same as 23
2. 2 tens is the same as 20
3. 23 ones x 2 tens is the same as       23
                                                            x20
                                                        ________
 


Hope you get it and hope i helped!
Buh-Bye
3 0
2 years ago
Read 2 more answers
Contains the x intercept of 4x-y=8 and the point (-4,3)
nydimaria [60]
<span>1.       </span><span>4x –y = 8, the point (-4, 3)
Let’s say y = 0
=> 4x – 8
=> 4x / 4 = 8 /4
=> x = 2
So the point is (2 , 0).
Now, we have 2 forms, the (2,0) and the (-4, 3)
=> (y2 – y1)(x2 – x1) = m
=> m = (0 - 3)(2-(-4))
=> m = (0 - 3)(2+4)
=>  m = (-3)(6)
=> m = -1/2
Thus,
y = -1/2x + a
=> 0 = -1 + a so a = 1
y = -x/2 + 1</span>



7 0
3 years ago
Read 2 more answers
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