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sp2606 [1]
4 years ago
8

Please help!!! I would like an explanation along with your answer. Thanks

Mathematics
1 answer:
Korvikt [17]4 years ago
4 0

Answer:

x = 12/13

BC = 140/13

Step-by-step explanation:

If A is the mipoint of BC, then AB is half of BC.

AB = BC / 2

8x − 2 = (3x + 8) / 2

16x − 4 = 3x + 8

13x = 12

x = 12/13

BC = 3x + 8

BC = 3 (12/13) + 8

BC = 36/13 + 104/13

BC = 140/13

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Let g(x)=-x^2+8x+4. find g(-5)
Assoli18 [71]

Answer:

-11

Step-by-step explanation:

g(-5)=-5^2+8(-5) +4

=25+-40+4

=-11

8 0
3 years ago
Can someone help me with my math<br> −36+x&lt;8
Katena32 [7]

Answer:

x<44

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
The large and medium shapes are scale drawings of the smallest shape the scale factor from the large shape to the media shape is
vovangra [49]

Answer:

25

Step-by-step explanation:

Add 65+40 which is going to give you 105 then once you get 105 subtract 65-40 which is going to give you 25 the 105 is the total so the whole answer is 25

5 0
3 years ago
Assume that 140 surveys are completed. Of those surveyed, 71 responded positively to effectiveness, 60 responded positively to s
liraira [26]

Answer:

15

Step-by-step explanation:

Let n(T) denotes total surveys done i.e. n(T)=140

Let n(A) be the no. of responses to positively to effectiveness i.e. n(A)=71

Let n(B) be the no. of side effects i.e.n(B) =60

Let n(C) be the no. of responses to cost i.e. n(C)= 65

33 responded positively to both effectiveness and side effects

So, n(A∩B)=33

31 to effectiveness and cost

n(A∩C)=31

28 to side effects and cost

n(B∩C)=28

21 to none of the items

So, n(A∪B∪C)=140-21 = 119

we are supposed to find ow many responded positively to all three i.e. n(A∩B∩C)

Formula:

n(A∪B∪C)=n(A)+n(B)+n(C)-n(A∩B)-n(A∩C)-n(B∩C)+ n(A∪B∪C)

119=71+60+65-33-31-28+ n(A∪B∪C)

119=104+ n(A∪B∪C)

119-104= n(A∪B∪C)

15= n(A∪B∪C)

Hence 15 responded positively to all three

7 0
3 years ago
Please Help!: 36x = $45.00
artcher [175]
45.00/ 36
move the decimal. do the same to the 36.
4500/ 3600
<u><em>1.25</em></u>
7 0
3 years ago
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