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Fantom [35]
3 years ago
12

72x2 + 39x + 207 = 0​

Mathematics
1 answer:
JulsSmile [24]3 years ago
6 0
The answer is x=-9



Hope this helped:)
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If m∠ATB = 20°, m∠BTD = 72°, and m∠CTD = 38°, what is m∠ATC?
Ber [7]

Answer: m∠ATC = 54°

Step-by-step explanation:

Ok, we know that:

m∠ATB = 20° and  m∠BTD = 72°

then we must have that the angle between A and D, is equal to the sum of the angles between A and B, and B and D, or:

m∠ATD = m∠ATB + m∠BTD = 20° + 72° = 92°

Now, we also know that m∠CTD = 38°

And the angle:

m∠ATC  will be equal to the angle between A and D, minus the angle between C and D, or:

m∠ATC = m∠ATD - m∠CTD = 92° - 38° = 54°

7 0
3 years ago
A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone d
kompoz [17]

Answer:

The function f(x) is represented by:

f(x)=1500(0.97)^x

Hence, a=1500 and b=0.97

Step-by-step explanation:

The patient currently has a bone density of 1,500 kg/mg^3.

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually.

This means that the bone density that is remaining is:

100-3=97%

which is also represented as: 97%=97/100=0.97

Hence, the function f(x) that represents the bone density after x years is represented by:

f(x)=a(0.97)^x

where a is the initial bone density which is given to be: 1500 kg/mg^3.

Hence, the function is:

f(x)=1500(0.97)^x

6 0
3 years ago
Read 2 more answers
What is the solution to f (x)=g (x), if f (x)=-x and g (x)=x​
Llana [10]

Answer:

Step-by-step explanation:

7 0
3 years ago
Find all angle measures
Natali [406]

Answer:

1=90

2=68

3=112

4=112

5=68

6=68

7=112

8=112

3 0
3 years ago
Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?
hoa [83]
7/9 is the answer I believe

8 0
3 years ago
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