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iren2701 [21]
3 years ago
8

Classify this triangle

Mathematics
2 answers:
Liula [17]3 years ago
8 0

Answer:

right triangle

Step-by-step explanation:

Gekata [30.6K]3 years ago
4 0

Answer:

Right triangle

Step-by-step explanation:

becuase it is

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Find roots of 4x^2-2x+9
Korolek [52]

discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0

since discriminant <0, graph is always positive, x has no real roots

4 0
3 years ago
Give the excluded values for the rational equation.<br><br> (3x)/(x-4)-(x+3)/(x+4)=(2x+7)/(x^(2)-16)
scoray [572]

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{x^2-16}

We factor the denominators

Factor x^2 - 16

x^2 - 4^2

We use a^2 - b^2 = (a+b)(a-b)

so x^2 - 4^2 = (x+4)(x-4)

Replace it in the given equation

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{(x+4)(x-4)}

Excluded values are the values that makes the denominator 0

we have (x-4)  and (x+4) in the denominator

We set the denominator =0 and solve for x

x-4 =0

Add 4 on both sides

x= 4

x+4=0

subtract 4 onboth side

so x= -4

Excluded values are x=-4 and x=4




8 0
3 years ago
Read 2 more answers
If abcd is dilated by a factor of 3, the coordinate of a would be?
Katyanochek1 [597]

Answer: (-9, -3)

Step-by-step explanation:

A = (-3, -1)

A' = (-3, -1)*3 = (-9, -3)

4 0
1 year ago
Eloise practiced piano for 25 of an hour. Sarah practiced piano for 34 of an hour.
MrMuchimi

Answer:

34 - 25 = 9

Step-by-step explanation:

7 0
3 years ago
Tests for tuberculosis like all other diagnostic tests are not perfect. QFT-G is one of such tests for tuberculosis. Suppose tha
Sauron [17]

Answer:

the probability of an adult getting a NEG result and truly having tuberculosis is 0.0127

Step-by-step explanation:

S = the adult really has tuberculosis.

S' = complement of S = the adult does not has tuberculosis.

POS = the test gives a positive result

P(S)= 0.05

P(POS | S)=0.746

P(NEG | S')= 0.7653

this is an intersection because the "and" word

P(NEG ∩ S) =  P(NEG| S)*P(S)=(1-P(POS | S))*P(S)=(1-0.746)*0.05=0.0127

6 0
3 years ago
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