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inn [45]
3 years ago
8

Please help I need to turn it in

Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0

Answer:

9² + 12² = 81+144 =225

X =

\sqrt{225}  = 15

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If a and b are independent events, p(a)=0. 20, and p(b)=0. 80, what is p(b|a)?.
goldfiish [28.3K]

Answer:

P(B | A) = 0.80

Step-by-step explanation:

For independent events A and B,     P(B | A) = P(B)

Therefore, P(B | A) = 0.80

3 0
3 years ago
Given the function f)(x) =-x^2+3x+8,determine the average rate of change of the function over the interval listed in the picture
Nadusha1986 [10]

Answer:

Vertex:

(

3

2

,

−

41

4

)

(

3

2

,

-

41

4

)

Focus:

(

3

2

,

−

10

)

(

3

2

,

-

10

)

Axis of Symmetry:

x

=

3

2

x

=

3

2

Directrix:

y

=

−

21

2

y

=

-

21

2

x

y

0

−

8

1

−

10

3

2

−

41

4

3

−

8

4

−

4

Vertex:

(

3

2

,

−

41

4

)

(

3

2

,

-

41

4

)

Focus:

(

3

2

,

−

10

)

(

3

2

,

-

10

)

Axis of Symmetry:

x

=

3

2

x

=

3

2

Directrix:

y

=

−

21

2

y

=

-

21

2

x

y

0

−

8

1

−

10

3

2

−

41

4

3

−

8

4

−

4

Step-by-step explanation:

7 0
3 years ago
X/7 = -3<br> 1. x = -21<br> 2. x = -10<br> 3. x = 4<br> 4. x = 21
SOVA2 [1]
X/7= -3
X= -21

Hope this helps!
5 0
3 years ago
The expressions given represent the measures of the acute angles of a right triangle Find the measure of each acute angle.
olasank [31]

Answer:

30, 60

Step-by-step explanation:

The sum of a triangles angles should be 180.

Subtract 90 because it's a right triangle.

180 - 90 = 90

Now we know the sum of the other angles should be 90.

x + 2x = 90

Solve for x.

3x = 90

x = 30

Now you substitute 30 for x.

(30), 2(30)

30, 60

4 0
3 years ago
Point L is on line segment
KengaRu [80]

Answer:

k is the option that makes sense

3 0
3 years ago
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